Showing posts with label FT8. Show all posts
Showing posts with label FT8. Show all posts

Thursday, 13 August 2020

Some 6m Summer Excitement






With three seasons of FT8 under its belt, there’s no doubt that it's taken over as the number-one mode for the 6m band ... there are very few traces of CW or SSB to be found.

What it hasn’t taken away, is the magic!




For the most part, this summer’s conditions from the west coast were pretty normal, except for when they weren’t ... and when they weren’t, they were pretty spectacular!

The spectacular parts were highlighted by one particularly unique contact that can only be attributed to some heads-up operating skills, a little help from FT8 ... and the unpredictability of Sporadic-E.

On June 20, at 0056Z, K7CW (Paul), south-west of Seattle, nudged his signal all the way to Hong Kong, more specifically, to VR2ZXP’s crowded apartment building. But that’s not the incredible part. That happened when Paul heard and exchanged signal reports with Alfred’s tiny station!

Paul, K7CW

VR2ZXP is located in one of the most densely populated cities on the planet.


Not the best location for weak signal 50MHz DX!

"As I told to Paul, it’s a hard job to be a ham in VR2 Hong Kong especially for the DX. Hong Kong is a high density population city. 99% people are living in apartment only. The housing price here is crazy around US$1800 per sq. feet. Neighborhoods always complain why we setup antennas out of our windows and produce radiation to affect their health. So, what we just can do is to use a small whip with QRO for the QSO. Besides, interference is also serious. Thousands of air conditioner is surrounding me and a power station 132kV to 11kV is just faced to me in 1km away. Here the noise level on low HF band at night is S9."


As indicated above, Alfred’s station is located in a typical high-rise apartment, surrounded by numerous others, with no room for antennas. His solution is to clip a short (60”) whip antenna, horizontally mounted on his balcony railing, similar to this one from 20 years ago ... before being surrounded by noisy high-rise apartment buildings!




I’m not sure which is the most spectacular part of this contact ... that Alfred could detect Paul’s signal in such a noisy environment using such a small makeshift antenna or that Paul was able to copy the tiny signal coming from uptown Hong Kong.





K7CW's 9el - 50' Yagi at 80'
"Anyway, our QSO with Paul is really special. However, I am just a small potato on this story. Without below reason, our QSO may not be success.
1) Paul’s big gun antenna and his station perfect setup.
2) The JT operation mode which introduced by K1JT Mr. Joseph Hooton Taylor. Let me have a chance to say thank you to Joseph."
However, the summertime fun did not stop here. Early on the morning of May 31st, westerners were treated to what some 6m diehards called the best European opening they've ever experienced!
Up on Vancouver Island, John, VE7DAY, was surely glad that he checked the band early, as what followed was a European opening that bounced from one country to another for over 3-1/2 hours! By the time it was over, John had bagged 66 contacts on FT8 and 19 new DXCC entities, including the difficult to work 9H1 in Malta! John's list looks more like 20m CW rather than 50MHz in mid-summer: GM, PA, G, I, DK, 4O, 9H, OM, HG, LA, HB, OE, SM, 9A, MW, YT, OK, LZ, SV!
Long openings like this occur very rarely, making them even more thrilling and can cause even the most experienced 6m DXer’s mouse-hand to tremble with excitement!

Some of VE7DAY's wallpaper from the May 31st opening.

Others up and down the west coast also filled their log pages with ‘new ones’ ... unfortunately my exciter was on the workbench while replacing the screen so I never knew what I had missed until some time later ... probably just as well. I guess I must have been pretty naughty at some point, as the 6m gods definitely singled me out for special punishment that morning.

Once the exciter was back together I was able to catch a few good openings myself, the best of which was early on the morning of June 23 when I was able to work SV9CVY (Crete), SV1DH (Greece) and IS0AWZ (Sardinia).




Crete and Sardinia gave me DXCC #89 and #90. Three days later, during a nice opening to the southern states, J68HZ in St. Lucia snuck through the QRM for #91. After a further three days, on June 29, another very early opening put 8 more Europeans in the log including HA8CE (Hungary) and YU7EF (Yugoslavia) for #92 and #93 respectively.







The band also produced several long openings to Asia, usually in the late afternoon hours. Several contacts were made with South Korean stations, China and dozens with Japan.

All told, the band produced some exciting activity this summer. Countries worked here were:
JA, JW, TG, V31, J68, LA, SM, SV9, SV, IS0, EA, HA, YU, F, 9A5, BG, HL, EA8. Certainly FT8 had much to do with a good portion of the action but it is difficult to say just how much. Many of the Europeans were very strong and could have easily been worked on CW in a matter of a few seconds, rather than the 60 - 75 seconds required for a valid FT8 exchange, assuming there are no repeats. But it's contacts like Paul and Alfred's that continue to validate the special name given to the band ... you just never know what tricks might be next.

Friday, 26 June 2020

FT8 And The Magic Band



Today’s blog is directed to those that may be new to 6m or new to using FT8 on 6m. Some of the things discussed will make your experience on the magic band better for you and better for your neigbours.

Unlike using FT8 on the HF bands, 6m presents some different challenges, especially if you operate in a region where there may be a lot of other locals also using the band at the same time.


Although the weak-signal capability of FT8 has made it possible for many smaller stations or those with makeshift antennas to take advantage of the unique propagation 6m has to offer, it also can create problems for other users of the band when used inappropriately. In regions of dense population, even small stations can create very high local signal levels, often making it impossible for their neighbours to hear weak signals. This is not deliberately-caused QRM but arises when some operators operate 'against the flow’ and transmit on the opposite ‘sequence’ to everyone else in their local area.

On HF, one can transmit or listen on whatever time sequence they wish. Chosing ‘TX 1st’ or ‘TX 2nd’ is usually determined by who you hear calling CQ or who you wish to work. On 6m however, in a densely-populated region of local operators, chosing to transmit whenever you want to is a luxury that can create big problems for your neighbour who may be trying to hear that weak DX signal while you are transmitting!

These problem will not occur if everybody in the region uses and follows the same transmit-receive periods, so that everyone is listening or everyone is transmitting at the same time ... one or the other. Unfortunately, this ‘ideal’ system falls apart easily when one or more of your neighbours is not using the same sequence as everyone else.

For the past few years, a protocol that seeks to alleviate this problem has become popular and well accepted by those familiar with it. Those new to 6m may not know about it or understand the reasoning behind it.

Above all, I would urge new users of the band, or to the FT8 mode, to first listen carefully for a few minutes, before beginning operation, to determine what the majority of stations in their local region are using for sequencing. If they are using ‘TX 1st’, then your choice of ‘TX 2nd’ will likely cause hearing difficulty for many others, as well as for yourself.

Although there are no strict rules, there is a very successful and well-practiced protocol, and that is that the ‘easternmost’ station transmits on ‘1st’ while the ‘western end’ goes 2nd’. This is why you will hear most eastern stations in the morning hours transmitting ‘2nd’, as they are usually calling or looking for Europeans to their east, who are transmitting ‘1st’. By the same token, you will also hear western stations transmitting on '2nd', who are also looking for Europe to their east, transmitting on ‘1st’.

This sequencing protocol usually reverses later in the day when signals from Asia become a possibility, and all North Americans then become the ‘easternmost’ stations and will transmit on the ‘1st’ sequence ... unlike in the morning. I can easily see how newcomers to the band could become confused, when they hear both sequences being used! The best thing, once again, is to listen carefully first and then ‘go with the flow’.

You can read about the UK's Six Metre Group's initiatives regarding these protocols HERE.

OK... so you’re not interested in EU or Asia? Then it shouldn’t matter to you which sequence that you use and best operating practice would again be to ‘go with the flow’ in consideration of other users.

A few days ago I saw a prime example of exactly what not to do, in too many respects. I made a posting on the ON4KST 6m chat page that VE1SKY in NS (Nova Scotia) was being decoded here, mainly to alert others in my region that European signals might be coming next, as hearing the VE1s in BC is often an indicator that the European path is building.

In less than a minute, an S9+ local began calling ‘CQ NS’ on the exact opposite sequence of all others ... effectively blocking the waterfall and any possible hope of hearing weak EU signals. I’m sorry, but this is just terrible operating procedure, with almost zero chance of success, while showing no consideration for nearby users.

Just like working DX on CW or on phone, the best way, as it always has been, is to ‘listen, listen and then listen some more’. You will work FAR more DX by listening and calling at the right time, than you will by calling CQ.

I also see some local stations everyday, calling endless CQs, often for over 60 minutes straight and often with many replies that go unnoticed. With FT8, one can check ‘work 1st’, go away, and return later to see who they might have ‘worked’. Perhaps this is what these operators are doing, but they should understand that they are also creating non-stop QRM for other users ... those that choose to listen carefully to the band rather than to endlessly CQ. Once again, this is just poor practice.

You may argue that if nobody called CQ, then there would be no contacts made. There is nothing wrong with a few CQs but CQing for an hour? And don’t worry, there will always be other stations CQing endlessly for you to hear, even if it’s not a great way to operate.

With a little pre-planning for sequencing and consideration for your neighbours, everyone can and should be able to enjoy 6m FT8 with very few problems ... and that is my hope for all of us.

After forty-eight summers of CW and phone on 6m and two summers on FT8, these are some of my initial thoughts on how to best operate for maximum success and consideration for other band-users.

The latter is part of the basic framework upon which amateur radio was originally established, when back in 1914, the ARRL described in their 'Code of Conduct' for amateurs ... "The Amateur is Gentlemanly. He never knowingly uses the air for his own amusement in such a way as to lessen the pleasure of others." 

Now, let the magic, and the pleasure, continue!

Monday, 16 December 2019

FT8 ... Such A Tease

Looking towards EU over Georgia Strait, last winter



With the continued tsunami of FT8 activity on the HF bands, I decided to have a look at what was happening in the FT8 segment of 160m.




On Saturday afternoon, about ninety minutes before my local sunset here in south west British Columbia, I set my receiver and 160m half-sloper to work, along with WSJT-X, on 1840kHz USB mode.

Although still in broad daylight, the waterfall was immediately flooded with signals! As I started to pay closer attention, I realized that many of the signals were from Europe! Many were audible while the rest were fast-approaching that level, being stronger than -20db. I let the receiver run for another few hours and took a screen capture of my PSK Reporter screen, illustrating what had been decoded over that time span:

courtesy: https://www.pskreporter.info/pskmap.html

Checking other NW or VE7 monitors during the same time span showed no EU decodes at all, which I found surprising ... perhaps I missed someone. My location here on the eastern shoreline of Mayne Island looks towards EU and many other directions directly over a large body of saltwater ocean, Georgia Strait. The photo above was taken last winter, through the living room window. It is also very quiet, electrically, with little or no noise most of the time.

It appears that the lack of man-made noise combined with the theoretical 6db saltwater horizon gain (being realized), is enough to allow these signals to be heard. Signals continued to be decoded as darkness approached but at around 1800 local time, began to drop off ... evidently this appears to be a sunset enhancement, similar to what I often see to the east coast on the 630m band.

Now here’s where it gets even more interesting, as my decodes for the ninety minutes before and after local sunrise indicated a similar pattern!

The most probable path for these signals, around sunrise, would be via the long path in darkness. Although there is no saltwater directly behind me, it seems that the 'quietness' may be enough to do the job. Here’s the slightly post-sunrise screen cap from PSK Reporter:

courtesy: https://www.pskreporter.info/pskmap.html

FT8 is surely a tempting seductress. So far I have resisted the fast-growing urge to spark-up in this mode on 160m ... but I may be growing weaker. This all looks so very interesting.

Wednesday, 2 October 2019

An Interesting FT8 Afternoon


Lest my loyal blog-followers think I’ve taken a leap to the digital-darkside, rest assured this is not the case!


The only time that I (somewhat grudgingly) use FT8 is during the summer Es season, since most of the DX seems to have migrated to that mode. On Monday afternoon, during a moment of weakness driven by curiosity, I moved my receiver from 630m JT9 to 40m FT8 ... what might I see at around noon, via this popular weak signal digital QSO mode? To say that the results were surprising is an understatement!

40m at noon
The above screen capture shows the signals decoded between 12 and 1PM local time! Although it was surprising to see all of the east coast signals, it was shocking to see all of the signals (a dozen or more) coming from Japan and South Korea! All of them were working Europeans to their west, none of which were decoding here.

With an all-daylight path between VE7 and Asia, could these signals be coming via the long-path? If so, I would expect to see at least a few signals from other countries along the great circle path to Asia but none were forthcoming. Perhaps it’s a case of there being a sufficiently weak D-layer to allow signals to propagate on the direct path via the F-layer, in spite of the all-daylight path. What do you think?

I then moved the receiver down to 80m, and monitored there for the next two hours.


80m at 1500 local
The 80m screen capture above was made at 3PM local time! Once again, I was surprised to see so many signals coming from the east, in broad daylight! Is this further evidence of a weak D-layer or just a demonstration of the capabilities of FT8?

For both 80 and 40m, the antenna used was my 80m end-fed half-wave configured as an inverted-L ... 70’ straight up and 60’ horizontal. The feedpoint is one-foot above the ground and located beside the ocean, looking towards the east.

I then finished off the afternoon with a look on topband, using my 160m half-sloper. The screen capture of 160m was made at 5PM local time, fully two hours before my local sunset!


160m at 1700 local

Like the previous two bands, 160m was showing signals in broad daylight, from the east coast! Low D-layer absorption? ... salt water horizon gain? ... excellent antennas? ... or is this just the sensitivity of FT8 revealing 'normal propagation' that we can't hear on CW? I suspect that it's a complex combination of all of these factors and maybe others.

In reality, the weak-signal ‘digging power’ of FT8 is not too much greater than the threshold for audible CW ... hearing about 1 S-unit (~6-7db) deeper. Maybe that’s all it takes to peel-back, like an onion skin, another layer of hidden signals.

There are other weak-signal digital QSO modes much more sensitive than FT8. Both JT9 and JT65 can each hear more than an S-unit deeper than FT8 but at the expense of taking longer to do it ... there’s just no free-ride. I believe that the shorter (~15 second) sequencing of FT8 is the main reason for its overwhelming popularity, in spite of its lower sensitivity.

I’ll run this test again soon to see if Monday’s daytime prop was unusual or if it was typical of what to expect with weak-signal digital modes on the lower bands during the daylight hours ... either way, it was indeed, an interesting FT8 afternoon!

Sunday, 7 July 2019

Magic Band Mid-Season Observations

courtesy: KC8RP FT8 Info

We are now half-way through this summer’s Sporadic-E season, normally the magic band’s best time of the year. The only exception to this being the winter months of those solar cycles that are robust enough to raise the F2 MUF up as far as 50MHz ... something that occurred for only two or three days during the peak of Solar Cycle 24.

Unfortunately, it really looks as if the old reliable bread and butter modes on 6m, CW and SSB, are fast going the way of the dodo bird, as very few signals on either of these modes have been heard here this summer. As speculated last year at this time, it seems as though the weak signal (WSJT) FT8 mode now reigns supreme on the band, which has come as a great disappointment to myself and many other diehard CW ops.

At the start of this year’s season I reluctantly decided to pay more attention to this mode and see if it could put any  new DXCC entities into my 6m log ... if so, it would be time well-spent.

For the past several years, my main 6m interest has focused on European or South / Central American openings, which are usually unpredictable and short-lived. As usual, most of the season’s openings have been domestic, with signals from the central and south-eastern states being the ones most often heard. Usually, signals during these openings are strong and fairly reliable and lend themselves to easy two-way work on either CW or SSB. For the vast majority of summer time openings, FT8 is not needed, as signals are not weak.

For some reason, the popularity of this weak-signal mode on 6m continues to grow in popularity even though signals are so strong! Where this mode really shines is on the short-lived long haul openings to EU or on similar long paths from the PNW, of which there have been very few this season.

With everyone crowded into a narrow passband of ~ 2kHz, it doesn’t take much to mess things up for your neighbours if you don’t think carefully about how your operating can affect other users of that small sliver of space.

One of the most common examples of poor operating skills that I see is the seemingly endless CQ. This is much easier to do on FT8 than with conventional modes, as the software used can do this automatically for you, every 15 seconds ... while you fiddle with something else in the shack. I’ve seen some nearby stations call CQ continuously for over 60 minutes at a time, with no replies. What this does is make it difficult for other nearby users to actually hear / decode any weak signals on the band that are being covered by the loud CQing station(s) during this entire span of time. Strong local signals can wreak considerable havoc with weak-signal mode software as it's just not designed to happily handle strong signals and do a good job of decoding weak ones at the same time! Please think about this if you are one of those long CQers ... you are not the only one trying to use the band.

Another observation has to do with 'sequencing'. FT8 users must decide if they will transmit on the ‘even’ or on the ‘odd’ 15-second sequence. If you, and all of your neighbours are loud with each other, then it makes sense that everyone is better off operating on the same sequence. This way, all locals are transmitting at the same time which means they are all listening at the same time as well ... nobody causes QRM for one another if everyone uses the same sequence.

This comes off the rails very easily when just one or two strong neighbours choose to transmit during the receive sequence being used by everyone else.

There has been a long-standing precedent for sequencing, established and utilized by meteor-scatter operators for several decades. It calls for stations on the eastern-most end of a path (Europeans for example) to transmit on ‘evens’ ... the ‘0-15’ and ‘30-45’ second segment of each minute. Stations on the western-end of the path (NA) transmit on the ‘odds’ ... ‘15-30’ and ‘45-60’ second portion of each minute. When looking towards JA later in the day, everything reverses for NA stations, as they now become the eastern-end of the path.

Some operators seem to get totally confused by this or don’t check to see what sequence is being used locally before starting to operate ... while some don’t really seem to care.

I’m not complaining about what a given amateur chooses to do but simply describing some of the roadblocks to better use of FT8 and why it is not necessarily very well-suited for 90% of the typical propagation seen on 6m Es.

Many of the newer stations often seem to be using poor or makeshift antenna systems on 6m and are often not able to hear stations responding to their CQs, which may be strong enough locally to disrupt reception for those that are able to hear weaker signals.

I have deliberately made a point of never calling CQ on FT8. From decades of CW DXing I have come to understand that it’s much easier to work DX, on any band, by spending your time listening ... and then calling when the time is right. It’s no different with FT8, yet I see CQs that go on forever. Some will argue that if nobody called CQ, then there would be nobody to hear, which is of course valid ... the reality is, most amateurs cannot resist calling CQ, especially DX stations who enjoy working a pileup. There seems to be no shortage of CQers and those seeking DX should take advantage of that fact.

One loud station was seen yesterday calling another for over 90 minutes-straight. Perhaps he had wandered away from his shack and had forgotten to ‘Halt Tx’ before leaving! FT8 users need to understand how to use their software efficiently.

As for PNW to EU propagation this summer, it has been almost non-existent although I have worked CT1HZE in Portugal and JW7QIA in Svalbard ... by listening ... listening ... and calling briefly, both on FT8. In both cases, signals were brief but strong enough for CW! During the short-lived appearance of the JW7, two NA stations were noted calling ‘CQ JW’ the entire time. Perhaps if they had spent this wasted time more wisely by listening, they would have worked JW.

I’m happy to report that Svalbard was a new DXCC entity for me on 6m, #88, and the first 'new one' in a few years.

It seems that when used sensibly, FT8 is a useful application to have in your DX toolbox ... but for most daily summer Es operation, it’s just not needed. CW or SSB is well up to the task most of the time, even for small stations. Where FT8 shines is on the very brief, often unstable, long haul (EU-NA or JA-NA) paths and then, only if your neighbours don’t do things that will get them into the naughty-corner!

Now, let’s see what the second half of the season has in store for the magic band .... maybe the best is yet to come.




Wednesday, 12 June 2019

Back To The Magic

The magic band has always had a strong pull on me, ever since being put under its spell in the late 60s. I quickly learned that the surest way to guarantee a band opening was to leave the house for a few hours. Invariably when returning, the other local 6m addicts would gleefully describe everything that you had ‘just missed’. The 6m gods were rarely forgiving and this unfailing behaviour became part of the band's mystique.



This odd love-hate relationship continues to this day but with the FT8 mode being used almost exclusively now on 6m, it’s your computer that now snickers at you for any untimely excursions from the shack ... showing you, in any delightful color scheme that you choose, all of the DX that you 'just missed' once again!

It happened to me again yesterday, while out in the yard stacking next winter's firewood.

It was just a short excursion, as the eastern stations were working Europeans and all of the VE4 beacons were very loud back here on the coast. The possibilities of a link to the European path kept my excursion to only 10 minutes but sure enough, there it was on my WSJT-X list of decodes .... several CQs from CT7ANG in Portugal! My laptop could barely stop giggling. This would have been the first PNW-EU QSO of the summer had I been maintaining vigilance!

163315 -14 0.1 738 ~ CQ CT7ANG IM67

I continued to stack firewood and to watch the band more closely, knowing that every once in awhile, for entertainment purposes, the prop gods will toss out a bone or two, just to keep you on the hook.

A later check indicated that CT1HZE’s CQs had been decoded just a few moments earlier ... there was renewed hope!


185100 -2 0.2 2134 ~ CQ NA CT1HZE IM57


Joe’s strong FT8 CQ popped-up again a few minutes later and he came right back to my initial call. Although that was it for the day, the 2019 PNW-EU path had begun!

courtesy: PSK Reporter

I’m still somewhat ambivalent about FT8 and its ‘coldness’ when it comes to person-to-person interaction, but since most of the DX action on 6m is now digital, it’s either embrace it or miss out. At the moment, I’m at least prepared to hug it and see how it behaves. If it puts more Europeans and new DXCCs into my magic band log, then that’s a worthwhile investment.

Unlike way too many others, I’m not prepared to let my computer endlessly CQ for hours at a time. In a crowded local environment, with big strong signals being the norm, this method of operating is simply disrespectful to other amateurs as this mostly useless CQing will usually make reception of any weaker signals impossible.

FT8 is a weak-signal mode and the interfaces used do not handle extremely strong local signals very well. I would urge others to think about this poor operating practice and adopt what has always proved to be the best tactic for catching DX ... listen, listen, listen. The same tactic works just as well on FT8 as it does on CW.

Back to stacking firewood but having tossed me a bone yesterday, I’m sure the prop gods will be out to get even for awhile!

Friday, 7 December 2018

630m ... The New 'Magic Band'?



The 'magic band' has always been associated with 50 MHz and its amazing propagation ... usually unpredictable and often without logical explanation. This past summer saw an explosion of digital FT8 activity on 6m which has, for me (and for others I suspect), eliminated almost all of the enjoyment I have found every year on this band.


With so much of the previous CW and phone activity now gone to FT8, the 'feel' of the band is just not what it once was. What I find puzzling is that so many have embraced this weak signal mode yet most of the two-way QSOs seem to be made between stations that can easily hear each other ... often at the very strong levels produced by 6m sporadic-E!

With FT8's inability to chat about antennas, rigs, propagation, locations or simply to exchange names, for me the magic has gone. Being able to hear signals build, fade up and down, or to experience the sudden arrival of bone-crushing signals from the east coast where none had existed moments earlier, is all part of what attracted me to 6m decades ago. I spent only a few hours on the band last summer, working a number of JA stations on FT8. No particular sense of satisfaction was garnered ... working a JA opening on CW is just way more exciting!

For many, the arrival of FT8 to the magic band has opened a whole new world and from seeing so many unfamiliar call signs on 6m this summer, it seems that FT8 has brought a lot of newcomers to the band. Unlike the JAs' worked every summer on CW, almost all of the FT8 JAs' sent their QSL immediately, with almost all excitingly indicating "1st VE" ... so this has to be a good thing! I suspect, that unless the level of conventional-mode activity returns to previous levels on 6m (highly unlikely), my interest in 50MHz will slowly wane or vanish altogether ... but thankfully, there's still magic to be found elsewhere on the ham bands!

As solar Cycle 24 draws down into its final months, the deep lows that were experienced at the end of Cycle 23 are starting to develop once again. For the past few weeks, propagation below the broadcast band has been the best it has been since the previous solar quieting.

Being just below the bottom edge of the broadcast band, 630m (472-479 kHz) has seen some of the benefits of the recent round of stagnant geomagnetic activity.

While some transcontinental QSOs are regularly being made on CW, most contacts are being completed using the weak signal JT9 QSO mode. Contacts can often be completed just as the sun begins to set and staying up into the wee hours to catch east coast DX is not a requirement. Over the past few weeks my 'states worked' total has climbed to 30 and with a couple of holdouts, the QSLs have been steadily arriving.

My 630m states worked, shown in red. Map courtesy: https://mapchart.net/

Last month's arrivals, in spite of the Canada Post delivery disruptions, are shown below.




The recent great propagation on 630m is well-demonstrated by last Saturday night's activity. For the previous two evenings, my JT9 CQ's (as well as QSOs) were being decoded for hours at a time by Rolf, LA2XPA in Norway. He was also hearing Larry, W7IUV, located a few hundred miles to my southwest, on the other side of the Cascade mountains in Washington state. Both of our signals would fade and trade places in Norway but often reaching audible CW levels! The problem was that neither myself or Larry could see any of Rolf's replies to us ... disappointing to us and frustrating for Rolf.

After an hour of trying, I asked Rolf (via the ON4KST LF chat page) what he was using for a receive antenna. It turned out that his secret weapon was a 1000' beverage pointed this way ... no wonder he was hearing so well. Larry, who was using a shorter, easterly pointing BOG (Beverage On Ground) for 630m receive, commented that he also had a 1000' beverage pointed toward Europe but it was optimized for 160m and doubted that it would work on 630. Just to make sure, he plugged it into a second receiver and soon indicated that he 'might' have seen a weak JT9 trace on the waterfall, close to Rolf's frequency.

One minute later Larry's comment was just "wow!" and the following minute he explained what had occurred. It seems that the 'possible weak trace' had suddenly skyrocketed to a -16db signal ... right at the edge of audibility! Larry and Rolf quickly exchanged signal reports and "RRs" as the first Europe-West Coast 630m QSO went into the history books ... 'wow' indeed!

Rolf reported that at his end, Larry's already good signal suddenly shot up to -5db, an easily copied CW level, before fading away for the night. Larry was pretty shocked at how quickly this strong short enhancement had occurred and we all hoped that the oft observed 'spotlight' propagation seen on 630 would move further west to VE7 ... but for now, it was not to be.

Earlier in the evening I had commented to Larry about some previous quirky 630m propagation and had suggested to him that it was probably just due to "the magic of radio" ... to which he politely dismissed with "sorry no magic, just hard work and dumb luck". Looks like he was right on both accounts, but after Saturday's excitement I think he may now believe in a little magic as well!

Saturday, 21 July 2018

6m ... Where'd The Magic Go?


This summer's 6m sporadic-E (Es) DX season is now well past the half-way mark and things have been different ... a lot different. For me, the past 40 plus summers of activity on the magic band have always been interesting, if not down right exciting ... particularly when the band opens to Europe from the west coast.



These usually very short-lived paths have been my main interest for the past several years and the bread and butter mode is normally a fast CW exchange, usually taking less than 20 seconds before signals would vanish, as the always quirky west coast path to Europe would jump to another region. But this has all changed dramatically.

As well, it seems that this summer, the normal SSB and CW modes have been largely abandoned by a huge percentage of the crowd, in favor of FT8, the weak-signal digital QSO mode originally developed with 6m in mind.

I have seen many strong openings involving loud FT8 signals from various parts of North America but when tuning down to the CW/SSB section of the band, found nothing but ghostly silence! Gone are the familiar voices of friends met every summer for decades or the recognition of an old friend's fist on CW ... for me personally, most of the magic was missing this summer. I wonder if this is all part of the natural evolution of amateur radio or does the FT8 revolution signal the long term fate for many of the older conventional modes?

There appears to be a lot of new activity brought to the band by this mode, and many are experiencing the magic band for the first time. I have heard at least two dozen or more VE7 calls on 6m this summer that I have never heard before and this is a very positive thing! From what I can tell, many of the new stations on the band may have makeshift or simple antennas, such as verticals or dipoles and not something larger and are just getting their feet wet on the band.

FT8 allows for two-way weak signal work (a few db below audible limits) that the traditional modes would not support, and simpler stations, without big antennas, can now join the fun. I often see many of the newer stations calling CQ but not hearing their numerous replies, which leads me to think that their receive-capability does not yet match their transmit-erp ... perhaps they just have a lot of local noise or are running more power than they can properly deal with, something they should think about. Often the new FT8 stations will continually CQ, sometimes as long as 90 minutes at a time and create a lot of unnecessary and waterfall obliterating QRM on the band for those that do have good antennas and can hear what they do not. I'll do another blog later regarding FT8 on 6m, and what I have observed this summer.

Here on the west coast, up until last summer, it was fairly normal to have a few short-lived Es openings to Europe. You had to always be on your toes to catch these as they would vanish as suddenly as they appeared. The best of these was back in June of 2012 when a mid-morning opening produced 31 CW contacts in DL, F, SP, CT, ON, GM, IT, LZ, EI, G, S5, I and EA8. Nine new countries were put in the log that morning as the Es clouds danced around, shifting the propagation from one country to another, every other minute. This was the magic band at its best!

Like last summer, this year has produced almost zero trans-Atlantic propagation from VE7 land, other than contacts with CT1 and EA8, both on FT8. Perhaps some external factors are changing the band enough that this path will vanish permanently ... only time will tell. 
Dave, K7RWT, recently pondered if it may have something to do with the north magnetic pole migration over the past several years as it moves to the north-northwest at ~60km per year.

Track the pole's movement here.
Most mornings, the Europeans are into the east coast early, often times making into the central states and occasionally into the southwestern states:

July 18th courtesy: http://www.on4kst.org/chat/index.php
Later in the afternoon, it has not been unusual to see widespread JA to North America action, usually going straight overhead and as far back as the New England states and down to Florida!

July 20th courtesy: http://www.on4kst.org/chat/index.php

There have been several openings between here and JA, sometimes lasting for several hours. So far I've worked about 200 JAs this summer and judging by the flood of daily QSLs arriving from Japan, many are newcomers to the band (the FT8 effect?), often indicating that I was their 'first VE' contact on 6m.



Unlike the west coast to Europe openings, the JA-NA path appears to be growing, this summer particularly ... perhaps it's just those extra few db provided by FT8 that is responsible.

One particularly interesting 'opening' from here happened in the wee hours, starting just after 2300 local time and ending just after 0200, as all west coast operators were sawing logs. A morning check of my FT8 decodes indicated many strong signals from Japan, Taiwan, China, Korea and Hong Kong. I'm sorry that I missed out as the VR2 would have been a new country for me.

Overnight decodes July 8-9
 The non-JA stations heard were:

BM6GJL PL02
HL1BRU PM37
HL2IFR PM37
BG4QNE PM01
VR2VAZ OL72
BV2FB PL05
BV6CC PL03 

BV1EK PL05
BM3GFU PL04


Thanks to Paul, K7CW, for doggedly sorting through my all-night decode file which may be viewed in full here.

With just a couple of weeks left in the normal Es season, it will be interesting to see if FT8's extra few db will extend it longer than usual!

Monday, 20 November 2017

Best Digital Mode? ... Not Really

For the past year, as interest in the digital modes began to skyrocket, I have been reading the topical discussions and questions posted in the WSJT Yahoo Group.




Since the introduction of FT8, the group's daily traffic has soared and easily occupies the vast majority of inquiry.

Far and away, most questions either involve software / computer configuration problems or inquiries involving the operational use of the software itself. I am often surprised at the range of inquiry and in almost all questions involving the software itself, it just comes down to 'reading the manual' ... it seems that hams, like so many others, just don't like to read manuals and for a technically-oriented hobby, I find this peculiar. Perhaps it's because I'm just the opposite, and will usually go over instructional material, more than once, before plugging something in or installing any new software.

Not all digital modes are 'created equal' nor with the same purpose in mind and for those new to these modes or making the transition from traditional mode operations, sorting them out can often be a source of confusion. One such user broached this very topic with his recent inquiry:

I have been using JT65 and FT8 a lot, mainly on 6m DX to receive weak signals in the noise floor. QSB is acting fast there and the 15s intervals are a major advantage of FT8 to be able to complete rare contacts.
But which algorithm is better to decode weak signals in theory and practice? Do the long intervals allow the JT65 algorithm to decode weaker signals than FT8?
If both modes are equivalent is there any reason to use JT65 rather than FT8?

Bill, G4WJS, has been handling most of the technical inquiries and I thought his reply might help others that could be wondering the same thing:

... simple answer, neither wins in all situations. Each mode in WSJT-X is designed for a certain set of requirements and given those the protocol and the decoders try to optimize sensitivity and robustness.
JT65 was designed initially for EME where ultimate sensitivity was necessary and one minute T/R periods with variable bandwidths between 180Hz up to 400Hz, to cope with Doppler spreading, was deemed acceptable for practical QSOs.

FT8 is not as sensitive, a few dB behind JT65A but as you point out it is particularly suitable for multi-hop 6m Es propagation where openings can be very short. This is no surprise as it was crafted for exactly that. OTOH FT8 has become *very* popular on HF, probably because most HF QSOs do not need ultimate sensitivity and the 15s T/R period makes QSOs four times as fast compared with JT65. This last attribute is surely what is driving the massive uptake on HF on the current "easy DX" propagation bands like 20m for daylight paths and 40m for darkness paths.

JT9 was designed for HF and uses about 1/10 of the bandwidth of JT65A along with even better sensitivity. Unfortunately many users use ancient software with no JT9 support or are working through JT65 goals like WAS mode specific endorsements so JT9 does not get the attention it deserves. Although JT9 works for many on 6m, the tighter frequency tolerance required is a limitation for many with older rigs.

Both FT8 and JT65A have two pass decoders that can dig out multiple overlapping signals (similar techniques could be developed for JT9 but the need has not been seen yet).

FT8 has the AP decoder which gets a couple of dB extra sensitivity for critical decodes and also helps with truncated or interrupted messages in some cases.

WSPR is a pseudo beacon mode that uses a short message and two minute T/R period that has greater sensitivity than even JT9 despite the signal being only 6Hz wide. WSPR like JT65A and FT8 uses a two pass decoder capable of decoding overlapping signals.

There is also MSK144, QRA64, JT4, the fast versions of JT9, ISCAT, FreqCal and Echo mode. Each with a specific purpose and maybe for other opportunities they were not initially designed for.

For myself, I have yet to download the latest WSJT-X release, as I presently have no need, nor see the need to use FT8. To utilize the new release, I think I'll need to delete my older (pre-FT8) version, in order to avoid file confliction problems. My older version works very well for what I do need, and that is JT9. There are a few features on the software that I also find handy, which have been removed in the newer versions ... I think.
I can however, visualize losing out on some great DX opportunities on 6m during the summer, if the huge exodus from the CW DX mode to the FT8 mode continues to escalate. I really hate the idea of this happening but if that's what it takes, I'll install the FT8 version on my small contest-logging laptop which means building a new interface to run the 756PROIII on FT8.

Of course there is always the possibility that the trend will reverse as many eventually find that FT8 contacts are not all that interesting. The inability to exchange anything other than minimal required QSO information is the price paid for that extra sensitivity ... fine for that once in awhile new one in the log but not very satisfying for everyday communications.

The 'reversing trend' was also addressed in a recent posting to the WSJT Yahoo Group:

In my opinion it is nice to see a steady return to JT65 & JT9.
An all round better mode.
Still a bit short on the DX stations but I am sure they will follow soon.

Pretty much what a lot of us said would happen: an initial surge to FT8 and then things would settle down. Just another tool in the toolbox that does not have to be “better” or “worse” than anything else that has a few advantages over some modes in some areas (Es, for example) and disadvantages over others. None of these modes has to be classified as “good,” “bad,” “better,” “worse,” etc just like I don’t consider a screwdriver “better” overall than a hammer but each tool does a different thing. I suppose it’s human nature to attempt to classify things that way.

I have also seen some confusion when some are describing WSPR 'QSOs'. This is disturbing since there can never be a two-way exchange of information, all via radio (a QSO) using the one-way WSPR beacon-mode. Some may be confusing 'WSPR QSO's' for the actual Weak-Signal two-way 'WSPR QSO'  modes such as JT65, JT9, FT8 etc. 

Since WSPR relies on an internet back-channel exchange of information (to see where you've been heard), there is no actual on-air exchange of the data needed to claim a legitimate contact. To make such a claim would be no different than two stations, each running a beacon and calling each other up on the telephone to say that they can hear each other and calling it a two-way 'QSO'!

I have been using, and will continue to use JT9 on the new 630m band where signal levels are often too marginal for CW work but easily handled with this digital QSO mode ... otherwise I'll keep pounding brass whenever I can!

Sunday, 29 October 2017

160m FT8 - The End Of An Era?

courtesy: https://pskreporter.info/pskmap.html
If you follow any of the numerous ham radio-related discussion groups then you know that every once in awhile a thread pops up that triggers some extended and often heated chat.

One such thread on the Topband reflector, is now finally starting to gasp its final breath but not before running through several dozens of well-thought replies and opinions. I can easily imagine a similar thread, had the Internet been around, when SSB quickly began taking over the phone bands!

The thread began when veteran 160m DXer Steve, (VK6VZ) posted an observation that also hit home with me ... the seemingly overnight disappearance of a huge percentage of CW / SSB activity on the HF bands.

Steve's comments are directed towards 160m, where weak signal work has always been an enjoyable but challenging activity but I have noticed the same effect on my other favorite band, 50MHz. With the sudden popularity of the new FT8 weak-signal fast-mode, the bands have changed.

As I and others have often stated about Topband DXing, 6m weak-signal DX as well as EME, "if it were easy, it wouldn't be fun" ... perhaps that is what has now happened. Both Steve and myself see many of the things we have cherished and enjoyed about ham radio for so many years now harder to find and wonder ... is it the end of an era or not?

G'day

As a committed (yeah, that’s probably the right word - complete with white
jacket that laces up at the back) topbander since 1970, I’ve never been so
intrigued and disturbed by anything on the band as the emergence of the
Franke-Taylor FT-8 digital mode.

For me, radio has always been all about what I audibly hear. I love all the
sounds that radio signals make - and even miss the comforting sound of Loran that I grew up with around 1930kHz as a teenager in south-east England. Yeah, I am one sick puppy.

With the emergence of high resolution bandscopes through SDR technology over the last decade, I embraced that as it meant that I could find what DX stations I wanted to hear and contact quicker and more easily (and, in particular, before those stations who didn’t have the same technology).

It was really exciting and enhanced the sensual experience of radio by being
able to see what I could hear (and no dinosaur me, I was an SDR fan boy!).

During this period, there has also been an extraordinary development in digital
radio modes, in particular by Joe Taylor K1JT.

As a topbander I could see that these modes in which you ‘saw’ signals through the medium of computer screen or window as being a remarkable technical achievement, but had relatively little to do what I and the vast majority of active radio amateurs practiced as radio on 160m, as it had nothing to do with the audible.

The good thing was that I could see that good old CW and Silly Slop Bucket (you can see where my prejudices lie) that I like to use were still the modes of choice for weak signal DX topband radio contact as these fancy digital modes were either very slow or, if they weren’t, were not good at dealing with signals that faded up and down or were covered in varying amounts of noise. 
 

While some amateurs seemed to have lost the pleasure of actually hearing
signals in favour of viewing them on their computer screens, I felt secure that
these digital modes were just a minor annoyance and any serious DXer or
DXpedition was never going to seriously going to use them, particularly on my
first and all-time love topband, for other than experimentation.

Then, out of the blue, along comes FT-8. Joe and Steve Franke K9AN have quietly created the holy grail of digital operation with a mode that can have QSOs almost as fast as CW and SSB and over the last eight weeks 160m DXing has changed, perhaps for ever.

Where once there were a few weak CW and SSB signals (I am in VK6, which is a looong way from anywhere with a population so we only ever hear a few), I can see that the busiest part of the band is 1840 kHz – FT-8 central.  On some nights I can see FT-8 signals on the band but no CW or SSB.

There are countries I’ve dreamed for 20 years of hearing on 160m SSB/CW (for example, KG4) regularly appearing on DX clusters and I can see the heap of FT-8 activity on my band scope.

Frustration sets in and I even downloaded the FT-8 software but, when it comes down to it,  I just can’t use it. My heart isn’t in it.

My computer will be talking to someone else’s computer and there will be no
sense of either a particular person’s way of sending CW or the tone of their
voice (even the way some my SSB mates overdrive their transceivers is actually creating nostalgia in me). The human in radio has somehow been lost.

I think back to my best-ever 160m SSB contact with Pedro NP4A and I can still
hear the sound of his voice, his accent, when he came up out of the noise and
to my amazement answered me on my second call, with real excitement in his
voice. Pure radio magic!

So I am sitting here, feeling depressed and wondering if overnight I have
become a dinosaur and this is the beginning of the end of topband radio as I’ve
always enjoyed it.

Now, over to you other topbanders, especially those who have dabbled with FT-8 and live in more populous areas. Has the world really turned upside down and what do you think the future holds?

Vy 73

Steve, VK6VZ/G3ZZD



Here are just a few of some of the comments elicited by Steve's post:

... we are not forced to use the new modes. On the other hand, these new modes enable a whole new layer of operators. A new target rich environment for more opportunities to work new DX. The RF still has to go from A to B to be decoded 

I think the game changing aspect of FT8 is that many folks who would normally be available to work on CW or SSB  will now be on FT8.   The amount of activity on the FT8 frequency of any band is phenomenal.

... he was sending (me) a text message that he was sending me RRR and I needed to be sending him 73! Who needs a radio?

I turned off the radio and uninstalled WSJT-X.

Pure and simple —- No skill, no thrill.

I hear a lot of moaning that there is not any cw ....... well quit moaning and call CQ for a while ... do it often, not just listen .

Stu W1BB had the attitude of do whatever you have to to make the DX contacts. There is no doubt in my mind that he would be using JT9, FT8, spark or whatever it took to make new country contacts.

FT8 is already falling victim of its own success. In my case, the number of incomplete QSOs is increasing, due to QRM caused by 'over population' in the FT8 segment.

There was a time when SSB was considered evil.

If using a digital mode keeps someone involved in ham radio or generates new interest, then I'm all for it.

On the other hand, these new modes enable a whole new layer of operators. A new target rich environment for more opportunities to work new DX. The RF still has to go from A to B to be decoded.

A similar situation regarding digital modes took place on 50 MHz this summer. In the case of 6 meters, JT65 and FT8 are now the predominant modes for DX work on 6 meters. During terrestrial sporadic-E openings, there are very few DX stations now operating CW or SSB on 6.  Meteor scatter is the realm of MSK144.  If you want to work DX on 6 meters now - digital is where it is at.

Like FT8 or dislike it, it's really not the end of Ham Radio.

Technology is constantly changing. Get on the air.  Do your thing. Have fun.  When it ceases to be fun for me, then I know I'll move onto something else.

I've been licensed for over 60 years, and have been a thankful participant in ham radio's golden years, but if continuing on means having to make qso's that I don't hear and that I can't understand without a computer, then it's of no further interest.

I almost bought the new transceiver I've been wanting this year .... until I saw the reflector post about the gentleman who "worked 20 new ones this season, and I couldn't hear any of them!" The new purchase is now on hold, until I see how this plays out. If there is a rapid change to digital only DXing on 160, I'm going to be happy I saved my money for one of my more interesting hobbies.

The problem is not the type of mode but the Internet. We're spending too much time ragchewing on these groups instead of tickling the ether.

However, the trouble with the computer-based Digital modes is that there is no SKILL involved in having a contact - it's your Computer having a contact!
 

You still need to set up a radio, antenna, and, of course, the computer and software to do the digital modes. Making QSOs after all of that is not a given. Different skills than CW or SSB I'll grant you but skills none the less.

Put me in the group who of those who arrived kicking, screaming and being drug from Tubes to Solid state. From AM to SSB. From Analog to Digital. It is called advancements in technology. I still dislike cellphones. But I use them. And also all other forms of Ham Radio. 


You guys should have been around for the AM versus SSB discussions/wars without the use of the instant communication internet.

VERY SORRY, BUT if 50 mc and also 1.8 mc is going to be the same this and coming 2018 season,  I stop my ham-radio and will do something else. I give it to end of 2018 to see if any changes will come.

Well said. . .I totally agree.

I’m sure there will be people who say FT8 is just “progress.”  But some psychologists divide people according to whether their preferred mode of experience is auditory, visual or kinesthetic (touch).  I think most of us who are addicted to radio are primarily auditory – on one level, that’s why we’re in this hobby.  So, no surprise that we find radio without the auditory component to be unfulfilling.

... let's all maintain our ham licenses and continue using our favorites modes.

... don't give up. There is still plenty of magic in ham radio.

I'm not knocking the guys using the digital modes. It's obviously a new and interesting technology and they are having fun, which is the reason we do this, right? I just have ZERO interest in it all and still get my fun actually hearing and working another station.

When it comes to actually making a QSOs, I really don't know what you get out of the process where two computers communicate with each other using signals that are not audible.

The new digital mode is an evolution of doing nothing. Skype would be more fun ... digital mode is boring and soon the FT8 user will feel that way too.

Call CQ 5 times and then turn your computer on, every day, if all of us do it once a day, the band will be fun again.

JT modes were originally designed for VHF. No reason to use them on HF and especially on Top Band.

I guess I don’t understand what makes the new Digital modes any different from old RTTY. There will always be a place for CW and voice modes in ham radio for those that want to practice those ... and remember one of the major facets of ham radio is to “advance the state of the radio art” which surely describes the new digital modes.

People should be excited that there are now so many signals on 160!

It is allowing people who have smaller stations the opportunity to get on and use their radios and a computer to make contacts they never would have been able to make. This is great for ham radio!


Steve's final comments summed-up his thoughts:

G’day

Thanks very much to all those who contributed to the thread following my ‘FT8 - the end of 160m old school DXing?’ post. Here is a summary of what appeared in my ‘In Box’.

First, special thanks to CJ Johnson WT2P for bravely giving the ‘new school’ perspective and actually taking radio, in FT-8 form, into his workplace . As CJ says, FT-8 is just another natural progression of the hobby, which actually appeals to the ‘20-somethings’ we need to join us (and who just happened to be brought up with lots of screens rather than cardboard loudspeakers and bakelite headphones). Vive la difference!

In regard to the emails received via the reflector  or privately, there were three things that came through very loud and clear (actually deafening).

1. There are lots of long-time, old-school topbanders (and 6m users) like me who enjoy chasing weak signal DX on CW and SSB and are now worried about the future of this activity because of the current high usage rates of FT-8 on those bands. Always better when you aren’t alone!
---------------------------------------
2. We can band together and do something about this - the solution for us old school ops who want to keep CW and SSB vital on the two magic bands is to go back to first principles – lots of CQing, tuning the band regularly and answering CQs – rather than just watching our bandscopes and DX clusters.  We all know that only activity breeds more activity. Duuh! (I feel really stupid now).

As JC N4IS said:

”With the computer our habits are different. Nowadays we turn [to] the PC first and if we see a spot or a RBN entry we try to call.... We should [go] back to call[ing] CQ for the fun to work someone. Call CQ five times and then turn your computer on, every day. If all of us do it once a day, the band will be fun again.”

We’ve all got CW memory and/or voice keyers – if we don’t want to actually CQ manually, we can use them for lots of daily CQing and make sure we answer anyone who calls us.

We also need to answer those who we hear calling CQ to keep the band alive, even if we worked them the day before – as we did in the older, less hurried, more polite days of yore.    
--------------------------------------------
3. The ARRL could be encouraged to change the DXCC program and add a new mode-specific category for the evolving ‘new wave’ (i.e. WSJT) family of digital modes, where contacts can be made with stations that are basically inaudible (i.e. as Hans SM6CVX suggested, where the signal levels are –1dB or more below the noise).

To keep the peace with existing DXCC holders, one potential solution is those traditional modes which generally need audibility – typically CW, SSB, RTTY  and PSK-31 – would count for the long-standing Mixed mode, but the inaudible ‘new wave’ digi modes would not.

However, the growing and evolving family of inaudible ‘new wave’ digital modes could have a whole, bright, shiny new DXCC category to themselves, for which all the current WSJT modes and their evolving, successor modes would count. 

This ‘new wave’ digital award could have a new cool, 21st century-looking certificate (are holograms 21st century?) , would give new wave digital operators the chance to be among the first to get this award and would also give the ARRL DXCC program the chance to potentially get some extra revenue in issuing these awards.  Of course, all the contacts would be submitted electronically. ;-)

Another different but related idea came from Mark K3MSB  - why not ask the ARRL to consider awarding band-specific DXCC awards with mode endorsements (i.e. 160M DXCC-CW,  160M DXCC-FT8,  40M-Digital, 17M-SSB etc).

If we want to get this kind of change to the ARRL’s DXCC program, then as Mark suggests we need to make our voices heard. This could be simply done by creating an electronic petition to the ARRL signed by as many current members of the DXCC program as possible, clearly spelling out what sort of change the petitioners think is needed. There is a great website which can be used for this purpose -   see https://www.change.org/start-a-petition – and it should be easy to publicise a petition of this kind, using reflectors.

For many years I was involved in administrating amateur soccer and have experience of using electronic petitions as a means of showing an administrative body the level of support for specific changes to the way the game is run.  In my experience, electronic petitions are a viable way to get rules changed these days. Some people hate them, but BIG petitions actually do get results.

Hope the above summary of ideas was of interest. Please excuse me now and I’ll get along to the low end of 160m, start doing something practical like CQing and stop worrying about the demise of old school radio (which I’ve probably greatly exaggerated).

Vy 73

Steve, VK6VZ/G3ZZD


All-in-all, some food for thought! Personally I exploit the weak-signal properties of the WSJT JT9 mode on 630m, but only when conditions are too poor for CW. I dearly miss the drop-off of CW DX activity on Topband and on the magicband. For now anyway, I will continue to avoid the use of FT8 on the HF and 6m bands, keep flogging CW, and hope that things are not as dire as some have suggested. Times are indeed interesting and changing ... and as always, eventually time will tell.