Showing posts with label crossband. Show all posts
Showing posts with label crossband. Show all posts

Wednesday, 8 March 2017

CQ Crossband and ... 3 Down, 97 To Go!



Several QSL cards have arrived after the last 630m 'crossband' event ... including one from ZF1EJ in the Cayman Islands confirming our 630m QSO in January.



 

The contact was made on JT-9, the 'WSPR QSO' mode, and represents DXCC country #3 for me on 630m ... only 97 more to go! ZF1EJ was running just 32 watts output when we had our 630m JT-9 contact but has since cranked his output to around 60 watts. Eden is beaconing most nights on WSPR and puts out a well-heard signal. He is very interested in two-way JT-9 work with other VE stations as well as any Europeans and down-under stations.

From what I can tell, it looks like JT-9 (similar to JT-65 but a much narrower bandwidth of 15.6Hz) is establishing itself as the go-to mode for weak signal two-way work on 630m. It has a couple of things going for it that makes it very attractive for this band ... it can dig way down into the noise (-25 db approximately) and communicate with very weak signals and, it does not require amateurs to know CW, a growing trend with newer operators and a real hindrance to two-way CW work. I suspect, and hope, that there will be much more CW activity on 630m once amateurs in the U.S.A. get the band as the amount of information that can be exchanged per transmission on JT-9 is limited ... time will tell.

In the meantime, here is a request for more two-way 'crossband' CW activity with amateurs in all parts of North America. I have recently totally revised the 'CQ Crossband' page on my website, 'The VE7SL Radio Notebook'. Please note that my web address for well over a decade, is no longer valid and everything has been moved to this new location. If you have the old one bookmarked or are linking to it from your own site, please be aware that previous links will now be dead.

The crossband concept allows amateurs not yet on 630m to still participate in this exciting part of the spectrum ... and to check out their ability to hear anything on MF. If we were to make a schedule for a crossband contact, I would be transmitting on 630m at full ERP while you would be answering on one of the HF bands ... usually 160, 80 or 40m.

I am very much interested in setting up crossband schedules for 630m at any time and can very likely enlist several other VE7s to be there as well so that you can work more than one station. I have full details on my updated 'CQ Crossband' web page but please do not hesitate to give crossband a try!


Roger, VE7VV in Victoria, B.C., recently became the 8th VE7 to muster RF on 630m, with power limited to 1 watt at present. Our contact was on CW while he worked stations in Vancouver on JT-9. Hopefully he will continue to build his station and become more active on the band.

Crossband continues to be a subject of much interest both here and with many U.S. stations that are waiting for the band. Recent cards from Colorado and California, shown below, are the latest to arrive.




K6YK gave me an RST of '519' but explained the reason for this was because he was receiving on his 3 el HF tri-bander which provided the best signal-to-noise value! This is often the case on 630m so try what you have. Many times a 'non-resonant' antenna will pick up less noise and yield the best signal readability.

If you would like to try a crossband QSO, please contact me at VE7SL (at) shaw.ca ... I'll keep the rig warmed up!

Wednesday, 8 February 2017

630m Midwinter Activity Summary





Last weekend's 630m Midwinter Activity Event appeared to bring out a lot of new listeners to the band as well as to the crossband activity.


John, KB5NJD, reports in his daily 630m summary, that numbers were higher than previous events, indicating much new interest in what might eventually become the new 'Topband'. John has a very detailed timeline of events for the night including extensive coverage of experimental station reports.

Unfortunately, as is often the case, geomagnetic conditions were still suffering the effects of a week long coronal hole stream bombardment, particularly geo-effective in VE7 and the PNW, which always seems to tickle the southern elongated tail of the auroral oval further north. Stations to the south reported better, but quickly shifting propagation paths, while VE3OT in Ontario seemed to have no difficulty in working his numerous QSX callers.

Murphy's Law in action. The yellow disturbance coincides exactly with the event!

The path from VE7 was predominantly north-south, with the east-west path almost non-existent ... often the case when K indices are higher than 0 or 1. Several of the crossband stations reported heavy QRM on their HF QSX frequencies, which was expected. There were a number of CW events, including the NA CW and the FOC parties, as well as an international RTTY contest in full swing. I found my QSX of 3526 kHz to be busy but manageable as stations did not seem to stay too long before moving to another frequency. My 40m QSX of 7115 kHz was clear all night but most callers chose to use 80m.

Eventually, if and when the U.S. gets the 630m band, crossband work will no longer be needed. With all of the loud VE7 and Washington state activity on 630m, it will be an interesting challenge to work within the band itself ... but what great fun it will eventually be to hear 630m sounding like 160m during a winter CW contest!

Here is a rundown on the Canadian crossband action:

Joe, VO1NA out on the rock, used 80m as his talkback frequency while running 50W to a large inverted-L.

  • PE5T              
  • VO1DI             
  • PAØO             
  • K1PX          

Additional 'heard reports' were received from LA6LU, VE2PEP, DL4HG and PAØRDT.

Moving further west, Mitch, VE3OT, had a busy night with his 250 watts and 340' rectangular loop pointing east-west:

  • VA3DN---ON
  • W3TS---PA
  • K1PX---CT
  • W8PI---MI
  • WB3AVN---MD
  • K3PA---KS
  • K3CCR---MD
  • AC9S---IN
  • WA8ZZ---MI
  • W3WH---PA
  • WA9ETW---WI
  • AB4KJ---IL
  • NS8S---MI
  • N9SE---IN
  • WA3TTS---PA
  • W2JEK---NJ
  • VE3GRO---ON
  • WØBV---CO
  • K2PI---VA
  • K1HTV---VA
  • N2MS---NJ
  • KB5NJD---TX
  • NO3M---PA
  • NA5DX---MS
  • K9RT---IN
  • WØJW---IA

Mitch adds:

"Good conditions here - and similar frequency choice as last year….all but 2 QSOs on 3.5Mhz. Lost 3 possible QSOs - just too weak - at the noise level, but they obviously were copying me on 477….interesting.
Thinking about band condx - I think I should have stayed another hour or so and see i the band finally opened further West than Colorado.
It was interesting to see the East slowly fade away and the Mid-West and Western stations started calling. A good exercise - and lots of compliments and thanks from the U.S. operators."

Mitch is working on a special QSL for those stations that worked him.

Out on the west coast, things were busy as well but other than a couple of brief periods, there seemed to be a Faraday shield not too far east of the Rockies ... mostly a north-south affair.

John, VE7BDQ, reports:

  • W7FI---WA
  • K7WA---WA
  • K6YK---CA
  • VE6XH---AB
  • VA7JX---BC
  • VE7BGJ---BC
  • K7CW---WA
  • AH6EX/W7---WA
  • CF7MM---BC
  • K6IR---WA
  • K7SS---WA
  • W9PL---WA
  • CF7MM---BC
  • CG7CNF---BC
  • VE7SL---BC

From Toby, VE7CNF:

  • AH6EZ/W7---WA
  • K7CW---WA
  • CF7MM---BC
  • K7SS---WA
  • W9PL---WA
  • N7BYD---MT
  • VE7BDQ---BC
  • W7FI---WA
  • W6TOD---CA
  • VE7KW---BC
  • VE6XH---AB
  • VE7BGJ---BC
  • VA7JX---BC
  • K6YK---CA
  • KB5NJD---TX

From Mark, VA7MM:

  • W7FI---WA
  • K7CW---WA
  • W6RKC---CA
  • W6TOD---CA
  • AH6EZ/W7---WA
  • VE6XH---AB
  • VE7KW---BC
  • K6YK---CA
  • VE7BGJ---BC
  • VA7JX---BC
  • K7SS---WA
  • CG7CNF---BC
  • VE7BDQ---BC
Both Toby and Mark were in the middle of a nasty ice storm, slowly watching their output power drop as their antennas gradually accumulated more and more ice. Thankfully neither antenna came down!

630m top-loaded 'T' (and multiband HF dipole) at VA7MM...100' vertical x 50' tophat.
At least there was no ice storm in progress here on Mayne at VE7SL:
  •  CF7MM---BC
  • W6TOD---CA
  • K7CW---WA
  • W7FI---WA
  • K6YK---CA
  • K7WA---WA
  • WØBV---CO
  • AH6ZE/W7---WA
  • VE7KW---BC
  • VE6XH---AB
  • VA7JX---BC
  • VE7BGJ---BC
  • NO3M---PA
  • KB5NJD---TX
  • K7SS---WA
  • N7BYD---MT
  • CG7CNF---BC
  • VE7BDQ---BC
Besides being just a lot of fun, these events always provide some interesting 'takeaways'.

It's clear that there is a lot of interest in this band and it continues to grow ... reporting levels have never been higher. One crossbander in Washington state indicated that he has a station already to go, once the U.S. gets the band.

Activities such as this continue to demonstrate that stations running something less than the maximum allowable 5 watts eirp can produce impressive signal levels, allowing solid aural contacts over considerable distances via skywave ... even under the marginal conditions just experienced.

Considering the amount of RF being generated nightly for several years by high erp experimental stations as well as during numerous frenzied 630m activity nights, there should be little doubt that interference to hydro switching systems is a non-issue. Sadly, this argument by power authority lobbyists still appears to be the main obstacle for the FCC's foot-dragging of 630m implementation in the U.S.A.

It was great to see participation and interest from VE6 land! Hopefully more Canadian amateurs will take up the challenges offered by 630m ... both in operating and in building a station. You need not have anything more than a suburban backyard to enjoy transcontinental work and like so many activities ... the more, the merrier!

Saturday, 28 January 2017

2nd Midwinter 630m Activity Event




One week from tonight, on Saturday Feb 4th, the 2nd Midwinter 630m Activity Event will take place.




The highlight of this event will be the opportunity for amateurs, throughout North America, to attempt crossband CW contacts with Canadian amateurs operating on 630m.

Canadian stations will call CQ on announced frequencies within the 630m band and listen on individual HF (QSX) frequencies for callers.

Due to the RTTY and Sprint activities on the same night, some of the QSX frequencies have been shifted from those that might normally have been used in the past.

There appears to be a lot of growing interest in 630m among American operators. It is hoped that the USA will soon have access to 630m as a ham band.

There will also be a large turnout of U.S. experimental activity, either in beacon mode or in two-way QSO mode with other experimental service stations.

In past events,  Transcontinental crossband contacts have been completed. It is hoped that operating events such as this can serve to demonstrate the interesting propagation possibilities of this unique part of the spectrum and generate more new interest in the 630m band.

To read more about this event, please see the ARRL news announcement here.

This time out, there will be six Canadian stations, from Newfoundland to the west coast, hoping to work as many of you as possible!


Station: CF7MM (Mark) CN89 Coquitlam, British Columbia
Time: February 5, 0200-0700 UTC
Transmit frequency: 475.0 kHz
Receive (QSX) frequency: 1,801 kHz, 3,501 kHz, 3,528, and 7,028 kHz

Station: VE7BDQ (John) CN89 Delta, British Columbia
Time: February 5, 0300-0700 UTC
Transmit frequency: 474.0 kHz
Receive (QSX) frequency: 1,833 kHz, 3,533 kHz

Station: CG7CNF (Toby) CN89 Burnaby, British Columbia
Time: February 5, 0200-0800 UTC
Transmit frequency: 476.5 kHz
Receive (QSX) frequency: 1,827 kHz, 3,527 kHz, 7,027 kHz

Station: VE7SL (Steve) CN88 Mayne Island, British Columbia
Time: February 5, 0200-0700 UTC
Transmit frequency: 473.0 kHz
Receive (QSX) frequency: 3,526 kHz, 7,115 kHz

Station: VO1NA (Joe) GN37 Torbay, Newfoundland
Time: February 4, 2130 UTC, until February 5, 0130 UTC
After 0130 UTC, 5WPM CW beacon until 1000 UTC
Transmit frequency: 477.7 kHz
Receive (QSX) frequency: 3,525.5 kHz

Station: VE3OT (Mitch) EN92 London, Ontario
Time: February 5, 0000-0500 UTC
Transmit frequency: 477.0 kHz
Receive (QSX) frequency: 3,610 kHz, 7,105 kHz

See you next Saturday we hope!

VA7MM 630m Top Hat Under Construction

Friday, 13 January 2017

630m Thriving




Fritz Raab, the ARRL's 600-Meter Experimental Group coordinator, recently released his quarterly report, with highlights being reported in the ARRL News.



In it, Raab tell us:

"Band activity has been very high, and there are often more WSPR stations — more than 110 stations — on 472 kHz than on 80 or 160 meters!"

"In a sense, 630 meters has become a mainstream ham band, in spite of not being authorized in the US".

"The paths to VK and JA have remained good. This was not the case last year, so perhaps it is an effect of the coming solar minimum. Many reports have been received for WSPR transmissions with relatively moderate power. There have been a number of polar and high-latitude openings to LA2XPA from North America. Many long-time operators say that they have never seen anything like that. There have also been a number of openings from the US west coast deep into Europe."


The ARRL's full report can be read here.

Also touched upon was the upcoming "Midwinter 630m Operating Activity", the second such February event ... this year to be held February 4-5th.

Stay tuned here for further details. Highlighting the event will be another opportunity for U.S. and Canadian amateurs to attempt CW crossband contacts with six Canadian stations operating on specified frequencies in the 630m band. Canadians will listen for callers on specified frequencies within the 160, 80 and 40m bands. Previous events have had much success, with Transcontinental and Transpacific CW crossband contacts being completed by many stations.

A detailed schedule of frequencies and times will be published as the event draws closer but in the meantime, see if you can keep February 4th (Saturday night) open for some 630m crossband excitement!

Thursday, 29 December 2016

CQ - 630m Crossband Anyone?





A very beautiful QSL arrived in the mail last week, confirming my 630m crossband contact with Harry, WØLS, in Minnesota.



According to Harry's card, this was the first time he had ever listened on 630m and was very surprised to hear me, let alone complete the two-way contact.



Harry was transmitting on 80m CW while I was transmitting on 630m, on 473.00 kHz. It really does not take too much to be able to hear signals on 630m, especially if you are not overwhelmed with a high noise floor ... most low band wire antennas will hear pretty well down there, when pressed into service.

This week, the card from Jeffrey, KGØVL in Iowa arrived. This one also confirmed a 630m crossband contact. Both of these QSO's were made during the November's 630m activity night.


Jeffrey was transmitting on 160m while listening to my signal on 473.00 kHz with his 160m inverted-L.

It's not really necessary to wait for another activity night to have some fun, so ... if you would be interested in trying a crossband CW contact, I would be more than excited to give it a shot.

I can listen on 160, 80 or 40m for you, if you can listen on 630m for me! If we can arrange a sked, I could probably talk a few of the other local 630m VE7's into tagging-along so that you end up with a double or triple-header of VE7's in the logbook.

Please e-mail if you would like to try... ve7sl at shaw.ca

Sunday, 13 November 2016

630m Crossband Summary


As in previous events, last night's activity was both exciting and successful. From out west here however, things got off to a very slow start and it took some time for conditions to 'cooperate'.

My take on last night's odd conditions may or may not be correct but it seemed that the skip zone on both HF and on 630m was unusually 'long', right from sunset. I have noted similar conditions on the broadcast band, when conditions favor the trans-Atlantic skip regions. I suspect that the skip was towards the eastern regions of Canada where there is sparse activity or, more likely, somewhere further out in the Atlantic regions.

Long conditions like this make it almost impossible to hear closer in stations on HF, such as those up and down the coast or in nearby states, while shutting out most North American reception on 630m. There was also strong evidence that the bands had gone unusually long, when Steve, AA7U, a veteran LW / MW DXer in Arizona, reported early in the evening that he was hearing good signals from Morocco and Algeria on LW ... most unusual from out west!

Western 630m stations worked nothing out of the local region for several hours and the more 'usual' contacts with Oregon, Montana and California were absent altogether ... until around 0500Z when Eric, NO3M in Pennsylvania, replied to one of my 473 kHz CW CQ's on 80m. We quickly exchanged reports and as the long skip began to shorten, Eric went on to work my remaining three VE7 neighbours ... a first for him!

At 0600Z, Eric called me again to give me a 589 report, indicating how quickly the band had improved. With the shrinking skip-zone now moving west, stations in the midwest (WI, MN, IA and CA) were easily worked as the band shortened-up. It's a pity that more eastern stations didn't stay up later, as the band really did not fully cooperate until it was well past bedtime for most regions to the east.

Back east, both Joe, VO1NA on the 'rock' and Mitch, VE3OT in London, Ontario, had good nights, with Joe having a nice crossband CW contact with PE5T in the Netherlands who later reversed roles and worked Frank, VO1HP, who was transmitting on 80m but listening to PE5T on 630m CW! Hopefully this exchange will encourage more two-way trans-Atlantic in-band CW work between Eastern Canada and Europe as there are now numerous European countries with 630m band privileges.

Here is a brief logbook summary for the various Canadian crossbanders.

VO1NA:
VO1AKA, N1BUG, PE5T, VO1DI, VO1HP, W3LPL

VE7SL:
VE7BGJ, VE7BDQ, K7CW, VE7CNF, VA7DXX, VA7MM, AH6EZ/W7, VA7JX, W7GKF, VE7PS,  NO3M, VE7CEK, W0YSE, WA9ETW, KB5NJD, KB7N, K6GZ, W0LS, KG0VL

VA7MM:
KB7N, W7AMD, K7CW, KG0VL, VE7BDQ, VA7JX, VA7DXX, AH6EZ/W7, W7GKF, VE7PS, NO3M, VE7CNF, K6GZ, W0YSE

VE7CNF:
AH6EZ/W7, K7CW, KB7N, KG0VL, W0YSE, K6GZ, KR5D, NO3M, VA7JX, VE7BGJ, VE7PS, W7GKF, VA7MM, VE7BDQ

VE3OT:
N1BUG (ME), K1RGO (CT),  NF4C (NC), W3LPL (MD), KC8BW (MI), W8ICN (MI), K4SAV (AL), K2OS (NY), N4NTO (NC), WA9ETW (WI), W2JEK  (NJ), W1JA (MA), N9UA (WI), VA3SC (ON), VE3IQB (ON), WZ9B (IL), WD8DSB (IN), NO3M (PA), NK8X (MI), W0JW (IA), K1QQ (NH)
 
VE7BDQ:
VE7KW, VE7BGJ, AH6EX/W7, W7GKF, K7CW, VA7MM, VA7JX, NO3M, VE7PS, KB7N,VE7CNF, K6GZ, VE7SL


For a summary of N1BUG's activity from Maine, along with some recordings, visit Paul's posting here.

I would like to express my thanks to all of those that participated, including the U.S. experimental stations,  either by sending reports or by being on the air to provide two-way activity ... without your interest and taking the time to prepare your station's capability, events such as this would never get off the ground!

Hopefully by this time next year, a 630m ham band will be a reality in the U.S.A. and that we will all be able to work each other directly on 630m! It is also hoped that this weekend's activity will encourage more Canadian amateurs to give 630m a closer look ... we are extremely lucky to have this small segment of the spectrum available to us and are quickly learning of its potential to support superb groundwave communications as well as offering exciting DX possibilities.

For an even more in-depth summary of this weekend's event, please visit KB5NJD's blog summary here.

For more help in building your own 630m station, see KB5NJD's 'Instructional Topics' pages as well as on my own 630m blogspots here. Together, these two sources will provide you with weeks of thought-provoking bedtime reading!

Thanks again, for your participation.

Friday, 11 November 2016

Saturday's 630m Crossband Night - Reminder


This is a reminder of tomorrow's '630m activity night'. Highlights of the evening will see six different Canadian stations seeking contacts with other amateurs in North America via the 'crossband mode' as they call CQ on 630m CW but listen for replies on their announced (QSX) HF frequency. As well, there will be an increased level of on-air activity from many of the U.S. experimental stations, as they beacon or work each other on various modes including CW and JT9, the WSPR QSO-mode. The experimental stations are also seeking your reception reports.

More information may be found here regarding the activity night, including a detailed list of participating Canadians along with their respective transmitting and QSX HF listening frequencies.

As is often the case, old 'Sol is threatening to throw some junk our way over the next day or two, right on time for our event but please don't let that stop you from participating as often this can actually enhance propagation, especially on the north-south path.

We hope to see many of you tomorrow night!

Friday, 28 October 2016

November's 630m Activity / CW Crossband Night!





Once again the 630m band will become a cacophony of CW and other sounds on Saturday night, November 12th! The actual motivation for the weekend event is a celebration of the November, 1906, Berlin Treaty ... making 500 kHz the International Distress Frequency for the next eighty years. It's also a great excuse for a lot of 630m diehards to get on the air and celebrate the band.






Three different groups will participate:

    U.S. Experimental Operators
    Canadian Amateurs
    Maritime Radio Historical Society

U.S. Part-5 Experimental Operators including WD2XSH stations and others will operate in the 472 – 479 kHz band. They will use CW transmissions for QSOs and beacons with special messages. There may also be some operation on 500 kHz itself.

Canadian Amateurs will be concentrating their efforts on providing two-way cross-band CW QSO's with other amateurs in the U.S.A. and Canada. They will be transmitting on specified frequencies (see below) and listening for replies to their 'CQ' on specified QSX frequencies within the 160, 80 and 40m CW bands.

The Maritime Radio Historical Society will activate its KSM/KPH transmitter at Bolinas, CA for a mini “Night of Nights” with special messages and bulletins.

Listeners are encouraged to send their reception reports to individual stations or via the LF/MF ON4KST chat page which should be very active during the event. Most experimental calls can be found via QRZ.com listings.

All amateurs are encouraged to participate in the cross-band activity by being able to listen on 630m but being able to answer on one of the specified HF bands.

So far this fall, propagation on the 630m band has been excellent and hopefully will continue well into November. Previous cross-band events have seen contacts made from coast-to-coast as well as west to Hawaii.

VE3OT QSL and coverage from previous crossband event


Confirmed Canadian stations include:

Station:  VA7MM (Mark) CN89 Coquitlam, B.C.
Time: 0400Z – 0800Z (Saturday night Nov 13 Z)
TX Frequency: 475.0 kHz
RX (QSX) Frequency: 1801 kHz / 3574 kHz / 7062 kHz

Station: VE7BDQ (John) CN89 Delta, B.C. November 2016
Time: 0300Z – 0700Z (Saturday night Nov 13 Z)
TX Frequency: 474.0 kHz
RX (QSX) Frequency: 3555 kHz

Station: VE7CNF (Toby) CN89 Burnaby, B.C.
Time: 0300Z – 0800Z (Saturday night Nov 13 Z)
TX Frequency: 476.5 kHz
RX (QSX) Frequency: 1836 kHz / 3558 kHz / 7031 kHz

Station: VE7SL (Steve) CN88 Mayne Island, B.C.
Time: 0200Z – 0700Z (Saturday night Nov 13 Z)
TX Frequency: 473.0 kHz
RX (QSX) Frequency: 3566 / 7066 kHz

Station: VO1NA (Joe) GN37 Torbay, Newfoundland
Time: 2130Z – 0130Z (Saturday night Nov 12 Z – Sunday Nov 13 Z)
TX Frequency: 477.7 kHz
RX (QSX) Frequency: 3562 kHz

Station: VE3OT (Mitch) EN92 London, ON.
Time: 0000Z – 0400Z (Saturday night Nov 13 Z)
TX Frequency: 477.0 kHz
RX (QSX) Frequency: 3563 kHz / 7058 kHz

Several US Experimental stations also will be in operation throughout the band, in two-way QSO mode with each other, using CW or JT9. Some stations will also use WSPR and QRSS CW beacon modes.

The success of this event largely depends upon the participation of as many amateurs as possible.

Hopefully you will be able to participate in the two-way cross-band activity by being able to listen on 630m and then able to switch over to HF to transmit. This could involve the use of a separate receiver / transmitter or can often be easily implemented via your transceiver's 'A/B' switch.

No antenna for receiving on 630m? Don't let that stop you from taking part in the fun. Surprisingly good results can often be had by using a low band wire antenna such as a dipole or inverted-L for listening on 630m ... the antenna does not necessarily need to be resonant. In fact, often times, a non-resonant receiving antenna can provide a better overall S/N ratio than one which is resonant, as these often gather more noise along with signals.

You may want to experiment before hand by listening to many of the numerous U.S. experimental stations operating nightly, mostly in the WSPR mode, between 475.6 and 475.8kHz. Most operators provide a CW identifier following their WSPR transmission but a better way to decode these signals is by installing the latest WSPR software, WSJT-X (freeware), at K1JT's website here. The software works extremely well and is easy to install and get working. If you set the software to 'upload spots', you can share your nightly catches with dozens of other listeners throughout the continent on the WSPRnet website.

courtesy: KB5NJD's 630m Daily Blog
I'll be sending out a few more reminders as the 630m activity night gets closer but please mark your calendars and make a date to participate, by either sending in your 'heard' reports or by getting on-the-air and working some of the Canadian cross-banders.


If you have further questions, please contact myself or John Langridge, KB5NJD / WG2XIQ.

Monday, 8 February 2016

630m Midwinter Summary




Friday and Saturday evening's 'Midwinter 630m Activity' event was an interesting demonstration of the band's capability and, by most accounts, a real success.


At first-glance, the propagation gods appeared to favor Friday night but I'm not really so sure as both nights were quite different.

Friday night's extremely high winds and pounding rain played havoc with most of the west coast antenna systems, producing fluctuating SWR's and scopematch traces dancing crazily for most of the night. Geomagnetic conditions were playing tricks on both evenings as well, with the K-index varying between '1' and '4' ... but the sudden dip to '1' on Saturday night was immediately obvious out west. Stations that had struggled to hear any signs of the CQ-ing VE7's suddenly reported aural reception and several quick contacts were made before calling it a night at around 0700Z. Some of the lower ERP stations were never able to crack the Saturday night, generally high, K-curtain, making for a less interesting night.

courtesy: NOAA and http://www.solarham.net/planetk.htm

The highlight of the event was assuredly the activity from Canada's most recent arrival to the band, Mitch (VE3OT) in London, Ontario. A veteran 2200m operator, Mitch recently modified his system to add 630m capability and after a few setbacks, managed to provide a lot of excitement for the crossbanders back east. I'm sure that Mitch's participation has resulted in many eastern amateurs making plans for 630m in the months ahead.

Mitch managed twenty-five two-way crossband contacts, all along the eastern seaboard and as far south as Texas, with his well-heard 200W and 340' backyard loop ... proving once again that you don't need to live in the country with several acres to have a ton of fun on 630m!

VE3OT's Crossband Coverage courtesy: https://www.google.ca/maps
'Backyarders' in VE7 land also had fun, with VE7BDQ, VE7CNF and VA7MM working crossbanders across the PNW and down into California, Utah and Nevada. Although my own system can also fit into a backyard (with kindly help from the neighbours!), it doesn't quite qualify for such description as my antenna is mounted almost over the ocean, with an unobstructed seawater horizon looking towards the rest of North America and to the north.

An interesting observation, noticed during previous events and reconfirmed once again, is the ability of the smaller and lower antennas used by some of the city stations, to propagate much stronger signals into closer regions such as Washington, Oregon and northern California.

On more than one occasion, my signal was reported as 'unreadable' or 'just above the noise floor', while the other backyarders were reported with, sometimes, 'booming' signals. I can only surmise that these antennas offer more high-angled (NVIS-like) radiation compared with my high seaside inverted-L, which likely has a lower takeoff angle ... Saturday night's activity tended to back up this observation. When it comes down to it, I think that all amateur 630m antennas are basically NVIS radiators due to their small size and low height but some are just a tiny bit 'less NVIS' than others!

As conditions enjoyed a short spike late on Saturday evening, NO3M and WA3TTS, both in Pennsylvania, reported good reception of my CQ's and crossband QSO's were quickly completed with both stations, as well as with KB5NJD in Texas. During the short propagation lift, ABØCW, in Colorado, also called in for a quick exchange, indicating that my previously unheard signal had quickly built from nothing to a 549.

Another highlight of the night was a report from Paul, K7CW, from his quiet receiving location in Tahuya, Washington. Paul reports reception of both VE3OT and VO1NA, with the latter being a 'first' from the west coast!

Hi Steve,

Here is my report of things I took part in or observed tonight:

0204Z - Worked VE7SL 473/3566 kHz RST 559.


0209Z - Worked VE7CNF 476.5/3558 kHz Pretty fast QSB RST 529 to 559.


0214Z - 0409Z WG2XSV 476.1 Beacon RST 559. Announced QRT and QSY at 0409Z.


0219Z - Heard VO1NA 477.4 kHz Weak with QSB. I could get or or three characters now and then. Too weak to attempt a QSO. Signal faded to nothing after about 15 minutes.


0225Z - Heard VE3OT 477.0 kHz Weak but much better than VO1NA. Also with QSB fading to nothing. I called several times, but couldn't tell if he came back to me. Strong enough to make a hopeful try. Also disappeared after about 15 minutes.


0241Z - Came across WD2XSH/20 RST 599+ in QSO with WH2XGP RST 589. 474.5 kHz.


0300Z - WD2XSH/20 472.0 599+ now in beacon mode.


0400Z - VE7BDQ 474.0 kHz RST 539 showed up and called CQ twice. I responded on 3555 kHz, but he did not call me back. He then disappeared from the QRG. There was a strong birdie on 475 kHz, but I don't think VA7MM came on.


0409Z - WG2XSV 476.1 Beacon interrupted by announcement of QRT and QSY.


0434Z - Came across VE7BDQ 474.0 kHz again calling CQ. He worked VA7JX, but apparently couldn't hear me.

With that, I took one more look for VO1NA and stopped.

Another interesting night.

73, Paul K7CW


Thanks also to AI8Z in Colorado and W7OIL in Washington for submitting  reception reports!

THE LOGS

From Mitch, VE3OT, in London, ON:

Friday night:

NØFW (OH)
WA3TTS (PA)
KB5NJD (TX)
K4LY (SC)
K3OO (PA)
VE3MM (ON)
N4PY (NC)
WA9ETW (WI)
K9LA (IN)
NO3M (PA)
N2TK (NY)
KK8X (MI)
N2ZK (NY)
N8RR (WV)
VA3SC (ON)

Saturday night:

WD8DSB (IN)
K3UL ( PA)
WB2QMY (NJ)
AA1P (MA)
W2JEK (NJ)
WA3LAB (PA)
K3PA (KS)
NF4C (NC)
W1VD (CT)
WØJW (IA)

From Joe, VO1NA, in Torbay, NF:

N1CGP (ME)
VO1FOG 
VO1BQ
reception reports from around the province, almost all reporting
a positive reception. Also got reports from DF6NM and PAØRDT


From John, VE7BDQ, in Delta, BC. (a description of John's station as well as other VE7's, can all be viewed here):

KGØD/7 (WA)
KU7Z (UT)
VE7KW
WØYSE/7 (WA)
VE7BGJ
W6RKC (CA)
WB2AWQ (NV)
VE7CNF
VA7MM
VE7SL
VA7JX


From Toby, VE7CNF, in Burnaby, BC:

Friday night:

KU7Z (UT)
WØYSE/7 (WA)
VE7KW
VE7BGJ
KGØD/7 (WA)
W6RKC (CA)
VE7BDQ
VA7MM

Saturday night: 

K7CW (WA)
N7BYD (MT)
WØYSE/7 (WA)
VE7SL
VA7MM

As well, Toby was copied on QRSS3 mode in Illinois, late Saturday night.

From Mark, VA7MM, in Port Coquitlam, BC:

Friday night: 

VE7KW
KU7D (UT)
VE7BGJ
WØYSE/7 (WA)
W6RKC (CA)

Beacon copied: WD2XSH/2Ø 472 kHz

Report of my signal received from N6SKM


Saturday night:

VE7BDQ
VE7SL
VE7CNF

From myself, VE7SL, on Mayne Island, BC:

Friday night:

VE7KW
KU7Z (UT)
W6RKC (CA)
VE7BGJ
KB5NJD (TX)
NO3M (PA)
KGØD/7 (WA)
VA7MM
WØYSE/7 (WA)
WB2AWQ (NV)


Saturday night:

K7CW (WA)
VE7CNF
VA7CNF
VA7JX
K7SF (OR)
VE7BDQ
KB5NJD (TX)

N7BYD (MT)
WØYSE/7 (WA)
NO3M (PA)
ABØCW (CO)
WA3TTS (PA)
VA7MM


For an even more detailed description of the weekend event, see KB5NJD's 630m blogs here.

Thanks to all participants ... you have created another successful 630m operating event. Hopefully U.S. amateurs will have access to the band before next winter, allowing all of the two-way activity to take place within the band itself ... how different that will be! Otherwise, another crossband weekend will be in store for the fall of 2016!