This time it's a two-parter with a wider window -- the first hunting ground is 190.0 - 239.9kHz.
The second part is hunting for NDBs whose carrier frequencies are 'half-way' ex. 267.5, 333.5, 375.5 etc.
A '
challenge target' for listeners in North America is
BK - 224kHz in
Baker Lake, Nunavut. Listen for
BK's upper
sideband on
224.402kHz.
BK is widely heard in Europe and throughout North America.
BK has gobs of power and a big antenna ... see if you hear it!
When tuning for NDBs, put your receiver in the CW mode and
listen for the NDB's CW identifier, repeated every few seconds. Listen
for U.S. NDB identifiers approximately 1 kHz higher or lower than the
published transmitted frequency since these beacons are modulated with
a 1020 Hz tone approximately.
For example, 'AA' near Fargo, ND, transmitted on 365 kHz and its upper sideband CW identifier was tuned at 366.025 kHz while its lower sideband CW ident could be tuned at 363.946 kHz. Its USB tone was actually 1025 Hz while its LSB tone was 1054 Hz.
Often,
one sideband will be much stronger than the other so if you don't hear
the first one, try listening on the other sideband.
Canadian NDBs normally have an USB tone only, usually very close to 400 Hz. They also have a long dash (keydown) following the CW identifier.
All NDBs heard in North America will be listed in the RNA database (updated daily) while those heard in Europe may be found in the REU database. Beacons heard outside of these regions will be found in the RWW database. These databases have recently been re-vamped and are slicker than ever before!
From CLE organizers comes the following CLE info:
Hello
all,
Here are
brief details of our 273rd co-ordinated listening event, less than a
week away. Ideal to try out a CLE for the first time?
Days: Friday
22nd - Monday 25th Oct., Midday-Midday, your local time
- NDBs from 190 - 239.9
kHz
- PLUS: Normal NDBs with
carriers on the 'half-way' frequencies nnn.5 kHz from 190.5 - 999.5
kHz
So,
unusually, it is a CLE in two parts. The first part is hunting for the NDBs
whose published frequencies are lower than 240 kHz.
The second
part is hunting for the NDBs whose carrier frequencies are 'half-way'. E.g.
267.5 OPW, 333.5 VOG, 370.5 LB, 381.5 SJX (in Ml), 390.5 ITR, 427.5 OB (in AFS),
433.5 HEN and 514.5 LA
Most Europe
listeners will hear few or none from part 1, while listeners away from Europe
will hear few or none from part 2.
The last time
we covered these frequencies was for CLE257 in June 2020.
Please
log all the NDBs (within the frequency ranges specified) that you can identify plus any UNIDs that you come
across there.
Send
your final log to the List (not in an attachment, please) with 'CLE273’ and
‘FINAL' in its title (important).
Show
on each line:
# The Date (e.g. '2021-10-23', etc., or just '24' )
# The Time in UTC (the day changes at 00:00 UTC).
# kHz - the nominal published frequency, if known.
# The Call Ident.
Please
show those main items FIRST. Other optional details such as Location and
Distance go LATER in the same line.
As
always, of course, tell us your own location and give brief details of the
equipment that you were using during the Event.
We
will send the usual 'Any More Logs?' email at about 19:00 UTC on Tuesday so you
can check that your log has been found OK.
Do
make sure that your log has arrived on the List by 08:00 UTC on Wednesday 27 October at the very latest.
We
hope to complete making the combined results within a day or
two.
You
can soon find full details about current and past CLEs from the CLE page http://www.ndblist.info/cle.htm It
includes access to the CLE273 seeklists for your part of the World, prepared
from all the previous loggings in Rxx.
Good
listening
-
enjoy the CLE.
Brian and Joachim
------------------------------------------------------------------
From:
Brian Keyte G3SIA ndbcle'at'gmail.com
Location:
Surrey, SE England (CLE coordinator)
------------------------------------------------------------------
(If you would like to listen remotely you could use any one
remote
receiver for your loggings, stating its location and owner and
with
their permission if required. A remote listener may NOT also
use
another receiver, local or remote, to make further loggings for
the
same CLE)
These listening events serve several purposes. They
• determine, worldwide, which beacons are actually in service and on-the-air so the newly-re-vamped Rxx online database can be kept up-to-date
• determine, worldwide, which beacons are out-of-service or have gone silent since the last CLE covering this range
• will indicate the state of propagation conditions at the various participant locations
• will give you an indication of how well your LF/MF receiving system is working
• give participants a fun yet challenging activity to keep their listening skills honedFinal details can be found at the NDB List website, and worldwide results, for every participant, will be posted there a few days after the event. The NDB List Group
is a great place to learn more about the 'Art of NDB DXing' or to meet
other DXers in your region. There is a lot of good information
available there and new members are always very welcome. As well, you
can follow the results of other CLE participants from night to night as propagation is always an active topic of discussion.You
need not be an NDB List member to participate in the CLEs and all
reports, no matter how small, are of much value to the organizers. Remember - 'First-time' logs are always VERY welcome! Reports
may be sent to the NDB List Group or e-mailed to CLE co-ordinator,
Brian Keyte (G3SIA), whose address appears above. If you are a member of
the group, all final results will also be e-mailed and posted there.Please
... give the CLE a try ... then let us know what NDB's can be heard
from your location! Your report can then be added to the worldwide
database to help keep it up-to-date.Have fun and good hunting! 
