Hunting For NDBs In CLE247

courtesy: http://www.ve3gop.com
It's hard to believe that another month has passed, but boys and girls, this coming weekend will see another monthly CLE challenge!

This time the hunting grounds will be: 
320.0 - 334.9 kHz.

 

For those unfamiliar with this monthly activity, a 'CLE' is a 'Co-ordinated Listening Event', as NDB DXers around the world focus their listening time on one small slice of the NDB spectrum.

If you've been meaning to participate in  CLE, then maybe this weekend is a fine time to try! Lately, we've had a lot of first time submissions so you won't be alone!

As well, if you're trying to learn CW, copying NDBs is perfect practice, as the identifier speed is generally slow and the letters are repeated again every few seconds!

A nice challenge in this one is to hear YER - 334 kHz. 'YER' is located at Fort Severn, in northern Ontario, beside Hudson Bay.

'YER' runs 250W into a 100' vertical and is well-heard throughout North America, Europe and west to Hawaii!  Listen for its upper-sideband CW identifier (with your receiver in the CW mode) on 334.404 kHz.

At this time of the season, summer lightning storms should be starting to wane and propagation can often be as good as mid-winter if the lightning cooperates.

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, transmits on 365 kHz and its upper sideband CW identifier is tuned at 366.025 kHz while its lower sideband CW ident can be tuned at 363.946 kHz. Its USB tone is actually 1025 Hz while its LSB tone is 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.

From CLE organizer Brian Keyte, G3SIA, comes the details:

Hello all,

Here are all the details for this weekend's co-ordinated listening event.
First time CLE logs too?  Yes, please!
Short logs are always as welcome as long ones.

     Days:     Friday 23 August - Monday 26 August
     Times:    Start and End at midday, your LOCAL time
     Range:    320.0 - 334.9 kHz

Please log the NDBs you can positively identify that are listed in the
frequency range (no DGPS please), plus any UNIDs heard there too.

Send your CLE log to the List, if possible as a plain text email and not
in an attachment.  Put CLE247 and FINAL at the start of the email title.
Please show on EVERY LINE of your log:

   # The date and UTC (the day changes at 00:00 UTC).
   # kHz - the beacon's nominal published frequency, if you know it.
   # The Call Ident.

Show those main items FIRST on each line, before any optional details such
as the NDB's Location, Distance, Offsets, Cycle time, etc.
As always, make your log meaningful to everyone by including the listening
location and details of the receiver, aerial(s), etc.
It would be OK to use one remote receiver, with the owner's permission if
necessary, provided that ALL your loggings for the CLE are made using it.

Joachim or I will send the usual 'Any More Logs?' email at about 19:00 UTC
on Tuesday so that you can check that your log has been found OK.
Do make sure that your log has arrived on the List at the very latest by
08:00 UTC on Wed. 28th August.
We hope to complete the combined results within a day or two.

Remember that you can find all CLE-related information from our CLE page
( http://www.ndblist.info/cle.htm ), including a link to the seek lists and
maps provided for this Event from the Rxx Database.

Good listening
    Brian
---------------------------------------------------------------------
From: Brian Keyte G3SIA          ndbcle'at'gmail.com
Location: Surrey, SE England     (CLE coordinator)
---------------------------------------------------------------------



These listening events serve several purposes. They:
  • determine, worldwide, which beacons are actually in service and on-the-air so the 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 honed

The NDB List Group is a great place to learn more about the 'Art of NDB DXing' or to meet other listeners 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!


Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

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