Hunting For NDBs In CLE 221

YBV - 370kHz  (VE3GOP)



This coming weekend will see another CLE challenge. This time the hunting grounds will be:  370.0 - 384.9 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.

A nice challenge in this one is to hear the Berens River (Manitoba)  NDB, 'YBV', on 370 kHz. 'YBV' is a 25-watter and is well heard, having been logged from coast-to-coast as well as in Europe. Look for 'YBV's CW identifier, repeated every 10.4 seconds, on 370.373 kHz with your receiver in the CW mode.

YBV's 25W TX Rack (VE3GOP)
Summertime CLEs can often be challenging, not because of poor propagation but more likely, summer lightning storms ... hopefully it will be quiet for your location.

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' in Fargo 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 usual 'heads-up':

Hi all,

Please join us in our 221st coordinated Listening Event which starts
this Friday. All are very welcome. 

CLEs are not contests - if you enjoy taking part you will be a winner!
54 of us sent logs for CLE204 back in February 2016 when we
listened on these same frequencies.
It will certainly be tougher for most of us at this time of year.

Days: Friday 28 July - Monday 31 July
Times: Start and end at midday, your LOCAL TIME
Range: 370 - 384.9 kHz

Just log all the NDBs that you can identify with their nominal (listed)
frequencies in the range (it includes 370 kHz, but not 385 kHz)
plus any UNIDs that you come across there.

Please send your CLE log to the List in a plain text email if possible
(not in an attachment) with 'CLE221' at the start of its title.
Show on each log line:

# The date (e.g. 2017-07-29, etc., or just 29) and UTC.
(the date changes at 00:00 UTC)
# kHz (the nominal published frequency, if known)
# The Call Ident.

Show those main items FIRST - other optional details such as Location
and Distance go LATER in the same line.
If you send interim logs, please also send a 'Final' (complete) log.

As always, tell us your own location and brief details of the equipment
that you were using during the weekend.

I'll send the usual 'Any More Logs?' email at about 17:00 UTC on
Tuesday - you can check from it that your log has been found OK.
All logs must arrive on the list by 08:00 UTC on Wednesday 2nd
August at the very latest.
Joachim has again offered to make the combined results which he
hopes to complete on that day.

To help your listening, seeklists and maps for your part of the World
are available via the CLE page http://www.ndblist.info/cle.htm

Good listening - enjoy the CLE
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

Final 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. If you are a member of the ndblist Group, results will also be e-mailed and posted there.

The very active Yahoo ndblist 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.

If you are contemplating getting started on 630m, listening for NDBs  is an excellent way to test out your receive capabilities as there are several NDBs located near this part of the spectrum.

You need not be an ndblist member to participate in the CLEs and all reports, no matter how small, are of much value to the organizers. 

'First-time' logs are always VERY welcome!

Reports may be sent to the ndblist or e-mailed to either myself or CLE co-ordinator, Brian Keyte (G3SIA), whose address appears above.

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.

Good hunting!


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

Chameleon CHA P Loop 2.0 antenna 20% discount!!

Carl from Chameleon antenna left a message on my blog offering a 20% discount to their CHA P Loop  2.0 antenna  for my blog readers and it's available until the end of July! 
Below is the comment:

I've added the information to our website and also added a CHA P-LOOP 2.0 20% OFF discount for your readers, at the link below. The discount will be applied at the check out. The discount is valid until the end of July 2017.

https://chameleonantenna.cartloom.com/product/cha-p-loop-2-0

Cheers,

Carl

This is a new and improved version over the one that I have been using. The up to date spec's of this antenna can be found here. This is very generous of Carl and if you have ever been considering a portable Mag Loop antenna this is a great find. 

Mike Weir, VE3WDM, is a regular contributor to AmateurRadio.com and writes from Ontario, Canada. Contact him at [email protected].

Chameleon CHA P Loop 2.0 antenna 20% discount!!

Carl from Chameleon antenna left a message on my blog offering a 20% discount to their CHA P Loop  2.0 antenna  for my blog readers and it's available until the end of July! 
Below is the comment:

I've added the information to our website and also added a CHA P-LOOP 2.0 20% OFF discount for your readers, at the link below. The discount will be applied at the check out. The discount is valid until the end of July 2017.

https://chameleonantenna.cartloom.com/product/cha-p-loop-2-0

Cheers,

Carl

This is a new and improved version over the one that I have been using. The up to date spec's of this antenna can be found here. This is very generous of Carl and if you have ever been considering a portable Mag Loop antenna this is a great find. 

Mike Weir, VE3WDM, is a regular contributor to AmateurRadio.com and writes from Ontario, Canada. Contact him at [email protected].

50MHz FT8 and aircraft scatter

Playing with the new FT8 mode on 50MHz, I spotted something interesting on semi-local signals affected by aircraft scatter. On JT65A, I notice quite a few UK stations affected by aircraft scatter - you can always tell by a slight (sometimes more than slight!) slant to the main trace.

What's interesting on FT8 is that you get two separate decodes - one of the main signal and one of the reflected signal. Look at this screenshot and the signals from G0GGG


I have had quite a lot of success working UK stations on JT65A via aircraft scatter, although some overs have so much doppler that the decoder simply can't cope. Maybe FT8 will offer some more possibilities.


Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].

50MHz FT8 and aircraft scatter

Playing with the new FT8 mode on 50MHz, I spotted something interesting on semi-local signals affected by aircraft scatter. On JT65A, I notice quite a few UK stations affected by aircraft scatter - you can always tell by a slight (sometimes more than slight!) slant to the main trace.

What's interesting on FT8 is that you get two separate decodes - one of the main signal and one of the reflected signal. Look at this screenshot and the signals from G0GGG


I have had quite a lot of success working UK stations on JT65A via aircraft scatter, although some overs have so much doppler that the decoder simply can't cope. Maybe FT8 will offer some more possibilities.


Tim Kirby, G4VXE, is a regular contributor to AmateurRadio.com and writes from Oxfordshire, England. Contact him at [email protected].

ARISS 20th Anniversary SSTV

This weekend has seen another SSTV event from the International Space Station, this time in commemoration of the 20th Anniversary of ARISS (Amateur Radio on the International Space Station)

The 20 year history of ARISS was displayed through a collection of 12 images highlighting the accomplishments of the project over the last two decades.

As the ISS has orbited the world it has been transmitting the SSTV signals using FM on the usual downlink of 145.800 MHz, here at my QTH in the UK the passes have occurred late at night into the early morning, averaging 3 - 4 reasonable passes each day.

The signal has been very strong and so some excellent low noise images have been received by many people using just modest equipment. While not the greatest technical achievement in the world it nonetheless generates much needed interest in ARISS and amateur space communication.

My own system consisted of the Yaesu FT-857D and MMSSTV running on the shack PC and was left on automatic receive (I was tucked up in bed) and managed to get decent copies of all the images.

Image 8 reminded me of the fun I had back in 2011-2012 of receiving the ARRISAT-1 and was one of the key things that convinced me to finally get off my backside and actually get licensed, even if it took me another 12 months and to this day haven't really cracked satellites myself! My previous blog posts on that can be found at http://nerdsville.blogspot.co.uk/search/label/arissat-1

Here are the best of my images, for a full description of what each one depicts visit http://ariss-sstv.blogspot.co.uk/2017/07/anniversary-image-descriptions.html
















Andrew Garratt, MØNRD, is a regular contributor to AmateurRadio.com and writes from East Midlands, England. Contact him at [email protected].

ARISS 20th Anniversary SSTV

This weekend has seen another SSTV event from the International Space Station, this time in commemoration of the 20th Anniversary of ARISS (Amateur Radio on the International Space Station)

The 20 year history of ARISS was displayed through a collection of 12 images highlighting the accomplishments of the project over the last two decades.

As the ISS has orbited the world it has been transmitting the SSTV signals using FM on the usual downlink of 145.800 MHz, here at my QTH in the UK the passes have occurred late at night into the early morning, averaging 3 - 4 reasonable passes each day.

The signal has been very strong and so some excellent low noise images have been received by many people using just modest equipment. While not the greatest technical achievement in the world it nonetheless generates much needed interest in ARISS and amateur space communication.

My own system consisted of the Yaesu FT-857D and MMSSTV running on the shack PC and was left on automatic receive (I was tucked up in bed) and managed to get decent copies of all the images.

Image 8 reminded me of the fun I had back in 2011-2012 of receiving the ARRISAT-1 and was one of the key things that convinced me to finally get off my backside and actually get licensed, even if it took me another 12 months and to this day haven't really cracked satellites myself! My previous blog posts on that can be found at http://nerdsville.blogspot.co.uk/search/label/arissat-1

Here are the best of my images, for a full description of what each one depicts visit http://ariss-sstv.blogspot.co.uk/2017/07/anniversary-image-descriptions.html
















Andrew Garratt, MØNRD, is a regular contributor to AmateurRadio.com and writes from East Midlands, England. Contact him at [email protected].

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