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Author Topic: Beacon from Italy on 7039.80  (Read 384 times)
N7BKV
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Posts: 1




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« on: November 05, 2018, 07:31:44 AM »

At certain hours I pick up this beacon:

7039.8  IZ3DVW  Monselice Padua  JN55VF    ERPw 0.5  Inv V   Mode:   A1    Status:  24

Info from :  https://www.keele.ac.uk/depts/por/28.htm

5975 miles from my QTH.  Rx better in morning hours.

Is this legit or recognized?  Or is this a freelancer? 

Is this beacon useful?

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DJ1YFK
Member

Posts: 277


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« Reply #1 on: November 05, 2018, 01:05:35 PM »

At certain hours I pick up this beacon:

7039.8  IZ3DVW  Monselice Padua  JN55VF    ERPw 0.5  Inv V   Mode:   A1    Status:  24

Info from :  https://www.keele.ac.uk/depts/por/28.htm

5975 miles from my QTH.  Rx better in morning hours.

Is this legit or recognized?  Or is this a freelancer?  

Is this beacon useful?

The beacon exists and can be heard in Europe every day without problems. I am listening to it on 3576.5 kHz right now, where it also transmits. Uncoordinated beacons below 14 MHz like this one are explicitly discouraged by the IARU and with the proliferation of the RBN there are nowadays better ways to check propagation (exceptions exist, e.g. on bands with spotty propagation). So the question how useful the beacon is can be answered with "not very much". They take away valuable bandwidth and add very little value.

According to the RBN, the beacon is heard very regularly every day on 80m and 40m in Europe, but only during 6 clock hours of the last year, a report from a North American skimmer was logged: https://foc.dj1yfk.de/activity/IZ3DVW

This makes me skeptical if what you heard was actually IZ3DVW. There are a few other beacons around this frequency, like the Russian letter beacons. If it's actually IZ3DVW, that really a notable achievement!

73
Fabian, DJ1YFK
« Last Edit: November 05, 2018, 01:11:31 PM by DJ1YFK » Logged

N7BKV
Member

Posts: 1




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« Reply #2 on: November 05, 2018, 08:03:03 PM »

Thanks Fabian, DJ1YFK

I was surprised to find it, given the rules.  But under most good conditions it is there. 

And you are right, it takes up considerable band width. 

More of a bother than a help.

I appreciate your comments.


73
Brian
N7BKV

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N7BKV
Member

Posts: 1




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« Reply #3 on: November 06, 2018, 08:27:49 AM »

...This makes me skeptical if what you heard was actually IZ3DVW. There are a few other beacons around this frequency, like the Russian letter beacons. If it's actually IZ3DVW, that really a notable achievement!

73
Fabian, DJ1YFK

I can get letter beacons A, F, and K at my QTH grid CM97vu.  Faint, but distinct.  They show up as reported on precisely on 7039.2, 7039.2 and 7039.3.  But they all seem to tx a very slow "dah dah".  All the same M, not A, F, or K.

So I do believe that IZ3DVW is what I Rx on 7039.8.  It is far stronger and clearer.  Overpowers most of the noise at times.

I am running a half wavelength 40 M antenna about 30' up over sloping south facing terrain and clear of city noise and local power lines.  It is oriented at 99 degrees magnetic with the radiator on the west end.

Maybe all that physics works together.

My rig is a QRP Labs QCX.

73
Brian N
N7BKV
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