Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: LF: Re: 153KHz view from EU

To: [email protected]
Subject: Re: LF: Re: 153KHz view from EU
From: Scott Tilley <[email protected]>
Date: Fri, 17 Sep 2010 20:05:41 +0000
In-reply-to: <E8CDEAE38EF24BEFAC9146F695A9F3D6@Black>
References: <0EA4969E8F9344738D579A32DE059F38@Black> <E8CDEAE38EF24BEFAC9146F695A9F3D6@Black>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.8) Gecko/20100802 Thunderbird/3.1.2
Thanks Markus!

Not much left to the imagination now!

VOR does shutdown sometime in the day so that may be what's happening.  The info I have says '2000-1600UTC daily'...  Perhaps it will start soon and wake everyone up in Komsomolsk?





On 9/17/2010 7:26 PM, Markus Vester wrote:
Hi Scott, LF,
 
I've temporarily tuned the grabber to 153 kHz, inserted a 20 dB pad, and slowed down the TA window to 10.5 mHz resolution, 30s scroll:
I intend to leave it running for a couple of hours, and bring it back to 137 before going to bed.
 
The cyan line on 0.0 Hz is DLF Donebach at ~ 277°, with weak sidelines at  0.2 Hz multiples from the data frames. I have placed a null on it, but the E-H cancellation is incomplete due to skywave QSB effects. 
 
The strong orange line at + 0.525 Hz is clearly Brasov (Romania) at ~140°. This is most likely the "new unid" in your spectrogram.
 
I can't make out Bechar Algeria yet (should be green and strong), but if it's on frequency I couldn't separate it from DLF here. Same perhaps for Ingoy (Norway, dark blue).
 
No signs of "VOR" Komsomolsk at + 1.5 Hz either, but that may simply be too far.
 
Best 73,
 
MArkus 
DF6NM in Nuernberg, JN59NK
 
----- Original Message -----
Sent: Friday, September 17, 2010 8:07 PM
Subject: LF: 153KHz view from EU

Hi Scott,
 
sounds like a nice challenge for my colour-DF system...
 
Donebach is GPS and Cesium controlled so the carrier should be accurately on frequency. At 160 km, they are overwhelmingly strong here, and there are close-in sidebands from low datarate DGPS signalling ("AMDS") and dynamic carrier control. Even with about 30 dB directional nulling (left part of screenshot), there is nothing else to see in daytime.
 
I will try to take a more detailed look tonight, when the DLF level should be significantly reduced due to power reduction and transmit antenna pattern switchover.  
 
Best 73,
Markus (DF6NM)
----- Original Message -----
Sent: Friday, September 17, 2010 5:45 AM
Subject: LF: 153KHz view from EU

  Would someone with suitable equipment in Europe mind taking a look on 153KHz and sending me a grab of the carriers there?

I would like to sort out who's who.  If you could null some of the carriers to determine rough bearings from your QTH that would be great!

I understand the following stations are on 153KHz world wide:

   a.. Antena Satelor / Radio Romania - Brasov, Romania - 1200 kW
   b.. Chaine 1 - Béchar, Algeria - 2000 kW
   c.. Deutschlandfunk - Donebach, Germany - 500 kW (250 kW night)
   d.. NRK Finnmark - Ingoy, Norway - 100 kW
   e.. Radio Rossii - Komsomolsk, Russia - 1200 kW  (presently known to be at ~153001.5Hz)
from
http://wiki.mayson.us/wiki/List_of_longwave_broadcast_transmitters#153_kHz

I regularly see a carrier bang on 153000 and one at 153000.5ish during time of propagation to EU.

Thanks,
Scott
VE7TIL CN89dk
http://www3.telus.net/sthed/argo/




<Prev in Thread] Current Thread [Next in Thread>