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Re: LF: SV8CS OP32

To: <[email protected]>
Subject: Re: LF: SV8CS OP32
From: "Graham" <[email protected]>
Date: Tue, 19 Feb 2013 21:20:52 -0000
Importance: Normal
In-reply-to: <1CB82CEE27074CA7BBC5BA732A9176AB@White>
References: <[email protected]> <05453CDAACF7491F9E3E1927CDA0B787@SV8CSHP> <B01A53A6C6EC4850BF6441320DA2AB62@AGB> <779B6CDC0ADC4F49900D2AF4953F1D13@SV8CSHP> <A45412C89DA843C5992225A472F3EBB6@AGB> <1CB82CEE27074CA7BBC5BA732A9176AB@White>
Reply-to: [email protected]
Sender: [email protected]
OK Marcus
 
Well  , the  auto placement   only  works  with  SDR or  Audio  drive , for  the  Yuma , I don't  think its  possible ..
 
>>>>   but  use RX  and   then  net the  Yuma to the  selected   audio  tone  + 136,000 Hz  ? would   give  similar  result ?  <<<
 
have to  use  c-timer  or  spec-lab to   measure the  sound-card  out-put  ?
 
Early  test  versions  did  give  audio  tone , but  that's  something  that  is needed  for  a  beacon  rx only  version  , for  fixed  beacons  , to   give  true  frequency   reading  / off  sets  ..... 
 
73 -G..

Sent: Tuesday, February 19, 2013 8:20 PM
Subject: Re: LF: SV8CS OP32

Hi Graham, Spiros,
 
I don't think Spiros' electrical antenna would have significant directivity. The reason for the missing reports from east Europe is most likely Loran interference on his TX frequency 137550 Hz (as mentioned as "dial" in his earlier email).
 
All stations of the Russian Loran chain (GRI 8000) emit discrete spectral lines on multiples of 6.25 Hz. These are already significant here in Germany, and would be much stronger further east. In Western Europe, the relevant chains are Lessay (GRI 6731) and Sylt (GRI 7499). Line frequencies which should be avoided appear on exact integer multiples of 50000/GRI. 
 
If you used Opera's automatic TX frequency selection it would probably evade those lines which are visible at the TX location, but it knows nothing of those in distant potential target areas. 
 
BTW it would be helpful if the Op system reported actual receive frequencies and not only "meters band" along with time and SNR.
 
Best 73,
Markus (DF6NM)
From: Graham
Sent: Tuesday, February 19, 2013 7:45 PM
Subject: Re: LF: SV8CS OP32
 
Ok Spiros
I was 'ok' till   I got  to   40 mtr  vertical  !   ,  120  feet  !  that  would explain  why !  
Glad , the Op system is  working  for  you 
73 -G..
 
Sent: Tuesday, February 19, 2013 6:17 PM
Subject: LF: SV8CS OP32

Hi Graham.
My output PWR on YUMA is 50W RF.
The antenna is a 3 parallel wires 28.00 m long (50cm distance between wires) and aprox 40m Vertical.
Marconi “T” type antenna.
Tnx
73, Spiros/SV8CS
 
From: Graham
Sent: Tuesday, February 19, 2013 1:51 PM
Subject: Re: LF: SV8CS OP32
 
Good results Spiros  !
What  is the  RF Power  ? ,  do  you  think you  have a  directional   Ae ?  
73 -G..
 
Sent: Tuesday, February 19, 2013 5:14 AM
Subject: LF: SV8CS OP32
 
OP32 captured on 136.00KHz last night.
 
04:12    136 SV8CS de SV2DCD Op32 304 km -25 dB in Kastoria with 0.3w + Marconi "T"
04:12    136 SV8CS de G3XDV Op32 2260 km -35 dB in Welwyn, IO91VT with 0.3w + Marco
02:32    136 SV8CS de F6CNI Op32 1876 km -37 dB in JN19QB with 0.3w + Marconi "T" 2
02:32    136 SV8CS de G3XDV Op32 2260 km -36 dB in Welwyn, IO91VT with 0.3w + Marco
02:32    136 SV8CS de SV2DCD Op32 304 km -24 dB in Kastoria with 0.3w + Marconi "T"
01:03    136 UA4WPF de DL-SWL Op32 2730 km -33 dB in nr Wolfsburg
01:03    136 UA4WPF de G3XDV Op32 3420 km -31 dB in Welwyn, IO91VT
01:03    136 UA4WPF de RN3AGC Op32 973 km -22 dB in Moscow
01:03    136 UA4WPF de RA3YO Op32 1268 km -34 dB in Bryansk
01:03    136 UA4WPF de RX3DHR Op32 928 km -17 dB in Zaraysk   .
01:03    136 UA4WPF de SM2DJK Op32 1958 km -11 dB in Umea
01:03    136 UA4WPF de F6CNI Op32 3370 km -38 dB in JN19QB
00:52    136 SV8CS de F6CNI Op32 1876 km -34 dB in JN19QB with 0.3w + Marconi "T" 2
00:52    136 SV8CS de G3XDV Op32 2260 km -36 dB in Welwyn, IO91VT with 0.3w + Marco
 
Earlier I had also capture by Mauro IK1WVQ.
Also first time my signal heard outside of my QTH into SV land by Leo,SV2DCD .
 
TNX.
73,Spiros/SV8CS
 
 ...
 
Sent: Sunday, February 10, 2013 10:50 PM
Subject: LF: SV8CS 137.550 OP32

Now TXing OP32 at 137.550 dial .
GN to all.
Spiros/SV8CS
 
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