|
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)
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
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
| 