Hello Graham, Markus and others.
Your observations are correct and thank you.
Yesterday tested in my remote site location a new antenna.
The antenna is a vertical 14,50m with 70m horizontal (INV “V”) with my YUMA transmitter – 30w output.
The remote site is at the top of a mountain 600 m a.s.l. with open horizon all around.
That was the weak transmittion in QRG 137.510.
For comparative reports in the next TX I used my normal qro transmitter at home in 137.520.
Seems that the antenna work fine.
73, Spiros/SV8CS
Only + 20 db Probably aircraft flutter ..
-32 | OPERA | 0.136 | 21/12/2014 19:22 | Greece | 1.42E+09 | SV8CS | KM07JS | IZ7SLZ |
-12 | OPERA | 0.136 | 21/12/2014 19:56 | Greece | 1.42E+09 | SV8CS | KM07JS | IZ7SLZ |
-24 | OPERA | 0.136 | 21/12/2014 21:02 | Greece | 1.42E+09 | SV8CS | KM07JS | IZ7SLZ |
Sent: Sunday, December 21, 2014 11:26 PM
Subject: LF: SV8CS Op-32 QRO?
Two consecutive Op-32 transmissions from SV8CS, showing an unusual step in frequency and in fieldstrength:
2014-12-21 19:56:53 SV8CS 1506km 137519.965Hz 12mHz -26.8dBOp 69% 21.5dB
2014-12-21 19:22:44 SV8CS 1506km 137510.869Hz 56mHz -33.2dBOp 100% 21.3dB