Hi Joe,
nice to see your callsign again,
and that you were detected in the Ionian sea!
Yes as you say, the suggested
frequency ranges were reorganized in a recent software version from
EA5HVK, using a common 1500 Hz audio center frequency for different
bands and speeds. On LF, Opera software now listens for Op-32 between
137.45 and 137.55 kHz, and most opds observers have followed. However
depending on the particular FFT settings, the opds detection range
usually extends a few Hz beyond that range, so you were lucky last
night ;-)
All the best,
Markus (DF6NM)
Sent: Sunday, October
19, 2014 8:26 PM
Subject: Re: LF: 136
Khz opera 32 deep search last night km07ks
Thanks Dionysios and Terry GW0EZY
for the reports of the OP transmissions.
Thanks also to DF6NM for his grabber and accurate freq measurements.
It seems many OP stations have migrated down about 50 Hz. Did I miss
something?
The TX was running 240 watts 2.2 amps to the 100 m wire. Will be QRV
& QRO again tonight.
73
Joe VO1NA
On Sun, 19 Oct 2014, Dionysios Vlachiotis wrote:
> sv8rv km07ks Opera-32 correlation
>
> date time call distance frequency bandwidth snr
correlation
>
> 2014-10-19 03:54:24 VO1NA 5905km 137554.746Hz 2mHz -47.6dBOp
92% 15.1dB
> 2014-10-19 01:34:22 VO1NA 5905km 137554.746Hz 2mHz -47.0dBOp
84% 16.7dB
> 2014-10-18 22:58:33 DF6NM 1510km 137507.749Hz 2mHz -29.9dBOp
97% 20.0dB
> 2014-10-18 22:50:32 G3XDV 2266km 137529.800Hz 4mHz -39.3dBOp
100% 20.3dB
> 2014-10-18 20:34:20 G3XDV 2266km 137529.800Hz 2mHz -41.7dBOp
92% 19.9dB
> 2014-10-18 19:55:44 DF6NM 1510km 137507.749Hz 2mHz -33.0dBOp
88% 19.7dB
> 2014-10-18 18:24:46 G3XDV 2266km 137529.797Hz 9mHz -46.7dBOp
91% 17.7dB
>
>
> 73 de SV8RV
> Dionysios Vlachiotis
> Zakynthos (Zante) island GREECE
