[Lowfer] 73 kHz dial freq-74.5495 transmit freq-2200Z start...

[Garry Hess]

Bob, your signal started out weaker than last night, but eventually 
caught up in regular opera65 snr. Thanks to Markus, DF6NM I was able to 
run deep-search opera at rate 64 on another computer/e-probe/SDR-IQ. 
Don't trust those snr numbers as the spec lab peak of your signal was 
very high. Maybe keying sidebands, which were very evident in the 
spectrum, impacted the noise floor. The frequency readouts aren't 
accurate because the SDR-IQ used was running off its internal clock and 
hasn't been calibrated recently.

Opera v1.4.9 rate 65 decodes:
07:50 73 WG4XRS Op65 -9 dB 
|-----------------------------------------------------------------------------------------------------------------------| 
  Fade: 0%
06:44 73 WG4XRS Op65 -10 dB 
|------------------------------------------------------------- 
---------------------------------------------------------|  Fade: 1%
05:38 73 WG4XRS Op65 -12 dB 
|-----------------------------------------------------------------------------------------------------------------------| 
  Fade: 0%
04:33 73 WG4XRS Op65 -14 dB 
|-----------------------------------------------------------------------------------------------------------------------| 
  Fade: 0%
03:27 73 WG4XRS Op65 -15 dB 
|-------------------------------------------------------------------------------------------- 
--------------------------|  Fade: 1%
02:21 73 WG4XRS Op65 -15 dB 
|-----------------------------------------------------------------------------------------------------------------------| 
  Fade: 0%
01:16 73 WG4XRS Op65 -16 dB    |--- 
-------------------------------------------------------------------------------------------------------------------| 
  Fade: 1%
00:10 73 WG4XRS Op65 -21 dB 
|-----------------------------------------------------------------------------------------------------------------------| 
  Fade: 0%
***********  10/12/2013  ***********
23:04 73 WG4XRS Op65 -24 dB    |            -------------- - 
 
---------------------------------------------------------------------------------| 
  Fade: 19%
***********  09/12/2013  ***********

deep-search rate 64 decodes:
DF6NM JN59NJ Opera-64 correlation 
http://df6nm.bplaced.net/opera/opds.zip

    date      time   call   distance  frequency bandwidth  snr 
correlation

sdr-iq2, eprobe1
2013-12-10 07:50:21 WG4XRS   934km  74549.468Hz   4mHz -21.5dBOp  85% 20.0dB
2013-12-10 06:44:41 WG4XRS   934km  74549.470Hz   5mHz -19.5dBOp  94% 20.5dB
2013-12-10 05:38:57 WG4XRS   934km  74549.474Hz   5mHz -24.7dBOp 100% 20.2dB
2013-12-10 04:33:15 WG4XRS   934km  74549.478Hz   2mHz -24.6dBOp  96% 20.3dB
2013-12-10 03:27:33 WG4XRS   934km  74549.476Hz   4mHz -25.3dBOp  90% 20.4dB
2013-12-10 02:21:49 WG4XRS   934km  74549.474Hz   2mHz -23.4dBOp  78% 19.7dB
2013-12-10 01:44:06 WG4XRS   934km  74549.474Hz   1mHz -21.7dBOp  83% 20.1dB

-- 
73, Garry, K3SIW, EN52ta, Elgin, IL