[Lowfer] XGJ on 137 in EN90xn

[Michael Sapp]

Garry & All: I was surprised no one mentioned XGJ being active last nite 
just below MP. Very robust signal here, I had to listen in the SW direction 
to keep ARGO from overloading.....

No luck with XNI or JAM, but I did not listen much past 0500Z

73  Mike wa3tts


----- Original Message ----- 
From: "Garry Hess" <k3siw at sbcglobal.net>
To: "lowfer list" <lowfer at mailman.qth.net>
Sent: Friday, November 29, 2013 8:27 AM
Subject: [Lowfer] 136 kHz Opera


> Noticed WD2XES was active sending opera32 on 136 kHz (dial frequency) last 
> night. Jay peaked at -19 dB SNR with an eprobe and regular opera decoding 
> software. Results with the deep search software were not credible - 
> apparently there are errors when the signal is very strong:
>
> 2013-11-29 05:32:06 WD2XNS  1268km 137553.003Hz 165mHz -99.9dBOp  97% 
> 15.0dB
> 2013-11-29 04:59:09 WD2XNS  1268km 137553.010Hz 211mHz -99.9dBOp  88% 
> 19.7dB
> 2013-11-29 04:26:13 WD2XNS  1268km 137552.997Hz 186mHz -48.4dBOp  97% 
> 20.6dB
> 2013-11-29 03:53:17 WD2XNS  1268km 137553.009Hz 198mHz -99.9dBOp 100% 
> 20.5dB
> 2013-11-29 03:20:20 WD2XNS  1268km 137553.079Hz 150mHz -42.8dBOp  84% 
> 19.4dB
>
> Deep search here regularly complains of inability to create files but 
> gives no guidance on what files are causing problems. It also occasionally 
> transitions to German text for some presumably different error. That's on 
> a PC running Windows XP Media Center. A second PC running Windows XP Home 
> Edition doesn't seem to have those errors, but on it I've noticed failure 
> to decode VO1NA at times even though the Spec Lab FFT clearly shows it in 
> there well above the noise floor.
>
> The processing load is too high to trust running both regular opera and 
> deep search opera on the same PC here so not sure how different the SNR 
> numbers are, but others have noted deep search values are appreciably 
> lower than regular opera values. I'll have a newer more powerful Windows 7 
> PC online shortly and it will be interesting to see how the software fairs 
> on it.
>
> -- 
> 73, Garry, K3SIW, EN52ta, Elgin, IL
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