[Lowfer] early T/A

[jrusgrove at comcast.net]

Garry

Excellent!

The 22 mHz bandwidth is little curious. I've seen some propagation 'anomolies' on Bob and Joe's 
signal that increased their apparent bandwidth to 10 - 14 mHz but haven't seen this on T/A signals.

Not sure what would cause detection at 70 min as opposed to 35 minutes. Could just be fading. I see 
that the setup here just went 70 minutes on VO1NA even though he is reasonably strong. The threshold 
at 15 dB is a go / no go proposition.

BTW, I currently run with SL in normal priority and OPDS below normal and this has been working 
well.

Jay



----- Original Message ----- 
From: "Garry Hess" <k3siw at sbcglobal.net>
To: "lowfer list" <lowfer at mailman.qth.net>
Sent: Saturday, November 02, 2013 9:44 PM
Subject: Re: [Lowfer] early T/A


> Jay, opds32 finally produced something other than VO1NA tonight:
>
> 2013-11-03 01:04:18 DK7FC   7041km 137559.926Hz  22mHz -40.7dBOp  94% 18.4dB
> 2013-11-03 00:29:17 DK7FC   7041km 137559.924Hz   5mHz -46.5dBOp  97% 16.9dB
>
> The frequency readout is about 0.01Hz high despite being calibrated and locked to GPS. Must be 
> some offset bias introduced by spec lab. I know when I use a digital filter the center is shifted 
> slightly from what I specify.
>
> I've also noticed the "faster than real time" results in some decodes. And even when the signal 
> stays strong I seldom seem to get decodes every 35 minutes, instead they're usually 70 minutes 
> apart.
>
> But deep search does help. I'm running regular Opera on another setup and even though ARGO at 
> QRSS30 shows both VO1NA and DK7FC, no decodes have occurred yet. Noticed WD2XES briefly earlier 
> but perhaps he was up for too short a time to decode. The FFT peak certainly looked strong enough.
> -- 
> 73, Garry, K3SIW, EN52ta, Elgin, IL
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