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LF: RE: Opera weak signal Rx

from [Rik Strobbe] [Permanent Link][Original]
To: "[email protected]" <[email protected]>
Subject: LF: RE: Opera weak signal Rx
From: Rik Strobbe <[email protected]>
Date: Thu, 2 Feb 2012 22:06:21 +0100
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In-reply-to: <372EEAF266214ECDB1E430B737F510BA@GaryPC>
References: <372EEAF266214ECDB1E430B737F510BA@GaryPC>
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Thread-topic: Opera weak signal Rx
Gary,
 
in the little test I did earlier today (sending only the last 96 bits) I noticed that Opera reported -38dB while the real SNR was about +15dB.
I assume that the SNR value gets wrong as a part of the bits get lost (eg. QSB).
In addition Opera gives a 4dB lower value than WSPR.
The combination may explain -41dB.
 
73, Rik  ON7YD
 
Van: [email protected] [[email protected]] namens Gary G4WGT [[email protected]]
Verzonden: donderdag 2 februari 2012 21:59
Aan: [email protected]; LF Group
Onderwerp: LF: Opera weak signal Rx

Hi All,
 
Amazing Opera decode of weak signal at -41dB :-
 
20:38 136 UA4WPF de G4WGT Op32 3462 km -41 dB in IO83qo, nr Preston.
 
73, Gary - G4WGT.
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