Re: LF: 27.925 is correct dial

To:	<[email protected]>
Subject:	Re: LF: 27.925 is correct dial
From:	"Markus Vester" <[email protected]>
Date:	Sat, 8 Mar 2014 19:36:55 +0100
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Hi Graham,

well opds "dBOp" has been calibrated to display SNR on the same "average power" scale as Opera, ie carrier power in 2.5 kHz minus 4 dB. However I concede that opds SNR measurements are not always accurate. Especially with either strong signals, or unstable / incoherent transmissions, the estimate of the carrier power or noise can go wrong by several dB.

You mentioned improvements to the decoding algorithm in the latest Opera version - can you give details?

73, Markus

From: Graham

Sent: Saturday, March 08, 2014 7:19 PM

To: [email protected]

Subject: Re: LF: 27.925 is correct dial

...

OP32 min as used on 136 KHz , gives ~ -41 dB min , so OP2H
should run - 47 , I note Dex reached -48 , which is -54/55 on
Marcus's scale

Tnx , G,

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