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Re: LF: CW 477.7 kHz

To: [email protected]
Subject: Re: LF: CW 477.7 kHz
From: Markus Vester <[email protected]>
Date: Sat, 23 Sep 2017 08:10:42 -0400
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Hi Roelof,

this seems to be too optimistic. WSPR-2 decodes down to -29 dB in 2.5 kHz, equivalent to -5 dB in 10 Hz. Aural CW would probably require around +6 dB in that bandwidth, i.e. 11 dB less sensitive.

Best 73,

-----Ursprüngliche Mitteilung-----
Von: Roelof Bakker <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 23. Sept 2017 13:01
Betreff: Re: LF: CW 477.7 kHz
I believe slow Morse, say 10 WPM, received with a 10 Hz filter will
achieve about the same signal to noise ratio as WSPR. In this case
this is 24 dB compared to a 2500 Hz SSB bandwidth.
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