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| To: | [email protected] |
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| 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, Markus -----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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