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| To: | Andy Talbot <[email protected]>, [email protected] |
|---|---|
| Subject: | Re: LF: First MF TA since a longer time |
| From: | [email protected] |
| Date: | Fri, 25 Sep 2015 12:35:44 +0200 |
| In-reply-to: | <CAA8k23S_pE5V_o1=hH3WOnh4Y79mv1fJaRA-cn4amoaiKJh7-g@mail.gmail.com> |
| References: | <[email protected]>, <E13E1AE9119F43F59CFF643490212F36@PCFausto>, <CAA8k23S_pE5V_o1=hH3WOnh4Y79mv1fJaRA-cn4amoaiKJh7-g@mail.gmail.com> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
|
Hello Andy,
>>>
You'll see that down to about -14dB S/n (2.5kHz) is just about detectable as an
audio tone - although I doubt many even experienced OPs could read CW that low
<<<
Using a 10 Hz bandwidth the S/n is 24 dB in regard to an SSB bandwidth of 2500
Hz. For keying speeds of about 10 wpm, this is an easy copy.
Using coherent detection a further inprovement is no problem at all.
73,
Roelof Bakker, pa0rdt
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