[Elecraft] K2 SSBCAPKT: 2.4kHz or 2.6kHz SSB bandwidth?

Geoffrey Mackenzie-Kennedy gm4esd at btinternet.com
Sat Oct 17 07:28:58 EDT 2009


Ah but, under noisy band conditions the bandwidth of the listening receiver 
is most probably set to some value much less than 2.4 kHz. So I would 
question whether a wider filter in the transmitter does in fact result in 
improved intelligibility under these conditions.

FWIW I find that a 2.1 kHz filter in the transmitter, with the carrier 
placed so that the audio frequencies from 300 Hz downwards are attenuated, 
works well under noisy conditions without sounding like a parrot.

73,
Geoff
GM4ESD


Ron D'Eau Claire wrote on Friday, October 16, 2009 at 11:26 PM:

> The improved intelligibility of the wider filter comes from the better 
> high
> frequency response.





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