Vic, You may say this and it may be true in theory, but if you have a 400Hz filter and are listening on an otherwise clear segment of the band with a single relatively weak signal in the centre of the passband, try widening from 400Hz to 450Hz, in my case switching to the 2.1kHz filter. If you still believe there is no reason for the narrower filter, IMHO you need your hearing checked [no offense intended]. Or try telling the K3 that it's really a 500Hz filter and do the same from 500 to 550Hz, same effect.
Personally I have not had any need for anything narrower than 400Hz, although I would love a 200Hz filter if there was room for 6, but my lineup is FM, AM 6kHz, 2.7, 2.1, 400, so I don't have room for any more. 73, Thomas M0TRN On 5 July 2012 16:51, Vic K2VCO <[email protected]> wrote: > The ONLY time you need a narrower filter is when there is a signal that is > about S9+20 or > greater that is outside the DSP bandwidth that you have selected but still > within the > bandwidth of the selected filter. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
