I agree with Eric. You need to solve this on the rf side. You can using a loop receiving antenna and null out the source. Or, something like an ANC4.
Mike va3mw > On Jan 2, 2015, at 6:33 AM, Eric Buggee <[email protected]> wrote: > > Hi Alan, > > The DSP599zx may well reduce the baseband (audio) noise as demodulated; > BUT it will do nothing about the ambient RF pollution on 40m and lower bands. > > As you rightly conclude in your last paragraph no amount of audio > processing is going to remove the noise as received without degrading the > wanted signal(s). > > 73, > > Eric, VK3AX. > > > >> On 1/2/2015 10:03 PM, G4GNX wrote: >> Hi all. >> >> I have really bad noise floor issues at my home QTH in the UK, especially on >> 40 metres and below. Some of the issues may be cured as the neighbors’ >> Christmas lights are packed away for the year. >> >> I’ve been recommended to buy a Timewave DSP-599zx DSP filter by someone who >> does not own a K3. >> >> My questions: >> >> Are others using this filter in conjunction with a K3 or any other rig that >> already has good DSP capabilities? >> >> Can the Timewave product really better the already excellent DSP performance >> of the K3? >> >> Surely if the noise is right across the band and actually on top of the >> signals I want to resolve, no amount of processing is going to remove it >> without severely degrading the wanted signal too? >> >> 73, >> >> Alan. G4GNX >> ______________________________________________________________ >> 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 >> Message delivered to [email protected] > > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
