After some years of both a 13 and 6 kHz filter in my K3 with sub-RX, I gave up on the 13 kHz as not being particularly useful as I wound up never listening to FM on my K3.
On the other hand I frequently4 used the 6 kHz filter on AM in the "Sync" mode, which uses USB and LSB demodulation, but locks onto the AM carrier frequency. This does music well, not super hifi by any means, but it has the singular advantage of locking on the carrier and listening to the upper OR lower sideband with the filter removing the opposite sideband. If there is QRM to the broad AM signal that is not an on-channel AM signal, it will usually be on one side or another. The shift control will move the filter placement between carrier plus upper sideband and carrier plus lower sideband. The display always shows the carrier frequency. Of late I use AM Sync mode all the time by habit with width set to max. And by all means get the KBPF3A. Since I do diversity listening, I have the 6 kHz filter and KBPF3A on both main and sub RX. We have an oldies station on 850 AM here. I wondered why the upper sideband didn't sound as clear as the lower. When I got a P3, the reason why was obvious. They were transmitting it that way. So I just set the shift for LSB. At any rate, good luck. 73, Guy K2AV On Sat, Jun 25, 2016 at 2:37 PM, Rick Dwight <[email protected]> wrote: > I am going to order a K3S and have my filter selection figured out OK for > CW and SSB. However I want to do a little BCB and SWL listening on AM. At > this time no plans to transmit AM. I live in rural Alaska and there are no > strong BCB or SW broadcast stations close to my QTH. Is there any reason > to equip my my K3S with either the 6 kHz or FM filter roofing filters for > AM reception or will the DSP filter do the job. I realize that if I want > to tx AM I will need to install the 6kHz filter. My interests are 99% CW > and my cw filters will include the 700Hz filter which I have already > obtained. Thanks, Rick KL7CW > ______________________________________________________________ > 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]
