Hi Chuck, I agree with K9FN. I have the 250 Hz filters and rarely use them. The 400 Hz filters are great. So good that I would not miss the 250s at all. On SSB I also have the stock filters. Here's how I handle crowded phone contests. I set the width to 2.0, sometimes 1.8. Then use the shift knob to clean up the signal. It is amazing how that works and most of the time the desired signal pops right out of the QRM. I contest and chase DX a lot, 90% CW and favor the low bands too. I don't do digital modes but that would be the only other case where I'd consider a special bandwidth roofing filter.
73, Gary K9GS -------- Original message --------From: David Bunte <[email protected]> Date: 3/8/18 10:45 AM (GMT-06:00) To: Chuck Chandler <[email protected]> Cc: [email protected] Subject: Re: [Elecraft] Planning the next filters Chuck - You will likely get a wide variety of responses, and here is mine. I added the 400 Hz filter to my main and sub receiver. I work CW almost exclusively. I rag chew and chase some DX. I barely “dabble” in contests. I can’t recall a single time when I thought a narrower CW filter would have made a difference for me. It may help that my antenna is quite modest, and I don’t have other hames near enough to impede my reception. Best of luck as you proce d. Dave - K9FN On Thu, Mar 8, 2018 at 11:24 AM Chuck Chandler <[email protected]> wrote: > Right now I have the stock SSB and a 400 Hz filter in both main and sub > rcvrs. I would like to add some a few at a time. My first priority is to > add a couple to the main receiver, since it is the biggest chore to get > to. > > I plan on a 250 Hz CW filter, but am going back and forth between the 2.1 > and 1.8 kHz filters. I know that narrowing the DSP to 1.8 gives a really > difficult to understand voice signal, while the 2.1 allows in more adjacent > signals. However, the roofing filters may not behave in the same manner. > For example, the 1.8 could be set to turn on at 2.1 to take advantage of > skirt shape. > > I primarily DX, and operate in some contests as well. I know SSB contests > really need a narrow SSB filter. > > Any suggestions on the matter from those who have gone this route before? > > 73 de Chuck, WS1L > > -- > > > =================== > Chuck Chandler > [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] ______________________________________________________________ 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]
