Stan, Since you have decided to go with the 2.7 filter, you have a couple decisions to make. Do you pay for matched filters between the main and the sub so you can have good diversity reception, or do you "cheat" and set the filter offsets to the mean of the two filters.
At a 2.7 width, the small variation from the true offsets will not make much difference, but you do need to set them to the mean for diversity reception. In other words, if one filter had a -600 Hz offset and the other -300, setting the offset for both at -450 Hz will work just fine. With more narrow filters, you may not be able to get away with that, but with wide filters, the percentage change is not as great. 73, Don W3FPR On 9/25/2012 4:06 PM, Stan AE7UT wrote: > Thanks for all the feed-back. It looks like I'm at least in the right ball > park. > I definitely want the diversity reception so I'll be doubling most if not > all filters. > I've decided to stick with the 2.7 for now. I doubt my ears could hear the > difference. > > Interesting that most here have gone with the 2.1 vs. the 1.8 KHz filters. > I'm going to have to go home and listen closer to see if I like 2.1 or 1.8. > > Thanks again. You guys have been a tremendous help. > > 73 > Stan AE7UT > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/K3-Filter-suggestions-for-new-builder-tp7563280p7563295.html > Sent from the Elecraft mailing list archive at Nabble.com. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft@mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
