I suspect it is going to become the standard for many if not most of the new radios. As soon as it became apparent that effective roofing filters can really improve the close in IMD performance, it seems as if a low first IF frequency has become almost mandatory. I note that the Orion and the new Yaesu FT 5000 both use down conversion for the first IF and, therefore, have effective narrow roofing filters. I wonder when, or if, ICOM and the others will follow suit.
By the way, thank you so much for the new APF feature. I think that was something which was missing from the K-3 up until now. I have always found that filter to be helpful in trying to hear very weak CW signals, especially if the band is noisy. I have had good luck with it on my FT 1000D and I missed it on my K-3s. Fortunately it is no longer missing and already I found it to be very helpful. I guess I was lucky in that I really noticed no problems with version 2.17 but I'm glad to see the update to that which I have installed on one of my K-3s and it seems to be working very well. Bruce-W8FU -----Original Message----- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Wayne Burdick Sent: Tuesday, November 16, 2010 6:32 PM To: Elecraft Reflector Subject: Re: [Elecraft] Down-conversion ______________________________________________________________ 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
