Hi Fred I used one before I put the KDSP2 in my K2. The KAF2 will work best if you keep signal levles into it down and use more audio gain after the filter. I seem to recall there is some way to adjust gain in the filter, but I forget just what it is. Where you have enough signal strength, you might benefit from using the attenuator or just straight in. You may not need the preamp except on the higher bands where signals just are not strong.
If you have Spectrogram 5.1.7, be sure to use it to carefully match the AF filter to the crystal filter passbands for the best results. Good luck and 73 Bob N6WG ----- Original Message ----- From: "Fred Jensen" <[EMAIL PROTECTED]> To: "Elecraft Reflector" <[email protected]> Sent: Thursday, March 20, 2008 3:46 PM Subject: [Elecraft] K2-KAF2 up and running > I build my KAF2, and it works -- amazing since I don't think a single > kit I've ever built worked the first time I tried it ... well except the > K2 and KX1, both of which worked first try. Now, I just have to figure > out how to use it on the air. > > 73, > > Fred K6DGW > - Northern California Contest Club > - CU in the 2008 Cal QSO Party 4-5 Oct 08 > - www.cqp.org > _______________________________________________ > Elecraft mailing list > Post to: [email protected] > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
