Just set FL1 to "OFF" in the config menu Henry. That will stop the strange behaviour. BTW: FL1 should be the highest bandwidth and FL5 the most narrow IIRC.
73, Ad (pe1ftv) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, December 11, 2007 12:07 AM To: [email protected] Subject: [Elecraft] K3 Filter Switching Problem? Warning! K3 filter use item follows. Currently, I only have the standard 2.7 KHz filter in the FL3 slot on the RF board. I chose this location due to potential future additions of the 2.1 and 1.8 KHz filters, in slots FL2 and FL1 respectively. Here is what I observe: With FL3 manually selected via the XFIL button; when I try to rotate the Width control below a value of 2.7 KHz, the rig automatically switches to the FL1 position, which is empty. The receiver goes dead. When I quickly reverse the Width adjustment, FL3 is not switched back. I have to manually select FL3 again with the XFIL button. Once back in FL3, I can adjust the Width control to higher values above 2.7 KHz with no problem and the passband gets wider. Is this normal? I thought the DSP circuit would continue to narrow the passband even though the roofing filter is broader. But, why does it switch to an empty filter slot? Did I do something wrong during the Configuration setup? Is this a firmware issue? I have not downloaded the latest updates yet. If I had narrower filters in the FL1 and FL2 slots, then I would expect the circuit to auto-switch to those as I narrowed the passband via the Width control. And, they should switch back in reverse order as I widen the passband. Right? 73, Henry - K4TMC K3 #98 _______________________________________________ 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
