Is it possible that your narrow filter has cut off the desired signal? Make sure your CW pitch is reasonable and you've tuned a little bit for the signal with the narrow filter.
If your CW pitch is different from where you're listening at a wider bandwidth, the signal can disappear when you tighten the bandwidth. I'd recommend tuning in a steady carrier with the CWT and/or spot buttons, and then narrow the bandwidth. If the CWT doesn't center at a comfortable pitch (this is a personal preference), adjust it by entering CW mode, HOLD the Pitch button (it's labeled "Spot" for its tap function) and rotate VFO A until you get a pitch you like. I prefer about 400 Hz, your preference may be different than this. Also make sure that the Filter Configuration has the filters enabled by mode. The K3 Utility's Crystal Configuration Dialog can be used to quickly view the filter configuration, it's available by clicking the "Edit Crystal Filters" button on the K3 Utility's Config menu. I understand that you may have tried all this... Dick, K6KR -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of W5UN Sent: Monday, November 17, 2008 9:23 AM To: [email protected] Subject: [Elecraft] Filter questions I will ask here before calling Elecraft. First, I have the following filters installed on the main rcvr, all 8 pole: 6 Khz, 2.8kHz, 1.8 kHz, 400 Hz, 250 Hz. There are two issues: 1. When I turn my 250 Hz filter on in config, and then select that filter (which is FL5 here)I can hear noise coming through but no cw signals come through. I can see the signals on my PowerSDR/LP-PAN setup and CW Skimmer. Signal comes through all the rest of the filters O.K. Yes, I opened the radio, and all the filters are installed. 2. I run CW Skimmer with my K3. When I change filters, the CW offset signal shown on CW Skimmer changes. I thought the 8 pole filters had no offset. Is anyone else experiencing this? Any comment appreciated. Dave, W5UN _______________________________________________ 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
