After you've done what Bill suggested, try setting the loss (dB) for this filter, using the K3 Utility program. I believe the equivalent filter loss is 3-4 dB. This would be normal. The K3 can compensate for it, as long as you set the value (otherwise assumed to be 0 dB).
Be sure the filter width and offset is set correctly. Easiest way is to use the K3 Utility program. 73, matt W6NIA On Fri, 26 Sep 2014 22:40:12 -0700, you wrote: >Off the top of my head: > >It sounds like the signal isn't getting through the 250 Hz filter when you >have it selected. > >Double check that it is installed correctly. > >Double check you activated the correct slot in the CONFIG menu. > >The XFIL button will allow you to switch filters without changing the DSP >bandwidth. > >Good luck Bill AE6JV > >On 9/27/14 at 9:29 PM, r...@m5ric.co.uk (Rich) wrote: > >> I have the 2.7, 1.8 and 250hz filters installed in FL1, FL2 and FL3 in my >> K3. >> >> Using the width I can change these filters and see the filter change as I >> get narrower. When I get to FL3 which has the 250hz filter, the noise level >> disappears totally and there is nothing on the S-meter. >> >> When on 0.30 BW there is about S3 of noise. >> >> This happens in any mode, CW or DATA. >> >> I have looked at the filter set-up using the K3 program on my pc and can't >> see anything. >> >> Could it be a duff filter or is there anything else I can check? >--------------------------------------------------------------------------- >Bill Frantz |"After all, if the conventional wisdom was working, the >408-356-8506 | rate of systems being compromised would be going down, >www.pwpconsult.com | wouldn't it?" -- Marcus Ranum > >______________________________________________________________ >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 >Message delivered to mzil...@roadrunner.com Matt Zilmer, W6NIA -- "Give me six hours to chop down a tree and I will spend the first four sharpening the axe." -A. Lincoln ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com
