My narrowest filter is 2.8, if that has anything to do with it. Dale, k9vuj
On 06, Nov 2010, at 10:38, dalej wrote: > Yes, I was using the shift control. I reverted back to 4.17 and all is ok > again. > > Dale, k9vuj > > > > On 06, Nov 2010, at 8:22, Nate Bargmann wrote: > >> * On 2010 06 Nov 06:15 -0500, dalej wrote: >>> I just loaded this beta version 4.18 and now I get loud crackling from the >>> speaker when tuning though the APF filter, also, the audio goes away. I >>> uploaded the firmware though the P3 twice, once power on P3 and the second >>> time power off with the same results. I will next try loading the firmware >>> directly into the K3. If I have the same result, I will then revert back >>> to the previous version, beta 4.17, which worked fine including the power >>> out. >> >> I take it you are tuning the APF with the SHIFT control? >> >> Ouch! I just replicated your issue on my K3! Once I tuned the APF >> above 1 kHz the crackling begins. During this time the APF function >> disappears and with each step on the display a loud CRACK! is heard in >> the speaker. Once I tune the APF below 270 Hz the CRACK! goes away and >> the APF is restored. >> >> At 1 kHz I hear a loud POP! and then the CRACK! occurs for each step as >> the knob is advanced to the right although the displayed APF frequency >> remains at 1 kHz. At 270 Hz I hear a BOOP! and APF is restored. I've >> done this several times as I've typed this message. When the APF is in >> the crackle mode, turning it off and then on does not change the crackle >> state, in fact more crackle is heard upon reactivation. Powering off >> the K3 while in "crackle" mode kills the crackle and APF resumes its >> function. >> >> I am running MCU 4.18, DSP 2.67, and FPF 1.14 on K3 #4762. >> >> HTH, >> >> 73, de Nate >> >> >> -- >> >> "The optimist proclaims that we live in the best of all >> possible worlds. The pessimist fears this is true." >> >> Ham radio, Linux, bikes, and more: http://n0nb.us/index.html >> >> >> ------------------------------------ >> >> Yahoo! Groups Links >> >> >> > > > > ------------------------------------ > > Yahoo! Groups Links > > <*> To visit your group on the web, go to: > http://groups.yahoo.com/group/Elecraft_K3/ > > <*> Your email settings: > Individual Email | Traditional > > <*> To change settings online go to: > http://groups.yahoo.com/group/Elecraft_K3/join > (Yahoo! ID required) > > <*> To change settings via email: > [email protected] > [email protected] > > <*> To unsubscribe from this group, send an email to: > [email protected] > > <*> Your use of Yahoo! Groups is subject to: > http://docs.yahoo.com/info/terms/ > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
