[Elecraft] [Elecraft_K3] New K3 Beta Release: APF for CW, "Fast Monitor" & improved TX gate for voice modes

[dalej]

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
>> 
>> 
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