[Elecraft] Audio problem in WPX SSB

[Andrew Faber]

Joe,
  Yes, I agree.  I tried Lyle's suggstion of turning off the ALC in the 
config menu, but that didn't help the situation.
  73,a ndy, ae6y
----- Original Message ----- 
From: "Joe Subich, W4TV" <lists at microham-usa.com>
To: <w3fpr at arrl.net>; <microham at microham-usa.com>
Cc: <elecraft at mailman.qth.net>
Sent: Tuesday, April 08, 2008 7:38 AM
Subject: RE: [Elecraft] Audio problem in WPX SSB


>
> Don,
>
>> Check Lyle's answer yesterday to similar questions.
>
> I read Lyle's postings faithfully.  I have checked them again
> and see no indication that the firmware under test deals with
> the "no output after DVK" problem.  The discussions center on
> certain radios that do not reach PEP even when showing normal
> ALC.
>
>> You can expect the firmware release to fix it in about a week
>> according to Lyle.
>
> In this case there should be no DC shift (microKEYER II is AC
> coupled for both DVK and mic) and no level difference between
> DVK (wave file) and mic.
>
> 73,
>
>   ... Joe, W4TV
>
>
>> -----Original Message-----
>> From: elecraft-bounces at mailman.qth.net
>> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm
>> Sent: Monday, April 07, 2008 1:18 PM
>> To: microham at microham-usa.com
>> Cc: elecraft at mailman.qth.net
>> Subject: Re: [Elecraft] Audio problem in WPX SSB
>>
>>
>> Joe,
>>
>> Check Lyle's answer yesterday to similar questions.  It is a known
>> problem and the fix is being field tested right now.  You can
>> expect the
>> firmware release to fix it in about a week according to Lyle.
>>
>> 73,
>> Don W3FPR
>>
>> Joe Subich, W4TV wrote:
>> >>   With the K3, the messages play fine, but after one
>> >> finishes, if I use the mic, the radio starts out at lower
>> >> power and takes 2-4 seconds to build back up to high power.
>> >> This is the same whether using the front or rear input
>> >> and whether using high or low gain.
>> >>
>> >
>> > I've noticed the very same thing with the microHAM microKEYER II
>> > and its software DVK.  I have not had time to further diagnose
>> > the issue and check it with other interfaces but it is quite
>> > pronounced.
>> >
>> > There is no difference if using FP.L or FP.H when the MK II
>> > output is adjusted for four to five bars of ALC.  Bias is OFF
>> > and the microphone output of microKEYER II is capacitive
>> > coupled (top and bottom) so there is no "DC effect."
>> >
>> > I will not have time to look at this issue further until later
>> > in the week.
>> >
>> > 73,
>> >
>> >    ... Joe, W4TV
>> >
>> >
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