K3 MH2 Mic Problem

[VK1DW]

My K3 has an internal 2M module which is working very well.  However since
installing the 2M module some two weeks ago I have a mic/power problem on
the HF bands.

When keying the mic on 2M I see a 10 W reading on the power barograph and
the power reading in the VFO B area is 1.01 Mw which is what I would expect.
Switching to a HF band and keying the mic I see one bar on the power
barograph and 60 W in the VFO B area which is my power setting.  To generate
power out - more than one bar - I need to hold the mic almost in my mouth
and at an angle so the top of the mic is nearer to my lips. However
generating power out is inconsistent.
Mic gain is about 56, compression is 5, MIC SEL is FP.L BIAS.  I have the TX
EQ set to reduce the base and slightly increase the treble frequencies.

What is wrong?  Appreciate any ideas.


Deane
VK1DW
K3 #3940


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[Jeff Cochrane - VK4XA]

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[Don Wilhelm-4]

Deane,

Something is wrong, a mic gain of 56 should produce lots of overdrive.
You either have a mic problem or a K3 problem.  Try another mic if you
can (trying another K3 may be more difficult :-) ).

73,
Don W3FPR

Deane Walkington wrote:

> My K3 has an internal 2M module which is working very well.  However since
> installing the 2M module some two weeks ago I have a mic/power problem on
> the HF bands.
>
> When keying the mic on 2M I see a 10 W reading on the power barograph and
> the power reading in the VFO B area is 1.01 Mw which is what I would expect.
> Switching to a HF band and keying the mic I see one bar on the power
> barograph and 60 W in the VFO B area which is my power setting.  To generate
> power out - more than one bar - I need to hold the mic almost in my mouth
> and at an angle so the top of the mic is nearer to my lips. However
> generating power out is inconsistent.
> Mic gain is about 56, compression is 5, MIC SEL is FP.L BIAS.  I have the TX
> EQ set to reduce the base and slightly increase the treble frequencies.
>
> What is wrong?  Appreciate any ideas.
>
>
> Deane
> VK1DW
> K3 #3940
>
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>  

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