K3 - new hand mic

[Bill-3]

My Shure 514-B arrived and has been installed. On the air reports
indicate no audio difference between this one and the Elecraft MH2. That
is good, as I always garnered great audio reports using it. Of note, in
this new microphone, both the PTT and mic circuits are switched, so
there is NO mechanical switching noise going out on the airwaves. The
Shure is a heavy little guy, surprising for its size. I rather expect
this mic will outlast me.

Thanks to those recommending this little mic. It was good info.

Bill W2BLC K-Line

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[KK5IB]

Bill,
Could I ask how does the MH2 mike compare to the 514B in level setting? Also since I did not wire pin 6, the voltage for condenser mikes, there should be no need to turn that off in menu. I had to turn my levels up in the K3, but not so much in the K2. Any relative comments appreciated.
Darryl, KK5IB

[Don Wilhelm-4]

Darryl,

You will still have to turn off the bias in the K3 menu.  The bias is
applied to mic pin 1 (the AF signal), not pin 6.
If you are using that microphone with a K2 that is wired for bias, you
will have to remove the bias resistor from pin 1 - remove the left side
panel and lift the resistor from mic jack pin 1.  You can leave the
other end of the resistor in place in case you ever need to reattach it.

Since you have bias still set on, that would be applying a voltage to
the dynamic mike element and could reduce its output level. Remove the
bias and check the mic level again.

73,
Don W3FPR

On 4/15/2015 11:42 AM, KK5IB wrote:
> Bill,
> Could I ask how does the MH2 mike compare to the 514B in level setting? Also
> since I did not wire pin 6, the voltage for condenser mikes, there should be
> no need to turn that off in menu. I had to turn my levels up in the K3, but
> not so much in the K2. Any relative comments appreciated.
> Darryl, KK5IB
>
>

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[Bill-3]

I turned the bias off, as I had been using the HM2. Then I increased my
MIC to 45 from 35 and CMP from 20 to 25. Using the scientific process of
using the mic for several days before asking anyone about audio changes
to my signal, I operated as normal. No comments were heard during that
part of the test and when I announced I had made a change, all agreed
that it sounded the same as before - this is a good thing in my opinion.

No changes were made to the TX equalizer from the HM2.

Bill W2BLC K-Line'
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