[Elecraft] K2 Transmit

[Don Wilhelm]

Aaron,

Your K2 was tested with an Elecraft MH2 microphone which needs bias 
voltage.  That Kenwood microphone is a dynamic type which should not 
have the bias voltage applied.
Remove the left side panel and lift the end of the resistor soldered to 
pin 1 of the microphone jack.

Since you have bias on that dynamic mic, it is probably distorting and 
may be the reason for your 'no replies'.

Look at the LED bargraph as you talk.  How many LEDs are illuminated on 
the peaks?  Those LEDs indicate the power output of the K2, and each one 
is about equal to 1 watt for a QRP K2, 10 watts for a K2 with the KPA100.

73,
Don W3FPR

On 1/7/2016 6:29 PM, Aaron Scott wrote:
> I'm not sure if something is wrong or its my lack of experience. I just got
> my K2 put together and sent it to Don to do some repairs and align it. Don
> got it working good. I then got a Kenwood MC-43S microphone and hook it up
> like Don told me to. I still have not been able to make a single contact
> with it. I am using a inverted V dipole at 25 feet with a SWR of 1:1 across
> the 20 Meter Band. The receive on the radio is awesome and I try to answer
> CQ calls and get no reply, same as when I call CQ. I'm not sure what else
> to check.
>