Jim,
I assume the microphone is a computer type, and that means it has an
electret element.
That mic need bias voltage. Did you turn on bias in the Mic Select menu?
73,
Don W3FPR
On 11/12/2014 9:15 PM, James Bennett wrote:
Need a little help on this one. I have an inexpensive mic/headset that has a
three connector plug (TRS). If I plug it into the Mic jack on the KX3, it works
fine, although I have to use VOX, which, having an 18 month old in the house,
is not a good choice! I've only made a few SSB QSO's (I'm primarily a CW op),
but audio reports I get lead me to believe this mic is acceptable.
OK, while on CW I don't always like using QSK. So I built a small PTT switch
that has a momentary button and an on/off toggle switch. I plug this into the
mic jack. It has a four connector plug - TRRS. My switches short ring 1 and
ring 2 together. Works great.
When I decided to try some occasional SSB, I had the problem of only ONE mic jack. So, I
purchased an "octopus" connector. It has one TRRS male plug and three female
TRRS jacks. I plug my headset mic into one jack and my homebrew PTT switch into another.
When I'm on CW, all works fine - I press the PTT, the KX3 goes into transmit and I send
CW with my paddle. But on SSB, things no longer work. If I put the KX3 into VOX, that
works. If I put the KX3 into PTT mode and press my PTT switch, the radio goes into
transmit, but speaking into the mic produces no audio!
I put my VOM on the octopus leads. They are all as they should be - straight
through on each connector - nothing cross connected. I've tried it with MIC BTN
set to OFF and PTT. Neither makes it work.
What do I have set wrong that's causing this strange behavior?
Jim Bennett / W6JHB
Folsom, CA
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