[AMRadio] Ranger w/D104 Mic

[Rob Atkinson]

The Ranger probably doesn't need the preamp if the mic has one in the
base.  you could bypass that I think.  Is the preamp powered by a
battery?  Check the battery if it is.  Connect the audio leads from
the mic to a vertical input to an oscilloscope and adjust the v/div to
a low voltage and see if there's an audio signal on the scope trace.
That's one way to test a D104, at least it works with a high Z xtal or
ceramic element straight through.  never dealt with one of those
amplified D104s but worth a try.

73

Rob
K5UJ

On Sun, Dec 30, 2012 at 2:45 PM, Rsauvan <rsauvan at beyondbb.com> wrote:
> Hi all,
> I have been trying to get my Ranger on the air for quite some time to get on the AM mode.
> I cant seem to get my D 104 microphone to work. I am trying to keep it simple and just
> use the 2 wires for the 2 pin plug on the back of the radio. I have a green wire which I have
> to ground and the yellow wire which I am assuming is the hot side of the mic. I put the radio
> into "phone" and talk into the mic but meters dont move, it doesnt appear to be putting out
> audio. I adjust the "audio" control and that doesnt seem to be doing anything either.
> Am I missing something here? Do I need to hook the amplifier circuit back up in the mic in
> order for it to drive the rig?Any suggestions would be greatly appreciated. CW seems to be
> fine.
>
> Thanks-Bob-W0YBS
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