between the xmit pin & ground. The pin should be 'high'
meaning probably 12 Vdc until you push the xmit button. Then
it should drop to 0 volts while the xmit button is held. If
it doesn't change states from high to 0, then move your
meter to the switch. If there is NOT a high there WITHOUT
the button pressed, you have a break in the circuit between
the radio's xmit pin & the switch (be sure to measure both
sides of the switch; only one side should be high). If you
have a high there with the button pushed, then either the
switch is bad or the wire from the other side of the switch
isn't making it to ground. At this point, you need to change
the measuring procedure. If you are still stuck, email me
off line & I'll supply more detail.
Charlie
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