Dave,
Can you measure how much current is being drawn by the XV222? It sounds
like the resettable fuse is being tripped.
That could be either due to a fault or due to excessive heating of the
PA module.
The max output should be reduced for FM operation.
In addition - the XV222 was designed for the low end of the band, not
higher up in the FM portion. That means that the output Low Pass Filter
may be tuned for a cutoff frequency lower than where you were
operating. Should that be the case, excessive current and lower output
would be a result.
73,
Don W3FPR
On 6/1/2013 5:00 PM, Dave Glenn wrote:
I have an xv 222 transverter that will shut down after transmitting for
about a minute.
Using FM for testing. The front panel just goes dark and I need to power
cycle the k3 to get it back.
I am using a K3 to drive both 222 and 432 transverters.
Also, when going through the alignment process, R22 should be between .1 and
10 volts. When I adjust this the voltage will jump from about 7 to 18 volts.
I discovered it had been running at this higher setting and getting about 18
watts output. When I roll the voltage at TP5 down to the correct range I get
almost no output from the xvter.
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