----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- I recently installed a Microair T-2000 transponder
along with a Com 760 in my G model. The com works great, but the
transponder gave me problems from day one. It would work perfectly, but
only for about 10-15 minutes. Other problems followed. I sent the
unit back to Microair, which was an experience in itself, since they are in
Australia and have no service facility in the US. After a 16 day wait, I
got the unit back. I installed it and experienced the same problem.
I requested that they send me a new unit, which they did. After
installation, it too developed the same problem. Microair and I have been
in constant communications with regard to the problem. I have checked,
double checked and triple checked the wiring, finally pulling the harness for
the encoder out and resoldering each connection. It is O.K. Heat has
been discounted. The unit operates with voltage from 10-33 and is
impervious to spikes, low or high voltage. It seems now that the 2
microprocessors are not talking to each other after so many reply signals are
received. The unit apparently goes into overload and locks up.
After a while (15 minutes or so) if the transponder is recycled it will operate
properly until it, again, overloads.
Microair has been very cooperative in trying to
solve the problem. I just wondered if anyone else has experienced the same
dilemma. If I can get the unit to work, I really don't want to
replace it with another brand since it is one of the rare transponders that
will fit in the panel and clear the header tank.
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