On Jan 18, 12:57*pm, "Dan Marotta" wrote:
It was about 4 deg-F at 17,500 MSL in the wave yesterday when the display on
my MicroAir 760 radio went blank. *I confirmed that the radio still worked
by switching channels to AWOS, one click to the left, and receiving the
airport weather report. *I couldn't tell if the transmitter still worked
since mine was the only aircraft in the air at the time.

I forgot to check after putting the ship away if the display had returned..
Is this normal behavior?

Microair specify the operating temperature range as -20 to +55 C - you
should have been within that.

Mike