My radar screen still reads the echoes, but the screen gradually became full of
snow. Also, when the set is first turned on and warming up, it stops my VHF
from scanning and the squelch cannot filter it out on any channel. As soon as
the radar is "ready," my VHF starts scanning again. My open array antenna
spins, and even with the screen full of snow, I can still read the echoes.
Anyone know what's wrong and is it worth fixing. It a 12 year old Raytheon R21.


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