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APX8500

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Spaniard71

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I've been finding that APX8500 mobile radios in a vehicle when stacked very close together are coming back with the reference off by as much as a whole 1 MHz
anywhere from 500 Hz to as much as 1 full MHz
Yes they have not been aligned in over 3 years but is that normal?

It seems to only happen when vertically stacked together by about half inch spacing.

Wondering if being so close would interfere with each other. Regardless they all have the same problem, and in case you're wondering my service monitor is calibrated and software/firmware up to date, does not happen with other mobile radios using same service monitor.

Your thoughts would be appreciated:)
 
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jpb

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This may not apply to you, but we have observed that APX8500s have a tendency to get out of alignment when there is a wide difference between the CPS version being used and the firmware in the radio.
 
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