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800 motorola antenna on a 400 motorola radio?


Jun 5, 2005
Melbourne, FL
Ok I hate to even ask this...

Is it safe to run an 800mhz 9cm HT antenna on a 400mhz radio that has a different antenna but is still 9cm long? Same hookup - just different antenna but same length.


More Info Coming Soon!
Premium Subscriber
Jul 18, 2014
Use an antenna designed for the band you're using. Physical length doesn't mean a whole lot, an antenna can be much longer electrically than it is physically.


Oct 30, 2019
Jon above could not have said it better. Antennas are designed for a "band" or in other words, a frequency range. The physical size doesn't matter so much for that. But the size will effect the "gain" of the antenna - The bigger the better.