Radius M400 Programming

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dwh558
Posts: 8
Joined: Tue Nov 06, 2001 4:00 pm

Radius M400 Programming

Post by dwh558 »

Does any one know how to program an M400 for the two meter band?

I can do most of it, but when it comes down to the lowest transmit frequencies, it will accept the freqs but will not transmit on them.

Freqs of 145Mhz or less will not transmit. 146 and above all seem to work OK.

Any thoughts?
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Max-trac
Batboard $upporter
Posts: 941
Joined: Sat Sep 08, 2001 4:00 pm

Post by Max-trac »

If you can program them, then the TX VCO probably needs a little tweak....
Does it RX OK down low? You might check that in case you need to tweak it also.....
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kb0nly
AKA: The Computer Doctor
Posts: 3370
Joined: Tue Apr 01, 2003 1:15 am

Post by kb0nly »

Max-trac is correct.

You need to monitor the steering line voltage and tweak the TX VCO coil. I had an M400 that did the exact same thing.
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