UHF MaxTrac deviation control below 440MHz?

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d119
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Joined: Tue Mar 19, 2002 4:00 pm

UHF MaxTrac deviation control below 440MHz?

Post by d119 »

I searched for this subject, while it's come up in the past there were no definitive answers.

I have some MaxTracs that are 449-470MHz models and I'd like to use them around 438-440MHz. There appears to be NO deviation control below 440MHz, and the thing runs wide open. Even with the deviation softpot set at 0, I still get over 5.5kHz of AF deviation out of the radio.

Anyone ever come up with a fix for this?
Will
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Joined: Tue Sep 04, 2001 4:00 pm

Re: UHF MaxTrac deviation control below 440MHz?

Post by Will »

There is NO firmware provisions for control of the deviation, compensation or power control below 449 mHz.
wa6jbd
Posts: 63
Joined: Sun Jul 15, 2007 6:46 am

Re: UHF MaxTrac deviation control below 440MHz?

Post by wa6jbd »

Chris, I think the solution to that winds up removing the softpots and replacing them with a small PC mount potentiometer, and the levels get set the good old fashioned way.
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d119
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Re: UHF MaxTrac deviation control below 440MHz?

Post by d119 »

Mel,

OK. That was going to be the next step. Thanks!
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