Batboard

D45-B7 Maxtrac, can i make it a "straight" 800 cnv. radio ? I want to make it " act like a VHF/UHF M-Trac. I'm thinking pull the trunking firmware chip swap it with a conventional chip then lab the 800mhz. info into it ? am I waisting my time thanks, RF-addict

1. Make sure the radio works OK.
2. Record the tuning values.
3. Blank the logic board.
4. Change the firmware from trunking to conventional (Monte may have some chips for sale)
5. With the regular RSS go to Service - Board Replacement - Logic Board.
6. Tell the RSS which model you are creating.
7. Either re-enter the saved alignment values - or - (preferably) if you have test equipment - realign the radio.

But the one thing everyone tends to forget is the 851-870 Mhz bandpass filter in the receiver front end. *IF* you have the talkaround RF board, it can be made to think it's a conventional maxtrac but only in the 851-870 Mhz range. Unless you perform a hardware modification to allow the rx front end to pass 806-825, you'll only be able to tx in the low range.

Good point on the RF board.

Obviously, it doesn't matter if the intended use for the radio is to talk through a conventional 800 MHz repeater. If direct radio-to-radio (talk around) is desired in addition to or instead of repeater operation, the right RF board is required.

Non T/A RF: HLF4095

T/A RF: HLF9122