Moto Radius SM120

emsbuff3240 · Post by **emsbuff3240** » Thu Sep 28, 2006 11:29 am

I saw that the SM120 UHF band is only 470-490!!

Can this radio be programmed out of band to 462/467 freqs?

n5tbu · Post by **n5tbu** » Thu Sep 28, 2006 11:50 am

Short answer...yes.
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kcbooboo · Post by **kcbooboo** » Thu Sep 28, 2006 11:53 am

The GM300, which is the same radio as far as I know, covers 403-520 MHz in four bands, depending on which RF board is in place: 403-433, 438-470, 465-490, 490-520.

The programming software will not let you go too far out-of-band. The RF board is optimized for the specific range. The VCO could be retuned but the front end would not work too well.

Find the HLE number on the RF board and let us know what it is. We should be able to find the band info from that.

Bob M.

emsbuff3240 · Post by **emsbuff3240** » Thu Sep 28, 2006 12:10 pm

So in other words... it wont work too well right? The lowest i am going is 462.550. I do not have the radio in front of me i am looking to buy one from someone and it is 470-490.

n5tbu · Post by **n5tbu** » Thu Sep 28, 2006 3:02 pm

Only way o know how well it will work,is to just do it! I had good luck bringing a 449-470 down to 430 with great receiver and tx specs.Seems like moto goes down much better than they go up in freq.
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RadioSouth · Post by **RadioSouth** » Thu Sep 28, 2006 3:14 pm

Too far of a stretch without modification and the GM based Radius radios are less forgiving than the M208,M216 types. Also being it's a 'T' band radio it might be a 12.5 spacing which would be another problem. If you haven't commited to it things would be a lot easier to get a radio to match your frequencies. (That mentioned 449-470 radio sounds like a Maxtrac).