Maxtrac UHF question

[BrianBr]

In looking through the model number decoding for the Maxtrac radios, I found the UHF radios come in low and high split (403-430 and 449-470). Which one would be prefferable to use for the 440 HAM band, if they can be used in the first place? Thanks.

[Max-trac]

The higher split. It should go down into the 430s. You probably will have to tweak out the VCOs a little (counterclockwise, I think). I have never seen how high the low split will go (they are rare, I have only seen one GM300 lowsplit)

[PETNRDX]

I have used several of the Maxtrac/Radius/GM300 series radios for 6, 2 and 440. The UHF's are the easiest, as the previous post stated, you just need to adjust the SL (steering line) voltage with a VOM to keep the VCO's below about 7.5 or so. I have found a few that "touching up" or "fine tuning" the receiver coils will make them work better the lower you go in the Ham band. I have one at 436 and that's about the lowest they want to go with usable RX without modifications.

[raymond345]

Yes the high split with the new software
Ver. 7 works good. The lower split is
not good. Raymond
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