The RSS for Maxtrac's is the same for any band.
But, if you get a Radius, then you would need RADMBL RSS, and if you get any of the GM-300 radios then you need the GM-300 RSS.
FYI, the Maxtrac Low Band radios come in three splits.
So make sure the one you buy is for the split (range) you need.
For example the 36 to 42 mhz one won't go to either hamband.