all models in the hmo3000 series with 300 mhz or 400 mhz can be extended via software upgrades to 500 mhz bandwidth whenever required:
- bandwidth upgrade to 500 mhz for hmo3042 (400 mhz, 2 channel): option hoo452
- bandwidth upgrade to 500 mhz for hmo3044 (400 mhz, 4 channel): option hoo454