Excellent business journalist Dana Blankenhorn says a ruling is expected from the FCC real soon now that will clarify MBOA’s legal status. The main issues is that MBOA uses frequency hopping to reduce emissions in each frequency band by lower duty cycle. The FCC has a hard time measuring frequency hoppers because they have clunky equipment, so they request FH be turned off for emission measurement purposes. This is trouble for MBOA because they only do FH in the first place to please the FCC. So it goes ’round and ’round.
The MBOA system is better than the Freescale DS-UWB because it can be tailored to operate in different regulatory domains where various services have to be avoided by the UWB transmitter – it divides spectrum up into chunks that can be enabled or disabled. DS-UWB is all-or-nothing, a simper design but illegal outside the US.
If the FCC requires MBOA to turn off FH and flunks them on account of it, we can look forward to a world where there is one UWB standard for the US and another for the rest of the world.
That would not be cool, of course.