Power FLARM power

Can anyone comment of why Power FLARM transmit power appears to be
much less than the transmit power allowed by FCC for this class of
FHSS device? (ref test report on file with FCC)

Is this a limitation of the RF module that was selected? Was it to
increase battery life? Was it expected that adequate range would be
achieved with a very low power level?

Does the brick have the same transmit power as the portable?

Andy