Reduced noise components with the narrower channel bandwidth improves receiver sensitivity making it possible to transmit at reduced power, which conserves battery life and potentially prolongs radio use time.
The manufacturer of a competing TDMA system claims 40% improved battery life in digital mode, as the radio is transmitting only half the time
(i.e. one time slot).Whilst only market feedback will prove this true or false, to date we have not been able to find any figures on actual transmit power consumption in
public literature to make any accurate judgments on this claim. As such, the user cannot calculate if there really is any improvement in digital mode battery life. As explained in “Coverage”,
in the FDMA system, reduced noise components with the narrower channel bandwidth improves receiver sensitivity. Therefore, it could be possible to transmit at reduced power, which in turn conserves battery life and thus can prolong radio use time.