I have both Larson antennas one for a BC536 the other for a PRO 96, they both work on my areas FD 46.06 and 46.16. I am about 10 miles from the 46.16 dispatch and 25 miles from the 46.06.Is the only difference between the Larsen NMO's durablilty? And I know they both do vhf but they claim to start at 150mHz, is that to say that they can't receive as low as 40-105mHz?