well i got my rh77ca today and have been testing against my other scanners and antennas since its arrival, on the low band, it doesnt do that great, it does better then stock, it does a little better then the radio shack telescopic antenna, but it doesnt even come close to my antenna designed specifically for low band, it does incredible on vhf hi and uhf, and on the 800mhz it does almost as good as the my stock psr500 antenna, the radio shack 800mhz antenna is still much better for that, but if you want an antenna for low band specifically, this is not the one for you