Why am I able to hear multiple conversations on multiple channels from my car parked in the driveway but not from my house, when my house antenna is much higher (about 25 ft)? Both radios are the same and programmed the same way. The antenna on my car is the Luiton 32” Whip Antenna for GMRS and the one on the roof of my house is Ed Fong's DBJ-UHF GMRS base station antenna.
I transmitted via channel 7 (simplex) and communication was clear in both directions. I tried swapping the radios, and again the radio in the car picked up multiple conversations, but nothing was being picked up from inside.