Does anybody know what freqs. the balloons and tracking units use? I will be attending this event and wondered. Never tried to monitor any activity. I heard they may use FRS radios.
I heard some Balloon to Chase vehicle activity on the VHF bands. Check the MURS and VHF no-license 2 watt freqs. All the ground crews had VHF antennas on the vehicles.
154.600
154.570
151.955
151.625
Also check out this link. http://www.bright.net/~wbowery/balloon.htm
I couldnt find anything on the regular AM air freqs.