Recently completed 4 week trip. We has 3 Sena units all new and using latest software. Communication between any two units worked well. Using group intercom was totally unsatisfactory, There was noise on the units ranging from a sound like someone tapping on a tin can to sound like someone was pounding on the can held net to your ear. At times the noise was so loud that I has to terminate the group intercom. The units generally work when we were standing next to each other or within a close distance. Starting at about 30 yards the noise was hard to bear. The noise was loud enough that in would override the radio is it was on. Any suggestions would be appreciated since the units are of little value in the group intercom mode.
Sena 20S Group Intercom Problems