From my channel list, 155.160 is already in the OEM Rugged file. #12 or NARESC is 155.160, but no PL on trans/rec. This would be a good freq if you were lost and a search time was looking for you. A lifelight chopper also might also be able to communicate with us in the event that someone in our party needs a ride out someday. For this reason, I also have the three VHF CLEMARS channels programmed in my radios..... Pretty much any public service agency has the ability to switch one of those if there is a mutual aid operation. Maybe we should use one of those for our own private freq?