Icom ISL-P25ARC4
ARC4 (Advanced Digital Privacy) License
The ISL-P25ARC4 encryption license requires both the UT-134 + ISL-P25AES to work. Order the ISL-P25ARC4 license for radios with AES already installed or new radios with the board and two licenses. It will not work without them
Item is an option and cannot be sold separately