Subject: Yaesu Model FT-2500 Mod Frequency Expansion Modification Original Freq. Range: TX (144-148 Mhz) RX (140-174 Mhz) New Freq. Range TX (140-174 Mhz) RX (140-174 Mhz) This information is authorized for distribution only to individuals who are members of the U.S. Military Affiliated Radio System, Civil Air Patrol, or other government services specifically permitted, by the Federal Communications Commission (FCC), to use Non-Type Accepted equipment such as that utilitied in the Amateur Radio Service. Release of this information to individuals not bearing a license in the MARS, CAP, or other such government service is not authorized by Yaesu USA. 1. Disconnect DC Power cable from radio. 2. Remove Top Cover. (5 Screws, 2 on each side and one at center) 3. Remove piece of green color wire. (Between Jumper Pad #8 and ground) 4. Reassmble radio and hook-up power.