Bulletin: KW7900 Vendor: Kenwood Subject: Th-79 mods The Kenwood TH-79 can Rx From 67 - 179.995 MHZ - 400 - 511.995 Tx From 136 - 179.995 Mhz - 400 - 511.995 Take the Rig apart by removing the three screws on the back remove the antenna.. Remove the screw for the side under the Speaker/Mic/Power jacks rubber cover.. Remove the CTCSS access cover Squeeze the bottom side panel where the battery inserts to release the locking hooks.. Separate the two halfs of the radio Locate and remove Diodes D304 & D307 ( Located on back of front panel).. Reassemble the radio and reset the microprocessor .. Thats it..