Modifications for the ICOM - RogerK

A friend did this and his IC-2GAT can now transmit 138 to 178 MHz (no RF power output measurements were made). He did noretuning, and did not have to reset the CPU. He used a tiny axial-lead glass diode, replaced its leads with wire-wrap wire, andencased it in shrink-tube. The operation requires a super-tiny soldering iron. Observe CMOS soldering precautions: Unplug theiron and ground the tip before touching the circuit.Remember: Except for MARS and CAP, it is illegal to transmit outside the ham bands with non-type-approved equipment.This modification is read 1076 times.top of page19-07-1998(IC-2) IC-2AT, If transmit RF indicator notwork properlyModel:Division:Note:IC Micro 2ATAmateurThis service bulletin is meant for technical personnelwith experience working on solid state communicationsequipment. Damage caused by improperlyinstalling this modification may causeICOM to charge for subsequent repairs to theproduct. ICOM does not warrant this modification.Bulletin #: 8988-002Date: March 29, 1988Subject:If transmit RF indicator is not reading properlyProcedure1. Disassemble the radio to gain access to the RF Board.2. Replace the following parts on the RF Board:Reference Original New ICOMDesignator Value Value P/NQ309 2SA 1162 1SS 196 912-00965D309 1SS 211 2.2Meg 1/8WR345Remove this partC349Remove this part3. Reassemble the radio.This modification is read 990 times.top of page19-07-1998(IC-2) Icom IC-2GXAT open RX>David, For the IC-2GXAT receiver opening do the following steps as listed.>>1. Turn off the radio>>2. Press and hold the " Function, Scan and Dupe keys ">>3. While holding those keys turn on the radio.>>4. WAIT until the display returns to normal then continue to hold the> keys for about 2 seconds> after the display has returned to normal before releasing the keys>>5. The receiver is now opened up and will cover 138 to 179 Mhz or so.> It WILL NOT do aircraft AM receive nor tune into that frequnecy range.That's an interesting note. I recently did this to my rig (Purchased last may, low serial number) and it receives from about