Here's the wrench you need, and where to get it from:
This is the extended TX/RX mod for the new Icom IC-T70A:
Does anyone know if there is a keyboard mod for RX expand?This is the extended TX/RX mod for the new Icom IC-T70A:
Preliminary, disassembly steps
- First remove the battery
- Remove the two screws that are on the heat sink / case at the base of the radio that were underneath the removed battery.
- Remove the volume and control dials; they simply pull off.
- Remove the nut securing the SMA antenna connector. On my radio this nut was attached overly tight and was difficult to remove even with the proper tools.
- The entire radio board should now be able to be removed from the radio case
Turn the board so that the button pads are facing you with the LCD screen up. Toward the top left of the number pads, remove diodes D257 (UHF TX expansion) and D258 (VHF TX expansion). On the bottom right side of the board above the mount screw, remove D264 for RX expansion if it is present. On my radio this diode was already removed. See the picture below for details on the diodes to be removed.
After modification, the TX/RX range is:
VHF: 136.000–174.000 MHz
UHF: 400.000–479.000 MHz