Icom IC-746 (IC 746 IC746) transceiver mods reviews software and diagrams

For setting the RECEIVER TOTAL GAIN.

• Part 1 follow as written.
• Part 2, set R761 for 178mV (-15dB).

This gives a better(lower) AGC knee signal level and during weak signal reception maintains good volume level without having to manually advance the volume control. This is especially useful for Six and Two metre weak signal work.

The noise blanker, general AGC action and S meter calibration were not adversely affected.