The IC-745 is a very good performer for its day and for now.
Two things could be done to improve the radio and bring it up to date.
Replace the radio's controller subsystem.
1. Eliminate the Matrix board, this board manages much of the front panel digital operations and supports the scan function.
2. Replace the logic board with on board support for the front panel digital functions, and an 80 column display.
A. Upgraded display that will support multi line data display.
B. Upgraded synthesizer buss supporting a VHF DDS usable to 1HZ increments.
C. Provide CAT interface with an instruction set compatible with the IC-756, allowing use with HRD. (Ham Radio Deluxe)
D. PTT delay for safe amplifier operation. (for those who may not know this radio and other radios of its vintage are known for generating large RF spikes during T-R and R-T transitions. )
E. On board keyer.
The other issue that would add value to the radio was touched upon above. Replace the PLL board with modern DDS.
While we are at it, a second LO upgrade would be in order.
![Smiley :)](https://www.eevblog.com/forum/Smileys/default/smiley.gif)