H3rk Wow so many questions in one go
Three digit change can not be done with the software is hard programmed in the software of IC-C
All outputs are ground.
I dont understand what you want to do.?
These are gonna be made in batches of 20nos first batch is up for sale.
No the preset can not be altered as its hard coded in the Microchip. The software is just there to send commands to the unit not change any settings of the unit.
Current drawn shall be posted here and updated in the manual.
There are no mounting holes. Find a space and drill your own as per your needs. Thats why i kept this as a single side PCB.
All connectors are included with housing and pins. You will have to just make your own cables.
Phew .. any more questions