Right on regarding CFL vs. LEDs on the newer display units. For reference, my E80 would use 1A in night mode and up to 3A in daylight mode. It can add up. Plus, the new units are physically smaller, so will be less imposing at the helm
That being said, the C120 is a great unit and it would be expensive to replace all the functionality. You will need a new radar, AIS, interfacing to the autopilot
You either go cheap
, used analog radar from eBay, AIS/VHF combination that you can feed to the C80 via NMEA 0183
or you replace everything.
One consideration is that the Classic
C/E units accept AIS only via the NMEA 0183
input. So you should either stay NMEA
0183 or if you upgrade, move everything to 2000. Basically, you are looking at $6-700 to add to the old system or $2-3,000 to upgrade. The value of your C120 is around $500 on eBay.
If you start the upgrade process my sincere advice is to look at the autopilot/MFD combination first, then try to stay with one vendor. For example, if you stay with a single
vendor you could do cool things like when you see a ship on AIS, you can press a button and route
call via DSC
to the ship. This typically does not work across vendors, then you have to input the MMSI manually and it can get stressful.