Check the specs of your new Radar (radome) choices... Solid state is what you want. No moving parts inside, lower power consumption, better radar picture quality. Im not certain but I think they basically use Cat 6e cable which includes 12V PoE (power over ethernet), so basically at least one strand of the 6 cable strands in the group provides 12V DC to the Radome. I'm not in the market for a new one so I haven't looked closely at what's available, almost all my Radar experience comes from the US Navy and the massively powerful SPY 1 array on my two DDG's. I did install a commercial FURUNO radar on my last ship (we use commercial radars for deception), and the dome only used a CAT5 cable connection with no separate power cable that I recall. The unit did come a 50 ft cable, it did not seem to be anything special or 'Marine Grade'. In the future when I buy a new electronics group, my biggest interest is in SIMRAD/Navico forward scanning sonar, soI'll want to buy my other components to work with that family group. I also really like the Vulcan Chart plotters.