All the car antennas i've seen that need power require 12v DC
I have been looking around for a while to solve this issue but maybe I am not using the right keywords or something.
I plan to use the Dabby DVB,DAB+, FM USB tuner. I plan to plug this into factory antenna, which is an amplified antenna. I have all the necessary plugs/cables to convert from OEM to RF.
The question is, can I just hook the antenna power cable to 12v DC or do I need to hook it up to 5v or something?
Usually powered from "aux power outs" on radios else the ACC position (or whatever...). Some or most radio antenna (controller) circuits are also suitable - ie, those supply +12V to extend the antenna and later cut the +12V to retract it. (Older ones are often just a pulse to release older "latched" or locked-down manual antennas etc.)
And AFAIK those amps are usually low Amps. The one I had one (last millennium) was ~10mA; the equivalent of one, or a half, LED.
You need power inserter and a 12v - 5V power supply. Google for konig power inserter.
FIY, Iím using a powered aerial; the supply of course is for powering the RF preamp located inside the base of the antenna.
The aftermarket DAB, FM, AM unit I fitted takes 12v to 24v. I connected mine to the ACC line.
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find the antenna power wire and hook it up to a switch power wire and call it a big fat day
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