15A will be more than enough. Spec’s probably say max 12A or 13A draw on high power. It’s likely much less than that. I’ve got a VHF, 25w XPR-5550 that draws a bit over 4A on high power. A 50w rig in theory should be around double. You may even be able to get away with a 10A Fuse if you have a properly matched antenna
Page 4 of the CS800D has the specs, but they are all over the place. Here is what it says -
- "Recommended current capacity of the power supply is 14A or more"
- The radio is fused at 15A
- The DC power cable inline fuse is 20A
- There is another statement on p. 4 that reads, "For your transceiver to fully exhibit its performance capabilities, we recommend using the power supply could output 23 A, 25% duty cycle."
The radio definitely draws less power when in DMR transmit than FM analog. However, I have mine operating in a 15A fused socket and have had no trouble whatever with blown fuses.
Yes, the manual gives two different power supply recommendations and lists two different fuses. The published specifications for the radio should list the power supply requirements in terms of voltage and current.