The is for engineers and advanced hobbyists. It assumes you own an oscilloscope, a signal generator, and a soldering station capable of surface-mount work. Here is what the owner’s manual won’t tell you, but the service manual will:

: 5W when using the internal BP-272 battery and up to 10W when connected to a 13.8V DC external power source.

: Provides in-depth instructions for features like Bluetooth, Wireless LAN, and D-STAR. CI-V Reference Guide