Citizens Band (CB) radio - Equipment: Understanding radio specifications.

Antenna impedance.

This is the same among all CB radios, 50 Ohms.

Emission

This is the type of modulation used, which is set by law.
FM is allowed in the UK and Europe.
AM and SSB are allowed in America.

Modes

See emission, above.

Modulation modes

See emission, above.

Spurious emissions

The maximum figures for these are usually set by law, but lower levels are better.

The Radio:

Equipment:

Legal CB.
Beware.
Requirements.
Radio.
PSU.
Dropper.
Antenna.
Coax.
SWR meter.
Microphone.
RF load.

CB site