Please note that the use of RF Amplifiers is not legal on CB radio in the UK.
These are for use only by licensed radio amateurs or in countries where their use is permitted.
RF amplifiers (also known as boots, burners, kickers, help etc) boost the output power of your radio - so increasing the transmit range.
All amps have a maximum and minimum power which they need to drive them. If used on a radio with too high output it is likely the amp will be damaged.
You must ensure that your antenna is correctly tuned before fitting an amplifier. If the swr is high it will damage the amplifier, blowing the output transistor(s).
In all cases the output stages of amps are not guaranteed - this is because they can be so easily damaged by high swr etc.
Select one of the sub-departments on the right