Operating Frequency and Compatibility

transceiver
All transceivers post 1986 should operate on the same frequency, making them all compatible with one another.

The operating frequency of a transceiver is the frequency at which it emits and detects signals. All modern transceivers will operate at the international standard of 457kHz, essentially meaning that they are all compatible with each other. If you have an ancient transceiver (pre-1986), check it uses the 457kHZ frequency or can it and get a new one.