Primary - Guard (plasticized at radio position)

This is how the radios are when you leave the radio room and when you enter.

(all ready to go on the Primary - Guard frequencies and volumes set)

Secondary - Backup (located in the station manual)

Other frequencies that might be required during an activation.

Local Authority - Simplex (located in the station manual)

A list of frequencies in the local area. 

Note: All frequencies have transmit tone of 123.0 Hz

[If you get interference you can turn on RX tone of 123.0 Hz]