3. COMMUNICATION WITH MOBILE UNITS - PROCEDURES & EXAMPLES

3.1 GENERAL

The station identifiers will be "HEADQUARTERS" and "CUMBERLAND MED" as assigned to the talk group It will be used when communicating with mobile units and by all mobile units when calling.

3.1A Under normal conditions, it is not necessary for mobile units to call and await acknowledgment before transmitting routine messages. However, when radio traffic is heavy, or in advance of sending a lengthy message, it is preferable to make a preliminary call and await instructions before proceeding.

3.1B The word "OKAY" will be used only to signify acknowledgment, i.e. that a message has been received and will be complied with.

3.1C Mobile radio units will use complete identification for ALL transmissions made by that unit. For example: "Engine 1-65," "Ambulance 65," "Car 65." The use of only numerals to identify a mobile unit is an unauthorized procedure. Such transmissions as "65 Read" or "65 OK" are incomplete, incorrect and shall NOT be used.

3.1D When responding to alarms, all units must make sure that Headquarters or Cumberland MED acknowledges your unit as responding. Each and every unit or company should be placed responding either by itself or by a single unit advising which units are responding. If, after two attempts no acknowledgment is received, it may be assumed that there is radio equipment trouble. Therefore, after arrival on-the-scene, another radio unit should be used to advise of your status and that your radio is not operating.

Transmissions between units and/or base stations will be done by the unit calling first and identifying the unit or base they are calling and then identifying themselves.

EXAMPLES:

1. Headquarters Engine 1-65 on-the-scene.

2. Cumberland MED Ambulance 1-65 available.