Motorola III operating instructions Transmitting

19 Basic Radio Operation (cont.)

Transmitting

Conventional Modes

1.Turn the radio on and select the desired zone and mode (see “Selecting a Zone and Mode”).

2. (SECURENET-equipped radios only). If the mode is
programmed as neither secure-only nor clear-only,
turn the two-position concentric switch to the		A
desired postion (	= SECURENET voice
		B

transmission; = clear voice transmission). C

3.Listen for a transmission and adjust the volume control for a comfortable listening level. Refer to step 2 of “Conventional Modes,” “Receiving a Call.”

4.Do not interrupt another user. If the mode on which you are transmitting is programmed to receive PL ( or the proper code if SECURENET- equipped), ensure that the mode is not in use by momentarily depressing the monitor button to listen for activity. If the mode-busy feature is enabled, a blinking red LED on receive (PTT released) will indicate that the mode is currently busy and you should not transmit.

Note: The mode-busy feature is suggested for SECURENET-equipped radios, since monitoring of SECURENET activity with a different key will sound like noise that is nearly indistinguishable from channel noise.

5.When the mode is clear, press and hold the PTT switch on the side of the radio and speak slowly and clearly into the microphone area. The red LED will be lit continuously while the radio is transmitting. When you have finished talking (transmitting), release the PTT to listen (receive).

Notes:

•If a mode is programmed for receive only, any attempt to transmit on that mode will cause an invalid-mode tone to sound until the PTT switch is released.

•To take full advantage of the noise-cancelling feature, avoid blocking the noise-cancelling port during transmitting.

LED, red

11	13
9	15
7	1
5	3