Emergency Button; Conventional Mode Features; Monitoring Before Transmitting - E.F. Johnson Company MULTI-NET II Quick Reference Manual

Fm two-way portable radio

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standard call is being made, and the dial tone is heard if a special call is being made. The call can then be placed in

the normal manner.

If no call is placed soon after the tone sounds, the queue mode is automatically exited and normal operation

resumes. The queue mode is also exited if a call is received on the selected group, the system/group is changed, the

push-to-talk switch is pressed, or any other keys directly under the display are pressed (while no call is being received).

Calls are received normally while in the queue mode. Group scanning continues if it is programmed on the

selected system. However, system scanning is temporarily disabled, so calls are not received on other systems. If a call

is received on some other group while in queue, you can respond to the call without affecting the queued call. Normal

queuing of a call resumes shortly after the call on the other group is finished.

Emergency Button

The red emergency button on the top panel can be used to place high-priority calls. It can be programmed by your

system operator for either manual or automatic operation:

Manual Operation - No call is placed automatically when the button is pressed. However, a specific system/group

is selected and the transceiver goes into a high priority access mode. This mode minimizes, as much as possible, the

chance that the system will be busy when a call is placed.

Automatic Operation - An emergency message is automatically transmitted when the button is pressed. This mes-

sage occurs on a specific system/group and is transmitted at the highest priority until an acknowledgment is received

from the dispatcher.

A tone sounds when the emergency button is pressed. In addition, this button is functional on all systems if it is

programmed (even conventional systems if there are any). It may be necessary to turn transceiver power off and then on

again to resume normal operation after the emergency call is complete. Contact your system operator for more informa-

tion on operation of the emergency button in your application.

Before transmitting in the conventional mode, government regulations require that you monitor the channel

(group) before transmitting to make sure that it is not being used by someone else. If you were to transmit while

someone else was talking, you would probably disrupt their conversation.

The simplest way to monitor the channel is to note if "BUSY" is indicated in the lower part of the display (scan-

ning should be disabled). If "BUSY" is not indicated, the channel is not being used and you can transmit your message.

There may be times when this indication is displayed even though no one is using the channel. If this is occurring,

use the following method to monitor the channel:

Press the Auxiliary switch on the side of the transceiver. This temporarily halts scanning (if it was occurring) and

enables the monitor mode (indicated by "MON" in the display). The monitor mode disables Call Guard squelch (see

next section) so that all messages occurring on the channel are heard. If no messages are then heard, the channel is not

busy and you can transmit your message. To disable monitoring, press the Auxiliary switch again.

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