Instruction manual

26 Chapter 3 Operation
seconds. The radio will send the appropriate acknowledgment to the
requesting radio. If the radio receives a selective call command with
an ID that matches the programmed GE Star® group ID (or 00000
for ―all-call‖), the VMDE-200 will not send an acknowledgment.
Pressing the <C> button or pressing the radio PTT button silences
the alert tones and reverts the display to channel information.
If GE Star® ―Selective call to unmute‖ has been enabled, the radio
receive audio remains muted until receipt of a selective call. It will
then remain unmuted until receipt of a Call Cancel.
GE Star® Call Cancel
To cancel a previously sent GE Star® Selective Call, press the <A>
button until ―CALLCNCL‖ appears in the display then press the <B>
button to select the target radio. If an alias table is present, the radio
enters the alias mode of ID selection. If there is no alias table, any
valid ID can be entered. If you desire to enter an ID instead of the
alias, press and hold the <B> button for longer than 2 seconds.
Refer to page 28 for more information. If an error is made in the ID
entry, continue to fill out the five-character ID and then press <C>
and reenter the ID. After the ID is entered, momentarily press the
radio PTT to send the message. Data is sent and then the radio
unkeys. If an acknowledgment is received from the target radio, the
display changes to —ACK— . If no acknowledgment is received in
five seconds, the display changes to alternating between the target
ID (or Alias) and —NAC—for five seconds.
If the radio receives a selective call cancel with a matching ID, the
radio responds by reverting the display (if it still shows —CALL—)
and silences the repeating alert tone. The radio will send the
appropriate acknowledgment to the requesting radio. If the radio
operator had already cleared the display and repeating alert tone,
the receiving radio takes no action.
If GE Star® ―Selective call to unmute‖ has been enabled, the radio
receive audio will become muted until receipt of a subsequent
selective call.
GE Star® and MDC-1200® Open Microphone Monitor
Open Microphone Monitor is a receive only function. If the radio
receives an open mic monitor command, the radio will key up, send
an acknowledgment and then activate the microphone to transmit
ambient noise for a period of 15 seconds. After which, the radio
unkeys.
GE Star® and MDC-1200® Radio Disable/Enable
Radio disable and enable are receive only functions. Only base
dispatch systems with appropriate equipment are capable of
transmitting these commands.
Upon receipt of a Radio Disable command, the radio receive
functions will remain muted and transmit functions will bbe disabled.
The VMDE-200 continues to monitor receive audio for subsequent
commands and acts upon them. Receipt of a Radio enable
command returns the radio to normal operation. The radio will send
the appropriate acknowledgment to the transmitting station.
DTMF Specifics
DTMF in the VMDE-200 is encode capable only. There are no