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Figure 7 - TMX-8810 Controls
INDICATORS
Display Indicators
A Liquid Crystal Display (LCD) provides the operational
status of the radio. The display contains TX and BSY indicators
and eight alphanumeric characters (see Figure 8).
TX (Transmit)
ON: Indicates the microphone Push-to-Talk (PTT) is
pushed.
FLASHING: Indicates attempting to acquire a channel in
trunked mode.
BSY (Busy)
Trunked Mode:
FLASHING: Indicates radio is automatically retrying
to acquire a channel while system is busy. (Radio must
be pre programmed for call retry option.
ON: Indicates out-of-range of the GE-MARC system.
Conventional MODE:
ON: Indicates the channel is busy.
Display Characters
Eight alphanumeric characters. Up to 4 characters may be
used for the area named followed by 4 characters for the group
name.
Figure 8 - TMX-8810 LCD Indicators
AUDIBLE INDICATORS
Self Check Test Alert
Three beeps are sounded a second after the radio is turned on
to indicate that the radio has passed the self diagnostic test. The
display will also show PASSED for one second.
Call Received Alert (Trunked Mode Only)
A short, high frequency tone is sounded when you receive
a group call. A two tone alert is sounded when receiving an
individual call. NOTE: The radio can be preprogrammed to
mute the Call Received Alert Tones.
Call Originate Alert (Trunked Mode Only)
A three tone alert is sounded after originating a trunked
call. The alert indicates a channel was acquired and is ready
for normal conversation.
System Busy (Trunked Mode Only)
A low frequency tone is sounded for one second after
attempting to place a trunked call. The display also shows
WAIT momentarily. This tone indicates the GE-MARC sys-
tem is busy and you should try again later (the call retry option
will try again automatically if preprogrammed).
Out Of Range Alert (Trunked Mode Only)
Five beeps are sounded after attempting to place a trunked
call. These beeps indicate that the radio is out of range of the
GE-MARC system, or if the beeps sound when the radio is
within known range of the system, the radio may need servic-
ing (even though the self diagnostic test passed at power on).
Invalid Call Originate Alert (Trunked Mode
Only)
A low frequency tone is sounded for one second immedi-
ately after pressing the mic PTT. The display does not show
WAIT. A call was attempted with a group that is not enabled
for call originate.
Carrier Control Timer (Trunked, Direct, And
Conventional Modes)
A pulsed tone signal is sounded when the micro-phone
PTT is pressed continuously for a preprogrammed tone. After
nine seconds of pulsing the alert tone, the radio unkeys the
transmitter and communications is interrupted. While the tone
is pulsing, the user can release and press the PTT again to reset
the timer and resume the conversation.
GE-Marc System Tones
The GE-MARC system may give other tones to alert the
user of system time-out, etc. Contact your GE-MARC system
operator for details about these alert tones.
LBI-39049
BASIC OPERATION
Turning The Radio On
Push the POWER switch. A self diagnostic test is per-
formed for 1 second. A 3 beep alert signal will then sound and
the display will show PASSED for one second. The display
will then show the AREA and GROUP which were last se-
lected.
NOTE
Should the 3 beep alert not sound and/or the display
shows ERROR, contact your service representative.
Set the volume level using the VOLUME UP or VOL-
UME DOWN keys. A short beep will sound to show each
volume level step. The beeps will stop when maximum or
minimum volume are reached or while receiving a call.
NOTE
Pushing MENU and the VOLUME UP simultane-
ously will immediately place the volume at maximum.
Conversely, pressing MENU and VOLUME DOWN
places the radio at minimum volume. The MENU key
acts as a "shift" key for these functions.
Turning The Radio Off
Push the POWER switch or if the radio is connected to
the vehicle ignition switch, turn the vehicle ignition off. When
the vehicle ignition is turned back on, the radio power and all
other radio settings will return to the same condition last
selected.
TRUNKED MODE OPERATION
Placing A Dispatch Call
NOTE
If you plan on a lengthy call (or several calls), the
vehicle engine should be running to maintain
battery charge.
1. Select the desired trunked mode AREA and GROUP
using the AREA and GROUP keys. If the SPECIAL
CALL (SPC) feature is desired, select the area fol-
lowed by simultaneously pressing MENU and then
GROUP UP. The display will show SPC after the area
name. If the area has no programmed groups, SPC
selection is automatic.
C
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