®
ASTRO
Digital Spectra
1
4
7
*
VOLUME ROCKER
VOL
SWITCH
CHANNEL BUTTON - Initiates Channel Select mode for selecting a transmit and receive frequency pair
CHAN
DTMF
DTMF BUTTON
TRNK BUTTON
TRNK
HOME
HOME BUTTON
A / D
A / D BUTTON
PA / IC BUTTONS
1
12 DIGIT KEYPAD
D
I
DISPATCH BUTTON - Transmits selected DTMF tone or tone sequence if enabled.
S
P
P
PTT BUTTON
T
T
TX
TX / RX DISPLAY
020
D5
DISPATCH TONE
DISP
VOLUME DISPLAY
VOLUME
LED Indicators
TX
®
Clean Cab Railroad Radio Quick Reference Guide
2
3
CHAN
5
6
DTMF
RAD PA
8
9
RAD
TRNK
0
#
A / D
HOME
CONTROLS AND INDICATIONS
- Sets receiver volume.
using the numbers on the 12 digit keypad.
- Initiates Dispatch DTMF Select mode for selecting and transmitting a DTMF
dispatch call tone using the 12 digit keypad.
- Initiates Talkgroup Select mode for selecting a programmed trunking talkgroup.
Enabled only with ASTRO 3600 baud trunking option.
- Initiates Home Select mode for selecting a programmed combination of
transmit/receive frequencies and dispatch DTMF tone (if applicable) or a trunking
talkgroup.
- Toggles between analog and digital modes. Only available on non-trunking
channels.
- These buttons and associated LEDs are only available with MBW330 option.
Information on usage is found in the specific PA/Intercom equipment
documentation.
- Normally selects DTMF tones directly. Configured to enter Channel, DTMF,
Trunking Talkgroup and Home numbers in the four select modes.
- Press to transmit voice via the front panel microphone.
- Displays selected transmit and receive channels. On a trunking mode, the
display will show "TRUNK xxx" where xxx is the trunking talkgroup. When a home
mode is selected, the programmed home mode name will be displayed.
-
Indicates the selected DTMF tone "Dx" where x is the dispatch DTMF character.
If tone sequence is enabled the "D" is omitted and only the selected DTMF
character sequence is displayed, "xxx".
- 10-segment bar graph indicates relative volume level within range of programmed
minimum volume level to full volume.
-
"TX" will illuminate red whenever radio is transmitting. "A" or "D" will illuminate
yellow to indicate analog or digital channel mode. On a trunking mode, neither
will illuminate.
TX
D5 020 067
DISP
IC CALL
TX
A
D
D
PA
IC
I
S
CALL
VOL
P
*6881097C37*
RX
VOLUME
P
T
T
68P81097C37
Issue O
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