TT-44 SYNTHESIZED
TRANSMITTER
General Description
The Telex TT-44 is a portable base station
transmitter which operates in the 60-72 MHz
band and accepts intercom audio input levels.
Operating Features
Main Power Switch and Indicator LED:
The Power “ON” LED is illuminated when
the Power OFF/ON switch is ON. It remains
illuminated while the transmitter is on.
Channel Select
This control is rotated in the clockwise and
counterclockwise directions to attain reception
of the desired channel(s) being transmitted
within the 60-72 MHz frequency band.
RF Power Switch:
50 mW max in “Hi”, ap-
proximately 5 mW in “Low”.
Audio Level Meter:
Provides visual indica-
tion for setting input levels.
Audio “Monitor” Output Jack:
1/4" jack
provided for headset connection.
Audio “Monitor” Level Control:
Adjusts
output level for monitor headset.
Balanced Audio Input Connector:
Accepts
balanced two wire line or RTS two channel
line.
Balanced Input Selection Switch:
Selects
either balanced two wire, RTS channel “1" or
RTS channel ”2".
Balanced Input Level Control:
Adjusts input
level for all balanced input modes.
Unbalanced Audio Input Connector:
Ac-
cepts unbalanced audio via 1/4" plug.
Unbalanced Audio Level Control:
Adjusts
input level for unbalanced input mode.
Antenna Jack:
Accepts 50-ohm whip (sup-
plied).
Power Input Jack:
Accepts either AC Power
adaptor (supplied), or any source of 13 VAC
300MA or 15 to 24 VDC 300MA.
-6-
MAIN POWER SWITCH
AUDIO LEVEL METER
-10 -5
0 +3 +6
RadioCom
Synthesized
B
C
D
E
F
G
H
TM
Wireless IFB Transmitter
TT-44
Figure 3
Operating Features TT-44
Front Panel
