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| TM 11-5895-458-14
-11.0 3.0 dB at 960
dB + 3.5 dB at 960
kHz.
kHz; -60 dB minimum
Spurious outputs.................At least 80 dB down
at 2 MHz.
Alarms (can be muted) .......Low power (transmitter
Video frequency response ....... Gaussian, -3.0 .5 dB at
output); synchronize
400 kHz; -38.0 :6.0 dB
(sync) (synthesizer
at 960 kHz.
automatic frequency
Pcm regenerator frequency ..... 676 kHz 0.1.%
control (afc) lock);
Regenerated pcm output. ........ 2-volt, negative peak
overheat (transmitter
Timing pulse output level ......... 2-volt, positive peak
output tube).
Alarms (can be muted)............. RF low signal; RF high
Metering..............................Power supply voltages;
signal; sync
reflected power; oscillator
(synthesizer afc lock).
and multipler output
Metering .................................. Power supply voltages;
levels; power output;
reflected power;
modulation levels.
oscillator and multipler
Order wire input ..................-10 decibels (referred to 1
output levels;
milliwatt in 600 ohms
transmitter duplexer
(dBm)
tuning; received signal
Auxiliary outputs .................28 volts direct current (dc)
level; output video
regulated; 26 volts dc,
levels; recovered order
unregulated.
wire level.
Power requirements ...........115 volts alternating current
Auxiliary outputs....................... 12 volts dc, regulated;26
(ac) 5%, 300 volt-
volts dc, unregulated.
amperes, single-phase, 47
Power requirements ................. 115 volts ac, 5%, 70
to 420 Hz.
volt- amperes single phase, 47
(2) Receiver, Radio R-1329 (I /GRC-103
Hz to 420 Hz.
(V) with Amplifier-Converter
AM-4316/GRC-
(3) Receiver-Transmitter, Order Wire RT-
773/GRC-103 { V).
103(V).
Frequency range ................Same as T-983(P)/GRC-
Order wire transmit
103(V)
output impedance .............. 600 ohms unbalanced
Channel/frequency conversion Channel No. + 200=
Order wire transmit
2
output level ........................ -10 dBm (2 outputs)
frequency in MHz
Order wire receive
Frequency accuracy .............. 20 kHz
input impedance ................ 600 ohms unbalanced
Modulation ..........................FM
Order wire receive
Input impedance .................50 ohms unbalanced
input .................................. -10 dBm (2 inputs)
Input vswr at nominal
Handset type .........
Handset H-60/PT
received frequency 1MHz 2.2:1 maximum
Receive level at receiver
Minimum transmitter-to-
handset .................................... -18 dBm
receiver frequency separation
Sidetone level at receiver
required ..............................16.5 MHz (33 channels)
handset ................................... .-24 dBm
Maximum receiver input
Ringing tone frequency ............ 1,600
8 Hz
at nominal received
Ringing tone level..................... -10
1 dB
frequency............................-10 dBm
Power requirements ................. 12 volts dc regulated; 26
Receiver sensitivity.............-94 dBm
volts dc unregulated.
(4) Dummy Load, Electrical DA-437/GRC-
Noise figure ........... ............9 dB nominal (11 dB
103( V).
maximum)
Demodulation sensitivity,
Impedance ............................... 50 ohms unbalanced
pcm video output..........0.125 volts/100 kHz
Vswr ........................................ 1.5:1 maximum; 220
Output impedance, regenerated
MHz to 1,000 MHz.
12-channel pcm video..91 ohms unbalanced
Power ....................................... 50-watt maximum con-
Output impedance, order wire 600 ohms unbalanced
tinuous
Output impedance, timing
pulse ............................91 ohms unbalanced
KEY to fig. 3-6:
1 Transmitter, Radio T-983(P)/GRC-103(V)
Output level, order wire, ........ - 10 dBm
from multiplex combiner
2 Amplifier-Frequency Multipler AM-4320/GRC-
Intermediate frequency (IF .... -4 dBm
103(V)(Band I)
center .............................
3 Receiver, Radio R-1329(P)/GRC-103(V)
IF response .......................30.0 MHz + 20 kHz
4 Amplifier-Converter AM 1316/GRC-103(V)(
Gaussian, -2.9 dB + 0.6
Band I)
dB at 375 kHz; -19.0
5 Receiver-Transmitter, Order Wire RT-733/GRC-
103(V)
3-8
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