MIL-HDBK-162A
Volume 1
15 December 1965
Section 1
ITEM NAME: INTERROGATOR SET
TYPE: AN/TPX-17C
max
RELATION TO SIMILAR EQUIPMENT
Duration at 50% Amplitude: 0.7 to 1.2
The AN/TPX-17C is the result of the following
usec
modifications made to the AN/ TPS-17B in order to
Decay Time from 90% to 10%: 0.4 usec max
increase its flexibility: The complete modulator was
Pulse Spacing Between Leading Edges of a
replaced to increase the life of the tubes in the
Pair at 50% Amplitude
modulator and to make the transmitter more reliable.
Mode 1: 3.0 plus or minus 0.2 usec
The overload protection circuitry for high-voltage
Mode 2: 5.0 plus or minus 0.2 usec
protection in the Radar Receiver-Transmitter was
Mode 3: 8.0 plus or minus 0.2 usec
modified. The set is for use with a remote indicator (not
Coder-Decoder KY-98A/TPX
included).
Input Pulse Characteristics
TECHNICAL DESCRIPTION
Polarity: pos
Radar Receiver-Transmitter RT-273C/TPS, Re-
Voltage: 5 to 50v peak
ceiver Section
Rise Time, O to 70% Amplitude: 0.02 to
Tuning Range: 1090 to 1110 mc
1.0 usec
Power Consumption: 440w
Repetition Rate: 50 to 4100 pps
Sensitivity Ratio: 11:1 -80 db below 1v
Display Trigger
or better.
Polarity: pos
Bandwidth at 6 db Down: 8 mc to 11 mc
Repetition Rate: 50 to 4100 pps
Bandwidth at 40 db Down: 24 mc max
Voltage: 5 to 50v
Image Ratio: 35 db min
Rise Time: 0.4 usec
Second and Third Harmonic Rejection at
Jitter: 0.05 usec max
1960: 2480 mc and 2790-3690 mc -40
Suppressor Pulse
db min
Rise Time: Equals less than 0.25 usec
Positive Video Output
Duration: 1 to 3 usec
Type A: 10 to 12v high dynamic range
Amplitude: plus 20 to plus 50v
(0.03 rms volt noise).
Self-Trigger: 150 to 410 pulse-pairs
Type B: 4 to 5v low dynamic range
per sec
(1 rms volt noise).
Video Distributor SA-30O/UPX
Intermediate Frequency: 59.5 mc plus
IFF Video Input Impedance at Input Ter-
or minus 1.5 mc
minal: 70 ohms plus or minus 5% nomi-
Local Oscillator Radiation: Max -40 db
nal (or high impedance of not less
below 1v
than 5000 ohms nor more than 40 uuf).
Frequency Drift: plus or minus 2 mc max
IFF Video Output Signal
Intermediate Frequency Pick-Up: 60 db
Polarity: pos
below signal level.
Impedance: 75 ohms nom
Receiver Delay: 0.5 usec max
Video Amplifiers AM-739/TPX and AM-739A/TPX
Dynamic Range: 20 db min
IFF Input Signal Range: plus 2.5 to plus
GTC-Gate Duration (Both Long and Short):
5v
Adjustable from less than 300 usec to
Radar Input Signal Range: plus 1 to plus
more than 2500 usec
2.5v (0.75v rms noise min).
Radar Receiver Transmitter RT-273C/TPX,
Video Output Signal
Transmitter Section
Polarity: pos
Tuning Range: 1010 to 1030 mc
IFF and Radar Video Level: Same as in-
Emission, Into 52-ohm Resistive Load:
put across 75 ohms nom (or high im-
1000w peak min
pedance of not less than 5000 ohms
Receiver-Transmitter Frequency Separation
nor more than 40 uuf).
For Rated Output: 50 mc min
Operating Power Requirements: 115v ac,
Duty Cycle: 0.1% max
400 cps, 1-ph
Transmission Rate, Pulse-Pair: 50 to
INSTALLATION CONSIDERATIONS
410 per sec
Not available.
Frequency Drift: plus or minus 2.5 mc
Transmitted Pulse Shape, Single Pulse
Rise Time From 10% to 90%: 0.15 usec,
AN/TPX-17C: 2
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