TM 750-5-3
AN/AMT-12
6. TECHNICAL CHARACTERISTICS:
Temperature Element ML419/AMT4.
Radiosonde Set AN/AMT12:
Humidity Element, Resistance ML476/AMT4.
Range of measurements:
8. SET, SYSTEM, FACILITY, AND CONFIGURATION
Atmospheric pressure _ _ 1,060 to 2 mb.
APPLICATIONS:
Temperature _ _ _ _ _ _ +60 C. to 90 C.
This set is used in a system with Rawin Set AN/GMD
Relative humidity _ _ _ _ 15% to 100%.
1( ), Radiosonde Recorder AN/TMQ5( ), and Baseline
Accuracy: -
Check Set AN/GMM1.
Atmospheric pressure 1,060 to 50 4 mb, 50
to 20 0.5 mb, 20 to
9. ADDITIONAL EQUIPMENT REQUIRED AND AUX-
2 0.25 mb.
ILIARY EQUIPMENT:
Temperature _ _ _ _ _ _ _ _ 0.5 C.
a. Additional Equipment.
Relative humidity _ _ __ _ Within 5%.
Battery Pack BA259/AM.
Distance Range:
Meteorological balloon, inflating and launching acces-
Altitude _ _ _ _ _ _ _ _ _ _ _ _ _ 141,275 ft max or 43,-
sories, parachute.
Carbon disulfide.
061 meters.
Horizontal _ _ _ _ _ _ _ _ _ _ 125 mi max.
Radiosonde Baseline Check Set AN/GMM1 or AN/
Power supply
GMM1A.
115, 6, and 1.5 vdc
Rawin Set AN/GMD1A or AN/GMD1B.
(Battery Pack BA
Radiosonde Recorder AN/TMQ5, AN/TMQ5A, AN/
259/AM).
TMQ5B, or AN/TMQ5C.
Output power _ _ _ _ _ _ _ _ _ _ 180 mw min.
Test Set TS538/U, TS538A/U, TS538B/U, or
Weight (less battery) _ _ __ _ 392g.
TS538C/U.
Modulator, Radiosonde MD317/AMT12:
b. Auziliary Equipment. None.
Pressure sensors:
1,060 to 50 mb _ _ _ _ _ _ _ _ Aneroid capsule.
10. TOOLS AND TEST EQUIPMENT: None.
50 to 2 mb _ _ _ _ _ _ _ Hypsometer (thermis-
tor changes resist-
11. REFERENCE DATA AND LITERATURE:
ances with changing
TM 11666022010 _ _ _ _ _ _ AN/AMT12
boiling-point temper-
TM 11666021912, 20P,
ature of carbon di-
34,35P _ _ _ _ _ _ _ _ _ _ AN/GMM1( )
sulfide due to pres-
TM 11666020410, 25,
sure variations).
25P _ _ _ _ _ _ _ _ _ _ _ _ _ _ AN/TMQ5( )
Temperature sensor _ __ _ Temperature Element
TM 11666020612, 20P,
35_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ AN/GMD1( )
ML419/AMT4 (re-
TM 11662521312, 20P,
sistance varies i n -
35,35P _ _ _ _ _ _ _ _ _ _ _ TS538/U( )
versely with temper-
TM 11666022212.
Balloons, Launchers
ature).
Humidity sensor _ _ _ _ _ _ Humidity Element, Re-
12. REPAIR PARTS SUPPORT CAPABILITY: No den-
sistance ML476/
sity.
AMT4 (resistance
13. TRAINING REQUIREMENTS:
varies directly with
humidity).
Operator MOS 93E20, 93F20.
Transmitter, Radiosonde T-652/AMT12:
14. TYPICAL BASIS OF ISSUE: No density.
Frequency range _ _ _ _ _ _ 1,660 to 1,700 MHz.
Preset frequency _ _ _ _ _ _ 1,680 4 MHz.
15. PRICE DATA:
Type of output _ _ _ _ _ _ _ _ _ Pulse.
a. Major item _ _ _ _ _ _ _ _ _ _ _ .60.
Pulse repetition rate _ _ _ _ 5 to 200 pps.
b. Repair parts (1-year cost
Expendable, nonrepair-
Antenna _ _ _ _ _ _ _ _ _ _ _ _ Dipole, current fed.
based on 100 equipments).
able.
7. MAJOR COMPONENTS:
16. ITEM REPLACED: None.
Modulator, Radiosonde MD317/AMT12.
Transmitter, Radiosonde T652/AMT12.
17. REMARKS: Issue as a unit replacement.
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