TM 75053
AS462/GMD1
Figure 23. Antenna AS462/GMD1.
1. NOMENCLATURE: Antenna AS462/GMD1.
frequency (RF) energy radiated by a radiosonde trans-
mitter is received by the AS462/GMD1 and is sinusoid-
2. TYPE CLASSIFICATION: Standard A.
ally modulated by conical scanning. This sinusoidal modu-
3. SECURITY REQUIREMENTS: Unclassified.
lation of the RF energy is introduced by the rawin set to
permit automatic tracking of the radiosonde.
4. PRIMARY USE OR CONCEPT OF EMPLOYMENT:
Receives radiosonde signals and provides conical scan-
6. TECHNICAL CHARACTERISTICS:
ning for Rawin Set AN/GMD-1( ).
Scanning type
_ _ _ _ _ _ Conical.
BRIEF FUNCTIONAL DESCRIPTION :
Antenna type
_ _ _ _ _ _ _ Single dipole.
a. Antenna AS-462/GMD1, consisting of a reflector
Reflector type
_ _ _ _ _ Parabolic.
and an antenna scanner assembly, receives signals gener-
Antenna scanner assembly
ated by an airborne radiosonde and provides conical
drive motor _ _ _ _ _ _ _ Induction, split-phase
scanning.
capacitor start,
b. Antenna AS462/GMD1 is used as part of Rawin
115-vac 10%, 60 Hz
Set AN/GMD1( ) in a rawinsonde system. The radio-
510, 1,760 rpm.
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