TM-9-1290-365-24-P
PALADIN MUZZLE VELOCITY SYSTEM M93 UPGRADED
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST
OCTOBER 2000
TM-9-1290-365-24-P - Page 35 of 334
ARMY TM 9-1290-365-24&P
1.19.2 RF Section
. The RF section consists of an antenna and a transceiver. The transceiver
consists of an extremely stable oscillator, circulator, and mixer. The RF system transmits a low-
power, continuous microwave (X band) signal and receives Doppler-shifted echoes. The
detected frequency difference between the transmitted and received frequencies is proportional
to the projectile velocity.
1.19.3 Doppler Amplifier
. For the following description, refer to Figure 1-4. The Doppler
amplifier consists of an amplifier with a bandwidth of 3-140 kHz. The input of the Doppler
amplifier is the RF system output, which is filtered, amplified, shaped, and transmitted through a
differential line driver to the muzzle velocity processor.
RF
INPUT
INPUT
AMPLIFIER
DIFF.
AMPLIFIER
DOPPLER+
DOPPLER-
OUTPUT
DRIVERS
Figure 1-4. Doppler Amplifier Module Simplified Block Diagram
1-15
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