TM-9-1290-365-24&P Technical and Parts Manual for Paladin Muzzle Velocity System M93 Upgraded Download
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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