MIL-STD-2071A(AS)
APPENDIX
c. Measure and, when necessary, adjust the PRFs and record on the test data sheet. d. Measure system noise at each frequency.
e. Verify overall radar performance in accordance with the applicable radar manual.
4.2.3 Radar and instrumentation calibration. Calibrate the radars and instrumentation relative to one square meter using the radars and instrumentation calibration procedures.
4.2.3.1 Calibration for absolute RCS. Calibration for absolute RCS shall be performed prior to and following each test mission at each radar frequency at which measurements are being
taken. Calibration for absolute RCS shall be made using a sphere of known size that is lofted by a balloon, dropped from an aircraft, or towed by an aircraft and a signal generator test to verify the sphere test results. If exception is authorized and measurements are taken using a corner
reflector, flat plate, or Luneburg lens; the calibration procedures shall ensure that the effects of lobe structures in the reflector pattern are eliminated. The procedures contained in the operating manual for the processing equipment shall be followed during calibration, and the signal-to-noise ratio used for calibration purposes shall be maintained at +10 dB or greater.
4.2.4 Loading and verification of payload. Prior to loading, conduct a check on dispenser performance using the ground checkout procedures required for the type of aircraft and dispenser being used. If the dispenser pod is instrumented, ensure that all instrumentation is functioning properly. Using the procedures published in the dispensing equipment manual, load the payload in the amount specified in the associated specification for that particular chaff payload. Record the exact load and deployment sequence on the test data sheet or chaff dispensing plan. Conduct pre- mission ground check to ensure that the loading has been conducted in accordance with the loading requirements, test data sheet, test plan, and associated specification.
4.2.5 Control procedures. Central control of the test shall be from the ground radar installation using the standard ground-to-air communications equipment in use at the particular test facility. Commands for starting and stopping deployment of chaff and commands for correction to the flight path due to the presence of old chaff or other detrimental conditions shall be given by the test engineer at the test facility. All corrections to the flight path shall be noted in the test data.
4.2.6 Aircraft operation. The type of aircraft used to conduct the flight test shall be specified in the associated specification of the chaff payload being tested. The aircraft flight profile and weather conditions are included in 4.4 of the main body of this standard. Unless
otherwise specified in the contract or associated specification, the aircraft shall be equipped with a radar beacon or reflective lens to be used as a target for the tracking radar.
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