IFR NAVAIR NAV-750 User Manual

NAVAIR 17—2OAX—737
SECTION 1
INTRODUCTIONAND DESCRIPTION
1.1 This procedure describes the calibration of IFR Inc. NAV—750, NAV—750A, NAV—750B
VOR/LOC/COMM and G/S Bench Test Sets. The instrument being calibrated is referred to herein as the
TI (Test Instrument).
1.2 This procedure wasderived from draft prepared by NADEP Cherry Point. All comments concerning
this procedure should be directed to Navy Measurement Science Directorate, Naval Warfare Assessment
Division, P.O. Box 5000, Corona, CA 91718—5000.
1.3 This procedure includes tests of essentialperformance parameters only. Any malfunctionnoticed
duringcalibration, whether specifically tested for or not, should be corrected.
DEMOD tones
DC offset
Frequency range: 108.000 to
335.000 MI-Iz; (70.000 to 79.000,
NAV—750B only)
Tolerance: ±1 ppm
Range: 70.0 MHz to 335.0 MHz
Tolerance: ±1.5 dB @ —6 dBm to
-50 dBm; ±2.5 dB @ -51 dBm to
—120 dBm
Range: —6 to —50 dBm
Tolerance: ±1.5 dB
Range: —51 to —120 dBm
Tolerance: ±2.5 dB
Tone frequencies: 30, 90, 150,
1020, and 9960 Hz
DC offset: +40 mV to —40 mV dc
Tone Frequencies: 400, 1300, and
3000 Hz
DC offset: +80 mV to —80 mV dc
Tone frequencies: 30, 90, 150, and
9960 Hz
Tolerance: ±0.02%
Tone frequency: 1020 Hz
Tolerance: ±0.5%
Tone frequencies: 400, 1300, and
3000 Hz
Tolerance: ±0.7%
Tone frequencies: 90 and 150 Hz
Tolerance: ±0.4%
Tone frequencies: 30 and 1020 Hz
Tolerance: ±0.5%
Tone frequencies: 400, 1300,
and 3000 Hz
Tolerance: ±0.7%
Measured with an electronic
counter.
Attenuatoroutput monitored
by a power meter while the
frequency is verified.
Attenuatoroutput measured
with a signal analyzer.
Offset measured using a
digital multimeter.
Measured with an electronic
counter.
Table 1. Calibration Description
TI
Characteristics
Performance
Specifications
Test
Method
Frequency accuracy
Attenuator frequency
response
Attenuator linearity
Tone frequency
Tone distortion
Measured with a signal
analyzer.
1

IFR NAVAIR NAV-750 Specifications

General

Brand	IFR
Model	NAVAIR NAV-750
Category	Test Equipment
Language	English