IFR NAVAIR NAV-750

NAVAIR 17—2OAX—737
CALIBRATION CHECKLIST
TEST INST ~ IFR Inc. NAV- 750, NAV-750A, and NAV—750B VOR/LOC/COMMand 0/S Bench Test Sets
PROC. NO. NA 17-2OAX-737 MFG. MODEL SER. NO.
PROCEDURE
STEP
NO.
(1)
FUNCTION TESTED
(2)
NOMINAL
(3)
MEASURED VALUES OUT
OF
TOL
~
CALIBRATION TOLERANCES
(7)
FIRST RUN
(4)
SECOND RUN
(5)
4.9 VOR Bearing Tests —
494 TO 0°
00° 000 00° ÷005°
496 FROM 0° 180 0° 180 00° ÷005°
498 TO 180° 1800° “
4910 FROM 180° 00° 00000° ÷005°
4912 T090° 900° 9000°÷005°
4.9.14 FROM 90° 270.0° 270.00° ±0.05°
4.9.16 TO 270° “ “
4.9.18 FROM 270° 90.0° 90.00° ±0.05°
4.10 LOC Centering Test
4.10.3 150 HzDEMOD voltage NA Record
4.10.5 90 Hz DEMOD voltage NA
Record
4.10.6 Difference Diff <2.75 mV rms
4.11
G/S Centering Test
4.11.2 150 HzDEMOD voltage
NA Record
4.11.4 90 Hz DEMOD voltage
NA
Record
4.11.5 Difference Diff <2.75 mV rms
4.12
Spectral Purity Tests (NAV—75( only)
(MHz) (Harmonics)
4.12.4 108.000 — — ck () >30 dBc
115.000 —— ck ()
130.000 — — ck() “
“ 145.000 —— ck () “
“ 157.000 —— ck () “
4.12.6 329.000 — — ck () “
“ 332.000 —
— ck () “
“ 335.000 — — ckfl “
Page 6 of 8
34