IFR NAVAIR NAV-750

NAVAIR 17—2OAX—737
CALIBRATIONCHECKLIST
TEST INST (S) IFR Inc. NAV-750, NAV-750A, and NAV—750B VOR/LOC/COMMand G/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
(6)
CALIBRATION TOLERANCES
(7)
FIRST RUN
(4)
SECOND RUN
(5)
4.12.9 334.700 @ ±20 kHz
—— ck () SSB noise 68 dBc
4.12.12 108.000 @ ±20 kHz —— ck ()
—
— “ ~74
4.12.13 108.000 @ ±12.5 kHz —— ck () —
Har. “ >68
4.12. 14 108.000 @ ±25 kHz —— ck () “ ~71
4.12.16 334.700 @ ±12.5 kHz
—— ck () “ >63
4.12.17 334.700 Q ±25 kHz —— ck () “ ~74
4.12.19 334.700 @ ±100 kHz —— ck () — Brd. “ >80
4.12.22 108.000 @ ±100 kHz —— ck () “ 80
4.13 Spectral Purity Tests (NAV—75 A only) —
(MHz) — (Harmonics)
4.13.4 108.000 —— ck () >30 dBc
“ 115.000 —— ck() — “
“ 130.000 —— ck () — “
“ 145.000 —— ck () — “
“ 157.000 —— ck () — “
4.13.6 329.000
—— ck() — “
“ 332.000 —— ck () “
“ 335.000 —— ck ()
—
— “
4.13.9 334.700 @ ±20 kHz
—— ck ()
— SSB noise >74 dBc
4.13.12 130.000 @ ±15 kHz —— ck () — “ >78
4.13.15 108.000 @ ±15 kHz
—— ck () — “ >78
4.13.16 108.000 @ ±12.5 kHz —— ck () — Har. “ 75
4.13.17 108.000 @ ±25 k}{z —— ck () — “ ~83
4.13.19 334.700 ~ ±12.5 kHz —— ck () “ >66
4.13.20 334.700 @ ±25 kHz —— ck ()
—
“ 77
4. 13.22 334.700 @ ±100 kHz
—— ck () Brd. “ >82
4.13.25
108.000 @ ±100 kHz
——
ck ()
—
— “ ~82
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