IFR NAVAIR NAV-750

NAVAIR 17—2OAX—737
CALIBRATION CHECKLIST
TEST INST (S) IFR Inc. NAV-750, NAV-750A, and NAV-750B VOR/LOC/COMMand G/S Bench Test Sets
<200 Hz
<400 Hz
Page 8 of 8
PROC. NO. NA 17-2OAX-737 MFG. MODEL SER. NO.
PROCEDURE
STEP
NO.
(1)
FUNCTION TESTED
(2)
NOMINAL
(3)
MEASUPED VALUES OUT
OF
TOL
~
CALIBRATION TOLERANCES
(7)
FIRST RUN
(4)
SECOND RUN
(5)
4.14 Spectral Purity Tests (NAV—75 B only)
(MHz) (Harmonics)
4.14.4 108.000 —— ck () >30 dBc
“ 115.000 —— ck()
—
— “
“ 130.000
—— ck () “
“ 145.000 —— ck()
—
“
“ 157.000 —— ck ()
—
— “
4.14.6 329.000 —— ck () — “
“ 332.000 —— ck () “
“ 335.000 —— ck () “
4.14.8 070.000 —— ck () >20 dBc
“ 075.000 —— ck ()
—
— “
“ 079.000 —— ck () “
4. 14.11 334.700 @ ±20 kHz
——
ck ()
—
SSB noise ~74 dBc
4.14. 14 108.000 @ ±20 kHz —— ck ()
—
— “ ~78
4.14. 15 108.000 @ ±12.5 kFIz
—— ck () — Har. “ ~75
4.14.16 108.000 @ ±25 kHz
—— ck () — “ ~83
4.14.18 334.700 @ ±12.5 kHz —— ck ()
“ 75
4.14. 19 334.700 @ ±25 kHz —— ck () “ >83
4. 14.21 334.700 @ ±100 kHz —— ck () Brd. “ >80
4. 14.24 108.000 @ ±100 kHz —— ck ()
“ >80
4.15
4.15.5
Residual FM Tests
4.15.7
118.000 MHz
332.000 MHz
ck ()
ck (
36