Aeroflex ATC-1400A-2 - SLS Level Calibration Procedure

MAI NTENANCE MANUAL
ATC-1400A-2
2-2-2
Page 1 8
Subj e c t to E x p o rt Con t r o l, s e e C o ver P a g e fo r d e tail s . F e b 2/ 0 9
(6) SLS Le v e l
PREREQUISITES : 2-2- 2 D ( 1 ) P ower S u p p l y
2-2- 2 D ( 4 ) RF Ch e c k and L e v el
TEST E Q U I P M E N T : 1 O s c i llos c o p e
1 Sign a l G e n erat o r
1 Heter o d y ne Moni t o r
3 50 Ω Coa x i a l Cabl e s (BNC to B N C )
1 Power Me t e r with 5 7 3 18 s e n s o r
SET-UP DIAGRAM:
T
CH BCH A
SCOPE
I
POWER
WATTS
MHz
UNIT UNDER TEST
XMTR PWR
XMTR FREQ
REPLY
Hz
XPDR-%
DME-PRF
DISPLAY SELECT
XPDR MODE
RANGE/VEL/ACCEL
XMTRGEN
NORMOUT
-1 NMiIN
R
A
E
L
C
D
A
O
L
FT/S/S
KTS
NMi
ACCELVEL
XXX.00XXX0.0
RNG
XXX.XX
RF I/O
OFF
NORM
CW
-dBm
RF LEVEL
F
FREQ / FUNCTION SELECT
VAR
SUPPRESSOR
OFFON
OFFON
SLS/ECHO
XPDR PULSE WIDTH
CALVAR
RATE
STEP
FREQ
OFF
STEP
MAN
MAN
AUTO
/
CAL O
CAL MARKS
1.45æS
1.0æS
SYNC
TAC
D
O
T
T
2
DME P DEV
-+
-
+
+
-
V
V
V V V
V
V
232
CALCALCAL
PPP
OFFON
32
XPDR P /P DEVPRF/SQTR
DBL INTERR / INTRF PULSE
PULSE WIDTH
INTRF
DISCRIMINATOR
1 1
F
/
PP
/
F
22
OFF
TONE CODE
IDENT
OFFON
TACAN
A
T
2
1
FEET
CODE
2
1
AC
AC
D
C
B
90
80
70
60
100
40
30
20
10
0
50
EFFICIENCY
DME REPLY
PRF SQTR Hz
FREQ
RANGE
VEL
XPDR
DME DIST
XPDR
000 0
OFF
00 000 0 0
OFF
0000 0
0
0
0
+
0 0 0
0 0 0
0 0 0 0
7506008A
HET
LO IN RF IN
IF OUT
MONITOR
GEN
SIGNAL
OUTPUT
MHz
NMi
KTS
CODE
NMi
XPDR/DME Pu l s e Spac i n g and S h a pin g
Figu r e 30
NOTE: Dur i n g per f o r mance o f t his p r o cedu r e , if a c ert a i n co n d i tio n o r sp e c i fic a t i on
cann o t b e ve r i f ied, r e f er t o a ppro p r i a te a s sembly t e s t pr o c e dur e i n 2-2 - 4 for
test i n g an d r e pai r o f fa u l t y as s e m b l y.
STEP PROCEDURE
1. Set A T C - 1 4 00A- 2 c o ntro l s a s fo l l o ws:
CONTROL SETTING
CW/NORM/OFF Switc h NORMA L
SLS/ECHO ON/OFF S w i t c h OFF
XPDR PULSE WI D T H V A R / C A L Switch CA L
FREQ STE P R A T E Control O F F
MAN/AUTO/MAN STEP Switc h MAN
XPDR DEV P
3
/CAL Swi t c h CA L
XPDR DEV P
2
/CAL Swi t c h CA L
TO /TAC/TD Sw i t c h TO
PRF/SQTR ON/OFF S w i t c h ON
POWER Switc h ON
TACAN ON/OFF S w i t c h OFF
XPDR MODE Contro l A
PRF/SQTR T h u m b w h e els 1000
FREQ/FUNCTI ON S E L E C T Thumbwhee l s 1090 X P D R
SLS/ E C H O T h u mbwheels -0
RF LEV E L C o ntrol -10