IFR COM-120C, Operation Manual

Page: 62 / 326

3-17
SECTION 3
COMPOSITE
3-3-9 DUPLEX SCREEN
T h e D u p l e x O p e r a t i o n S c r e e n i s u s e d t o d e f i n e a n d a c t i v a t e t h e C O M - 1 2 0
C
R F
G e n e r a t o r a n d R F R e c e i v e r s i m u l t a n e o u s l y a t t h e s a m e f r e q u e n c y o r o f f s e t f r e q u e n c i e s
a n d i s a c c e s s e d b y p r e s s i n g t h e D P L X T e s t M o d e K e y .
T h e D u p l e x O p e r a t i o n S c r e e n d i s p l a y s i n t h e c o n f i g u r a t i o n l a s t u s e d .
1 . H e a d e r B a r
D i s p l a y s c u r r e n t o p e r a t i o n
m o d e .
2 . D u p l e x G e n e r a t e P r o m p t
Accesses Duplex Generate
Operation Screen.
3 . D u p l e x G e n e r a t e R F F ie ld
D i s p l a y s c u r r e n t D u p l e x
G e n e r a t e F r e q u e n c y .
R a n g e i s 0 . 0 0 0 0 t o
1 0 0 0 . 0 0 0 0 M H z .
4 . F r e q u e n c y O f f s e t
D i s p l a y s f r e q u e n c y
d i f f e r e n c e b e t w e e n
D u p l e x G e n e r a t e R F F ie l d
( 3 ) a n d D u p l e x R e c e i v e R F F ie l d ( 2 0 ) . R a n g e i s f r o m - 9 9 9 . 7 5 0 0 t o 9 9 9 . 7 5 0 M H z .
5 . O u t p u t L e v e l
D i s p l a y s O u t p u t L e v e l . I f T / R C o n n e c t o r i s s e l e c t e d f o r O u t p u t ( 6 ) , r a n g e i s - 1 3 0
t o - 4 0 d B m , 0 t o . 0 0 2 2 3 6 V , 0 t o 2 . 2 3 6 0 m V o r 0 . 0 7 t o 2 2 3 6 . 0
µ
V . I f A U X R F
C o n n e c t o r i s s e l e c t e d f o r O u t p u t ( 6 ) , r a n g e i s - 1 3 0 t o - 1 3 d B m , 0 t o 0 . 0 5 0 0 5 9 V ,
0 t o 5 0 . 0 5 9 3 m V o r 0 . 0 7 t o 5 0 0 5 9 . 3
µ
V.
6 . O u t p u t
D i s p l a y s O u t p u t C o n n e c t o r . D i s p l a y s T / R , T / R G a t e , A U X o r A U X G a t e . G a t e d
O u t p u t i s a c t i v e o n l y w h e n m i c r o p h o n e , a t t a c h e d t o M I C / A C C C o n n e c t o r , i s k e y e d .
7 . M o d u l a t i o n S o u r c e W i n d o w
D i s p l a y s a c t i v e M o d u l a t i o n S o u r c e s . I n a c t i v e M o d u l a t i o n S o u r c e s a r e n o t s h o w n .
I f t w o ( o r m o r e ) s e c t i o n s o f t h e R F M o d u l a t o r a r e s e t i n c o n f l i c t ( e . g . G EN 1 s e t f o r
P M a n d G EN 2 s e t f o r F M , o r G EN 1 s e t f o r 0 . 0 1 k H z d e v i a t i o n a n d G EN 2 s e t f o r
2 . 6 0 k H z d e v i a t i o n ) t h e s c r e e n d i s p l a y s t h e i n v a l i d s o u r c e g r a y e d o u t .
Mod Src : GEN 1
Deviation : 5.0 kHz
Shape : SINE
Freq : 1000.0 Hz
Format : TONE
- 40.0 dBm
T/R
GEN1
0.0000 MHz
DISTORTION:
AF FREQUENCY
T/R
FM
OFF
- - -
FM
RF :
DEVIATION:
DUPLEX
Tone/Data Code: DCS
00607041
Offset :
Level :
Output :
525.0000 MHz
RECEIVE
GENERATE
RECEIVE AND GENERATE
Input :
Demod :
FL :
RF : 525.0000 MHz
IF BW: 15 kHz
Atten: 0 dB
RF Power:
RF Error Freq: 0.001
3.0 %
1000 Hz
5.0 kHz
0.0 mW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
16
15
17
18
19
20
21
22
kHz
D u p l e x S c r e e n