IFR Systems FM/AM-1200S/A Operation Manual page 158

Communications service monitor
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B .
R e p e a t e r C h a n n e l
N u m b e r s
A m o b i l e r a d i o i s p r o g r a m m e d w i t h a s e t o f v a l i d r e p e a t e r n u m b e r s
f r o m 1 t o 2 0 .
A n RF c h a n n e l
n u m b e r i s a s s o c i a t e d w i t h e a c h o f
t h e s e r e p e a t e r n u m b e r s i n a m o b i l e r a d i o l o o k - u p t a b l e .
O n e o f
t h e s e r e p e a t e r s i s d e s i g n a t e d t h e h o m e r e p e a t e r f o r t h e m o b i l e
r a d i o .
F o r E x a m p l e :
* T h e s e
c h a n n e l
n u m b e r s a n d f r e q u e n c i e s r e f l e c t t h o s e u s e d i n t h e
l o w e r T r u n k i n g b a n d .
F o r a c o m p l e t e l i s t o f c h a n n e l
n u m b e r s a n d
f r e q u e n c i e s ,
s e e A p p e n d i x
F .
-
-
G i v e n a c h a n n e l
n u m b e r ,
t h e m o b i l e u n i t c a n c o m p u t e t h e t r a n s m i t
a n d r e c e i v e f r e q u e n c i e s a c c o r d i n g t o t h e f o l l o w i n g f o r m u l a e :
M O B I L E T R A N S M I T
FREQUENCY*
8 0 6 . 9 6 2 5
8 0 7 . 9 6 2 5
8 0 8 . 9 6 2 5
8 0 9 . 9 6 2 5
8 1 0 . 9 6 2 5
T r a n s m i t RF
-
8 0 6 . 0 1 2 5
+
L . 0 2 5
x ( C h a n n e l
/I
- 1 ) M H z l
R e c e i v e RF
-
T r a n s m i t RF
+
4 5 MHz
MOB1 LE R E C E I V E
FREQUENCY
8 5 1 . 9 6 2 5
8 5 2 . 9 6 2 5
8 5 3 . 9 6 2 5
8 5 4 . 9 6 2 5
8 5 5 . 9 6 2 5
REPEATER
L I S T
3
7
11
1 5
1 9
T r a n s m i t RF
=
8 9 6 . 0 0 0 0
+
( . 0 1 2 5
x C h a n n e l
I / )
MHz
R e c e i v e RF
=
T r a n s m i t RF
+
3 9 MHz
CHANNEL
NUMBER
3 9
7 9
11 9
1 5 9
1 9 9
NOTE
R a d i o s
o p e r a t i n g
i n t h e
L o w T r u n k i n g
F r e q u e n c y B a n d
w i t h i n r a n g e o f M e x i c o o r C a n a d a m u s t e m p l o y a
- 1 2 . 5
k H z o f f s e t a s r e q u i r e d b y t h e FCC.
R e p e a t e r s ,
i n t u r n ,
a r e p r o g r a m m e d t o r e c o g n i z e a S e t o f I D
c o d e s .
A n y r e c e i v e d d a t a s t r e a m f r o m m o b i l e s w i t h I D S n o t i n
a
r e p e a t e r ' s t a b l e a r e d i s c a r d e d .

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