Garmin GPS 400W Installation Manual page 33

400w series
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F i g u r e 2 - 1 . G P S A n t e n n a a n d U n i t I n s t a l l a t i o n C o n s i d e r a t i o n s
I f a C O M a n t e n n a i s f o u n d t o b e t h e p r o b l e m , a 1 . 5 7 5 4 2 G H z n o t c h f i l t e r ( G a r m i n P / N 3 3 0 - 0 0 0 6 7 - 0 0 ) m a y
b e i n s t a l l e d i n t h e V H F C O M c o a x , a s c l o s e t o t h e C O M a s p o s s i b l e . T h i s f i l t e r i s n o t r e q u i r e d f o r t h e
G N C 4 2 0 W a n d G N S 4 3 0 W t r a n s m i t t e r s .
I f a C O M i s f o u n d t o b e r a d i a t i n g , t h e f o l l o w i n g c a n b e d o n e :
1 . R e p l a c e o r c l e a n t h e V H F C O M r a c k c o n n e c t o r t o e n s u r e g o o d c o a x g r o u n d .
2 . P l a c e g r o u n d i n g s t r a p s b e t w e e n t h e 4 0 0 W S e r i e s u n i t , V H F C O M a n d a g o o d g r o u n d .
3 . S h i e l d t h e V H F C O M w i r i n g h a r n e s s .
2 . 4 . 7 C O M , V O R / L O C , a n d G l i d e s l o p e A n t e n n a I n s t a l l a t i o n I n s t r u c t i o n s
I n s t a l l t h e C O M , V O R / L O C , a n d G l i d e s l o p e a n t e n n a s a c c o r d i n g t o t h e m a n u f a c t u r e r ' s r e c o m m e n d a t i o n s .
A v o i d r u n n i n g o t h e r w i r e s a n d c o a x i a l c a b l e s n e a r t h e V O R / L O C a n t e n n a c a b l e .
4 0 0 W S e r i e s I n s t a l l a t i o n M a n u a l
1 9 0 - 0 0 3 5 6 - 0 2
P a g e 2 - 5
R e v . A

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Gnc 430wGnc 430awGnc 420awGnc 420w

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