Viavi ALT-8000 Getting Started Manual page 28

Radio altimeter flight line test set
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ST E P
PR OC ED U R E
2 .
Se l e c t Ru n K ey to s ta r t s im ul a t io n . A lt i tu d e P a u s e k e y i s
d isp l a ye d ( Fi g . 1 6 ).
Fi g. 15 Al titude P ause Key
3 .
Co n fi r m A i rcra f t a l ti t ud e in d i c a to r t ra c ks a lt i tu d e
s mo o th l y f ro m S ta r t Al ti t u d e to S t op Al ti t u de , a n d t h at n o
in d i ca to r f l ag i s i n v i e w.
A LT -8 0 0 0 G e tti n g St a rt ed Ma nu a l
S T E P
N O T E:
S u d de n i n d i c at o r di sp l a y o f a gr o u nd h e i g h t i s i n d i cat i ve
o f a n a ir c ra f t a nt e n n a g ro u n d p l a n e b o n d in g pr o b le m o r
R F f ee d e r ca b le t er mi na t i o n p ro b l e m, re su l ti n g i n
l e a k a ge b e tw ee n TX an d RX a n t en n a s. T h i s u su a ll y
ma n i fe st s a t h i g h e r al t i tu d e w h en th e re f le ct e d T X p o we r
s e e n b y t he re ce i v e r fa l ls b e lo w t h e l e ve l o f l e aka g e .
4 .
T o p a u se a l t it u d e a t a n y p o i n t s e l ect Al ti tu de Pa u s e
5 .
S e le ct A lt it u de Re s u me k e y t o r e s u me si mu la t i o n f ro m
c u r re n t a l ti tu d e .
2 7
PR O C ED U RE
Co nt ro l
Cu rr e nt Al t it u d e = d i spl a y s cur re n t t e st se t
simu l a te d a lt i tu d e
k e y.
Al t it u d e ma y n o w b e ma n u al s le w e d u s in g Da ta / Sl e w
Ba r o r Ro t a ry Kn o b .

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