P Owe R P Rof Ile T Iles - Aeroflex 3900 Series Option Manual

Po we r P r o fi l e T i l e s
TET RA D M pro vides t hree diff eren t measur ement tile s for examini ng t he r esults of po wer
measure m ents. Po wer measur ements are calculat ed by measuri ng th e pow er of each bu rst thr ough
a T ETR A filte r a t th e symbol point over the usable part of the bur st . The Pow er Pr ofile Full and
Pr ofile Ra mp s Tile s pro vi de aver age, maximum an d minimum me asuremen t r esults. T he aver age
rea ding sho ws t he p ower measur ement taken over a de fined number of bur st s.
D u e t o t h e h i g h d y n a m i c r a n g e r e q u i r e m e n t s o f t h i s p a r t i c u l a r t e s t , s e t t h e
Level f i e l d o n t h e
Gain C ontr ol)
Pro f il e Ful l Til e
T h e P r o f i l e F u l l T i l e s h o w s i n g r a p h i c f o r m , t h e p r o f i l e o f t h e s i g n a l b u r s t s t h a t m a k e u p t h e
s i gn a l f r o m a T E T R A M o b i l e . T h e r a m p - u p , m i d d l e a n d r a m p - d o w n o f t h e b u r s t a r e s h o w n , w i t h
a p r o f i l e m a s k d e f i n i n g t h e a c c e p t a b l e s i g n al l e v e l s o v e r t he b u r s t p e r i o d .
F i g . 9 - 7 T E T R A D M P o w er P r o f i l e F u l l T i l e - M a x i m i z e d V i e w
G r ap h A xe s
T h e X a x i s i s c a l i b r a t e d i n S ym b o l P o i n t s o v e r t h e R a m p U p a n d R a m p d o w n p e r i o d s a n d
t h e Y a x i s i s c a l i b r a t e d i n d B c . E a c h b u r s t i s 2 3 5 s y m b o ls i n le n g t h . T h e P r o f i l e F u l l T i l e
d i s pl a y s I n i t i a l b u r st t y p e r e a d i n g s ; h o w e v e r , t h e g r a p h d o e s n o t d i s p l a y I n i t i a l b u r s t s .
I n i t i a l b u r s t s a r e o n ly d i s p l a y e d o n t h e
P o w e r M ea s ure m ent
T h e d i s p l a ye d m a s k l i m i t s, w h i c h a r e t h e P a s s / F a i l c r i t e r i a f o r t h e P o w e r P r o f i l e
M ea s u r e m e n t , a r e c o n f i g u r e d o n t h e
l i m i t s a r e s e t t o D i sa b l e d , t h e m a s k i s n o t d i s p l a y e d a n d t h e p r o f i l e P a s s / F a i l a s s e s s m e n t is
n o t p e r f o r m e d .
Bu r s t P o w er Re su l t s
T h e s e r e s u l t s o f t h e T x M e a s u r e m e n t s s h o w n o n t h e P r o f i l e F u l l T i l e ar e i d e n t i c a l t o t h e
r e a d i n g s o n t h e T x M e a s u r e m e n t s T i l e . I n i t i a l b u r s t t y p e r e a d i n g s a r e o n l y d is p l a y e d o n t h e
Pr ofile I nitial T
F u l l T i l e t h e d i s p l a y g r a p h s r e m a i n s e m p t y .
Uni t s
T o g g l e b u t t o n a l l o w s u s e r t o s e l e c t d B m o r W a s u n i t o f m e a s u r e m e n t f o r d i s p l a y f i e l d s.
T E T R A D M S y s t e m
RF Set tings T ile t o t h e m o b i l e ' s t r a n s m i t p o w e r l e v e l a n d t u r n
O N .
ile. W h e n " I n i t i a l " i s s e l e c t e d f r o m t h e B u r s t d r o p - d o w n m e n u o n t h e P r o f i l e
P rof ile I nitia l Til e.
Tx Me asuremen ts Limit s C onfig urat ion T ile
9-8
E xpected Pow er
A GC (A utomat ic
. I f t h e s e