Tandy 1000 SL Technical Reference Manual page 401

Lobe p a t t e r n
(TP7,8)
A B A B
Notes: 1.
The
l o b e p a t t e r n r a t i o i s c a l i b r a t e d i n t h e SKA according t o t h e
following e x p r e s s i o n .
Lobe p a t t e r n r a t i o =
A-B
a f t e r c a l i b r a t i o n Larger one o f
A
&
B 100-Calibration
2 . If
a c a l c u l a t e d value w i t h t h e above e x p r e s s i o n i s p o s i t i v e , t h e
p o l a r i t y i s p l u s , while t h e p o l a r i t y i s minus when a value i s
n e g a t i v e .
( F i g . 3209) C a l i b r a t i o n
of
alignment l o b e p a t t e r n
INDEX
o u t p u t s i g n a l
' - 1
7
I
Index b u r s t (TP4,S)
F t
Index b u r s t timing
Notes:
1.
The index timing i s c a l i b r a t e d i n t h e
SKA
according t o t h e
following e x p r e s s i o n .
C a l i b r a t e d timing = t
-
C a l i b r a t i o n value (us)
p o l a r i t y
i s p l u s , while t h e p o l a r i t y i s minus when a v a l u e is
n e g a t i v e .
2. I f a c a l c u l a t e d v a l u e w i t h t h e above e x p r e s s i o n i s p o s i t i v e , t h e
(Fi9.3210) C a l i b r a t i o n of index b u r s t timing
-
3225
-