Comtech EF Data MIDAS Version 4.X Basic Configuration User Manual
Page 144
MIDAS 4.2 Basic Configuration, Rev. 1
A–2 Maintenance
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1 1 7 0 0
F c = 1 1 7 2 0 1 1 7 4 0
K u - B a n d
7 0 M H z I F
5 2 M H z F c = 7 0 M H Z 8 8 M H z
L - B a n d
3 6 M H Z
G u a r d B a n d
1 1 7 0 0 - 1 1 7 0 2 K u 1 1 7 3 8 - 1 1 7 4 0
9 5 0 - 9 5 2 L 9 8 8 - 9 9 0
9 5 0
F c = 9 7 0 9 9 0
Figure A-1. Ku-Band Frequency Translations
K
K
u
u
-
-
B
B
a
a
n
n
d
d
F
F
r
r
e
e
q
q
u
u
e
e
n
n
c
c
y
y
C
C
o
o
n
n
v
v
e
e
r
r
s
s
i
i
o
o
n
n
F
F
o
o
r
r
m
m
u
u
l
l
a
a
s
s
The relationship between Ku-Band and L-Band frequencies is:
Transponder RX Center – Downlink Factor = L-Band
[11.720 GHz – 10.750 GHz = 970 MHz]
In order to convert an IF frequency to L-Band, the conversion factor is:
Conversion Factor = Transponder RX Center – Downlink Factor – IF
Conversion Factor = 11720 MHz – 10750 MHz – 70 MHz
Conversion Factor = 900 MHz