Comtech EF Data MIDAS Version 4.X Basic Configuration - Manual (Page 144)

MIDAS 4.2 Basic Configuration, Rev. 1
A–2 Maintenance
Menu
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