Comtech EF Data MIDAS Version 4.X Basic Configuration - Manual (Page 151)

MIDAS 4.2 Basic Configuration Rev. 1
Maintenance Menu A–9
3 700 F c = 372 0 3 740
C -B a n d
7 0 M H z IF
52 M H z Fc = 70 M H z 88 M H z
L -B a n d
36 M H Z
G u a rd B a n d
37 0 0-3 7 0 2 C 37 3 8 -3 74 0
1 41 0 -14 12 L 1 4 4 8 -14 5 0
1410 Fc = 1430 1450
Figure A-4. C-Band Frequency Translations
C C - - 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
C-Band (with High-Side Injection) follows similar frequency conversion as
Ku-Band, except for the following: the effect of the High-Side Injection will
invert the L-Band spectrum in relation to the RF and IF spectrums. [This ex-
hibits that the beginning of transponder has a lower frequency than the end of
the transponder at RF and IF, but the opposite will be true at L-Band; the be-
ginning will be a higher frequency than the end of the transponder.]