Comtech EF Data MIDAS Version 4.X NMS Configuration - Manual (Page 146)

MIDAS 4.X NMS Configuration, Rev. 6
A-14 Frequency Translations
Control Channel
Setup
Refer to the Ku Control Channel setup for an explanation determining 30 kHz for Control
Channel carrier spacing. Follow the same formula to determine where to place the center of
the Outbound Channel at the beginning of the Space segment.
Center Frequency of
the Outbound =
Frequency of beginning of Space Segment + (Symbol Rate * 0.5 * Carrier Spacing)
(77.9 MHz + (0.0192 * 0.5 * 1.5625))
Center Frequency of
the Outbound =
77.9 MHz + 0.015
Center Frequency of
the Outbound =
77.915 MHz
Find the center frequency of the Inbound Control Channel by adding the 30kHz spacing:
Center Frequency of
the Inbound =
Center Frequency of the Outbound + Carrier Spacing
(77.915 + 0.030 MHz)
Center Frequency of
the Inbound =
77.945 MHz
Select System Administrator. Configure the Outbound and Inbound Control Channel Fre-
quencies.
Note: Refer to Section 2, Initial Setup Procedures for descriptions of additional Control
Channel and LinkSync
 parameters.