Comtech EF Data DD2401 - Manual (Page 7)

DD2401 Satellite Demodulator Table of Contents
MN-DD2401 – Rev. G vii
Table of Contents ToC
Section 1 - Introduction ............................................................................................. 1-1
1.0 Description ______________________________________________________________ 1-1
1.1 Features/Options Installed at Time of Order ____________________________________ 1-2
1.1.1 Feature Upgrades _______________________________________________________ 1-2
1.1.2 Radyne Installed Options _________________________________________________ 1-2
1.1.3 Hardware Options _______________________________________________________ 1-2
1.2 Function Accessibility _____________________________________________________ 1-2
Section 2 - Installation ............................................................................................... 2-1
2.0 Installation Requirements __________________________________________________ 2-1
2.1 Unpacking ______________________________________________________________ 2-2
2.2 Removal and Assembly ____________________________________________________ 2-2
2.3 Mounting Considerations ___________________________________________________ 2-3
2.4 Demodulator Checkout ____________________________________________________ 2-3
2.4.1 Initial Power-Up ________________________________________________________ 2-5
Section 3 - Theory of Operation ................................................................................ 3-1
3.0 Theory of Operation _______________________________________________________ 3-1
3.1 Applications _____________________________________________________________ 3-1
3.1.1 SCPC Point-to-Point Links ________________________________________________ 3-1
3.1.2 SCPC Point to Multi-Point Links in a Broadcast Application ______________________ 3-2
3.1.3 DAMA (Demand Assigned Multiple Access) __________________________________ 3-2
3.1.4 TDMA (Time Division Multiple Access) Remote Site Application ___________________ 3-2
3.2 DD2401 Reed-Solomon ___________________________________________________ 3-4
3.2.1 Reed-Solomon Codec ___________________________________________________ 3-4
3.2.2 Reed-Solomon Operation in the DD2401 Demodulator __________________________ 3-4
3.2.3 Reed-Solomon Code Rate ________________________________________________ 3-4
3.2.4 Interleaving ____________________________________________________________ 3-4