Comtech EF Data DST Operator's Manual page 14

Digital Satellite Terminal System
Preface
3.5 BUC Installation .......................................................................................................................... 3-6
3.5.1 Mounting Kits............................................................................................................................. 3-6
3.5.2 Installation ................................................................................................................................. 3-8
CHAPTER 4. LOW NOISE BLOCK DOWN CONVERTER................................................................ 4-1
4.1 Description................................................................................................................................... 4-1
4.1.1 Options ...................................................................................................................................... 4-2
4.2 LO, Mix and Spectrum Settings (LNB) ...................................................................................... 4-3
4.2.1 C-Band ...................................................................................................................................... 4-3
4.2.2 Ku-Band .................................................................................................................................... 4-4
4.3 Low Noise Block (LNB) Converter ............................................................................................ 4-5
4.4 LNB Installation ........................................................................................................................... 4-7
4.4.1 LNB Tooling............................................................................................................................... 4-7
4.4.2 C-Band ...................................................................................................................................... 4-7
4.4.3 Ku-Band .................................................................................................................................... 4-7
4.4.4 Mounting Kits............................................................................................................................. 4-8
4.4.5 LNB Installation ......................................................................................................................... 4-8
4.4.6 TRF Installation ......................................................................................................................... 4-9
4.5 Cable Installation ...................................................................................................................... 4-10
CHAPTER 5. OPERATION ................................................................................................................. 5-1
5.1 Initial Operation ........................................................................................................................... 5-1
5.1.1 Prior to Turning On Power ........................................................................................................ 5-1
5.1.2 Initial Power Up - Modem Only................................................................................................. 5-2
5.2 LO, Mix and Spectrum (Inversion) Settings ............................................................................. 5-3
5.3 Applying Power To The BUC ..................................................................................................... 5-4
5.4 Initial Operation of the Modem with the ODU and LNB........................................................... 5-5
APPENDIX A. SELECTING LNBS FOR USE WITH L-BAND MODEMS .......................................... A-1
A.1 Introduction ................................................................................................................................ A-1
A.1.1 Comparing LNBs ...................................................................................................................A-1
A.1.2 Carrier Spacing And Frequency Uncertainty ........................................................................A-2
A.1.3 Frequency Uncertainty Budget..............................................................................................A-3
A.1.3.1 Uncertainty For 0.02 ppm Modem and 0.02 ppm BUC.....................................................A-3
A.1.3.2 Uncertainty for 1 ppm Modem and 0.02 ppm BUC ...........................................................A-5
INDEX ........................................................................................................................................................ I-1
iv
Revision 1
MN/DST.IOM