User's Manual

VHF Headstation & In-Line Amplifiers
User Handbook
Handbook Nō.-50-127201FCC Issue No:-A
Date:-14/06/2005
Page:-
3 of 45
4.9.1 Description ............................................................................................................................................... 32
4.9.2 Drg. Nō. 17-006880, Controller/Monitor PCB Pin-Outs......................................................................... 33
4.10 24V Single Relay Board (80-008902) ........................................................................................................ 34
4.10.1 Description ........................................................................................................................................... 34
4.11 24V, 400W Power Supply Pack (96-300054) ............................................................................................ 34
4.11.1 Description ........................................................................................................................................... 34
4.11.2 Technical Specification......................................................................................................................... 34
4.12 STPS12045TV 60A Dual Diode Assembly................................................................................................ 35
4.12.1 Description ........................................................................................................................................... 35
4.13 MT2834ZDXK 56kBPS Modem (96-800003)........................................................................................... 35
4.13.1 Description ........................................................................................................................................... 35
5. INSTALLATION & COMMISSIONING......................................................................................36
5.1 Initial Installation Record.......................................................................................................................... 36
5.2 Antenna Installation & Gain Calculations ............................................................................................... 36
5.3 Antenna Isolation........................................................................................................................................ 37
5.4 General Remarks........................................................................................................................................ 38
5.5 Electrical Connections................................................................................................................................ 38
5.6 RF Connections........................................................................................................................................... 38
5.7 RS232 Setup ................................................................................................................................................ 39
6. MAINTENANCE .............................................................................................................................40
6.1 General Procedures .................................................................................................................................... 40
6.1.1 Quick Fault Checklist ............................................................................................................................... 40
6.1.2 Fault Finding............................................................................................................................................ 40
6.1.3 Downlink................................................................................................................................................... 41
6.1.4 Uplink ....................................................................................................................................................... 41
6.1.5 Fault repair............................................................................................................................................... 41
6.1.6 Checking service....................................................................................................................................... 42
6.1.7 Service Support......................................................................................................................................... 42
6.2 Tools & Test Equipment ............................................................................................................................ 42
6.3 Care of Modules.......................................................................................................................................... 43
6.3.1 General Comments ................................................................................................................................... 43
6.3.2 Module Removal (LNA’s, general procedure): ........................................................................................ 43
6.3.3 Module Replacement (general): ............................................................................................................... 43
6.3.4 Power Amplifiers ...................................................................................................................................... 43
6.3.5 Low Power Amplifier Replacement .......................................................................................................... 44
6.3.6 Module Transportation: ........................................................................................................................... 44
APPENDIX A INITIAL EQUIPMENT SET-UP CALCULATIONS.................................................45