User's Manual
Table Of Contents
- 1 System Overview
- 2 Features Summary
- 3 EXACT-V2 Rack
- 3.1 EXACT-V2 mechanics
- 3.2 Interface characteristics
- 3.3 Front Panel signalization (LEDs description)
- 3.4 Power requirements
- 3.5 Performances and technical characteristics
- 3.5.1 General characteristics
- 3.5.2 Control and data Ethernet interfaces
- 3.5.3 Serial control interfaces
- 3.5.4 ASI inputs / output and MPEG-TS processing
- 3.5.5 Digital modulation
- 3.5.6 Clock synchronization
- 3.5.7 RF and monitoring outputs
- 3.5.8 Digital precorrection
- 3.5.9 Power level measurement inputs and AGC
- 3.5.10 Dry contacts
- 3.6 Conformity with EC Directive
- 4 EXACT-V2 Installation
- 5 Operation
- 6 Maintenance & Troubleshooting
- Appendix A GPS Installation Recommendations
- Appendix B Example of GPS Antenna
USER
MANUAL
MPD-1611291-A
EXACT-V2 High End Rack Modulator / Exciter
3/10/2017
MPD-1611291-A
Page 89/94
While doing GPS installation and setup for a
product with an embedded GPS receiver, it is
highly recommended to respect the following
conditions:
Considering:
Pgps as the power of the incoming signal
(nominal value over the covered area)
Ga as the gain of the dedicated GPS antenna
Gc as the losses of the several RF components
(cable, connectors,…)
Gt as the total Gain of the RF chain
Gt = Ga + Gc
The user shall respect the following condition:
20 dB ≤ Gt ≤ 35 dB
In order to fulfill this condition, and if Gt is not sufficient, the user can also add a line
Amplifier, as shown in the drawing below:
with Gt = Ga + Gc + Gamp
Warning: For the GPS reception to be optimal, it is highly recommended to place
the Antenna in an open, free space (top of the building, etc.)