User's Manual
Table Of Contents
- Installation Guide for Epoch-S02
- Environmental requirements
- Warnings and Hazards
- Tools and Recommendations for Installation
- Epoch-S02 Parts List
- Step by Step Instructions for Installation
- User Manual V1.1 using OMS V4.01
- Menu Structure
- Using the Epoch-S02 OMS V4.01
- Alarms
- Default Control Settings
- Maintenance Guide for Epoch-S02 OMS V4.01
- Periodic Inspection Checklist
- Preventive Measures for Optimal Operation
- Troubleshooting
- Epoch-S02 OMS V4.01 Scenarios
- Heartbeat Scenarios
- Warranty and Repair Policy
- General Warranty
- Specific Product Warranty Instructions
- A.1 Minimum Requirements
- A.2 Epoch-S02 OMS V4.01 Installation/Startup
- Appendix B: Specifications
Epoch-S02 RF Repeater
User Manual V1.1
1. Installation Guide for Epoch-S02
1.1 Environmental requirements
1.1.1 Antenna Separation / Isolation
Separation between antennas is necessary to prevent oscillation.
Oscillation occurs when the signal entering the system continually
reenters, due to the lack of separation between the input and output
antennas. In other words, the signal is being fed back into the system.
This creates a constant amplification of the same signal. As a result, the
noise level rises above the signal level.
Donor
To prevent feedback, the donor and server antennas must be separated
an appropriate distance to provide sufficient isolation. Isolation is
attained by separating antennas a sufficient distance so that the output
of one antenna does not reach the input of the other. This distance is
dependent on the gains of the repeater and the antennas.
A sufficient isolation value is 13 ~ 15 dB greater than the maximum gain
of the repeater. For example, if the gain of the repeater is 50 dB, then an
isolation of 63 ~ 65 dB or greater is required. In the same manner,
because the Epoch-S02 has a maximum gain of 90 dB, it requires an
isolation of at least 103 ~ 105 dB.
Server
RF Repeater
Figure 1.1.1 RF Repeater Oscillation
Advanced RF Technologies, Inc. Proprietary Document Page 5 of 31