User Manual
Table Of Contents
- 1.1 0BPurpose
- 1.4 1BReferenced Documentation
- 2.1 2BProST Frequency Ranges
- 2.2 3BProST-2 Frequency Ranges
- 2.3 4BArchitecture
- 2.4 5BModels
- 3.1 6BPackage Contents
- 3.2 7BMinimum PC Requirements
- 3.3 8BRequired Tools
- 3.4 9BRadio Site Planning
- 4.1 10BProST Physical Description
- 4.2 11BSDA-1 Physical Description
- 4.3 12BSDA-4S Type II and SDA-4S/VL Type II (Optional)
- 4.4 13BSDA-4SDC Type II (Optional DC power supply)
- 5.1 14BWall Mounting
- 5.2 15BPole-Mounting
- 5.3 16BMounting the SDA-4S
- 6.1 17BConnecting to IDU
- 6.2 18BConnecting to LAN Network
- 7.1 19BDC Power Source
- 7.2 20BConnecting the SDA-4SDC Type II (Optional DC adapter)
- 7.3 21BAC Power Source
- 8.1 22BHousing the Connectors
- 8.2 23BConnecting to the SDA-4SDC
- 9.1 24BPolyPhaser Wiring Diagram
- 9.2 25BLightning and Surge Protection Connection Scenarios
- 10.1 26BLED Status
- 12.1 27BTroubleshooting
- 12.2 28BGlossary of Terms
- 12.3 29BRevision History
- 12.4 30BContact Information
ProST Hardware Installation User Guide
Page 26 Commercial in Confidence UWB-D00111 Rev K
Figure 8 - Fresnel Zones
Fresnel Zones define the amount of clearance required from obstacles. These zones are
composed of concentric ellipsoid areas surrounding the straight-line path between two antennas.
Thus, the zone affects objects to the side of the path and those directly in the path. The first
Fresnel Zone is the surface containing every point for which the distance from the transmitter to
any reflection point on the surface point and then onto the receiver is one-half wavelength longer
than the direct signal path.
One method for clearing the Fresnel Zone is by increasing the antenna height.
The first Fresnel Zone radius is calculated by the following equation:
Figure 9 - Fresnel formula
Figure 10 - Fresnel Zones
Typically, at least 60% clearance of the first Fresnel Zone is considered as LOS. To ensure the
ground does not enter into the first Fresnel Zone, both antennas (i.e. at Base Station and
subscriber) must be mounted at least 0.6 x r meters above ground level (or clutter level).
Examples, using the formula above,