User's Manual
Table Of Contents
- PTP 250 User Guide
- Copyrights
- Safety and regulatory information
- Contents
- List of Figures
- List of Tables
- About This User Guide
- Chapter 1 Product description
- Chapter 2 Planning considerations
- Chapter 3 Legal information
- Chapter 4 Reference information
- Chapter 5 Installation
- Chapter 6 Configuration and alignment
- Chapter 7 Operation
- Chapter 8 Troubleshooting
- Testing link end hardware
- Testing when PoE LEDs do not illuminate correctly
- Testing after a lightning strike
- Test flowcharts
- AC LED is off
- AC LED is flashing
- PORT LED is off
- PORT LED is flashing
- Test Ethernet packet errors reported by ODU
- Test Ethernet packet errors reported by managed switch or router
- Test ping packet loss
- Test resistance at the PoE end of the drop cable
- Testing the radio link
- Testing link end hardware
- Glossary
Antenna specifications Chapter 4 Reference information
phn-2182_002v000
4-14
May 2011
Antenna specifications
This section contains specifications of the antennas that are approved by the FCC for
use with the connectorized ODUs.
Antenna selection criteria
The main selection criterion is the required antenna gain. The secondary criterion is
the ease of mounting and alignment. For example, the Radio Waves Parabolic dishes
are supplied with a mount that allows adjustment for alignment independent of the
actual antenna mounting. This type of antenna is much easier to align than those that
have to be rotated around the mounting pole for alignment.
Non-FCC regions
In non-FCC regions, antenna choice is not restricted, but any region specific EIRP limit
must be obeyed by reducing the maximum transmit power, see Calculating EIRP for
c
onnectorized units on page 4-30.
FCC regions
In FCC regions, antenna choice is restricted as described in 5.8 GHz FCC antenna
restrictions on page 4-15.
The m
aximum permitted antenna gain depends upon product variant and channel
width, as specified in Calculating EIRP for connectorized units on
page 4-30.