User Guide

Edge
TM
Multipoint and Quickbridge - Safety and Regulatory Guide 12
2
Information for Professional Installer
This chapter contains information on the following:
• Information for Professional Installers
– Adjusting Tx Output Power
– Antenna Gain Configuration
2.1 Information for Professional Installers
All products must be professionally installed, and the transmit power of the system must be adjusted by the professional
installers to ensure that the system EIRP is in compliance with the limit specified by the regulatory authority of the country of
application.
2.1.1 Adjusting Tx Output Power
NOTE: When the system is set to transmit at the maximum power, professional installers must ensure that the
maximum EIRP limit is not exceeded. To achieve this, they may have to add attenuation between the device and
the antenna when a high gain antenna is used.
Use the following formula in combination with the table of EIRP limits in US and EU countries to calculate system transmit
power (based on EIRP limits) of these countries:
Tx Power (dBm) = EIRP Limit (dBm) + FL (dB) – G (dB)
where,
Tx Power = Output power measured at the antenna input
EIRP Limit = EIRP limits specified below
FL = Feeder loss including loss of connectors
G = Antenna Gain
Transmit output power can be reduced by using Automatic Transmit Power Control (ATPC), or manually setting the
Transmit Power Control (TPC). For information to automatically or manually set TPC, refer to Software Management
Guide available at http://support.proxim.com.
Regulatory Domain Frequency (MHz) Max EIRP (dBm)
PTP Mode (QB) PTMP Mode(MP)
US SKU
United States 5GHz 5150 ~ 5250 (Non-DFS) 30 30
5250 ~ 5350 (DFS)
5500 ~ 5725 (DFS)
5725 ~ 5850 (Non-DFS)
United States 5.8GHz 5725 ~ 5850 (Non-DFS) 53 36(Base Station),
53(Subscriber Unit)
United States1 (5.3, 5.4 GHz) 5250 ~ 5350 (DFS) 30 30
5500 ~ 5725 (DFS)