User Manual

Installation and Initialization AP-4000/4000M/4900M User Guide

Hardware Installation

Connecting Antenna(s) to the AP-4900M for 4.9 GHz Operation

To attach an external antenna to the AP-4900M, attach the selected antenna to the pigtail attachment connected to the

AP’s antenna connector 3 (see Figure 2-10).

For a list of recommended antennas, see http://www.proxim.com/products/wifi/accessories.

Figure 2-10 AP-4900M External Antenna Connection

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, Canada, 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

Band EIRP Limit (dBm)

USA and Canada EU

2.4 - 2.4835 GHz (Point-to-Multipoint 36 20

2.4 - 2.4835 GHz (Point-to-Point) When G < 6: 36

When G >/= 6, use the following

equation:

36 -

4.9 GHz 10 MHz channel: 26

20 MHz channel: 29

5.15 - 5.25 GHz 23 23

5.25 - 5.35 GHz 30 23

5.47 - 5.725 GHz 30 30

5.725 - 5.850 GHz (Point-to-Multipoint) 36 14

5.725 - 5.850 GHz (Point-to-Point) No limit 14

G6–

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