User's Manual

3. Pre-Installation Procedures 3-8

+5 dBm – 14.6 dB = -9.6 dBm (-10 dBm).

Table 3-3 also shows transmit power settings for various antenna dish sizes.

For link budget,

EIRP(Avg) dBm = 37 dBi + Tx Power Setting (dBm)

Table 3-3. Maximum Power Settings for 5.3GHz U-NII Band Operation (US)

Maximum Tx Power Setting, dBm

Antenna

Diameter

Antenna

Gain, dBi*

(example)

1 Channel

Mode

(30MHz

BW)

2 Channel

Mode

(20MHz

BW)

3 Channel

Mode

(13.3MHz

BW)

6 foot dish 37.6 -10 -11 -12

4 foot dish 34.6 -7 -8 -9

3 foot dish 31.2 -3 -4 -5

2 foot dish 28.0 0 -1 -2

1.5 foot dish 25.3 +3 +2 +1

Internal 23.0 +5 +4 +3

*NOTE: Many antenna manufacturers rate antenna gain in dBd (dB referred to a dipole

antenna) in their literature. To convert to dBi, add 2.15 dB.

Power settings for other modes of operation can be calculated as follows:

EIRP(Avg) dBm = Antenna Gain (dBi) + Tx Power

Transmitter radiated power is limited in the receiver benefits from gain of larger

antennas.