User's Manual

Spread Spectrum Modem Wireless Data Transceiver Installation Guide
LIG0003AD Rev A Version 6.0 5
900MHz Omni-directional Antennas
Gain Manufacturer Manufacturer
Model Number
FreeWave
Model Number
6dBi Antennex FG9026 EAN0906NF
5dBi Antennex
Maxrad
EB8965C
BMEFC8985HD
EAN0905WC
5.15dBi Maxrad MAX-9053 EAN0900WC
2dBi Mobile Mark PSKN3-925S EAN0900SR
2dBi Mobile Mark PSTG0-915SE EAN0900SQ
2dBi Astron ADP91BM ---
WARNING:
Any antennas placed outdoors must be properly grounded. Use extreme
caution when installing antennas and follow all instructions included with the antennas.
Table 1 below provides the maximum output power settings for FreeWave transceivers at given
antenna gain (10 dB and 6 dB Yagi antennas are given as an example) and cable loss
combinations. Please note that it is the installer’s responsibility to ensure that the emission
limits are not exceeded.
Table 1: Output Power Settings at given Antenna Gain &
Cable Loss combination.
Cable Loss
1dB 2dB 3dB 4dB
Antenna 10dB 5 6 7 9
Gain 6dB 9 9 9 9
Table 2 below shows how the RFXmitPower settings on the radio correspond to the EIRP of the
transceiver-cable-antenna combination for a 10dB Yagi antenna at different cable loss values.
Table 2: EIRP for 10dB Yagi Antenna Cable loss vs. RF
Xmit Power Setting.
Cable Loss
1dB 2dB 3dB 4dB
RF Xmit 10 39.00 38.00 37.00 36.00
Power 9 37.80 36.80 35.80 34.80
8 36.30 35.30 33.30 32.30
7 34.40 33.40 32.40 31.40
6 32.20 31.20 30.20 29.20
Shaded area indicates combinations where EIRP limitations exceed FCC regulations
and RF Xmit Power must be reduced.