GE GFK-2489 - Manual (Page 146)

GFK-2489 Chapter 6 Installation 6-13
6
Power Setpoint), or introduce additional feedline loss. The EIRP of the antenna system
should never exceed 20 dBi.
For convenience, the table below lists several antenna system gains and shows the maximum
allowable power setting of the radio. Note that a gain of 0 dB or less entitles you to operate
the radio at full power output +20 dBm (100 mW). To convert dBm to Watts, refer to the
conversion chart in chapter 8.
Antenna System Gain Maximum Power
(Antenna Gain in dBi* Setting EIRP
minus Feedline Loss in dB†) (in dBm) (in dBi)
0 (or less) 20 20
3 17 20
6 14 20
9 11 20
10 10 20
* Most antenna manufacturers rate antenna gain in dBd in their literature. To convert to dBi,
add 2.15 dB.
† Feedline loss varies by cable type and length. To determine the loss for common lengths of
feedline as described previously in this chapter.