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.
| Chapter 6 Installation |
