GE 900 MHz, Справочное руководство

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MDS 05-2708A01, Rev. F MDS TransNET Ref. Manual 13
For convenience, Table 4 lists several antenna system gains and shows the
maximum allowable power setting of the radio. Note that a gain of 6 dB or
less entitles you to operate the radio at full power output—30 dBm (1 watt).
Table 4. Antenna system gain vs. power output setting (USA)
for 900 MHz models to a36 dBm EIRP
Antenna System Gain
(Antenna Gain in dBi
a
minus Feedline Loss in dB
b
)
a. Most antenna manufacturers rate antenna gain in
dBd in their literature. To convert to dBi, add
2.15 dB.
b. Feedline loss varies by cable type and length. To
determine the loss for common lengths of feedline,
see
Table 2 on Page 11 .
Maximum Power
Setting
(in dBm)
EIRP
(in dBm)
6 (or less) 30 36
8 28 36
10 26 36
12 24 36
14 22 36
16 20 36
Table 5. Antenna system gain vs. power output setting (USA)
for 2400 MHz models to a36 dBm EIRP
Antenna System Gain
(Antenna Gain in dBi
a
minus Feedline Loss in dB
b
a. Most antenna manufacturers rate antenna gain in
dBd in their literature. To convert to dBi, add
2.15 dB.
b. Feedline loss varies by cable type and length. To
determine the loss for common lengths of feedline,
see
Table 2 on Page 11 .
Maximum Power
Setting
(in dBm)
EIRP
(in dBm)
2 dB 27 29
10 dB 26 36