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WaveNet Link AX Installation and Operations Manual
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3.1.2 EIRP Calculations in the 5.7 GHz Band
The following is an excerpt from CFR 47 Part 15.407 (a)(2):
For the band 5.725-5.825 GHz, the peak transmit power over the frequency band of operation
shall not exceed the lesser of 1 W or 17 dBm+10logB, where B is the 26-dB emission bandwith
in MHz. In addition, the peak power spectral density shall not exceed 17 dBm in any 1-MHz
band. If transmitting antennas of directional gain greater than 6 dBi are used, both the peak
transmit power and the peak power spectral density shall be reduced by the amount in dB that
the directional gain of the antenna exceeds 6 dBi. However, fixed point-to-point U-NII devices
operating in this band may employ transmitting antennas with directional gain up to 23 dBi
without any corresponding reduction in the transmitter peak output power or peak power
spectral density. For fixed point-to-point U-NII transmitters that employ a directional antenna
gain greater than 23 dBi, a 1 dB reduction in peak transmitter power and peak power spectral
density for each 1 dB of antenna gain in excess of 23 dBi would be required. Fixed, point-to-
point operations exclude the use of point-to-multipoint systems, omni directional applications,
and multiple collocated transmitters transmitting the same information. The operator of the U-
NII device, or if the equipment is professionally installed, the installer, is responsible for ensuring
that systems employing high gain directional antennas are used exclusively for fixed, point-to-
point operations.
Based on the above rules, the Link AX (for the 5.7 GHz radio) must be configured by the installer
to operate using the conditions in Table 3.2 below. These values assume a nominal loss of 1.0
dB cable loss for the Wireless Inc. supplied RF cable (6 foot length) that connects the ODU to
the external antenna.
Table 3.2 - Maximum Transmit Power Level Setting vs. Antenna Type (for compliance with FCC EIRP
limits) in the 5.7 GHz Band, Orignial and July 31, 1998 rules
Содержание WaveNet Link AX
Страница 68: ...60 Wavenet Link AX Installation and Operations Manual 4 2 2 Wall Mount Figure 4 25 Ground Connection TBA ...
Страница 70: ...62 Wavenet Link AX Installation and Operations Manual ...
Страница 74: ...66 WaveNetLinkAXInstallationandOperationsManual ...
Страница 78: ...A 4 WaveNet Link AX Installation and Operations Manual ...
