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13.2.2 Antenna Choices – 5.8 GHz
The integrated antenna has a gain of 23 dBi.
In non-FCC regions antenna choice is not restricted but any region specific EIRP limit must
be obeyed by reducing the maximum Transmit power
Region Codes".
•
In FCC regions external antennas from the list in Section 13.6.3 "Antennas for USA /
Canada – 5.8 GHz" can be used with the Connectorized version of the PTP 500 Series
Bridge. These are approved by the FCC for use with the product and are basically
constrained by the following limits:
•
Single/Dual Polarization Parabolic Dish Antennas – up to 37.7dBi per polarization or
antenna.
In FCC regions when using external antennas – cable loss between the connectorized
version of the PTP 500 Series Bridge and the antenna ports must not be less than 1.2dB.
When operating PTP58500 with a 5MHz channel bandwidth and with dish antennas larger
than 4 foot diameter, the maximum operating power must be reduced to 24dBm (3dB
reduction) to ensure meeting FCC requirements.
13.2.3 Suggested Antenna Choices – 5.4 GHz
The integrated antenna has a gain of 23 dBi.
External antennas from the list in Section 13.6.4 "Suggested Antennas - 5.4 GHz" can be
used with the Connectorized version of the PTP 500 Series Bridge. These are approved by
the FCC for use with the product and are basically constrained by the following limit:
•
Single/Dual Polarization Parabolic Dish Antennas – up to 34.9dBi per polarization or
antenna.
However, the Maximum Transmit Power must be reduced to avoid exceeding the EIRP
21
limits
.
In FCC regions when using external antennas – cable loss between the connectorized
version of the 500 Series Bridge and the antenna ports must not be less than 1.2dB
21
Maximum Transmit Power Allowed = EIRP Limit – Antenna Gain + Cable Losses; set the power to the 1dB
value lower than the actual value calculated.
13 PTP 500 Series Bridge – Connectorized Model
21
, see Section 5.2 "Licenses and
167
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