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13.6.1 Antenna Choice (FCC and Industry Canada Regions Only)
The antennas which can be deployed with the Connectorized 500 Series Bridge are shown in
Section 13.6.3 "Antennas for USA / Canada – 5.8 GHz" and Section 13.6.4 "Suggested
Antennas - 5.4 GHz".
For FCC and Industry Canada, the PTP500 Series Bridge has been designated to operate
with the antennas listed in Section 13.6.3 "Antennas for USA / Canada – 5.8 GHz" and
Section 13.6.4 "Suggested Antennas - 5.4 GHz", and having a maximum gain of 37.7 dB
(34.9 dB for PTP 54500 product variant). Antennas not included in these tables or having a
gain greater than 37.7 dB (34.9 dB for PTP 54500 product variant) are strictly prohibited for
use with this device. The required antenna impedance is 50 ohms.
13.6.2 Cable Losses (FCC Regions Only)
The FCC approval for the product is based on tests with a cable loss between the units of
approximately 1.2dB at 5.8GHz. The use of lower cable losses would result in the installation
being outside the FCC rules.
As an indication, 1.2dB of cable loss corresponds to the following cable lengths excluding
connector losses (source: Times Microwave).
Cable
LMR100
LMR200
LMR300
LMR400
LMR600
13 PTP 500 Series Bridge – Connectorized Model
Length for 1.2dB Cable Loss at 5.8GHz
(ft)
1.9
4.6
7.25
11.1
16.5
Table 26 - Cable Losses per Length
174
(m)
0.6
1.4
2.2
3.4
5.0
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