User's Manual

Table Of Contents
13 Connectorized PTP 600 Series Bridge
256
13.6.1 Cable Losses (FCC Regions Only)
The F
CC approval for the product is based on tests with a cable loss between the units of not
less than 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).
Table 42 - Cable Losses per Length
Length for 1.2dB Cable Loss at 5.8GHz
Cable
(ft) (m)
LMR100 1.9 0.6
LMR200 4.6 1.4
LMR300 7.25 2.2
LMR400 11.1 3.4
LMR600 16.5 5.0
13.6.2 Antenna Choices
In non-FCC regions, antenna choice is not restricted, but any region specific EIRP limit must
be obeyed by reducing the maximum Transmit power, see Section 5.2 “Licenses and Region
Cod
es”.
In FCC regions, antenna choice is restricted as described in Section 13.6.3 “FCC Antenna
Re
strictions on the PTP 58600” and Section 13.6.4 “FCC Antenna Restrictions on the PTP
5460
0”.
The maximum permitted antenna gain depends upon product variant and channel bandwidth
as follows:
PTP 49600: 26 dBi
PTP 58600: 37.7 dBi
PTP 54600 at channel bandwidth 30, 15 or 10 MHz: 34.9 dBi
PTP 54600 at channel bandwidth 5 MHz: 33.4dBi