Aligning Separate Antennas; Completing The Installation; Antenna Cable Fixing - Motorola PTP 300 series User Manual

13.7.9 Aligning Separate Antennas

When using separate antennas to achieve spatial diversity, one should be mounted with Horizontal
polarization and the other with Vertical polarization.
The following steps should be followed:
Step 1: Mount the Antennas
Step 2: Mount the connectorized version of the PTP 300 Series Bridge unit
Step 3: Route and make off the ends of the Antenna cables
Step 4: Connect the antenna cables at the antennas
Step 5: Connect one of the antenna cables at the Connectorized version of the 300 Series bridge
unit.
Step 6: Connect the Connectorized 300 Series Bridge ODU to PIDU Plus cable and configure the
unit as described in
Step 7: Align the connected antenna using the tones as described in
the PTP 300 Series Bridge ODUs".
Step 8: Connect the other antenna to the Connectorized 300 Series bridge.
Step 9: Disconnect the cable to the already aligned antenna.
Step 10: Align the second antenna using the tones as described in
PTP 300 Series Bridge ODUs".
Step 11: Re-connect the second antenna to the Connectorized 300 Series bridge (Note: you will
notice the tone pitch increase as you re-connect the second antenna due to the additional received
signal).
Step 12: Use the relevant status web pages to check that you are getting the results you expect
from your link planning.
Step 13: Complete the installation as detailed below.

13.7.10 Completing the Installation

The installation should be completed by checking all mounting nuts bolts and screws, securing all
cables and weatherproofing the installation. Warning: Finally tightening the antenna mountings
may cause the antenna alignment to be altered, due to distortion in the mounting bracket caused
by action of tightening. It is recommended that the installation tone be left turned on (armed)
during this process so that any movement can be noticed and counteracted by tightening the other
side of the bracket.

13.7.11 Antenna Cable Fixing

Cables should be secured in place using cable ties, cleats or PVC tape. Care should be taken
to ensure that no undue strain is placed on the connectors on both the Connectorized 300 Series
bridge and the Antennas and also to ensure that the cables do not flap in the wind. Flapping
cables are prone to damage and induce unwanted vibrations in the mast to which the units are
attached.
PTP 300 Series Bridge - Connectorized Model
Section 7.7 "Connecting Up".
Section 7.7.11
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Section 7.7.11 "Aligning
"Aligning the