Establishing A Radio Link; Aligning The Ptp 500 Series Bridge Odus; Table 7 - Audio Indications From The Odu - Motorola PTP 500 Series User Manual

6.6

Establishing a Radio Link

The following is a description of the steps taken to establish a radio link between the two
units forming the bridge and align the units for the best signal strength.

6.6.1 Aligning the PTP 500 Series Bridge ODUs

The PTP 500 Series Bridge uses audible tones during installation to assist the installer with
alignment. The installer should adjust the alignment of the ODU in both azimuth and elevation
until highest pitch tone is achieved
The pitch of the alignment tone is proportional to the received power of the wireless signals.
The best results are usually achieved by making small incremental movement in angular
alignment.
The tones and their meanings are as follows:
State Name
Free Channel
Search
Scanning
Synchronized
Registered
Alarm
The term 'wanted signal' refers to that of the peer unit being installed.
.

Table 7 - Audio indications from the ODU

Tone State Description
Description
Regular beep Executing band scan
Slow broken Not demodulating the wanted
tone signal
Fast broken Demodulating the wanted
tone signal
Solid tone Both Master and Slave units
exchanging Radio layer MAC
management messages
Fast broken A fatal error has occurred.
dual tone
66
6 Installation
Pitch Indication (Higher
pitch = higher power)
N/A
Rx Power
Rx Power
Rx Power