Installation And Commissioning - Motorola PTP 600 Series Deployment Manual

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Aligning the PTP 600 Series Bridge ODUs

The PTP 600 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

Scanning

Synchronized

Registered

The term 'wanted signal' refers to that of the peer unit being installed.

In each of the states detailed above, the unit should be aligned to give the highest pitch tone. It

should be noted that if, when in the Synchronized or Registered state, the tone varies wildly, you

may be suffering from interference or a fast fading link. Installing in this situation may not give a

reliable link. The cause of the problem should be investigated.

For the ease of alignment, both Master and Slave units use the install tones in the same way but

with some small behavioral differences. This allows the installer to install the Slave unit first and

carry out the initial alignment with the Master unit if desired. However, due to the behavioral

differences of Master and Slave units, it is recommended that the Master unit is installed first and

the initial alignment carried out at the Slave unit.

Once the optimum performance has been achieved by directing the Slave unit (indicated by

highest frequency of tone) then adjustment of the direction of the Master unit should be done

without moving the Slave. Repeat if necessary at the Slave and then the Master until optimum

alignment has been obtained.

More information:

4Gon www.4Gon.co.uk info@4gon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299