User Manual

SRU Installation

SRU Installation Manual

17286-1000 Rev. B 03/14/01

1-4

Figure 1-3 Incorrect Antenna Alignment on a Sidelobe

Typically, if your final receive signal level (RSL) is approximately 30 dB below the

calculated value, the link is either aligned on a side lobe or the antenna polarizations are

mismatched.

1.2.2

1.2.21.2.2

1.2.2

Alignment of SRU

Alignment of SRUAlignment of SRU

Alignment of SRU

Before proceeding, verify that the antenna and mount have been properly assembled.

Verify that both ends of the link are powered-up.

1.2.2.1

1.2.2.11.2.2.1

1.2.2.1

Azimuth Procedure

Azimuth ProcedureAzimuth Procedure

Azimuth Procedure

To perform the rough azimuth alignment, complete the following steps:

Set the azimuth adjusting plate at roughly the middle of its range (centered) and

lock it down. Have the person at the far end use a mirror or strobe light to make

the opposite site more visible. If necessary, loosen (slightly) the pole mount

brackets and rotate the antenna assembly on the mounting pole. If needed, the

Voltmeter can be used now.

With the antenna pointed toward the BRU, slowly tighten the azimuth

adjustment lock nut/washers. While tightening them, check to see that the

antenna remains pointing directly at the other site.