User's Manual

Draft

20 RT System 2 v2.0.0 Deployment Guide R00.e

2. Layout

Laying Out the Equipment

2.4.3 Placing the WRU in the Field

This section describes the process to ready the ground equipment for interaction

with the central recording system (deployment).

To deploy the WRU:

1 Prerequisites:

● The WRU is assembled with battery, geophone, and antenna

2 Pick up the WRU and point the geophone connector end towards the ground as

shown in the following figure. After a few seconds, all of the LEDs illuminate:

TIP

When determining which antenna to use (5 dBi, 7 dBi, 9dBi), consider

the distance between WRUs, and how much vegetation is in the area.

For distances of 10 m to 30 m, use a 5 dBi antenna.

Distances of 30 m or greater, use a 7 dBi antenna.

For sudden elevation changes, such as cliffs, use a 2 dBi or 5 dBi

antenna.

In special situations such as tall grass and dense vegetation, or

distances of 55 m or greater, use a 9 dBi antenna.

NOTE

If you are using a WRU as a Repeater, the deployment instructions are

the same, except a geophone is not required. Repeaters are added to

the line segment in the Spread Manager. See the RT System 2 Operator

Guide for more information.

If a geophone is not connected, you can skip the geophone test. See

“D. LED Indicators” on page 91 for more information on skipping the

test and the relevant LED status indicators.