User Manual

TRACER 2xT1 User’s Manual

61280003L2-1B

Section 2 Installation

Preliminary

SPREADING CODE

The spreading code for each end must be the same. The choice of operating code is selectable by the

operator or the installer. TRACER is shipped in a matched (default) configuration.

WARNING

It is possible for the spreading code to be changed remotely through the VT-100 interface from

the other end of the link. When this is performed, communications will be lost to the far end.

The spreading code will change to code “0” and communications will be lost as soon as this

change is made. If this happens, set the Spreading Code on the local unit to code “0”. The units

should regain communications as soon as the correct code is selected.

This equipment is authorized

equipment shall not be co-located with a similar transmitter that transmits identical information.

under CFR 47 Part 15.247. With this authorization by the FCC, this

ANTENNA ALIGNMENT

After the transmitter power for each end has been adjusted and the BBP and RFC have been installed and

connected, the antenna should be connected to the RFC via the feedline. Verify that both antennas are

arranged on the same polarity: vertical or horizontal. The antennas should be aimed toward one another

as precisely as possible and the received signal strength indicator (RSSI) voltage measured. The RSSI

voltage is a function of the signal strength at the receiver and is used to measure the received signal

strength. RSSI varies approximately from 0 to 4 volts, with 0 volts corresponding to a weaker received

signal and 4 volts corresponding to a stronger received signal.

Co-Location of Transmitters