Ssradio Antenna Connection (Optional); Radio Interference - ashtech Z-sensor Operation Manual

SSRadio Antenna Connection (Optional)

The factory can install a spread spectrum radio connector within the Z-Sensor. This
radio can also be mounted on the Z-Eurocard. The internal SSR is only a receiver and
can only be used in a "remote setup." An external transceiver is available for base
application.
The connector uses reverse polarity to comply with FCC spread spectrum standards.
Table 2.6 summarizes the spread spectrum parameters.

Radio Interference

Some radio transmitters and receivers, such as FM radios, can interfere with the
operation of GPS receivers. We recommend you verify nearby handheld or mobile
communications devices do not interfere with the Z-receivers before setting up your
project.
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Table 2.5: Spread Spectrum Parameters
Parameter
Input impedance
Output Power
Frequency Range
Port Rate
Radio Communication Rate
Data Rate
Frequency steps
Hopping Cycle
Specifications
50 ohms
900 mW
902 to 928 MHz
9600 Baud
4800, 9600, 19200 bits per second
>1/2 of radio communication rate
50, 100, 150 KHz
50, 75, 150
Z-Sensor and Z-Eurocard Operation Manual