GR-3 Configuration
GR-3 Operator’s Manual
3-6
– With a 9600 link rate, each data packed will be repeated
three times. Additionally, to decrease the affects of
interference, the data packets are encoded. This link rate
provides maximum data communication reliability
(while reducing data throughput).
– With a 12000 link rate, the data packets will be repeated
five times. No encoding is applied.
– With a 17000 link rate, the data packets will be repeated
three times. No encoding is applied.
– With a 24000 link rate, only encoding is used.
– With a 51000 link rate, no repeating or encoding is used.
This link rate provides maximum data throughput (while
reducing data communication reliability).
For maximum efficiency, the data packet size transferred to
the radio modem in a given time should be equal to or less
than the link rate.
• Channel – assign an operating channel to the radio modem.
Each channel uses a unique communication frequency,
allowing up to five simultaneously transmitting radio
modems, without interference, at the jobsite.
A simple wireless network, or a point-to-point network,
comprises of as few as two devices (transmitter and receiver).
With FH modems, a point-to-multipoint network can be used,
where a single transmitter broadcasts data to multiple remote
radios. When establishing the radio communications, ensure
that:
– the transmitter and remote receiver(s) in the same
network use the same channel number. Otherwise, a radio
connection will not be established.
– networks in the same location are assigned to different
channel numbers; otherwise, networks in close proximity
will interfere with each other, and radio communication
may fail.
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