Topcon GR-3 User Manual

Configuring a Spread Spectrum Radio Modem
P/N 7010-0736
3-5
• Link Rate – select the data transmission rate for the RF link;
either 9600, 12000, 17000, 24000, or 51000 bps.
As opposed to a baud rate (the rate of data transfer through a
serial cable interface), the link rate is the amount of data
(measured in bits) the radio modem can transmit/receive over
the air in a specified time period (measured in seconds).
Table 3-1 on page 3-5 shows the relationship between the
radio interface link rates and the serial interface baud rates
used at the transmitter and receiver(s) ends.
Table 3-1. Link Rate vs. Baud Rate Comparison
If data packet
size (in bits)
is between...
Use the following setting for...
Transmitter serial
baud rate (bps)
Link rate (bps)
Receiver serial
baud rate (bps)
0–9600 9600
19200
9600 (recommended)
12000
9600
19200
38400
57600
9600–12000 19200
38400
12000
(recommended)
24000
19200
38400
57600
12000–17000 19200
38400
17000
(recommended)
24000
19200
38400
57600
17000–24000 38400
57600
24000 38400
57600
24000–51000 57600 51000 57600

Topcon GR-3 Specifications

General

Brand	Topcon
Model	GR-3
Category	Receiver
Language	English