Topcon GR-3 - Page 84

GR-3 Configuration
GR-3 Operator’s Manual
3-16
4. On the Serial Interface tab, select the following baud rate
parameters and click Apply (Figure 3-9).
• Baud Rate – select a baud rate for the modem’s serial port.
The same rate must be used for the receiver and the modem.
Recommended baud rate is 38400.
• RTS/CTS – controls the flow of data between the receiver and
modem. “On” enables handshaking/hardware flow control.
5. When finished, click FileDisconnect.
6. Click FileExit to close Modem-TPS.
7. Launch PC-CDU and set up the receiver to run as an RTK Base
station.
Figure 3-9. Apply Baud Rate Parameters
Table 3-6. Link Rate vs. Modulation Type
For this Link Rate Use this Modulation Type
4800 baud DBPSK
9600 baud (default; recommended) DBPSK (default; recommended) or
DQPSK
19200 baud DQPSK
NOTICE
If the serial baud rate exceeds the link rate, enable
hardware handshaking to prevent the radio link
from overflowing, resulting in data loss.