Topcon HiPer Lite - Page 136

Troubleshooting
Topcon HiPer Lite and HiPer Lite+ Operator’s Manual
5-6
Poor satellite geometry
(PDOP/GDOP values
are too high).
Conduct your survey when PDOP values
are low.
The elevation mask is
above 15 degrees.
• Lower the elevation mask.
• See page 2-25 for information on
setting the elevation mask.
The receiver and the
antenna have a poor
connection.
• Ensure the cable is undamaged.
• Check the cable connector attachment
to the receiver. Remove and reattach
the cable connector to ensure a secure
connection.
The Base and Rover
modems are set to
different radio
channels.
• Set the Base and Rover receivers to the
same radio channel.
• See “Radio Configuration” on
page 2-30.
A discrepancy exists
between the
differential standards
used at the Base and
Rover receivers.
Ensure the Base and Rover receivers use
the same corrections input/output format:
1. Connect your receiver and a
computer and start PC-CDU. See
“Connecting the Receiver and a
Computer” on page 2-11.
2. Click ConfigurationReceiver
Ports and set the same input/
output format for both receivers.
The specified link rate
is not compatible with
the link rates the
modem supports.
The link rate is the rate
at which data transmits
over the RF link.
• Change the link rate to that which your
modem supports. See the modem’s
manual for link rate support
information.
• See “Radio Configuration” on
page 2-30for checking the current link
rate and changing the link rate.