Advanced->Multipath - Javad Prego Operator's Manual

The cable is damaged
The receiver port used
for connection is not in
Command mode.
Problem
The receiver does not lock on to satellites for a long period of time.
Causes
The receiver stores an
old almanac.
Problem
The receiver tracks too few satellites.
Causes
The elevation mask
value is too high (e.g.,
above 15 degrees).
The measuring is
conducted near
obstructions (tree
canopy, tall buildings,
etc.).
Problem
www.javad.com
Use an undamaged cable. Contact your
Dealer to replace the cable.
1. Connect your receiver and a computer
using a free port (see "Connecting the
Prego and a Computer" on page 2-4)
and start PCView.
Click Configuration Receiver
1.
Ports.
Change the Input for the serial port
2.
used for connection to Command.
Solutions
• Update the almanac.
• See "Collecting Almanacs" on page 2-33
Solutions
• Lower the elevation mask.
• See page 2-9 for information on setting
the elevation mask.
• Check that the Multipath Reduction
boxes have been enabled.
1. Connect your receiver and a
computer and start PCView. See
"Connecting the Prego and a
Computer" on page 2-4.
2. Click Configuration
Advanced Multipath
Reduction and enable the two
boxes.
• Move to an area free of obstructions, if
applicable.
TR O U B L E S H O O T I N G
Receiver Problems
Prego Operator's Manual 5-3