User's Manual
Table Of Contents
- NOTICE
- CAUTIONS AND WARNINGS
- INTRODUCTION
- FEATURES AND BENEFITS
- SETTING UP THE PDL HIGH POWER BASE
- SETTING UP THE PDL LOW POWER BASE/REPEATER (PDL
- SETTING UP THE PDL ROVER
- TIPS AND TECHNIQUES FOR BEST PERFORMANCE
- FCC RULES AND REGULATIONS
- SERVICE AND SUPPORT
- WARRANTY
- APPENDIX A - SAFETY INFORMATION
- APPENDIX B - PIN-OUTS AND CONNECTORS
- APPENDIX C - TECHNICAL SPECIFICATIONS
PDL User's Guide 17
Display
The seven-segment, numeric display is used to indicate the
channel or mode selection. To conserve power, the display is
only lit for a short period following the pressing of the CHANNEL
or ON/OFF buttons. Channel selections range from Channel 0
to Channel 15. Two digit channel numbers are displayed by
alternately flashing a "1" followed by the second digit.
Indicator LEDs
The power LED indicates the power status and also provides a
low external voltage supply indicator. When lit, power is turned
on. The power LED will blink to indicate if the external voltage
supply is approaching the minimum value. If the power LED
does not respond to the ON/OFF button, then the level of the
external voltage supply should be inspected.
The RX LED indicates that the PDL LPB is receiving an RF
carrier signal from another PDL Base or from another source of
interference. During normal operation, the RX LED will flash at a
once-per-second rate indicating the transmissions from the PDL
Base. If the RX LED is on continuously, then a source of
interference may be impacting the ability of the PDL LPB to
receive data. Try repositioning the antenna, or you may need to
change to another channel at both the base and rover to reduce
or eliminate the interference.
The TX LED indicates that the PDL LPB is broadcasting. In
most GPS RTK applications, the TX LED will flash approximately
one time per second.