The Arrow Unit Connections, Indicator Lights, and Battery Pack GPS GNSS GIS

The Arrow Unit Connections, Indicator Lights, and Battery Pack

The Arrow GNSS Receiver comes with a simple interface, and convenient connections for setting it up.

LED Interfaces

  • Main LED Interface
  • Battery LED Interface

Components & Connections

  • Power Button
  • Antenna connector
  • Mini USB (type-B) Connector
  • Mounting Screw Holes
  • Smart Battery Pack & Compartment
    • Battery Charging Jack (DC)
    • Battery Contacts
    • Battery Mounting Screw
    • Bluetooth Radio Switch
    • Gasket
    • Watertight Membrane Vent
Arrow GNSS receiver quick start guide: Arrow GNSS connections Mini USB Port LED interface, antenna connector, battery LED interface
Arrow GNSS receiver quick start guide: GNSS receiver connections, mounting screws, battery pack and contacts Bluetooth radio switch
Arrow GNSS receiver quick start guide: Bluetooth GNSS receiver LED panel Bluetooth power

POWER – This RED LED illuminates to indicate a power-on status of the Arrow. When battery voltage is low, the Power LED will start blinking about 15-20 minutes before auto shut-down.
GPS – The GPS GREEN LED will turn on once the Arrow is computing a valid position/fix. A blinking state would indicate a receiver malfunction.
DGPS – A solid state of this ORANGE LED indicates that the Arrow is in DGNSS (differential correction) mode. The conditions are that it has successfully applied differential correction to its position (see DIFF LED below) and the pseudorange residuals are below the threshold set by the $JLIMIT command (default is 10.0) and the position is in 3D.

A blinking state can be caused by any of the following:

  • Differential correction is no longer being received by the Arrow (DIFF LED will be off). In this case the LED will blink till the value set by the $JAGE command is reached (default is 3600 seconds). If using SBAS, the receiver will stay in DGNSS mode. If using RTK corrections, it will be an indication that the Arrow is not in a fixed ambiguity mode but is in a Float condition.
  • The receiver is in 2D mode
  • The pseudorange residual set by the $JLIMIT command has been exceeded
  • The PDOP threshold value set by the $JALT,SOMETIMES,pdop has been exceeded

An off state means the Arrow’s position is not being differentially corrected.

Note that the Arrow’s data output flow is not altered by these LED states.

DIFF – This YELLOW indicator will illuminate continuously when the Arrow has achieved a solid SBAS or Atlas lock (depending on model) with better than a 150 bit error rate (BER) or when it is successfully receiving RTCM/RTK corrections. For example, if the SBAS signal strength is low (BER higher than 150) but the receiver is still locked, this LED will blink, showing that lock is marginal.
BLUETOOTH – This BLUE LED will illuminate when there is a Bluetooth connection between the Arrow and a Bluetooth compatible device. It will be in a blinking state when there is no Bluetooth connection. It will be off if the Bluetooth miniature DIP switch, between the main battery contacts, is in the OFF position (in this case use the tip of a pen or sharp screwdriver to slide the switch to its ON position).