Owner`s manual

Dual XGPS170 ADS-B Receiver Supplement GRT Avionics
Dual-5 Revision A
1.2 Data Port and Hardware Requirements
USB HUB: The Dual XGPS170 charges its internal battery through the USB connection. The USB
port in the GRT display unit was not designed to handle the power requirements of charging or
running electronic devices. Therefore, GRT strongly recommends use of a powered USB hub instead
of connecting the ADS-B receiver directly to the display unit. The hub will add functional USB ports
to the display unit and will avoid overload of its internal power supply circuitry.
These USB hubs have been tested by GRT beta testers and customers:
Ÿ StarTech 4-port USB Hub, p/n ST4200USBM, available from Amazon.com. 7-24V DC
Ÿ Netix P5USB, p/n CNX-P5USB, 7-32V DC
Both of the recommended hubs have connections for external power. They should be wired to the
avionics bus, as the power coming out of the USB hub in the display unit is not adequate for
powering the hub.
CAUTION: Charging or powering any USB electronic devices other than USB thumb drives or
Bluetooth adapters using the EFIS USB port may overload the internal electrical components of
the display unit, causing premature failure. This type of failure is not covered under warranty.
Antennas: The use of an externally-mounted antenna is optional. GRT beta testers in Van’s RV
aircraft have reported good signal with the included antenna when the unit is within view of the
sky (typically on the instrument panel glare shield). Signal reception may be improved by mounting
an antenna on the belly of the aircraft. The included antenna may be removed and a dedicated
passive transponder or DME antenna may be connected in its place.
Display Unit Data Port USB port
Power Connections
Internal rechargeable battery lasts up to 5 hours. Charges through
USB port. See USB Hub section below for wiring guidelines.
Antennas Short antenna included. Extensions or external antennas optional.