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GPS-302-A
GM-14915160
Rev 3
February 2019
USER GUIDE
The GPS-302-A is an active antenna designed to operate at the GPS L1 and L2 frequencies, 1575.42 and
1227.60 MHz. This guide provides the information needed to install and use the antenna.
ADDITIONAL EQUIPMENT REQUIRED
• A device with an antenna input port that both receives the RF signal and provides 3.8 to 6.0 VDC to
the antenna is required to set up the GPS-302-A. (NovAtel GNSS receivers provide the necessary
power through their antenna RF connectors.)
• Coaxial cable with a male TNC connector
INSTALLING THE ANTENNA
Both the input DC power and the output RF signal flow over a single coaxial cable connected to the
antenna's TNC female connector.
The antenna is attached to a surface by means of an ARINC-743 Bolt Pattern. Four screws pass through
the housing of the antenna.
Install the antenna as follows:
1. Place the o-ring into groove on the GPS-302-A base (o-ring supplied).
2. Drill the mounting holes and the connector hole on the surface. Refer to the
Mechanical Drawings
section of this guide for details on the ARINC-743 mounting pattern.
The integrator of this antenna is responsible for ensuring antenna installation meets all the
overall integrated system requirements.
Refer to Section 307 of
www.faa.gov/documentLibrary/media/Advisory_Circular/
for information about antenna bonding in aircraft applications.
User-supplied o-ring grease can be used to hold the o-ring in the groove during installation.
