1
GPS-302-40
GM-14915159
Rev 1
April 2018
USER GUIDE
The GPS-302-40 antenna is designed for airborne use, but works in any mobile application.
The GPS-302-40 is an active GPS antenna, 89.6 mm (3.53 inches) in diameter and operates at the GPS
L1 frequency of 1575.42 MHz and GPS L2 frequency of 1227.60 MHz. The antenna is a spherical radius
molded radome that provides enhanced protection against rain and ice.
The antenna includes the following:
• internal 40 dB low noise amplifier
• bias voltage from 3.8 – 6.0 VDC for operation
• band pass filtering
• DC bias provided through the coaxial connector
NovAtel offers optional coaxial cables of various lengths to connect the antenna and NovAtel GNSS
receivers.
This guide provides the basic information you need to install and begin using your new antenna.
ADDITIONAL EQUIPMENT REQUIRED
• A device with an antenna input port that both receives the RF signal and provides 3.8 – 6.0 VDC to
the antenna is required for the GPS-302-40. 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 use a single coaxial cable connected to the unit's TNC
female connector.
The antenna can be attached to a surface with a square, four bolt, 1.9-inch space mounting pattern as
shown in the
Mechanical Drawings
section of this guide. Four screws pass through the antenna housing.
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/
AC%2043.13-2B.pdf
for information about antenna bonding in aircraft applications.
