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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

The integrator of this antenna is responsible for ensuring antenna installation meets all the
overall integrated system requirements.
Refer to Section 307 of
AC%2043.13-2B.pdf
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.
www.faa.gov/documentLibrary/media/Advisory_Circular/
for information about antenna bonding in aircraft applications.
GPS-302-40
USER GUIDE
GM-14915159
Rev 1
April 2018
1

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Summary of Contents for Novatel GPS-302-40

  • Page 1: Installing The Antenna

    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.
  • Page 2 3. Use the four supplied mounting screws to attach the antenna to the mounting surface. The o-ring com- presses and creates a seal between the surface and the antenna.  NovAtel recommends thread-locker (not included) on the mounting screws. Ref. # Description...
  • Page 3 6. Attach the other end of the coaxial cable to the antenna input port on the receiving device. The receiving device must be equipped to provide power as detailed in the SPECIFICATIONS section of this guide. All NovAtel GPS receivers provide the necessary power through the antenna RF connectors.
  • Page 4: Antenna Care

    ANTENNA CARE The GPS-302-40 is designed to withstand the elements, including rain, snow and dust. However, to ensure that the antenna performs optimally, keep the radome clean and brush off any ice or snow. In addition, ensure the TNC connector remains clean and dry and replace the dust cap when a cable is not connected.
  • Page 5: Specifications

    SPECIFICATIONS Band Operational Band (typical) 1575.42 ±10 MHz 1227.60 ±10 MHz 16-inch 4-foot 16-inch 4-foot Free Free Antenna gain (dBic) ground ground ground ground Space Space plane plane plane plane 90° zenith +4.7 +0.4 +3.5 +3.3 +1.5 +4.9 10° elevation -1.8 -3.2 -2.0...
  • Page 6: Mechanical Drawings

    MECHANICAL DRAWINGS Dimensions are in inches, followed by [mm]...
  • Page 7: Phase Center

    Customer Service can be found on the last panel of this guide. WEEE If you purchased a GPS-302-40 antenna in Europe, return it to your dealer or supplier at the end of its life. The objectives of the European Community's environment policy are, in particular, to preserve, protect and improve the quality of the environment, protect human health and utilise natural resources prudently and rationally.
  • Page 8: Questions Or Comments

    QUESTIONS OR COMMENTS If you have any questions or comments, please log a support request with NovAtel Customer Support using one of the following methods: Log a Case and Search Knowledge: Website: www.novatel.com/support Log a Case, Search Knowledge and View Your Case History: (login access required) Web Portal: https://novatelsupport.force.com/community/login...

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