Novatel GPS-302-A Manuale utente
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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/
AC%2043.13-2B.pdf 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.
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3. Attach the antenna to the surface using the four mounting screws supplied. The o-ring will compress
and create a seal between the surface and the antenna.
Ref. # Description
1 Antenna
2 Countersink screws
3 Mounting surface
4 O-ring
5 Drilled mounting holes
4. Remove the dust cap from the antenna’s TNC connector.
5. Attach the male TNC connector of the coaxial cable to the antenna’s TNC connector.
Ref.# Description
1 Antenna screwed into place
2 Surface
3 TNC connector (male)
4 Coaxial cable (female)
6. Attach the other end of the coaxial cable to the antenna input port of the receiving device. The
receiving device must be able to provide power as detailed in the SPECIFICATIONS section of this
guide. All NovAtel GNSS receivers provide the necessary power through their antenna RF connectors.
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The graphic above shows examples of where the GPS-302-A antenna may be located on an aircraft or
vehicle (not to scale).
ANTENNA CARE
The GPS-302-A is designed to withstand the elements, including rain, snow and dust. However, to ensure
your antenna performs optimally, keep the radome clean and brush off any ice and snow. In addition,
ensure the TNC connector remains clean and dry and replace the dust cap when a cable is not connected.
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SPECIFICATIONS
RF
Operational Band (typical) L1: 1575.42 ±10 MHz
L2: 1227.60 ±10 MHz
LNA gain (typical) L1: 26 dB
L2: 29 dB
Polarization Right-hand circular
Noise figure (typical) 3.5 dB
Nominal impedance 50 Ω
VSWR 2.0 : 1
POWER
Input voltage 3.8 – 6.0 VDC
Current (typical) <60 mA @ 5V
PHYSICAL
Dimensions
W: 76.20 mm / 3.000”
L: 119.38 mm / 4.700”
H: 17.60 mm / 0.693”
Weight 191 g (6.8 oz.)
ENVIRONMENTAL
Maximum altitude 21,336 m (70,000 ft.)
Operating temperature -40°C to +85°C (-40°F to +185°F)
Storage temperature -55°C to +85°C (-67°F to +185°F)
Designed to meet these
standards
DO-160D, MIL-C-5541, MIL-E-5400,
MIL-I-45208A and MIL-STD-810
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MECHANICAL DRAWINGS
Dimensions are in inches
followed by [mm]
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PHASE CENTER
Please refer to the Mechanical Drawings before reading this section.
HEIGHT = Vertical phase center offset from antenna reference point or antenna reference plane (ARP),
see the MECHANICAL DRAWINGS section of this guide.
For relative offset numbers and phase center variation (PCV) tables, please visit the U.S. National
Geodetic Survey (NGS) website at www.ngs.noaa.gov/ANTCAL/. Look for ANTCOM ACC42G1215A_XT1.
Please check our website for updates to this manual at www.novatel.com/Downloads/docupdates.html and
the websites mentioned above.
If you need any further advice on this matter, please visit our website at www.novatel.com. Other methods
of contacting Customer Service can be found on the last panel of this guide.
WEEE
If you purchased a GPS-302-A 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. Sustainable development advocates the reduction of wasteful consumption of natural resources
and the prevention of pollution. Waste electrical and electronic equipment (WEEE) is a regulated area.
Where the generation of waste cannot be avoided, it should be reused or recovered for its material or
energy. WEEE products may be recognized by their wheeled bin label ( ).
See www.novatel.com/products/compliance/environmental-compliance/ for more information.
ROHS
The GPS-302-A is compliant with the European Union (EU) Restriction of Hazardous Substances (RoHS)
Directive 2011/65/EU.
WARRANTY POLICY
NovAtel Inc. warrants that its Global Navigation Satellite System (GNSS) products are free from defects in
materials and workmanship, subject to the conditions set forth on our web site: www.novatel.com/prod-
ucts/warranty.
GNSS Antenna™ Modules: One (1) Year
Cables and Accessories: Ninety (90) Days
RETURN INSTRUCTIONS
To return products, refer to the instructions found under the Return Policy Tab on the warranty page:
www.novatel.com/products/warranty.
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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
E-mail:
Telephone:
U.S. and Canada: 1-800-NOVATEL (1-800-668-2835)
International: +1-403-295-4900
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© Copyright 2019 NovAtel Inc. All rights reserved.
Unpublished rights reserved under international copyright laws.
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