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.

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.

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.

SPECIFICATIONS

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

MECHANICAL DRAWINGS

Dimensions are in inches

followed by [mm]

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.

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:

support@novatel.com

Telephone:

U.S. and Canada: 1-800-NOVATEL (1-800-668-2835)

International: +1-403-295-4900

Unpublished rights reserved under international copyright laws.