Novatel GNSS-303L Bedienungsanleitung

GNSS-303L

GM-14915164 Rev 2 March 2018

USER GUIDE

The GNSS-303L antenna is designed for airborne use, but it will operate in any mobile application.

The GNSS-303L is an active GNSS antenna, 89.6 mm (3.53”) in diameter, and designed to receive GPS,

GLONASS, Galileo, BeiDou, NavIC and L-Band signals. Its mechanical configuration is a spherical radius

molded radome which provides enhanced protection against rain and ice. Its connector offset is based on

NovAtel’s GPS-511 antenna. The GNSS-303L antenna includes the following:

• internal 26 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 and models for interconnecting between 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 to 6.0 VDC to

the antenna is required to set up the GNSS-303L. (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 that is connected to the

antenna's TNC female connector.

The antenna can be attached to a surface by means of a square, 4 bolt, 1.9 inch space mounting pattern

as shown in the Mechanical Drawings section of this guide.

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.

Four screws pass through the housing of the antenna.

Install the antenna as follows:

1. The antenna is supplied with an o-ring. Place it in the o-ring groove of the antenna base.

2. Drill and tap the mounting holes and drill the connector clearance hole on the surface, see the

Mechanical Drawings section of this guide for details on the mounting pattern.

3. Attach the antenna to the surface using the four mounting screws supplied (use of user-supplied

thread-locking material is recommended). The o-ring compresses and creates 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 Antennas screwed into place

2 Surface

3 TNC connector

4 Coaxial cable

User-supplied o-ring grease can be used to hold the o-ring in the groove during installation.

6. Attach the other end of the coaxial cable to the antenna input port of the receiving device, which must

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 graphics above show examples of where the antenna may be placed on an aircraft or vehicle (not to

scale).

ANTENNA CARE

The GNSS-303L 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)

GPS L5

1176.45 ±12 MHz

Galileo E5, E5a

E5b 1164.45 -

1219.14 MHz

NavIC L5

1176.45 ±15 MHz

GPS L2

1227.60 ±10 MHz

BeiDou B2

1207.14 ±12 MHz

GLONASS L2

1237.83 –

1253.63 MHz

Galileo E6 1266.75

- 1290.75 MHz

BeiDou B3

1268.52 ±10 MHz

L-Band

1525 – 1560 MHz

Galileo L6

1542.50 ± 5.0 MHz

BeiDou B1

1561.098 ±8 MHz

GPS L1

1575.42 ±10.0 MHz

Galileo E1, E2

1575.42 ±12.0 MHz

NavIC L1

1575.42 ±12 MHz

GLONASS L1

1592.95 –

1610.38 MHz

Antenna Gain (dBic)

G.P. = Ground Plane

Free

Space

4 foot

G.P.

Free

Space

4 foot

G.P.

Free

Space

4 foot

G.P.

Free

Space

4 foot

G.P.

Free

Space

4 foot

G.P.

Free

Space

4 foot

G.P.

90° zenith +1.6 +2.4 +2.6 +3.6 +1.4 +2.3 -1.0 -2.5 +4.3 +3.5 -1.5 -2.1

10° elevation -4.5 -4.5 -3.7 -3.6 -5.1 -5.4 -8.1 -7.1 -2.5 -1.2 -8.5 -7.7

20° elevation -3.5 -1.6 -2.3 -0.4 -3.6 -1.9 -6.6 -4.0 -1.3 +1.6 -7.2 -4.9

30° elevation -2.0 +0.1 -0.7 +1.5 -2.1 -0.1 -5.6 -2.8 +0.1 +2.1 -6.0 -4.5

60°-90° elevation >0.5 >-0.7 >1.5 >0.6 >0.1 >0.1 >-2.0 >-5.0 >3.2 >-1.5 >-2.6 >-8.6

Beamwidth (3dB) 112° 128° 115° 130° 105° 120° 105° 125° 104° 135° 102° 130°

LNA gain (typical) 30 dB 30 dB 30 dB 26 dB 26 dB 26 dB

Polarization Right-hand circular

Noise figure (typical) 3 dB

Nominal impedance 50 Ω

VSWR 2.0 : 1

POWER

Input voltage 3.8 – 6.0 VDC

Current (typical) 60 mA

PHYSICAL

Radome Diameter x

Height 89.6 mm (3.53”) x 26.85 mm (1.06”)

Weight 340 g (12 oz.)

ENVIRONMENTAL

Maximum altitude 21336 m (70000 ft.)

Operating

temperature -40°C to +85°C (-40°F to +185°F)

Storage temperature -65°C to +150°C (-85°F to +302°F)

Vibration >30 G

Designed to meet

these standards DO-160D, MIL-C-5541, MIL-E-5400, MIL-I-45208A and MIL-STD-810

MECHANICAL DRAWINGS

Square Bolt Pattern

followed by [mm] and

denotes diameter

Dimensions are in inches

WEEE

If you purchased a GNSS-303L 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 GNSS-303L 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/

products/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:

[email protected]

Telephone:

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

International: +1-403-295-4900

Unpublished rights reserved under international copyright laws.

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