Novatel Satellite Radio 3GOXX16A4 XTR 1 1 User Manual

3GOXX16A4-XTR-1-1  
ANTENNA GUIDE  
OM-20000156  
Rev 1  
December 2013  
The 3GOXX16A4-XTR-1-1 antenna is designed for airborne use, but works in any mobile application.  
The 3GOXX16A4-XTR-1-1 is an active GPS antenna, 88.9 mm (3.5-inches) in diameter and operates at  
the GPS L1 frequency of 1575.42 MHz and the 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 33 dB low noise amplifier  
bias voltage from 2.5-24 V DC 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.  
The 3GOXX16A4-XTR-1-1 is aircraft certified for navigation. 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 2.5 - 24.0 VDC  
to the antenna is required for the 3GOXX16A4-XTR-1-1. NovAtel GPS 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.  
To install the antenna:  
1. Install the supplied o-ring into the groove on the antenna base.  
User-supplied o-ring grease can hold the o-ring in the groove during installation.  
2. Pre-drill and tap the mounting holes and drill the connector clearance hole on the mounting surface.  
See the Mechanical Drawings section for mounting pattern details.  
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This graphic provides examples of where the antenna may be located on an aircraft or vehicle (not to  
scale).  
ANTENNA CARE  
The 3GOXX16A4-XTR-1-1 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.  
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SPECIFICATIONS  
RF  
Band  
L1  
L2  
3 dB pass band (typical)  
Out-of-band rejection (dB)  
Antenna gain (dBic)  
1575.42 ±15 MHz  
1227.60 ±15 MHz  
-40 dB (±50 MHz)  
-41 dB (±50 MHz)  
Free  
16-inch 4-foot  
Free  
16-inch 4-foot  
Space ground  
plane  
ground  
plane  
Space ground  
plane  
ground  
plane  
+4.7  
-1.8  
-0.3  
+1.4  
+0.4  
-3.2  
-1.0  
+0.9  
+3.5  
-2.0  
+3.3  
-3.8  
-2.0  
-0.5  
+1.5  
-4.0  
-2.0  
0.0  
+4.9  
-3.6  
-0.1  
-1.8  
90° zenith  
10° elevation  
20° elevation  
30° elevation  
60° – 90° elevation  
Beamwidth (dB)  
LNA gain  
+0.8  
+1.8  
>3.9 +3.4/+0.4 >2.8  
>2.7 +2.4/+1.5 >3.0  
114°  
118°  
139°  
106°  
111°  
75°  
33 dB  
35 dB  
Polarization  
Right-hand circular  
3.0 dB  
Noise figure (typical)  
Nominal impedance  
VSWR  
50   
1.5 : 1  
POWER  
2.5 - 24.0 VDC  
Input voltage  
Current  
50 mA  
PHYSICAL  
Radome  
diameter x height  
8.89 cm (3.5 inches) x 1.847 cm (0.727 inches)  
Weight  
191 g (6.802 ounces)  
ENVIRONMENTAL  
21,336 m (70,000 ft.)  
Maximum altitude  
Operating / storage temper-  
ature  
-55° C to +85° C (-67° F to +185° F)  
Vibration  
>30 G  
Designed to meet these  
standards  
FAA TSO-C144, DO-160D, DO-228, MIL-C-5541,  
MIL-E-5400, MIL-I-45208A, MIL-STD-810 and SAE J1455  
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ELEVATION GAIN PATTERNS  
L1 GPS  
Max= 4.7  
0
L2 GPS  
Max= 3.3  
0
0
0
-10  
-20  
-30  
-40  
-10  
-20  
-30  
-40  
-90  
90  
-90  
90  
180  
180  
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MECHANICAL DRAWINGS  
Dimensions are in inches, followed by [mm]  
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PHASE CENTRE  
Please refer to the Mechanical Drawings before reading this section.  
HEIGHT = Vertical phase centre offset from antenna reference point or antenna reference plane (ARP),  
see the MECHANICAL DRAWINGS section of this guide.  
For relative offset numbers and phase centre variation (PCV) tables, please visit the U.S. National  
Geodetic Survey (NGS) website at www.ngs.noaa.gov/ANTCAL/. Look for ANTCOM ACC3G1215A_XT_1.  
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.  
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WARRANTY POLICY  
NovAtel Inc. warrants that its Global Positioning System (GPS) products are free from defects in materials and workmanship, subject to the conditions  
set forth below, for the following periods of time:  
GPSAntenna™ Modules:  
Cables and Accessories:  
One (1) Year from date of sale  
Ninety (90) Days from date of sale  
Date of sale shall mean the date of the invoice to the original customer for the product. NovAtel's responsibility respecting this warranty is limited solely  
to product repair at an authorized NovAtel location only. Determination of repair will be made by NovAtel personnel or by technical personnel expressly  
authorized by NovAtel for this purpose.  
The foregoing warranties do not extend to  
(i) nonconformities, defects or errors in the products due to accident, abuse, misuse or negligent use of the products or use in other than a normal and  
customary manner, environmental conditions not conforming to NovAtel’s specifications, or failure to follow prescribed installation, operating and mainte-  
nance procedures, (ii) defects, errors or nonconformities in the products due to modifications, alterations, additions or changes not made in accordance  
with NovAtel’s specifications or authorized by NovAtel, (iii) normal wear and tear, (iv) damage cause by force of nature or act of any third person, (v) ship-  
ping damage; or (vi)service or repair of product by the dealer without prior written consent from NovAtel.  
In addition, the foregoing warranties shall not apply to products designated by NovAtel as beta site test samples, experimental, developmental, prepro-  
duction, sample, incomplete or out of specification products or to returned products if the original identification marks have been removed or altered.  
The warranties and remedies are exclusive and all other warranties, express or implied, written or oral, including the implied warranties of merchant-  
ability or fitness for any particular purpose are excluded.  
NovAtel shall not be liable for any loss, damage or expense arising directly or indirectly out of the purchase, installation, operation, use or licensing or  
products or services. In no event shall NovAtel be liable for special, indirect, incidental or consequential damages of any kind or nature due to any cause.  
There are no user-serviceable parts in the GPSAntenna and no maintenance is required. If the unit is faulty, replace with another unit and return the  
faulty unit to NovAtel Inc. You must obtain a RETURN MATERIAL AUTHORIZATION (RMA) number by calling NovAtel Customer Service at 1-800-  
NOVATEL (U.S. and Canada only) or 403-295-4500 before shipping any product to NovAtel or a dealer. Once you have obtained an RMA number, you  
will be advised of proper shipping procedures to return any defective product. When returning any product to NovAtel, please return the defective  
product in the original packaging to avoid damage.  
**  
Before shipping any material to NovAtel or our Dealer, obtain a Return Material Authorization (RMA) number from the point of purchase. You  
may also visit our web site (http://www.novatel.com) and select Support | Repair Request from the side menu.  
Questions or Comments  
If you have any questions or comments, please contact NovAtel Customer Support using one of methods  
provided below.  
Phone: 1-800-NOVATEL (International) or 403-295-4500 (U.S. & Canada)  
Fax: 403-295-4501  
© Copyright 2013 NovAtel Inc. All rights reserved.  
Unpublished rights reserved under international copyright laws.  
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