Novatel TV Antenna 42G1215A XT 1 2 User Manual

42G1215A-XT-1-2 and  
42G1215A-XT-1-3  
ANTENNA GUIDE  
OM-20000154  
Rev 1  
December 2013  
The 42G1215A-XT-1-3 and 42G1215A-XT-1-2 are active antennas designed to operate at the GPS L1 and  
L2 frequencies, 1575.42 and 1227.60 MHz and across the L-Band from 1525 to 1560 MHz. The antennas  
are aircraft certified for navigation. 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 2.5 to 24.0 VDC to the  
antenna is required to set up the 42G1215A-XT-1-3 and 42G1215A-XT-1-2. (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 flow over a single coaxial cable connected to the unit'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 the groove on the antenna base (o-ring supplied).  
User-supplied o-ring grease can be used to hold the o-ring in the groove  
during installation.  
2. Pre-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.  
 
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The graphic above shows examples of where the 42G1215A-XT-1-3 and 42G1215A-XT-1-2 antenna may  
be located on an aircraft or vehicle (not to scale).  
ANTENNA CARE  
The 42G1215A-XT-1-3 and 42G1215A-XT-1-2 are 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  
L1:1575.42 ±12 MHz  
L2:1227.60 ±12 MHz  
LB:1542.50 ±17.5 MHz  
3 dB pass band (typical)  
Out-of-band rejection  
40 dBc  
L1:+4.1 dBic, L2:+3.9 dBic,  
LB: +5.7 dBic  
Gain at zenith (= 90°)  
(min)  
Gain roll-off (zenith to  
horizon)  
L1/LB: +8 dB, L2:+8 dB  
42G1215A-XT-1-2: 33 dB ±3  
42G1215A-XT-1-3: 40 dB ±3  
LNA gain  
Polarization  
Right-hand circular  
1.9 dB  
Noise figure (typical)  
Nominal impedance  
VSWR  
50   
1.5 : 1  
POWER  
Input voltage  
Current  
2.5 - 24.0 VDC  
35 mA  
PHYSICAL  
Width 76.20 mm (3.000”)  
Length 119.38 mm (4.700”)  
Height 20.00 mm (0.788”)  
Size  
Weight  
191 g (6.8 oz.)  
ENVIRONMENTAL  
Maximum altitude  
21,336 m (70,000 ft.)  
Operating temperature  
Storage temperature  
-55°C to +85°C (-67°F to  
-55°C to +85°C (-67°F to  
RTCA DO-160D, RTCA DO-  
228, MIL-C-5541, MIL-E-5400,  
MIL-I-45208A, MIL-STD-810  
and SAE J1455  
Designed to meet these  
standards  
 
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ELEVATION GAIN PATTERNS  
L1 Peak Gain: 4.1 dB  
L1: Max 4.1 dB  
L-Band Peak Gain: 5.7 dB  
L-Band: Max 5.7 dB  
L2 Peak Gain: 3.9 dB  
L2: Max 3.9 dB  
 
5
MECHANICAL DRAWINGS  
Dimensions are in inches  
followed by [mm]  
HEIGHT  
ARP  
0.788” [20.00]  
 
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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 ACC42G1215A_XT1.  
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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