Novatel | ANT-A72GLA-TW-N/ANT-A72GLA4-TW-N Antenna | User manual | Novatel ANT-A72GLA-TW-N/ANT-A72GLA4-TW-N Antenna User Manual

Novatel ANT-A72GLA-TW-N/ANT-A72GLA4-TW-N Antenna User Manual
ANT-A72GLA-TW-N and ANT-A72GLA4-TW-N
Antennas
USER GUIDE
The ANT-A72GLA-TW-N and
ANT-A72GLA4-TW-N 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.
2
1
3
Ref. #
1
2
3
Description
4
5
Ref.#
Antenna
Countersink screws
Mounting surface
4
5
Description
O-ring
Pre-drilled mounting holes
Ref.# Description
1
2
3
4
Antenna screwed into
place
Surface
TNC connector (male)
Coaxial cable (female)
2
3
4
The graphic above shows examples of where the ANT-A72GLATW-N or ANT-A72GLA4-TW-N antenna may be located on an
aircraft or vehicle (not to scale).
ANTENNA CARE
Install the antenna as follows:
The ANT-A72GLA-TW-N and ANT-A72GLA4-TW-N 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.
Note: User-supplied o-ring grease can be used to hold the o-ring in the
groove during installation.
1575.42 ±12 MHz
1227.60 ±12 MHz
1542.50 ±17.5 MHz
Out-of-band rejection (typical)
 40 dBc
Gain at zenith (= 90°) (min)
L1: +4.1 dBic, L2:+3.9 dBic,
LB: +5.7 dBic
Gain roll-off (zenith to horizon)
L1/LB: +8 dB, L2:+8 dB
LNA gain
ANT-GLA-TW-N:
ANT-GLA4-TW-N:
Polarization
Right-hand circular
Noise figure (typical)
1.9 dB
Nominal impedance
50 
VSWR
1.5 : 1
33 dB ±3
40 dB ±3
Input voltage
2.5 - 24.0 VDC
Current
35 mA
PHYSICAL
1
Four screws pass through the housing of the antenna.
1. Place the o-ring into the groove on the antenna base (o-ring
supplied).
L1:
L2:
LB:
POWER
5. Attach the male TNC connector of the coaxial cable to the
antenna’s TNC connector.
INSTALLING THE ANTENNA
The antenna is attached to a surface by means of an ARINC-743
Bolt Pattern.
3 dB pass band (typical)
4. Remove the dust cap from the antenna’s TNC connector.
• Coaxial cable with a male TNC connector
Both the input DC power and the output RF signal flow over a
single coaxial cable connected to the unit's TNC female
connector.
RF
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.
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 ANT-A72GLA-TW-N or ANT-A72GLA4-TW-N.
(NovAtel GPS receivers provide the necessary power through
their antenna RF connectors.)
SPECIFICATIONS
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.
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 GPS receivers provide the
necessary power through their antenna RF connectors.
Size
Width 76.20 mm (3.000”)
Length 119.38 mm (4.700”)
Height 20.00 mm (0.788”)
Weight
191 g (6.8 oz.)
ENVIRONMENTAL
Maximum altitude
21,336 m (70,000 ft.)
Operating temperature
-55°C to +85°C (-67°F to +185°F)
Storage temperature
-55°C to +85°C (-67°F to +185°F)
Designed to meet these
standards
RTCA DO-160D, RTCA DO-228,
MIL-C-5541, MIL-E-5400,
MIL-I-45208A, MIL-STD-810
and SAE J1455
ELEVATION GAIN PATTERNS
MECHANICAL DRAWINGS
Dimensions are in inches
followed by [mm]
L-Band Peak Gain: 5.7 dB
L-Band: Max 5.7 dB
L1 Peak
Gain:
L1:
Max 4.1
dB4.1 dB
PHASE CENTRE
WARRANTY POLICY
Please refer to the Mechanical Drawings before reading this
section.
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:
One (1) Year from date of sale
Cables and Accessories:
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.
HEIGHT = Vertical phase centre offset from antenna reference
point or antenna reference plane (ARP), see the
MECHANICAL DRAWINGS section of this guide.
For absolute offset numbers and to download PCV tables,
please visit the GEO++ website at www.geopp.com.
When using either of the websites mentioned above, look for the
NovAtel listing of your antenna model and its hardware revision.
0
L2 Peak Gain: 3.9 dB
L2: Max 3.9 dB
0.788” [20.00]
HEIGHT
ARP
At the time of print, we are unable to provide typical absolute and
relative offset numbers for the current ANT-A72GLA-TW-N or
ANT-A72GLA4-TW-N antenna model. Please check our website
for updates to this manual at http://www.novatel.ca/support/
docupdates.htm 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.
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 maintenance 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) shipping 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, preproduction, 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 merchantability 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 403-295-4900 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.
Note:Before shipping any material to NovAtel or our Dealer, please obtain a Return Material
Authorization (RMA) number from the point of purchase. You may also visit our website
(http://www.novatel.com) and select Support | Repair Request from the side menu.
QUESTIONS OR COMMENTS
If you have any questions or comments regarding your antenna, please contact NovAtel
Customer Service using one of methods provided below.
Email:
support@novatel.com
Web:
www.novatel.com
Phone:
1-800-NOVATEL (U.S. & Canada)
403-295-4900 (International)
Fax:
403-295-4901
© Copyright 2005-2011 NovAtel Inc. All rights reserved.Printed in Canada on recycled paper.
Unpublished rights reserved under international copyright laws. Recyclable.
OM-20000112
Rev 4
December 2011
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