Novatel ANT-A72GA-TW-N Leaflet

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 

.

For absolute offset numbers and to download PCV tables, 
please visit the GEO++ website at 

When using either of the websites mentioned above, look for the 
NovAtel listing of your antenna model and its hardware revision.

At the time of print, we are unable to provide typical absolute and 
relative offset numbers for the current ANT-A72GA-TW-N 
antenna model. Please check our website for updates to this 
manual at 

 and 

the websites mentioned above.

If you need any further advice on this matter, please visit our 
website at 

. Other methods of contacting 

Customer Service can be found on the last panel of this guide.

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

Cables and Accessories:

Ninety (90) Days

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 negli-
gent 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 installa-
tion, 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 ship-
ping 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 
(

 

and select Support | Repair Request from the side menu.

If you have any questions or comments regarding your antenna, please contact NovAtel 
Customer Service using one of methods provided below.
Email:

Phone: 

1-800-NOVATEL (U.S. & Canada)
403-295-4900 (International)

Fax: 403-295-4901
© Copyright 2002-2011 NovAtel Inc. All rights reserved. Printed in Canada on recycled 

paper. Unpublished rights reserved under international copyright laws. Recyclable.
OM-20000084 

Rev 3

 December  2011

3 dB pass band (typical)

L1: 1575.42 ±12 MHz
L2: 1227.60 ±12 MHz

Out-of-band rejection (typical)

> 40 dBc

Gain at zenith (





= 90°) (min)

L1: +4.7 dBic L2: +3.3 dBic

Gain roll-off (zenith to horizon)

L1: +6.5 dB

L2: +7.1 dB

LNA gain (typical)

L1: 31dB / L2: 33 dB ±2 dB

Polarization

Right-hand circular

Noise figure (typical)

3.0 dB

Nominal impedance

50 



VSWR

1.5 : 1

Input voltage

2.5 - 24.0 VDC

Current (typical)

35 mA

Dimensions

W: 76.20 mm / 3.000”
L: 119.38 mm / 4.700”
H: 17.60 mm / 0.693”

Weight

198 g (7.0 oz.)

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

DO-160D
DO228
MIL-C-5541
MIL-E-5400
MIL-I-45208A
MIL-STD-810
SAE J1455

ARP

HEIGHT