VEXXIS
®
Antennas GNSS-804L
CUTTING EDGE ANTENNA
TECHNOLOGY WITH SUPERIOR
TRACKING PERFORMANCE
INNOVATIVE DESIGN WITH MULTIPLE PATENTS
The VEXXIS GNSS-800 series antennas feature a patented multi-point feeding
network and radiation pattern optimization technology. In additional to having
enhanced performance in multipath environments, the GNSS-804L antenna is able
to maintain a low profile while achieving both high peak zenith gain and low gain
roll-o from zenith to horizon, without sacrificing tracking performance. This new
technology significantly enhances the low-elevation angle tracking capabilities,
extending operation to the entire GNSS constellation. Furthermore, the antenna is able
to achieve greater phase center stability through our innovative element design. This
directly translates into improved carrier phase measurement and a better RTK solution.
TRACKING IN CHALLENGING ENVIRONMENTS
The ability to track low elevation satellites while maintaining a high gain for higher
elevation satellites makes the GNSS-804L an excellent choice for any applications
where the sky is partially visible, such as operating close to tree lines, under foliage,
or in urban canyons. The antenna is able to track any visible satellites from horizon to
zenith, providing the maximum number of observations for an enhanced positioning
solution.
NOVATEL’S TOUGHEST PRECISION ANTENNA
GNSS-800 antennas are the toughest high precision antennas NovAtel has designed
to date, ensuring their survivability even in the harshest operating environments. The
antennas feature ultra-durable watertight enclosures, and have been proven to sustain
intense vibration, earning the MIL-STD-810G rating.
+
Supports dual-frequency GPS,
GLONASS, Galileo and BeiDou
signals
+
L-Band signal reception, supporting
correction services such as
TerraStar
+
Multi-point antenna feed provides
stable phase center and enhanced
multipath rejection
+
Radiation pattern optimization
technology yields exceptional low
elevation satellite tracking
+
Provides exceptional tracking
performance previously
unachievable in a small form factor
+
Hermetically sealed enclosure to
endure the toughest environments
If you require more information about our
antennas, visit www.novatel.com/antennas
FEATURES
PERFORMANCE
Signal Received
GPS L1, L2
GLONASS L1, L2
Galileo E1, E5b
BeiDou B1, B2
L-Band
Pass Band (typical)
Upper passband 1569.0 ± 43.0 MHz
Lower passband 1225.5 ± 28.5 MHz
Out-of-Band Rejection
Band edges ± 50 MHz 40 dB minimum
Band edges ± 100 MHz 60 dB minimum
LNA Gain 29 dB (typical)
Gain at Zenith (90
0
)
1
L1/B1/E1/G1 +5.0 dBic minimum
L2/B2/E5b/G2 +5.0 dBic minimum
L-Band +5.0 dBic minimum
Gain Roll-Off (from Zenith to Horizon)
L1/B1/E1/G1 10 dB
L2/B2/E5b/G2 12 dB
L-Band 10 dB
Phase Center Stability <2.0 mm
Noise Figure <2.0 dB (typical)
VSWR ≤2.0 : 1
L1-L2 Differential Propagation Delay
5 ns (maximum)
Group Delay Ripple <15 ns
Nominal Impedance 50 Ω
1 G1 zenith gain is 4 dBic (typical)
PHYSICAL AND ELECTRICAL
Dimensions 176 mm D × 55 mm H
Weight 507 g
Connector TNC female
Mounting 5/8” thread mount
Power
Input voltage +3.8 to +18.0 VDC
Current 60 mA (maximum)
ENVIRONMENTAL
Temperature
Operating -40°C to +85°C
Storage -55°C to +85°C
Humidity 95% non-condensing
Salt Fog MIL-STD-810G (CH1), 509.6
Dust/Water Resistance IP69K
Vibration (operating)
Random MIL-STD-810G (CH1),
514.7 (7.7 g) Annex E
Procedure 1, Category 24
Shock MIL-STD-810G (CH1),
516.7 (40 g), Procedure 1
Bump IEC 60068-2-27 Ea (25 g)
Regulatory Compliance FCC, CE
RoHS EU Directive 2011/65/EU
GNSS-804L
For the most recent details of this product:
www.novatel.com/products/gnss-
antennas/vexxis-series-antennas/gnss-
800-series-antennas/
novatel.com
sales@novatel.com
1-800-NOVATEL (U.S. and Canada)
or 403-295-4900
China 0086-21-68882300
Europe 44-1993-848-736
SE Asia and Australia 61-400-883-601
Version 3 Specifications subject to change without notice.
©2019 NovAtel Inc. All rights reserved.
NovAtel and VEXXIS are registered trademarks of NovAtel Inc.
Printed in Canada.
D21527 March 2019
