• Qtalis AT340 Geodetic Antenna Front View
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Qtalis

AT340 Geodetic Antenna

AT340 Geodetic Antenna

$130.00 USD
$130.00 USD
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AT340 GNSS Antenna is a high-performance, multi-frequency antenna supporting GPS, GLONASS, BeiDou, Galileo, L-Band, and SBAS. With high gain and a wide beam width, it ensures reliable signal tracking at low elevation angles. Its multi-feed design delivers stable phase center performance and effective multipath rejection, while the rugged waterproof, dustproof, and lightning-protected structure makes AT340 ideal for land surveying, precision agriculture, construction, and deformation monitoring in harsh environments.

Key Features

  • Support GPS L1/L2/L5, GLONASS G1/G2 and BeiDou B1/B2/B3 Galileo E1/E5a/E5b/AltBoc, L-Band and SBAS
  • Multi-feed design provides stable phase center and multipath rejection capability
  • Its high gain and wide beam width provide good signal tracking performance when satellites are at low elevation angles
  • Water-proof and dust-proof design ensures absolute seal of kernel parts, capable for work in harsh environment
  • Lightning proof circuit inside protects the LNA from surge immunity


Helpful Documentation

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Datasheet
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GPSL1, L2, L5
GLONASSG1, G2
BeidouB1, B2, B3
Galileo E1, E5a, E5b, AltBoc
L-Band, SBAS
Nominal Impedance50Ω
PolarizationRHCP
Axial Ratio (90°)≤ 3dB
LNA Gain40dB
Noise Figure≤ 2dB
VSWR Output≤ 2.0
Operation Voltage3 - 18VDC
Operation Current≤ 45mA
Group Delay< 5ns
Passband Ripple± 1dB
Gain at Zenith+ 5.5dBi
Phase Center Offset± 2mm
DimensionΦ152×62.2mm
ConnectorTNC Female connector
Weight374g
Operating Temperature-40°C to +85°C
Storage Temperature-55°C to +85°C
Humidity95% No-condensing
Waterproof and DustproofIP67
DropSurvive from a 1.5m drop
CalibrationIGS, NGS