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Surveying RTK

Overview
  • · Applies multi-feed technology to enhance phase accuracy and minimise the impact of antenna-related errors on surveying performance
  • · Supports GPS, GLONASS, Galileo, QZSS, SBAS, IRNSS, and L-band, ensuring compatibility with multiple satellite constellations
  • · Features a robust mechanical design that provides excellent vibration and shock resistance
  • · ncorporates a waterproof and dustproof design, making it suitable for operation in outdoor environments
Description

Survey-grade GNSS antennas are designed for surveying and high-precision positioning (RTK) applications, delivering stable and reliable performance in a wide range of surveying environments where centimetre-level accuracy is required. They are engineered with a strong emphasis on phase centre stability and multipath suppression, ensuring consistent and trustworthy positioning results even in outdoor conditions.

Survey antennas support multiple GNSS constellations, including GPS, GLONASS, Galileo, and BeiDou, as well as multi-frequency bands such as L1, L2, and L5. This multi-constellation and multi-band capability improves RTK convergence time and enhances overall positioning stability. In addition, their rugged mechanical design and waterproof and dustproof construction make them well suited for construction sites, civil engineering surveys, and mobile surveying (rover) applications.

Designed for surveying equipment that requires mobility, survey-grade antennas feature a lightweight construction combined with excellent vibration and shock resistance. They can be deployed in both base station and rover configurations, providing flexibility across a wide range of surveying and positioning scenarios.

FDA6018 FDA6038 FDA6003G FDA6008 FDA6006
Receiving frequency [MHz] 1164~1300MHz, 1525~1610MHz 1164~1300MHz, 1525~1610MHz 1164~1300MHz, 1525~1615MHz 1164~1278MHz, 1557~1612MHz 1197~1278MHz, 1557~1612MHz
Gain [dB] ≥ 4 dBi (Elevation angle 90°) ≥ 5.5 dBi (Elevation angle 90°) ≥ 7.0 dBi (Elevation angle 90°) ≥ 5.5 dBi (Elevation angle 90°) ≥ 5.0 dBi (Elevation angle 90°)
Polarization RHCP RHCP RHCP RHCP RHCP
Axial ratio [dB] [dB] ≤ 3.0 dB (Elevation angle 90°) ≤ 3.0 dB (Elevation angle 90°) ≤ 3.0 dB (Elevation angle 90°) ≤ 3.0 dB (Elevation angle 90°) ≤ 3.0 dB (Elevation angle 90°)
VSWR ≤ 1.5 ≤ 1.5 ≤ 1.5 ≤ 2.0 ≤ 2.0
Impedance [Ω] 50 Ω 50 Ω 50 Ω 50 Ω 50 Ω
Directional pattern shape Horizontal omnidirectional, vertical hemispherical beam Horizontal omnidirectional, vertical hemispherical beam Horizontal omnidirectional, vertical hemispherical beam Horizontal omnidirectional, vertical hemispherical beam Horizontal omnidirectional, vertical hemispherical beam
Phase centre error [mm] < 2mm < 2mm < 2mm
LNA specifications
Frequency range [MHz] 1525 ~ 1610MHz & 1164 ~ 1300MHz 1525 ~ 1610MHz & 1164 ~ 1300MHz 1164~1300MHz,
1525~1615MHz 		1164~1278MHz,
1557~1612MHz		 1197~1278MHz, 1557~1612MHz
Gain [dB] 39±2 dB 40±2 dB 39±2 dB 40±2 dB 40±3 dB
VSWR < 2.0 < 2.0 < 1.8 < 2.0 < 2.0
Noise figure [dB] < 2.0 dB < 2.0 dB < 2.0 dB < 2.0 dB < 2.0 dB
Gain flatness [dB] ±2.0 dB ±2.0 dB ±1.5 dB ±1.5 dB ±1.5 dB
In band group delay fluctuation [ns] ≤ 5.0 ns ≤ 5.0 ns ≤ 5.0 ns ≤ 5.0 ns ≤ 5.0 ns
EMC (RF input static) IEC61000-4-2 (ESD) std. IEC61000-4-2 (ESD) std.
Input voltage [VDC] 3.3 ~ 16 VDC 3.3 ~ 12 VDC 3.3 ~ 15 VDC 3.0 ~ 12 VDC 3.3 ~ 18 VDC
Consumption current [mA] < 50 mA < 45 mA < 50 mA < 45 mA < 45 mA
Size [mm] ɸ95 x 28mm (including connector: 58.7) ɸ147 x 53.5mm ɸ152 x 62mm ɸ156 x 64.3mm ɸ152 x 61mm