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Features
BT-290 antenna employs quadrifilar helical structure to receive signals of GPS L1/L2,
GLONASS G1/G2 and BDS B1/B2/B3 GALILEO E1/E5b bands ， which features high zenithal gain,
favorable low elevation gain, wide-angle circular polarization and stable phase center.
The antenna is suitable for Three-system high-precision survey and military positioning
and widely used in situations such as unmanned aerial vehicles, geodetic survey, road
construction, marine survey, wharf container operation, maneuvers and frontier guard.
- The antenna part adopts a multi-feed point design scheme to ensure the coincidence
of the phase center and the geometric center, and the influence of the antenna
on the measurement error is reduced.
- Wide beam of radiation pattern can make sure good reception of signals
at low elevation and normal operation in some situations of serious shielding.
- The radome can resist high and low temperature impact, water, and
ultraviolet rays, which can protect the antenna to work outdoors all the year round.
Product Details
Passive Antenna
- Bands: GPS / L1 L2;GLONASS / G1 G2; GALILEO / E1 E5b;BDS / B1 B2 B3
- Gain at Zenith: L1≥5.5dBi / L2≥5.0dBi; G1≥5.0dBi / G2≥5.0dBi; E1≥5.0dBi /
E5b≥4.5dBi; B1≥5.0dBi / B2≥5.0dBi / B3≥4.5dBi
- Polarization: RHCP
- Horizontal Coverage: 360°
- Output Impedance: 50Ω
- Output VSWR: ≤1.5
- Axial Ratio at Zenith: ≤3dB
- Phase Center Accuracy: ≤2mm
Low Noise Amplifier
- Gain: (40±2)dB
- Noise Figure: ≤1.8dB
- Input VSWR: ≤2.0
- Output VSWR: ≤2.0
- Delay of Differential Transmission: ≤5ns
- Supply Voltage: 3.0V - 18.0V
- Supply Current: ≤45mA
Mechanical Characteristics
- Dimensions: Ф150mm*63.7mm
- Connector: TNC-K
- Weight: 400g
- Ingress Protection: IP67
Operating Environment
Operating Temperature: -45-+70
Storage Temperature: -55-+85
Humidity: 95% non-condensing
BT-290
GPS/GLONASS/BDS/GALILEO Mapping Antenna High-Precision Survey Multi-Frequency GNSS Antenna

GPS/GLONASS/BDS/GALILEO Mapping Antenna High-Precision Survey Multi-Frequency GNSS Antenna

100 Units in Stock

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The NEW Small UAS Rule (Part 107), including all pilot and operating rules, will be effective in August 2016. For more detailed information, please see:

Summary of the Small UAS Rule (PDF)
Small UAS Advisory Circular – How to Use the Rule (PDF)
Complete Text of the Small UAS Rule (PDF)
Note: This document, when on public display at the Office of the Federal Register, may contain minor changes based on edits to format for publication.

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This product was added to our catalog on Monday 09 August, 2021.

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GPS/GLONASS/BDS/GALILEO Mapping Antenna High-Precision Survey

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