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L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna

L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna

5(4 ratings)

Best price now

$80.06at GNSS StoreChecked Nov 10

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Price facts

  • Last seen at $80.06 at GNSS Store on Nov 10.

Our take on the L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna

This is an active multiband GNSS antenna built on quad helix technology, covering GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1I/B2I/B1C/B2a/B2b, Galileo E1/E5a/E5b, SBAS L1/L5, QZSS L1/L2/L5 and IRNSS I5. The helical structure gives tight pattern control, polarization purity and high efficiency in a compact body, which is what separates it from cheap L1-only patch antennas that lose lock and accuracy in multipath. It has an integrated SMA connector, IP67 automotive-grade construction and an O-ring for sealing. It suits RTK and high-precision positioning work where L1-only accuracy is not enough, and it is easy to retrofit into existing receivers and enclosures.

Best forRTK and centimeter-level positioning setupsSurvey, mapping and machine-control receiversRetrofitting existing GNSS products with multiband receptionOutdoor and vehicle installs that need IP67 sealing
Pros
  • Covers L1, L2 and L5 plus GLONASS, BeiDou, Galileo, SBAS, QZSS and IRNSS
  • Quad helix design gives strong pattern control and polarization purity
  • Active element with integrated SMA connector for minimal integration effort
  • IP67 automotive-grade housing with O-ring seal
  • Compact form factor for its band coverage
Cons
  • Peak efficiency is modest at 46% in the lower band
  • Active antenna needs a receiver that supplies bias power
  • SMA connector fixes the mounting and cabling options
  • No mounting bracket or cable included in the description

L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna prices at every store

  • GNSS StoreNew

    In stockShips from Latvia · duties may applyReturn policy

    $80.06Checked Nov 10
    Visit GNSS Store

About the L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna

This is an active, multi-band GNSS antenna for high-accuracy positioning. It receives GPS L1/L2/L5, GLONASS G1/G2/G3, Beidou B1I/B2I/B1C/B2a/B2b, Galileo E1/E5a/E5b, SBAS L1/L5, QZSS L1/L2/L5 and IRNSS I5. It is designed for applications that need more accuracy than an L1-only antenna can give.

The antenna uses a quadrifilar helix structure. This gives it pattern control, polarization purity and high efficiency in a compact body. It does not depend on a ground plane. It has an integrated SMA connector, IP67-rated automotive grade components and an O-ring.

It is made for GIS, RTK and other high-accuracy GNSS uses, and for retrofitting existing products with minimal integration effort. Power consumption is low, and phase center variation is low across azimuth, elevation and different samples.

Type
Active quadrifilar helix GNSS antenna
Bands
GPS L1/L2/L5, GLONASS G1/G2/G3, Galileo E1/E5a/E5b, Beidou B1I/B2I/B1C/B2a/B2b/B3, SBAS L1/L5, QZSS L1/L2/L5, IRNSS I5
Frequency
1166-1280 MHz (L2, L5, B2a, B2b, B3, G2, G3, E5a, E5b); 1550-1610 MHz (L1, E1, B1I, B1C, G1)
Peak efficiency
46% (1166-1280 MHz); 49% (1550-1610 MHz)
Realized gain
1.1 dB (1166-1280 MHz); 0.5 dB (1550-1610 MHz)
Axial ratio
Max 1.2 dB at the zenith (1166-1280 MHz); max 0.9 dB at the zenith (1550-1610 MHz)
Beamwidth
135° (1166-1280 MHz); 125° (1550-1610 MHz)
Polarization
RHCP
VSWR
Max 2:1
Horizontal coverage
360°
Phase center variation
Max 10 mm in azimuth plane; max 10 mm down to 40° elevation; max 5 mm between samples; max 10 mm over frequency band
Gain
30 dBic at 1227 MHz, 28 dBic at 1575 MHz, 28 dBic at 1602 MHz (typical)
LNA gain
37 dB
Noise figure
1.5 dB max
Voltage
3.3 to 5 V
Current
29 mA max
Out-of-band rejection
40 dBc
Group delay variation
Less than 5 ns over GNSS bands
EMI immunity
30 V/m out of band
ESD protection
15 kV human body model, air discharge
Water/dust rating
IP67
Mounting
SMA mount
Dimensions
59.7 mm x Ø27.5 mm
Weight
About 18 g
Includes
O-ring

Questions and answers

Does this antenna work with an RTK receiver?
Yes. It receives L1, L2 and L5 on GPS plus the matching GLONASS, BeiDou and Galileo bands, which is what RTK needs for fast fixes and reliable ambiguity resolution. Your receiver must supply bias power to the active element.
How is it different from an L1-only patch antenna?
It adds L2 and L5 plus the other constellations, so the receiver gets more satellites and better multipath rejection. The helix element also holds pattern and polarization better than a small patch, which matters for accuracy in cluttered sites.
What connector does it have?
It has an integrated SMA connector. Check whether your receiver or cable uses SMA or RP-SMA before you mount it.
Is it weatherproof?
The housing is IP67 automotive grade and comes with an O-ring for sealing at the mount. That covers rain and dust, but the connector joint still needs to be sealed properly.
What is in the box?
The antenna with its integrated SMA connector and an O-ring. Mounting hardware and cable are not listed, so plan for those separately.
Does it need power?
Yes, it is an active antenna, so the receiver or a bias tee must feed DC power up the coax. A passive-only input will not drive it.
Where is the L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna cheapest?
At GNSS Store, for $80.06, as of our latest check.
What do buyers say about the L1/L2/L5 High Performance Multiband RTK GNSS Active Quad Helix Antenna?
Rated 5 out of 5 from 4 ratings.

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