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Monday, 26 Jun 2017

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GNSS antennas are a critical but often overlooked part of a receiver setup. Choosing a correct antenna is hugely important since antennas are the main interface between the GNSS space segment and the user, as they capture the L-band signals transmitted by satellites. Antenna must be able to convert the energy in the electromagnetic waves arriving from the satellites into an electric current that is further processed by the receiver. Given that signals received from GNSS satellite are weak and arriving from any direction, it is clear that choosing the correct antenna is imperative. Choosing the optimal GNSS antenna for the application will maximize GNSS receiver’s positioning performance.

NVS Technologies provides a wide range of high quality antennas to suit a wide variety of applications and markets. To access the product specific page, please click on the corresponding receiver below.

High Performance Active GPS L1 / GLONASS L1 antenna

The NV2410 is a professional grade GNSS antenna covering the GPS L1, GLONASS L1 and SBAS (WAAS, EGNOS & MSAS) frequency band (1574 to 1606 MHz).  It is especially designed for precision industrial, agricultural and military applications and offers excellent circular polarized signal reception, multipath rejection and out of band signal rejection.

Additional Info

  • Description: The NV2410 features a dual-feed wideband patch element, with a two stage Low Noise Amplifier, comprised of one input LNA per feed, a mid section SAW to filter the combined output, and a final output gain stage.  This configuration provides excellent axial ratio that is constant across the full frequency band.
    The NV2410 is housed in a compact, industrial-grade weather-proof, magnet mount enclosure, and comes with a 5 metre flying lead or a SMA female connector.

    Applications
    •    High Accuracy & Mission Critical GNSS
    •    Precision Agriculture, Mining & Construction
    •    Military & Security
    •    Avionics
    •    Law Enforcement & Public Safety
    •    Fleet Management & Asset Tracking

    Features
    •    Great axial ratio: 3 dB over full bandwidth
    •    Low noise LNA: <=1 dB
    •    High rejection SAW filter
    •    LNA gain:  25 dB typ.
    •    Low current: 10 mA typ.
    •    Wide voltage input range: 2.5 to 5.5 VDC
    •    IP67 weather proof housing

    Benefits
    •    Excellent multipath rejection
    •    Increased system accuracy
    •    Excellent signal to noise ratio
    •    Great out of band signal rejection
    •    Ideal for harsh environments
    •    RoHS compliant
  • Specifications: Architecture - Dual, Quadrature Feeds
    1 dB Bandwidth 30 MHz
    Antenna Gain (with 100mm ground plane) 5 dBic
    Axial Ratio over Bandwidth (over full bandwidth) <=3 dB


    Electrical
    Architecture                        
    One LNA per feed line, mid section SAW filter

    Filtered LNA Frequency Bandwidth - 1574 to 1606 MHz
    Polarization - RHCP
    LNA Gain 25 dB min., 1575.42 to 1606 MHz
    Gain flatness +/- 2 dB, 1575 to 1605 MHz
    Out-of-Band Rejection       
    32 dB >1640 MHz
    25 dB >35 dB

    VSWR (at LNA output) <1.5:1
    Noise Figure <=1 dB typ.
    Supply Voltage Range (over coaxial cable) +2.5 to 5.5 VDC nominal
    Supply Current 10 mA typ.
    ESD Circuit Protection 15 KV air discharge

    Mechanicals & Environmental
    Mechanical Size 57 mm dia. x 15 mm H
    Connectors SMA female on housing, or SMA male on flying lead - other connectors optional 
    Cable RG174 / 5 metres, other lengths optional
    Operating Temp. Range -40 to +85 °C
    Enclosure Radome: ASA Plastic, Base: Aluminum 
    Weight 150 g
    Attachment Method Magnet or permanent (pre-tapped 4 x 6-32 UNC)
    Environmental IP67 and RoHS compliant
    Shock Vertical axis: 50 G, other axes: 30 G
    Vibration 3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G
    Warranty One year, parts and labour