GPS/GNSS Antennas

GPS Antenna (For Timing) Model GPA-014

Antenna for GPS, Galileo and QZSS L1 (1575.42MHz) reception.
Ideal for use in location with frequent/heavy snowfalls

The GPA series is a GPS/GNSS antenna for Timing that is intended for installation on buildings.
GPA-014B is designed to withstand harsh outdoor environments including rain, wind, sunlight and temperature changes, and is also equipped with a radome that prevents signal attenuation due to snow accumulation.

Documents, Software

New Products: Dual/Single-band GNSS Antennas AU-500/300 deliver both high stability and high robustness



  • GPS antenna for snowy areas

  • Standard BNC Connection

  • Water resistant equivalent to JIS C 0920 IP-X6

  • Easy installation with optional use of antenna mounting bracket

  • Recommended Timing GPS

    Timing GNSS receiver module: GT-8777



Input Frequency
R. H. C. P. (Right Hand Circular
Antenna Gain
>= 0dBi (at 90° elev. angle)
>= -10dBi (at 5° elev. angle)
Output Impedance
Pre. Amp Gain
Pre. Amp Noise Figure
<= 2.1dB
<= 2.0
Supply Voltage
4 to 13VDC
Power Consumption
25mA(Typ) to 30mA(MAX)
Operating Temperature
-30°C to +80°C
Storage Temperature
-40°C to +85°C
Weather Resistant
Equivalent to JIS A 1415 WS
Water Resistant
Equivalent to JIS C 0920 IP-X6
Salt-Water Resistant
Equivalent to JIS Z 2371
Ideal for use in location with frequent/heavy snowfalls
270 g
Connector Type


Three essential points when installing a GNSS antenna

When installing a GNSS antenna, components such as the coaxial cables and amplifiers should be selected to satisfy the antenna specifications of the GNSS receiver. It is also necessary to consider the propagation delay between the antenna and the receiver.  

In the following document, we explain how to calculate the required specification values with concrete examples from the viewpoint of a GNSS receiver manufacturers.

  • Total gain
  • Total NF
  • ropagation delay in coaxial cables

It is especially useful for those who are new to GNSS receivers. We have prepared an Excel tool for calculating "Total Gain" and "Total NF" due to their complex formulas.

Please fill in the form to download the document and calculation tool.

Download form

Documents, Software

Download documents and software related to this product and other GPS/GNSS products (Specifications document, Drivers and Monitor software).

Download contents for GPA-014

  • GNSS Antenna Installation Procedure
  • GNSS Antenna Installation Appendix
    - Three essential points when installing a GNSS antenna -
  • Hardware Specifications (Surge Protective Device)
  • Surge Protection Device Test Report

Download page


* Specifications subject to change without notice.