GNSS Antennas・Accessories

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.

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

GNSS (Timing, Automotive/Industrial)

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Three essential points when installing a GNSS antenna

Features
Specifications
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Three essential points when installing a GNSS antenna
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Features

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

Specifications

General

Input Frequency

1575.42MHz±1.023MHz

Polarization

R. H. C. P. (Right Hand Circular
Polarization)

Antenna Gain

>= 0dBi (at 90° elev. angle)
>= -10dBi (at 5° elev. angle)

Output Impedance

50Ω

Pre. Amp Gain

32±3dB

Pre. Amp Noise Figure

<= 2.1dB

VSWR

<= 2.0

Supply Voltage

4 to 13VDC

Current 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

Note

Ideal for use in location with frequent/heavy snowfalls

Weight

270 g

Connector Type

BNC-J

Drawing

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.

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