GrAnt-G2T-JS-HPO GNSS Antenna


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The GrAnt-G2T-JS-HPO GNSS antenna from JAVAD GNSS is a versatile and high-performance antenna, featuring J-Shield filters for signal protection and improved receiver performance.



The GrAnt-G2T-JS-HPO GNSS antenna from JAVAD GNSS is a versatile, high-performance antenna. It can be mounted on flat surfaces with four screws or mounted on standard poles. The antenna cable can be connected via the standard TNC (N-type optional) connector on its side or routed through the center of the antenna for ultimate protection in harsh environments.

The GrAnt-G2T-JS-HPO can track GPS, Galileo, WAAS, EGNOS, MSAS, GAGAN, and QZSS signals.

J-Shield is the filter that protects GPS L1 and Galileo L1 bands. It brings in all the useful signals intact and rejects out-of-band signals with a slope of about 12 dB/MHz.

Similarly, it is this filter that protects GPS L2, GPS L5, and Galileo L5 and has a slope of about 9 dB/MHz. These filters have been extensively tested with five different innovative tests and prove that the filters also improve GNSS receivers’ performance.

The JS-HPO antenna option is characterized by an increased dynamic range of input in-band signals.

An optional ground plane can be purchased to increase multipath mitigation.

Technical Specifications

Capability:GPS L1/L2/L2C/L5, Galileo E1/E5ab, WAAS L1/L5, EGNOS, MSAS, GAGAN, QZSS L1/L2/L2C/L5
Frequency:1555-1595 MHz, 1155-1245 MHz
Antenna Gain:1555-1595 MHz, 4.0 dB typical
1155-1245 MHz, 5.0 dB typical
Axial Ratio Output:3.0 dB max
Impedance:50 Ohm
LNA Gain:33±3 dB
Noise Figure:2.8 dB typical
Input Voltage:+4.5 to +15.0 VDC
Power Consumption:0.9 W max
Current:200 mA @ 5.0V max
Operating Temperature:-45°C to +85°C
Storage Temperature:-50°C to +85°C
Humidity:Waterproof, 100% non-condensing, IP68
Antenna Type:Microstrip
Connector:TNC; N-type (optional)
Dimensions:140 mm x 140 mm x 62 mm
Weight:515 g
Enclosure:Radome: ABS, Base: Aluminum
Mounting:5/8-11 or 1-14 inches mount, or 4 holes M5

Why Buy from Us?

In business since 2004, Canal Geomatics is an authorized dealer for JAVAD GNSS and has established itself as an industry-leading distributor of high-precision positioning products in North America. Our mission is to find the best solution for each unique application and extend premium support to ensure the long-term success of our customers. We offer both volume and reseller discounts for the majority of our product lines.


The GrAnt-G2T-JS-HPO GNSS antenna from JAVAD GNSS is available through Canal Geomatics. If you would like more information about this product, please feel free to get in touch with us by completing the Request Pricing form.