Formerly the ANT-A71GLA4-TW.

The 42GO16A4-XT-1-Cert is an active L1 GNSS antenna, offering combined GPS + GLONASS signal reception plus L-Band tracking. It is aircraft certified for navigation but is suitable for any mobile application. Customers can use the same antenna for GPS only or dual-constellation applications to increase flexibility and reduce equipment costs.


*L1 plus L-Band tracking
*GPS + GLONASS signal reception
*Screw mounting supported
*RoHS compliant


*Multi-constellation tracking will enhance solution availability
*Small form factor with good carrier-phase performance
*Enhanced differential performance with L-Band reception
*Reduces equipment costs and need for future redesign
*Flexible placement with easy installation options


General Info Length (mm) 119.39
Width/Diameter (mm) 76.20
Height (mm) 20.00
Weight (g) 191.00
Constellation GPS
Tracking Max Num of Frequency Single
Antenna Form Factor Circular Patch
Antenna Mounting Arinc
Performance LNA Gain (dB) 40

Small Form Factor

This small form factor antenna measures 76 mm in diameter by 119 mm in length. It is compact and lightweight, making it highly portable and suitable for a variety of environments and applications.

Suitable For GNSS Single Frequency Systems

The 42GO16A4-XT-1-Cert antenna is suitable for use in applications using GPS or GPS + GLONASS L1 single-frequency. L-Band offers real-time Differential GPS (DGPS) positioning with metre to decimetre level accuracy. NovAtel’s GL1DE® algorithm optimally combines L1 code and L1 phase data to produce a positioning solution well suited for applications such as agricultural guidance, where pass-to-pass repeatability is critical.


Meeting the European Union’s directive for Restriction of Hazardous Substances (RoHS), integrators can be confident the 42GO16A4-XT-1-Cert can be used in system designs for years to come.