Email Us: [javascript protected email address] Toll Free: 1-866-642-1880

GPS Source MRPA-3SA-SF MRPA Active GNSS Antenna

The MRPA-3SA-SF MRPA active GNSS antenna from GPS Source is a professional grade, horizon-nulling antenna designed for both military and civilian applications.



The MRPA-3SA-SF MRPA active GNSS antenna from GPS Source is a professional grade, active horizon-nulling GNSS antenna designed for long term reliability. Based on the acclaimed GNSS antenna base model, the MRPA (Modified Reception Pattern Antenna) is designed to null terrestrial interferences arriving at low elevation angles.

Designed to support the Warfighter, the portable, yet precise GNSS antenna is built for tough applications. The radome is made of a high-grade polymer, with a design to protect from UV, rain, lightning, chemical, and jet fuels. The MRPA-3SA active horizon-nulling GNSS antenna is available with a side mount connector and multiple colors (per FED-STD-595B).

The MRPA series was designed for both military and civilian applications, and is available in two models, the MRPA-3SA side mount and the MRPA-3A bottom mount.

The MRPA-3SA-SF GNSS antenna comes with many available options to meet specific needs. Available product options are listed in the datasheet.


  • GPS L1, L2, L5
  • GLONASS L1, L2, L3
  • GALILEO E1, E5, E6
  • Waterproof
  • Improved gain at zenith over standard FRPA
  • Minimum 20 dB of rejection at 10 to 20 degree elevation angles

Technical Specifications

GPS: L1, L2, L5
Galileo: E1, E5, E6
Out Impedance: 50 Ω
Output SWR: 2:1 (Output = 50 Ω)
Polarization: Right Hand Circular
Axial Ratio at Peak: < 2.0 dB Max
Beam Width: 60° ± 5° at 3 dB
Altitude: 50,000 ft
Lightning Protection: DC to Ground on the Antenna Element
Operating Temperature: -54°C to 71°C
Mechanical Vibration: 810G Mtd 514.6, Proc. I
Functional Shock: 810G Mtd 516.6, Proc. I
Crash Hazard Shock: 810G Mtd 516.6, Proc. V
Temperature: 810G Mtd 501.5, Proc. I & II
Low Temperature: 810G Mtd 502.5, Proc. I & II
Temperature Shock: 810G Mtd 503.5, Proc. I-C
Altitude: 810G Mtd. 500.5, Proc. II & III
Humidity: 810G Mtd 507.5, Proc. II
Salt Fog: 810G Mtd 509.5
Fungus: 810G Mtd 508.6
Sand and Dust: 810G Mtd 510.5, Proc. I & II
Conducted Emissions: 461F CE106
Radiated Emissions: 461F RE102
Radiated Susceptibility: 461F RS103


The MRPA-3SA-SF MRPA active GNSS antenna from GPS Source can be ordered through TerrisGPS. If you would like to know more about this product, please fill out the Request Pricing form and send us your inquiries.

Testimonial Icon

Client Testimonials

This page is having a slideshow that uses Javascript. Your browser either doesn't support Javascript or you have it turned off. To see this page as it is meant to appear please use a Javascript enabled browser.

"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
"Thanks for all the troubleshooting help, also to John for his assistance and the prompt answers from you guys!"
F.A. - Survey Industry

Testimonial Icon

Copyright , TERRISGPS, All rights reserved, Privacy Policy, Terms