SA275

High precision, multi-band L1/L2/L5 RHCP helical Active GNSS Antenna.

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Features

• 3V to 6V - 45mA power supply

• Sealing rubber ring (IP67)

• Low noise, High gain (32dB)

• Excellent out-of-the band rejection

• Small and lightweight

• Gold plated SMA-J connector

Applications

• Drones

• RTK Base or Rover

• Ground vehicles

• Precise navigation

• Portable devices

In production

Description

The Siderion SA275 is a high-performance helical multi-band active GNSS antenna designed for precision navigation and positioning applications. Leveraging multi-arm, multi-feed point technology, it supports L1, L2 & L5 signal reception across BeiDou, GPS, GLONASS and Galileo satellite systems. Engineered with a built-in multi-stage filter and low-noise amplifier, the SA275 delivers superior out-of-band suppression and robust anti-interference capabilities, ensuring reliable operation even in harsh electromagnetic environments. Its IP67-rated enclosure ensures dustproof and waterproof protection, and with an operational temperature range of -40°C to +85°C, the SA275 is built to deliver reliable performance in the most demanding environments.

Device summary

Order ref code	Temperature range [°C]	Product size [mm]	Weight [g]
SA275	-40 to +85	54.0 x 27.8	18

Specifications

Antenna

Symbol	Parameter	Value
Arch	Antenna architecture	Quadrifilar helix
Gband	GNSS signal bands	GPS: L1/L2/L5 GLONASS: G1/G2 BDS: B1/B2/B3 Galileo: E1/E5/E6
Gpp	Peak gain	≥2.0 dBi
Pol	Polarization	RHCP
Arat	Axial ratio @ zenith	≤3.0dB
Acov	Azimuth coverage	360°
Z	Impedance	50Ω

Low Noise Amplifier

Mechanical & Environmental

Mechanical Drawings