Sundar Techno Solutions, Bengaluru, offers a high-performance **active GNSS antenna** designed for professional positioning, navigation and precise-timing applications.

Unlike a basic GPS antenna that may receive only one frequency, this multi-band antenna supports **L1, L2 and L5 frequency bands**. When connected to a compatible multi-frequency GNSS receiver, it can receive signals from several global and regional satellite-navigation systems.

**Major GNSS Constellations**

**NavIC – India**

India’s regional navigation system developed by ISRO for positioning, navigation and timing services across India and the surrounding region.

**GPS – United States**

The world’s most widely used global satellite-navigation system.

**Galileo – European Union**

A global navigation system designed for high-accuracy civilian positioning and timing.

**GLONASS – Russia**

A global satellite-navigation constellation operating alongside GPS and other GNSS systems.

**BeiDou – China**

A global navigation system supporting positioning, navigation, timing and communication-related services.

**What are L1, L2 and L5?**

**L1 – 1575.42 MHz:** Widely used for general navigation, tracking and timing. Compatible signals include GPS L1, Galileo E1, BeiDou B1C and newer NavIC L1.

**L2 – 1227.60 MHz:** Used by professional dual-frequency receivers to reduce ionospheric errors and improve positioning accuracy.

**L5 – 1176.45 MHz:** A modern, robust civilian navigation frequency used by GPS, NavIC, Galileo E5a and BeiDou B2a.

Using two or more frequencies helps a compatible receiver estimate atmospheric errors more accurately. Multi-constellation reception also increases the number of visible satellites, improving availability and reliability in difficult environments.

**Advertised Antenna Specifications**

• Multi-constellation, multi-frequency reception

• Supports L1, L2 and L5 frequency bands

• NavIC, GPS, Galileo, GLONASS and BeiDou capability

• Active antenna with integrated Low-Noise Amplifier

• LNA gain: 28 dB

• Low-noise figure: ≤2 dB

• RHCP—Right-Hand Circular Polarization

• Standard RF impedance: 50 Ω

• Operating temperature: –40°C to +85°C

• Integrated coaxial cable and RF connector

• Suitable for industrial, vehicle and outdoor installations

Connector type, cable length, mounting arrangement, IP protection and precise frequency coverage can be offered or confirmed according to the project requirement.

**Applications**

RTK surveying and land mapping

GIS and geospatial data collection

NavIC receiver integration

Precision agriculture and tractor guidance

Drones, UAVs and autonomous vehicles

Railway positioning and monitoring

Fleet management and vehicle tracking

Marine navigation and port automation

Telecom, 4G and 5G time synchronization

Smart grids, substations and power utilities

Industrial IoT gateways and remote stations

Mining and construction machinery

Defence and surveillance platforms

Robotics and machine control

Weather stations and scientific research

GNSS base stations and reference stations

Time servers, data centres and broadcast systems

**Why Multi-Constellation and Multi-Frequency Reception?**

• More visible satellites

• Better availability in partially obstructed locations

• Improved positioning stability

• Better atmospheric-error correction

• Reduced dependence on a single navigation system

• Suitable for RTK, differential and correction-enabled receivers

• Supports positioning, navigation and precise timing

• Designed for demanding industrial temperature conditions

**Important:** Final accuracy depends on the complete system—including the GNSS receiver, correction service, antenna position, cable loss, visible satellites and surrounding environment. An L1/L2/L5 antenna alone does not automatically provide centimetre-level accuracy; RTK or PPP performance requires a compatible receiver and correction data.

NavIC S-band is different from L1/L2/L5. If your application requires **NavIC S-band reception**, please mention it separately so that the correct antenna and receiver combination can be selected.

**PAN-INDIA SALES AND SUPPORT**

Sundar Techno Solutions serves customers across Bengaluru, Mysuru, Mangaluru, Chennai, Coimbatore, Hyderabad, Visakhapatnam, Pune, Mumbai, Nashik, Ahmedabad, Vadodara, Delhi NCR, Noida, Gurugram, Jaipur, Chandigarh, Kolkata, Bhubaneswar, Kochi, Thiruvananthapuram, Indore, Bhopal, Lucknow, Nagpur, Raipur, Ranchi, Jamshedpur and other locations across India.

**Contact Sundar Techno Solutions**

**Sundar Techno Solutions**

Bengaluru, Karnataka, India

WhatsApp/Mobile: **+91 94820 81014**

Email: **[sales@sundartechno.com](mailto:sales@sundartechno.com)**

Website: **[www.sundartechno.com](http://www.sundartechno.com)**

Please share your required GNSS constellations, frequency bands, receiver model, connector type, cable length, mounting arrangement, quantity and application when requesting a quotation.

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