RTK Antenna and Full Frequency GNSS Repeater System for Indoor Satellite Coverage

Satellite positioning failures often happen when signals cannot penetrate buildings, underground areas, or industrial facilities. A reliable rtk antenna solution helps improve positioning accuracy, but many applications still require stable satellite signals in environments without direct sky visibility.

VLG’s Full Frequency Satellite Repeating System solves this challenge by transferring outdoor satellite signals into indoor areas through a GNSS repeater, active antenna, and passive antenna combination. Supporting GPS L1/L2/L5, BDS B1/B2/B3, GLONASS L1/L2, Galileo E1/E5a/E5b/E6, and L-band frequencies, this system helps you build reliable indoor GNSS coverage for testing, manufacturing, aviation, and positioning applications.

RTK Antenna and GNSS Repeater System Overview

A traditional GNSS receiver depends on direct satellite visibility. However, factories, laboratories, parking facilities, and aviation maintenance areas often have weak or unavailable satellite signals.

VLG’s GNSS repeater system captures satellite signals outdoors and retransmits them indoors, creating a stable positioning environment for equipment testing and operational use.

The system includes:

• 1 × GNSS repeater
• 1 × Active GNSS antenna
• 1 × Passive GNSS antenna
• 1 × Power adapter
• 1 × 30m TNC-J to N-J cable
• 1 × 20m TNC-J to N-J cable
• 2 × Antenna poles

As a professional antenna solution provider, Shenzhen VLG Wireless Technology Co., Ltd. integrates antenna R&D, manufacturing, and testing capabilities to support customized GNSS and satellite communication requirements.

How VLG GNSS Repeater Improves RTK Antenna Applications

1. Extends Satellite Signal Coverage

The full-frequency GNSS repeater receives outdoor satellite signals and distributes them into areas where direct satellite reception is difficult.

Typical application environments include:

• Aircraft manufacturing workshops
• Aviation maintenance facilities
• Indoor demonstration halls
• Underground parking areas
• Satellite positioning product testing laboratories

This makes it easier for engineers and manufacturers to verify GNSS products without outdoor testing conditions.

2. Supports Multi-Constellation Satellite Positioning

VLG’s system supports multiple satellite navigation systems, allowing compatibility with different positioning platforms.

Compared with standard GPS antennas, a full-frequency GNSS repeater provides wider satellite signal compatibility for industrial testing and high-precision positioning applications.

3. Provides Active and Passive GNSS Antenna Solutions

The system combines outdoor active antenna reception with indoor passive antenna transmission.

Key antenna specifications include:

Active GNSS Antenna

• Frequency: GPS L1/L2/L5, BDS B1/B2/B3, GLONASS L1/L2, Galileo E1/E5a/E5b/E6, L-band
• Polarization: RHCP
• LNA Gain: 40±2dBi
• VSWR: <2.0
• Operating temperature: -40°C to +85°C

Passive GNSS Antenna

• Frequency: Full GNSS bands
• Polarization: RHCP
• Gain: ≥5dBi
• VSWR: <2.0
• Operating temperature: -40°C to +85°C

These specifications allow the system to operate reliably in demanding industrial environments.

Why Choose VLG for GNSS Antenna Solutions

VLG focuses on wireless antenna technology and provides antenna solutions for automotive, IoT, GNSS, and NTN network applications.

The company has strong engineering and manufacturing capabilities:

• Established in 2005
• More than 100 technical engineers
• More than 100 patents
• Over 8,000㎡ manufacturing workshop
• 6+ R&D centers in Shenzhen, Huizhou, Shanghai, Xi’an, Hangzhou, and Hong Kong
• Certified with ISO9001, ISO14001, and IATF 16949

VLG also operates 18 microwave anechoic chambers, including testing equipment from SATIMO, ETS, and Bluetest, supporting active and passive antenna performance verification.

How to Deploy a Full Frequency GNSS Repeater System

Follow these steps to establish indoor satellite signal coverage:

1. Install the active GNSS antenna outdoors
   • Place the antenna in an open area with clear satellite visibility.
2. Connect the antenna with the GNSS repeater
   • Use TNC-J to N-J cables for signal transmission.
3. Adjust repeater gain settings
   • Configure the gain controller from 0dB to 30dB according to coverage requirements.
4. Install the passive GNSS antenna indoors
   • Position the antenna in the target coverage area.
5. Test positioning performance
   • Verify satellite signal availability and receiver positioning accuracy.

RTK Antenna vs GNSS Repeater System

FAQ

1. Can a GNSS repeater replace an RTK antenna?

No. A GNSS repeater improves satellite signal availability, while an RTK antenna focuses on receiving positioning signals with high accuracy. They are often used together in professional positioning systems.

2. Which satellite systems does VLG GNSS repeater support?

The system supports GPS, BDS, GLONASS, Galileo, and L-band frequencies, covering major global navigation satellite systems.

Conclusion

Reliable satellite positioning requires stable signal access, especially in indoor and industrial environments. VLG’s rtk antenna and full-frequency GNSS repeater system provide a practical solution by extending GPS, BDS, GLONASS, Galileo, and L-band signals into areas with limited satellite visibility.

With certified manufacturing systems, advanced antenna testing facilities, and years of wireless technology experience, VLG helps customers develop dependable GNSS coverage solutions for positioning tests, industrial applications, and smart connected devices.

Contact VLG today to discuss your GNSS repeater or customized RTK antenna solution requirements and receive professional technical support.