Network antenna Navilock NL-250GG TNC 4 dBi

The Navilock NL-250GG TNC is a compact network antenna with 4 dBi gain and a TNC connector. It supports circular polarization and is designed to receive GPS, GLONASS and GALILEO satellite signals simultaneously. With a VSWR of 1.5/2, an impedance of 50 Ω, low current consumption (25 mA) and a small form factor (46 mm height, 66.5 mm diameter), the antenna is suitable for improving reception on GNSS and wireless network devices where a TNC connection is required.

Advantages

The antenna offers a balanced combination of gain (4 dBi) and compact size for installations with limited space. Circular polarization improves satellite signal reception consistency. A TNC connector ensures reliable mechanical connection to compatible receivers. The device operates at standard 50 Ω impedance and low power draw, making it suitable for continuous use with portable and fixed equipment.

Suitable for

• GNSS receivers requiring combined GPS, GLONASS and GALILEO reception
• Network devices and routers with TNC antenna ports
• Compact installations where a low-profile antenna is required
• Applications needing circularly polarized antennas for stable satellite tracking

Key specifications

• Model: Navilock NL-250GG (MPN: 60559, EAN: 4043619605590)
• Connector: TNC
• Antenna gain: 4 dBi
• Polarization: Circular
• VSWR: 1.5/2
• Impedance: 50 Ω
• Current consumption: 25 mA
• Dimensions: height 46 mm, diameter 66.5 mm
• Colour: White

How to use

Mount the Navilock NL-250GG on a stable surface or antenna mount and connect it to the device's TNC socket. Orient the antenna vertically for typical GNSS reception to optimise satellite visibility. Verify the receiver's settings to ensure it accepts an external antenna and monitor signal strength after installation. Secure the connector to avoid movement or intermittent connections.

Recommendations

For best satellite reception, install the antenna with a clear view of the sky away from large metal obstructions and other antennas. Use appropriate cable lengths and quality TNC cables to minimise signal loss. Regularly check connections for corrosion or loosening in outdoor or harsh environments.