17751

Antennas RF Overview

The SparkFun GPS-17751 is an active GNSS/GPS surveying antenna manufactured by TopGNSS. It supports L1/L2 bands for GPS, GLONASS, Galileo, and BeiDou constellations. Key electrical parameters include a minimum frequency of 1.198 GHz, maximum frequency of 1.615 GHz, gain of 5 dBi, bandwidth of 80 MHz/60 MHz, impedance of 50 ohms, and VSWR of 2. Operating temperature ranges from -40°C to +85°C.

Antennas RF Feature Summary

• Certified multi-constellation support for high-precision surveying applications
• Integrated Low Noise Amplifier (LNA) for signal enhancement
• IP67 ingress protection rating for outdoor durability
• TNC female termination with screw mount configuration

Antennas RF Applications

• RTK surveying equipment mounting
• Multi-constellation GNSS data collection
• Outdoor geospatial positioning systems

Antennas RF Procurement Notes

Verify the manufacturer designation as SparkFun Electronics while noting the component is produced by TopGNSS. Confirm the TNC female interface and IP67 rating match project requirements. Ensure compatibility with existing surveying mounts using the specified screw mount type. Cross-reference the Mouser part number 474-gps-17751 for accurate sourcing.

Antennas RF Selection Notes

Select this model for applications requiring simultaneous reception of GPS, GLONASS, Galileo, and BeiDou signals on L1/L2 bands. The 5 dBi gain and integrated LNA suit long-range or low-signal environments. Verify mechanical fit for TNC connectors and screw mounting constraints before integration into surveying hardware.

Antennas RF Part Context

This component belongs to the SparkFun Electronics antenna product line, specifically categorized under multiprotocol antennas. It serves as an outdoor solution for professional surveying tasks. The part is distinct from general-purpose GPS modules, focusing instead on raw RF signal acquisition for external processing units.

Antennas RF Replacement Considerations

SPX-17751 is a confirmed substitute variant featuring panel mount installation instead of screw mount, while retaining identical electrical specifications and IP67 rating.