Recommended External Antenna Specification

There is a built-in antenna on the GPS Lure, as well as a U.FL connector for an external GPS antenna. The system will automatically switch to the external antenna when it is connected.

It is important that the antenna gets a clear view of the sky and is positioned on a surface level to the horizon for best results.

Here is the manufacturer’s recommended specification for a suitable external antenna:

Characteristic	Specification
Polarization:	Right-hand circular polarized
Frequency Received:	1.57542GHz +/- 1.023MHz
Power Supply:	3V to 3.6V
DC Current:	4mA ~ 20mA at 3.3V
Total Gain:	>+ 15dBi (Two-stage LNA)
Output VSWR:	< 2.5
Impedance:	50ohm
Noise Figure:	< 1.5dB