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 |