GNSS Chip Antenna Hookup Guide
How Well Do the Antennas Perform?
Here’s our preliminary findings:
Antenna Name | SIV[1] | PDOP[2] | HDOP[3] |
---|---|---|---|
Molex Molded | 5 | 2.2 | 1 |
W3011 | 9 | 1.47 | 0.69 |
W3062A | 6 | 2.48 | 1.16 |
Molex Chip | 5 | 2.27 | 1.18 |
Molex Cube | 10 | 1.16 | 0.63 |
TE Puck | 9 | 1.27 | 0.68 |
Molex Flexible[4] | 10 | 1.14 | 0.62 |
1 - Satellites in view: The number of satellites an antenna was able to detect after 60 seconds of searching. Higher is generally better.
2 - Position Dilution of Precision: The accuracy of the 3D solution being output by the receiver. A lower number is better. Meaning of numbers can be found on Wikipedia.
3 - Horizontal Dilution of Precision: The accuracy of the horizontal location solution being output by the receiver. A lower number is better. Meaning of numbers can be found on Wikipedia.
4 - The Flexible Adhesive GPS Antenna is not on the GNSS Chip Antenna Evaluation Board but performed impressively.
These results are provided for illustration only. Testing was done using a Ublox ZED-F9P on the RTK2 with 60 seconds to obtain satellites from a cold start. Your results will vary greatly based on how clear your view is of the sky, where you are located, and the type of GPS receiver used.
As you can see, the larger antennas tend to pick up more satellites. The interesting outliers are the flexible antenna (arguably the largest of all the antennas) and the Pulse W3011 (arguably one of the smallest, best performing antennas).