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B-GSMGNSS SHIELD ENABLE ACTIVE GNSS ANTENNA HOWTO

 

About this tutorial

Find how to enable the active GNSS antenna powering circuitry for b-gsmgnss shields. Also, you may find the pads for 1PPS signal and raw GNSS UART TX.

 

Platforms: ARDUINO, BEAGLEBONE, TEENSY, RASPBERRY PI or other 2.8V-5V micro-controller or SBC.

 

Time needed: maximum 5 minutes.

 

Previous skills required: Soldering.

 

b-gsmgnss shield enable powering for GNSS active antenna

b-gsmgnss shield enable powering for GNSS active antenna

In the image up-here, notice:
a. The "jumper GNSS antenna power selector" solder jumper. To enable the powering for active GNSS antennas, just solder over the two pads of this jumper [close the powering circuit].
b. 1PPS signal [output, 2.8V] and RAW GNSS TX port [output, 2.8V] having 115200bps, 8,N,1.

HINTS:
1. Always double check what you've done, before powering.
2. You may use GPS only antenna, but the GLONASS satellites will be seen with not so good/proper signal/noise ratio [the GLONASS bandwidth is different from GPS one]. In 99% of the cases this crack will work for you. Anyway, we recommend combo GPS+GLONASS antenna usage.

 

 

TUTORIAL PROVIDED WITHOUT ANY WARRANTY!!! USE IT AT YOUR OWN RISK!!!!

 

 

 

Original how to written by Dragos Iosub & itbrainpower.net team

 

 

 

 

document version 1.01 / 2017-11-01 © R&D Software Solutions srl