OpenPlotter4 on RPi4 – AIS/GNSS/Sensors

Introduction In previous posts I looked at OpenPlotter2, then recently OpenPlotter3 (Ref.1/6). I looked at various aspects including GPS, AIS, WeFax, Navtex and Sensors. In this post I will look at OpenPlotter4 on RPi4 with AIS, GNSS and Sensors. Installation Figure 2 shows the OPV4 starter image which I downloaded from Ref.7. Then I used… Continue reading OpenPlotter4 on RPi4 – AIS/GNSS/Sensors

Propagation Testing with GNSS on OpenStreetMap

Introduction In the previous post I did a walkabout to test the propagation testing equipment on OpenStreetMap (Ref.1). In this post I do the same thing but actually drive over a greater portion of the map area. For reference purposes I use Toronto Marine Weather at 162.4MHz as the test signal. Equipment Block Diagram Figure… Continue reading Propagation Testing with GNSS on OpenStreetMap

GNSS on OpenStreetMap

Introduction Several years ago I read an interesting article on how to marry your spectrum analyzer, GPS and map software to do a propagation drive test (Ref.1). In previous posts I looked at using a new GNSS receiver for use with Radio Mobile for propagation testing (Ref.2). So in this post I will incorporate the… Continue reading GNSS on OpenStreetMap