KE8CRV Radio Projects

Here is a shell script to receive APRS packet audio through the microphone input: arecord -f S16_LE -c 1 -r 48000 -D hw:CARD=Device,DEV=0 ...

Open GIS Server with Raspberry Pi and Radio Presentation Slides This was a side project I worked on at night to see if I could run a geo...

Finding sources of GIS data can be frustrating for several reasons: Many formats and coordinate systems Lack of metadata Data has not b...

With a couple command lines, you can convert US Topo Map pdfs into layers that can be used in GIS or to form a basemap that can be used offl...

Here is a preview of the ODroid C2 stack.  Currently the brass standoffs are mounted to a piece of acryllic I got from Menards.  Still ...

I noticed that when you use the web browser to load layers into GeoNode, the data gets stored and uncompressed in /tmp.   This is a problem,...

One of the great things about the Kenwood TH-D74A is how easy APRS is to use. However I was puzzled for a few days because I could not make ...