Battery Automatic Poweroff Relay For Ham Radio
01/09/2020
Ryan, KC9OZA reviews the APO3 from www.aprsworld.com/apo3/
APRS
2 Meter VHF 144MHZ Long Distance Propagation
09/27/2019
Check out http://aprs.mennolink.org/ for real time VHF FM propagation. This video by Ham Radio Concepts is a great introduction to this service.
VHF Propagation map
01/04/2019
Introduction to APRS
09/21/2018