https://swarm.space/
https://www.sigfox.com/en/coverage
tracking:
https://ttn-slsp2020.gospace.sk/LoRaWanBalloon/01_map.php
Baloon:
eval:
Iridium :
ARPS:
APRS must work everywhere to be a true resource to the mobile ham radio operator. In North America, 144.39 MHz is dedicated throughout the continent. In Europe, use 144.80 and in Australia use 145.175 MHz..
http://www.aprs.org/
https://hackaday.com/tag/aprs/
https://hackaday.com/2015/03/24/aprs-tracking-system-flies-your-balloons/
AMSAT
https://www.amsat.org/wordpress/xtra/Getting%20Started%201.pdf
https://www.youtube.com/watch?v=AaquOMPkf3Y
PICO ARPS
https://www.google.com/search?q=DB1NTO+PicoARPS&rlz=1C1GCEA_enDE974DE974&oq=DB1NTO+PicoARPS&aqs=chrome..69i57.5276j0j7&sourceid=chrome&ie=UTF-8
AVRT5 APRS Tracker VHF with GPS/Bluetooth/
https://www.eham.net/reviews/view-product?id=13407
(I came across this device last year online, took the chance and purchased one. After reading the forums and seeing several others having problems with the USB interface, I noted the following:
- users *MUST MUST first upload the firmware to the device before it will boot. This is a case of RTFM, and requires the USB cable (above) to work correctly.
Once you overcome these initial hurdles, it does work great! Simple, accurate, and extremely useful.
I have used this running 1W and a 5/8w on the roof of the car, with pretty decent results around South Texas. I added a 25w 2m amp to it I purchased used at a hamfest, and have experimented with both a 1/4w and 5/8w magmount with excellent results with daily use and for public service events. This unit has an internal battery that will run for several hours, but using a Mini-USB cable and 12v adapter it will run indefinitely. There are a few people on the forums who have replaced the expired battery with a set of electrolytic capacitors with good results.
Also, for high altitude balloon launches, there is a modification available for altitude limitations.)
https://www.byonics.com/microtrak
Must read book about ARPA: