APRS INFO

YAAC  https://www.ka2ddo.org/ka2ddo/YAAC.html

https://aprsdirect.de/    

http://www.aprs.org/

aprs.fi

http://aprs.mennolink.org/#

lora aprs

lora-aprs

https://github.com/G4lile0/tinyGS/wiki

https://tinygs.com/

http://map.aprsmap.org/

DIY 

https://github.com/handiko/Arduino-APRS

https://github.com/DL7AD/pecanpico9

https://github.com/trackuino/trackuino

LightAPRS tracker

http://qrp-labs.com/lightaprs
https://github.com/lightaprs/LightAPRS-1.0

HF APRS
http://js8call.com/
https://bx2ai.blogspot.com/2020/07/hf-aprs-js8call-tracker.html
https://bx2ai.blogspot.com/2020/07/hf-aprs-js8call-igate.html

Cross Country Wireless APRS Messenger
http://www.crosscountrywireless.net/aprs_messenger.htm
Wireless APRS Messenger這個程式在win10有問題無法開啟，開發者已不再開發

飛機位置

https://www.flightradar24.com/
https://planefinder.net/

AIS

https://www.marinetraffic.com
https://www.vesselfinder.com/