Back in the dawn of the Internet, the AX25 protocol was created for data transmission over amateur radio.   AX25 is related to layer 2 of the  X.25 protocol suite. One of the CDL Makerspace* projects under consideration for 2020 is building an X.25 / AX25 gateway, and integrating it's 802.11 related cousin, AREDN on 2.4 and 5.0 GHz If you are interested in participating, please reply off list to keep the list clutter down. Martin *the CDL Makerspace is adjacent to the the VCF Museum operated by the /VCF/ Mid-Atlantic chapter on the Camp Evans campus in Wall New Jersey.