High Frequency Internet Protocol
acronyms: HFIP or HF-IP.
Usually associated with Automatic Link Establishment

Automatic link establishment

Automatic Link Establishment, commonly known as ALE, is the worldwide de facto standard for digitally initiating and sustaining HF radio communications. ALE is a feature in an HF communications radio transceiver system, that enables the radio station to make contact, or initiate a circuit, between...

 and HF radio data communications.
HFIP provides protocol layers enabling internet file transfer, chat, web, or email.
HFIP commonly uses ionosphere

Ionosphere

The ionosphere is a part of the upper atmosphere, comprising portions of the mesosphere, thermosphere and exosphere, distinguished because it is ionized by solar radiation. It plays an important part in atmospheric electricity and forms the inner edge of the magnetosphere...

 propagation of radio waves to form a wide area network that can span thousands of kilometers. HF transceivers in HFIP service typically run 20 to 150 Watts for portable or mobile units, up to approximately 2000 Watts transmitter output for high power base stations with HFIP servers.

STANAG 5066

STANAG 5066

STANAG 5066 is a NATO specification to enable applications to communicate efficiently over HF radio.STANAG 5066 provides peer protocols that operate above an HF modem and below the application level...

 is a common HFIP standard.

An amateur radio

Amateur radio

Amateur radio is the use of designated radio frequency spectrum for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication...

 HFIP network called HFLINK uses Automatic Link Establishment for initiating data communications, with ARQ

ARQ

Automatic Repeat reQuest , also known as Automatic Repeat Query, is an error-control method for data transmission that uses acknowledgements and timeouts to achieve reliable data...

 8FSK frequency shift keying and PSK phase shift keying signals.