High Frequency Internet Protocol (HFIP or HF-IP) is usually associated with
Automatic Link Establishment and
HF radio data communications. HFIP provides
protocol layers enabling internet file transfer,
chat,
web
Web most often refers to:
* Spider web, a silken structure created by the animal
* World Wide Web or the Web, an Internet-based hypertext system
Web, WEB, or the Web may also refer to:
Computing
* WEB, a literate programming system created b ...
and
email
Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronic ( digital) version of, or counterpart to, mail, at a time when "mail" mean ...
. HFIP commonly uses
ionospheric propagation
In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere. Since it is not limited by the curvature of ...
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 (Profile for High Frequency (HF) Radio Data Communication) is a NATO Standardization Agreement specification to enable applications to communicate efficiently over HF radio.
STANAG 5066 provides peer protocols that operate above an HF ...
is a common HFIP standard.
An
amateur radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communi ...
HFIP network called HFLINK
uses Automatic Link Establishment for initiating data communications, with
ARQ 8FSK
frequency-shift keying and PSK
phase-shift keying
Phase-shift keying (PSK) is a digital modulation process which conveys data by changing (modulating) the phase of a constant frequency reference signal (the carrier wave). The modulation is accomplished by varying the sine and cosine inputs ...
signals.
References
Internet protocols
Amateur radio
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