Relay league

A relay league is a chain of message forwarding stations in a system of optical telegraphs, radio telegraph stations, or riding couriers. Early 19th century methods of this type evolved into the electrical telegraph networks of the mid-to-late 19th century.[1]

Radio relay leagues

Radio amateurs have been early in arranging relay leagues, as is reflected in the name of the organization of American Radio Relay League (ARRL).

Radio amateur message relay operations were originally conducted in the first two decades of the 20th century using Morse code via spark-gap transmitters. As vacuum tubes became affordable, operations shifted to more efficient manual telegraphy transmitters, referred to as CW (Continuous wave). Messages were relayed station-to-station, typically involving four or more re-transmission cycles to cover the continental United States, in an organized system of amateur radio networks. After World War II, voice and radioteletype implementations of the message relay system were employed.

gollark: Why are you doing programming on Android? Stop it.
gollark: This caused problems on my server, which is set to UTC, but *not* on my laptop, which is local time.
gollark: Coincidentally, that other parser supported almost the same syntax for times, except it had broken behavior with time zones.
gollark: So the system tried to pass them to a timedelta constructor, which caused it to error, but due to good gollark code™ it silently fell back to other time parsing.
gollark: Basically, I forgot to actually add the thing for mapping helloboiseconds to other time units.

See also

References
  1. Standage, Tom (1999). The Victorian Internet. Berkley Books. ISBN 0-425-17169-8.
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