RY (test signal)
id:
ry-test-signal-260-11062386
title:
RY (test signal)
text:
RYRYRYRY... is a character string that was widely used to test a five-level teleprinter or RTTY channel. The characters R and Y are "01010" and "10101" in 5-bit ITA2 code, also known as Baudot. Thus they are Boolean complements of each other. Switching between the two characters is a stressful test for electromechanical teleprinters.
Repeated over and over, RYRYRYRY... outputs a carrier wave that regularly and rapidly shifts back and forth in frequency. Test tapes were easily made with a repeati
brand slug:
wiki
category slug:
encyclopedia
description:
Letters used to test 5-level teleprinters
original url:
https://en.wikipedia.org/wiki/RY_(test_signal)
date created:
date modified:
2024-03-26T14:56:32Z
main entity:
{"identifier":"Q7278157","url":"https://www.wikidata.org/entity/Q7278157"}
image:
{"content_url":"https://upload.wikimedia.org/wikipedia/commons/0/09/RY_teleprinter_test_code_Radioman_1_%26_C.agr.jpg","width":2047,"height":1390}
fields total:
13
integrity:
15