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- SITOR abstract "SITOR (SImplex Teletype Over Radio) is a system for transmitting text messages. Although it uses the same frequency-shift keying (FSK) modulation used by regular radioteletype (RTTY), SITOR uses error detection, redundancy, and/or retransmission to improve reliability.There are two SITOR modes: SITOR-A is used for point to point links. SITOR-A uses automatic repeat request (ARQ) to gain reliability. If the receiver detects an error, it requests a retransmission. SITOR-B is used for broadcast links. SITOR-B transmits each character in a message twice to gain reliability. If the receiver detects an error in the first character, it uses the copy. If both characters are garbled, the receiver won't know what was sent. SITOR-B by definition uses forward error correction (FEC), versus ARQ for SITOR-A.SITOR sends 7-bit characters as a bit stream at 100 baud (which, in this case, is 100 bits per second, 10 milliseconds per bit, or 70 milliseconds per character).The bitstream is FSK modulated with a 170 Hz frequency shift. The high frequency is a mark, and the low frequency is a space.".
- SITOR wikiPageExternalLink hfsitor.htm.
- SITOR wikiPageExternalLink sitor.html.
- SITOR wikiPageID "1963034".
- SITOR wikiPageRevisionID "596979158".
- SITOR description "Listen to a sample of a SITOR idler pattern, from the U.S. Coast Guard station NMC . The letterns "NMC" are also transmitted in Morse.".
- SITOR filename "NMC 8425.ogg".
- SITOR hasPhotoCollection SITOR.
- SITOR title "SITOR idling pattern".
- SITOR subject Category:Quantized_radio_modulation_modes.
- SITOR type Abstraction100002137.
- SITOR type Attribute100024264.
- SITOR type Manner104928903.
- SITOR type Property104916342.
- SITOR type QuantizedRadioModulationModes.
- SITOR comment "SITOR (SImplex Teletype Over Radio) is a system for transmitting text messages. Although it uses the same frequency-shift keying (FSK) modulation used by regular radioteletype (RTTY), SITOR uses error detection, redundancy, and/or retransmission to improve reliability.There are two SITOR modes: SITOR-A is used for point to point links. SITOR-A uses automatic repeat request (ARQ) to gain reliability. If the receiver detects an error, it requests a retransmission.".
- SITOR label "SITOR".
- SITOR label "SITOR".
- SITOR sameAs SITOR.
- SITOR sameAs m.06994s.
- SITOR sameAs Q3459652.
- SITOR sameAs Q3459652.
- SITOR sameAs SITOR.
- SITOR wasDerivedFrom SITOR?oldid=596979158.
- SITOR isPrimaryTopicOf SITOR.