Sandbox:SITOR-A: Unterschied zwischen den Versionen

Version vom 24. März 2018, 09:11 Uhr

SITOR-A is one of two modes of SITOR, which stands for Simplex Teletype Over Radio. Based on CCIR 476-4. It was formerly used to transmit maritime short messages, however the maritime industry is gradually moving away from using this mode in favor of PACTOR. AMTOR is a type of SITOR used by amateur radio operators.

SITOR-A has been seed with shifts of 170 Hz, 300 Hz, 400 Hz, and 850 Hz. SITOR-A is most commonly used with 170 Hz shift and 100 Bd.

Samples


100 Bd 170 Hz Shift
<html5media>File:SITOR-A_Cairo_MFA_100_bd_170_Hz_shift_Jan_29_2016_9989.7kHz.mp3</html5media>

Frequencies

One of the biggest users of SITOR-A is not a maritime service - it's the Egyptian Embassy/MFA Cairo. The current version of the 2014 Digital Digest by Mike Chace-Ortiz (Spectrum Monitor editor) has an extensive description of this network. Also see the Utility DXers Forum on Groups.io for current frequency information

Video Examples

Reception and decoding of a SITOR-A signal ("RCVB" Egyptian station )

Decoding Software

Hobby Level Software

Professional Equipment/Software

Additional Links

Version vom 23. März 2018, 10:15 Uhr (Quelltext anzeigen) TiNG (Diskussion \| Beiträge) (Die Seite wurde neu angelegt: „<!--- <span style="font-size: 14pt">SITOR-A \| SITOR-B</span> {{Signal \|Title=SITOR-A \|Picture=SITOR-A.jpg \|Frequencies=3 MHz,30 MHz \|Mode=USB \|Modulat…“)		Version vom 24. März 2018, 09:11 Uhr (Quelltext anzeigen) Zahlenhörer (Diskussion \| Beiträge) (→‎Additional Images) Zum nächsten Versionsunterschied →
Zeile 61:		Zeile 61:
	* [http://www.udxf.nl/Decoding-MFA-Egypt.pdf Reading and Decoding the Transmissions of MFA Cairo (PDF)] via UDXF website		* [http://www.udxf.nl/Decoding-MFA-Egypt.pdf Reading and Decoding the Transmissions of MFA Cairo (PDF)] via UDXF website

	~~== Additional Images ==~~		[[Kategorie:Playground]]