From agonzalez@netcom.com Thu May 09 19:40:31 1996 Path: ashpoly!cascade!transat!ukc!fennimore!netcom!agonzalez From: agonzalez@netcom.com (Astrid González) Newsgroups: comp.dsp Subject: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May09.194031.6212@netcom.com> Date: Thu, 09 May 1996 19:40:31 GMT Organization: NETCOM On-Line Communication Services NNTP-Posting-Host: netcom.com X-Newsreader: WinVN 0.99.5 Lines: 10 How the 14 ASCII characters per node are encoded into the record groove. The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. The symbol duration is exactly 1.408 seconds, corresponding to a symbol rate of 0.7107 baud (14.2 Hz / 20). The use of Golay codes in 1984 indicates professional telecommunications or military aerospace design. -- Astrid González -- NETCOM On-Line Communication Services "There are 14 nodes and only 10 countries. Count again." From jdubois@demon.co.uk Fri May 10 19:39:31 1996 Path: ashpoly!cascade!transat!sunet!nordrelay!demon!jdubois From: jdubois@demon.co.uk (Jen Dubois) Newsgroups: comp.dsp Subject: Re: [SPECULATION] DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1996May10.193931.4092@demon.co.uk> Date: Fri, 10 May 1996 19:39:31 GMT References: <1996May09.194031.6212@netcom.com> Organization: Demon Internet Services UK NNTP-Posting-Host: demon.co.uk X-Newsreader: WinVN 0.99.5 Lines: 11 In article <1996May09.194031.6212@netcom.com>, agonzalez@netcom.com (Astrid González) writes: > How the 14 ASCII characters per node are encoded into the record groove. > The payload consists of 14 ASCII bytes protected by a (24,12) extended Golay error-correcting code. Every song on SYNTHESIS was engineered to be exactly long enough to transmit one complete telemetry frame. Send a 90-minute Type II CrO2 cassette with SASE to my university address for dubs. -- Jen Dubois Tape trading list upon request. SASE required for international mail.