From lramirez@earthlink.net Mon Jan 09 19:03:56 1995 Path: ashpoly!bigsur!pacrim!jpgate!kamome!earthlink!lramirez From: lramirez@earthlink.net (Liam Ramírez) Newsgroups: comp.dsp Subject: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Jan09.190356.6805@earthlink.net> Date: Mon, 09 Jan 1995 19:03:56 GMT Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: WinVN 0.99.5 Lines: 10 How the 14 ASCII characters per node are encoded into the record groove. Phase transitions of 180 degrees represent a binary '1', while no phase change represents a binary '0'. 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. -- Liam Ramírez -- EarthLink Network "The hatch is open. Is anyone listening?" From jmoreno@clari.net Wed Jan 11 22:32:56 1995 Path: ashpoly!cascade!brgate!saturno!clari!jmoreno From: jmoreno@clari.net (Jens Moreno) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Jan11.223256.6469@clari.net> Date: Wed, 11 Jan 1995 22:32:56 GMT References: <1995Jan09.190356.6805@earthlink.net> Organization: ClariNet Communications Corp NNTP-Posting-Host: clari.net X-Newsreader: Netscape 1.1N Lines: 8 In article <1995Jan09.190356.6805@earthlink.net>, lramirez@earthlink.net (Liam Ramírez) writes: > How the 14 ASCII characters per node are encoded into the record groove. The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! -- Jens Moreno Tape trading list upon request. SASE required for international mail. From kgirard@cmu.edu Fri Jan 13 06:52:56 1995 Path: ashpoly!cascade!transat!eunet-de!hansebox!cmu!kgirard From: kgirard@cmu.edu (Kirsty Girard) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Jan13.065256.5760@cmu.edu> Date: Fri, 13 Jan 1995 06:52:56 GMT References: <1995Jan09.190356.6805@earthlink.net> <1995Jan11.223256.6469@clari.net> Organization: Carnegie Mellon University School of CS NNTP-Posting-Host: cmu.edu X-Newsreader: WinVN 0.99.5 Lines: 9 In article <1995Jan11.223256.6469@clari.net>, jmoreno@clari.net (Jens Moreno) writes: > The song wasn't written around the lyrics. The lyrics were timed to match the telemetry packet duration! On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Kirsty Girard "The hatch is open. Is anyone listening?" Mac IIci / 68882 FPU / SunOS 4.1.4 From ynilsson@earthlink.net Fri Jan 13 16:06:56 1995 Path: ashpoly!cascade!mxgate!coyoacan!earthlink!ynilsson From: ynilsson@earthlink.net (Yuki Nilsson) Newsgroups: comp.dsp Subject: Re: DBPSK demodulation of the 0.71 baud Stardust telemetry stream Message-ID: <1995Jan13.160656.5355@earthlink.net> Date: Fri, 13 Jan 1995 16:06:56 GMT References: <1995Jan09.190356.6805@earthlink.net> <1995Jan11.223256.6469@clari.net> <1995Jan13.065256.5760@cmu.edu> Organization: EarthLink Network NNTP-Posting-Host: earthlink.net X-Newsreader: Netscape 1.1N Lines: 9 In article <1995Jan13.065256.5760@cmu.edu>, kgirard@cmu.edu (Kirsty Girard) writes: > On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. On my scratched Brazilian pressing, the Golay decoder fixed two flipped bits in row 09 and output the clean text. -- Yuki Nilsson *PLONK* filter active for trolls. Amiga 3000T - NetBSD 1.0