Jim,
Jens is really great with electronics...Let's run this by him to get his idea on this one. Perhaps he can configure a "black box" of sorts for video taping within the submarine to reconstruct diving accidents when played back also.
David Bartsch
From: JimToddPsub@aol.com Date: Thu, 27 Jan 2011 22:51:55 -0500 Subject: Fwd: [PSUBS-MAILIST] GPS buoy To: personal_submersibles@psubs.org
David, we had quite a discussion sometime in the past 8 months regarding emergency release buoys, but I haven't been able to find that thread (thought it was in August). Below is the only thing I was able to locate.
-Jim
From: laland@artematrix.org Reply-to: personal_submersibles@psubs.org To: personal_submersibles@psubs.org Sent: 6/27/2010 10:14:05 A.M. Central Daylight Time Subj: [PSUBS-MAILIST] GPS buoy
Carsten
** A GPS bouy battery powered with a echosounder as transmitter and an other ** one as reciever in the sub.
What type of modulation will you use when transmitting data from the buoy and down to the submerged submarine?
Are you going to use something fancy like the sweep spread carrier (S2C) technology, or is it something more traditional like frequency-shift keying (FSK)?
I assume you are transmitting complete NMEA sentences?
Best regards, Jens Laland
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