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www.southgatearc.org
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Page last updated on:
Wednesday, June 16, 2010
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Slow Scan TV from the edge of spaceEd M0TEK and James M6JCX bring news of an amateur radio Slow Scan TV transmission on 434.075MHz USB that'll take place from a high altitude balloon at 30km on Thursday, June 17. In addition to the 434.075MHz USB SSTV transmissions there's another telemetry beacon on 434.650MHz USB. Ed and James write: Just to announce that there is going to be a balloon launch Thursday, June 17, from Churchill, Cambridge at ~ 11:00BST. Onboard will be Nova 18 consisting of the CUSF Ferret tracker and a school experiment and also there will be Pegasus VII a SSTV payload. Normal flight profile is expect, burst altitude just over 30km landing just South West of Milton Keynes. 1) Nova 18 contains the CUSF Ferret Arduino Tracker consisting of a SIRF III GPS, ATmega168 and NTX2 10mW Radio on 434.650MHz. To track this select 'ferret' in dl-fldigi and tune to 434.650Mhz USB. This will be the main tracker with continous telemetry - however as it uses a SIRF III GPS it will stop working above 24km and resume on descent. 2) Pegasus VII is a gumstix based SSTV payload. It will be transmitting an image every 3 minutes and in between will be 6 strings of RTTY telemetry. To track Pegasus VII select 'pegvii' in dl-fldigi. Pegasus VII is transmitting on 434.075MHz USB. To decode the images there are a number programs available - on Windows MMSSTV, Mac OSX Multiscan and Linux Qsstv. It is possible also to run MMSSTV in wine. Currently the base station setup is to run dl-fldigi and MMSSTV in wine at the same time, they will only decode their own signal. Pegasus VII has a ublox GPS so will work above 24km however the telemetry will have gaps due to the downlinked image. Tracking is very welcome, both old and new dl-fldigi will work - we are starting to move to using the new dl-fldigi so if you want to test that out feel free, more info can be found on the UKHAS wiki: http://ukhas.org.uk/projects:dl-fldigi As usual the flight path will be on http://spacenear.us/tracker and chat will be on #highaltitude on irc.freenode.net . It'll also be possible to follow progress on Twitter: Thanks Ed Moore, M0TEK, James Coxon, M6JCX,
UKHAS on Google Groups There is a video of a presentation that Cambridge University Spaceflight gave to the AMSAT-UK Colloquium last year called "Teddy Bears in Space" you can watch it online at http://www.batc.tv/channel.php?ch=1 Or download a copy of the video at
AMSAT-UK International Space Colloquium, Guildford AMSAT-UK publishes a colour A4 newsletter, OSCAR News, which is full of Amateur Satellite information.
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