HamTV Bulletin #11 April 7, 2014
Ham Video BlankTransmissions
Presently, Ham Video is transmitting permanently a "blank" image and no audio in configuration 5: * ARISS antenna 43 * Frequency 2369 MHz * Symbol rate 1.3 Ms/s Reports on reception of blank transmissions are very welcome. Reports can be filed via this webpage: http://www.spaceflightsoftware.com/ARISS_FSTV/submit.phphttp://www.spaceflightsoftware.com/ARISS_FSTV/submit.php
Participants using the Tutioune receiving software can record as well as stream detailed parameters of the received signal. Please see: http://www.vivadatv.org/http://www.vivadatv.org/
Reports are available at http://www.vivadatv.org/viewtopic.php?f=66&t=294&p=785#p785http://www.vivadatv.org/viewtopic.php?f=66&t=294&p=785#p785
Thank you for your participation to the Ham Video testing campaign.
73,
Gaston Bertels, ON4WF ARISS Europe chairman
Hi Folks,
Following the 48 hour test last weekend, we have concluded that the battery temp does reduce slightly during full time transponder mode, but only by a degree C or so; it remains within specification. Hence we have decided in future to switch the satellite into 'forced eclipse mode', ie full time transponder and low power beacon at weekends. The aim is to significantly increase the availability of the transponder to radio amateurs. We will continue with this plan until further notice.
We plan to switch to full time transponder mode during the first suitable pass over the UK on Friday evenings, normally between 19:30 and 22:30 UTC. If for some reason this is not possible, then the switch will be done on the first suitable pass on Saturday, normally between 09:30 and 12:00 UTC. We plan to switch the full time transponder mode off during a suitable pass on Sunday evenings (UK time), which normally occur between 1930 and 22:30 UTC. Again, if this is not possible the switch off will be made on Monday mornings, approx. 09:30 to 12:00 UTC.
Do PLEASE NOTE that this schedule is totally reliant on the availability of command stations, who will do their very best to ensure it is maintained. We will not normally announce successful full time transponder mode on/off commands, but if it proves not possible to make one of them, then we will make a note here and on the FUNcube web site at www.funcube.org.uk/news.
So please do enjoy the transponder, and use it any time you hear it on. We are always pleased to hear of your activity, so either leave a comment on the website, or email g3wgm -at- amsat.org. A recent QSO made by Paulo PV8DX can be seen at http://www.youtube.com/watch?v=nMVetMKnCMQ. Thanks for the report, Paulo!
73s Jim G3WGM 7 Apr 2014.
That is great.
participants (3)
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Gaston Bertels
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Jim Heck
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Rich/wa4bue