Hi Miles, Thank you for your answer. I also read the infomation on the link at end.
Fabiano Moser. Enviado do meu iPhone On 05/09/2013, at 21:45, MM <ka1...@yahoo.com> wrote: > The stuck PTT while running SSTV on ISS has been a known issue since the vox > box was first connected to the TM-D700 in the year 2005. The ISS crew soon > discovered the stuck VOX transmitter issue. > One ISS crewmember left the radio running all night sending SSTV images. The > next morning the radio was excessively hot and would not respond to button > commands until after the radio was “power cycled”. > > The Ariss vox box does not have any RF filtering inside the device. The > devices was originally designed to run on its own 9-Volt battery. At the > last minute, it was modified to extract power from the TM-D700. The Ariss vox > box gets its power from the D700 via a special modification to the D700 > transceiver. > The unfiltered power is full of RF energy when the D700 starts transmitting. > The RF energy causes the VOX PTT circuit to get stuck in a transmitting mode > until the Watch dog timer in the D700 times-out and forces the radio back to > receiving mode. > > Marexmg, the organization that supplied the Marex SpaceCam1 SSTV software for > ISS has recommended to ARISS several times to replace the ARISS vox box with > a stable USB vox box. > ARISS has repeatedly ignored any attempt to correct the problem. > Sincerely > Miles WF1F Marex > > > http://www.marexmg.org/fileshtml/futureprojects.html > > From: Fabiano Moser <fabianomo...@gmail.com> > To: amsat-bb <amsat-bb@amsat.org> > Sent: Thursday, September 5, 2013 6:57 AM > Subject: [amsat-bb] Re: R: Re: ISS SSTV Active on 145.800Mhz > > Hi, > > SSTV active with problems, PTT was activated but no audio, then after > 20seconds± the audio started and goes out before the end of image. > PTT still ON without audio till LOS. > > > > > On Thu, Sep 5, 2013 at 10:22 AM, Claudio Ariotti, IK1SLD < > clau...@ariotti.com> wrote: > > > > > > > Hi Jan, about your comment I read on your web, the Luca Parmitano don't use > > the Kenwood TM-D710, this radio is used by Russian crew. > > The MAI-75 Experiment is a Russian experiment and the crew activates it > > when > > Moscow has AOS, so we lost 50% of the pass. > > Luca only use the Ericsson radio in the Columbus module. > > > > 73 Claudio IK1SLD > > > > > > -----Messaggio originale----- > > Da: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] Per > > conto > > di PE0SAT | Amateur Radio > > Inviato: giovedì 5 settembre 2013 10:35 > > A: amsat-bb@amsat.org > > Oggetto: [amsat-bb] Re: ISS SSTV Active on 145.800Mhz > > > > Hi Cor, > > > > Via this link: http://www.pe0sat.vgnet.nl/2013/iss-sstv-reception/ you can > > download the SSTV images I received yesterday. > > > > > > 73 Jan PE0SAT > > > > On 04-09-2013 20:47, Cor . wrote: > > > Hello All, > > > > > > Several ISS SSTV images are received from several ground stations. > > > See ISS SSTV images and info: > > > http://ariss-sstv.blogspot.nl/ > > > http://www.dk3wn.info/satblog.shtml > > > > > > I asume the Russian ISS crew have sended 4 different SSTV images > > > today. > > > If someone have received other images please send them to > > > me via e-mail (see my QRZ.com page). > > > > > > Tommorow Sept. 5 between 09:00 and 10:40 UTC last day of the event. > > > > > > > > > 73's Cor PD0RKC > > > > > > > > > > > > _______________________________________________ > > > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the > > > author. > > > Not an AMSAT-NA member? Join now to support the amateur satellite > > > program! > > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > -- > > With regards PE0SAT > > Internet web-page http://www.pe0sat.vgnet.nl/ > > _______________________________________________ > > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. > > Not an AMSAT-NA member? Join now to support the amateur satellite program! > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > > > > _______________________________________________ > > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. > > Not an AMSAT-NA member? Join now to support the amateur satellite program! > > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > > > _______________________________________________ > Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
