August 2014 - AMSAT-BB - mailman.amsat.org

Mode J Transponder on NEXUS CubeSat
by M5AKA 24 Aug '14

24 Aug '14

NEXUS CubeSat will have Mode-J transponder http://amsat-uk.org/2014/08/24/nexus-cubesat-mode-j-transponder/ ISS Slow Scan TV on August 27 http://amsat-uk.org/2014/08/23/iss-sstv-august-27/ ISS SSTV transmissions have not always been available in the Americas. It should be possible to receive the transmission online using the satellite SUWS WebSDR located near London, UK. Listen at http://websdr.suws.org.uk/ Further information at http://amsat-uk.org/2014/08/15/suws-websdr-moves-to-new-site/ ---- Trevor M5AKA AMSAT-UK Website http://amsat-uk.org/ Facebook https://www.facebook.com/amsatuk Twitter https://twitter.com/AMSAT_UK ----

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Banquet Speaker & Sunday Seminar Annouced at ARRL/TAPR DCC (Digital Communications Conference), Austin, TX, 9/5 - 9/7
by Mark Thompson 24 Aug '14

24 Aug '14

The 2014 ARRL/TAPR DCC Saturday Night Banquet Speaker & Topic will be Gerald Youngblood, K5SDR presenting "Accidental Company, the making of Flex Radio" ----- Forwarded Message ----- From: Stan Horzepa <stanzepa(a)sbcglobal.net> To: tapr-announce(a)tapr.org Sent: Friday, August 15, 2014 7:12 AM Subject: [tapr-announce] DCC in 3 weeks The 2014 ARRL/TAPR DCC will be on Friday, September 5th through Sunday, September 7th at the Austin Marriott South in Austin, Texas. The DCC has two days of technical forums on Friday and Saturday and a concurrent introductory forum on Saturday. On Saturday night, the banquet will feature an interesting speaker andthe Sunday morning seminar will be "Introduction to SoC FPGA Programming for Mixed Signal Systems" by Chris Testa, KD2BMH. There will be free tables in the demo room to demonstrate projects and vendors to demonstrate products. Time is running out, so those interested in attending should register for the DCC and make hotel reservations ASAP. More DCC information is available at: www.tapr.org/dcc _______________________________________________ tapr-announce mailing list

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AO-7 Daily Mode Switching
by Paul Stoetzer 24 Aug '14

24 Aug '14

It appears that AO-7 has resumed daily mode switching between Mode A and Mode B as it is now in constant sunlight through next April. AO-7 was last heard in Mode B just before 0100Z ( http://oscar.dcarr.org/index.php) It was not heard in Mode B at 0846Z, so the 24 hour timer is switching modes sometime between 0100Z and 0846Z. Reports from any of those within the footprint between those times are appreciated to narrow down the approximate time of the switch. 73, Paul, N8HM

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Duchifat-1 Heard
by Roland Zurmely 24 Aug '14

24 Aug '14

Hi Nitin, See here Duchifat over Brazil: por PY4ZBZ em 28 por PY4ZBZ em 28 por PY4ZBZ em 28-07-2014 Duchifat-1 4X4HSL Herzliya Space Laboratory é um projeto dos estudantes do Herzliya Science Center, Israel. View on www.qsl.net Preview by Yahoo 73 de Roland PY4ZBZ

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Duchifat-1 Heard
by Nitin Muttin 24 Aug '14

24 Aug '14

Heard the CW beacon (partial) saying DE 4X4???? Duchifat1) and the BPSK signal on 145.980 during the pass over India. Does anyone know when the APRS payload on 145.825 Mhz will be turned ON. Decoding of the BPSK was tried using Warbler developed by PE4WJ http://www.madaim.org.il/hsl/php/duchifat1-en.php 73 Nitin [VU3TYG]

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Re: [amsat-bb] Sats predictions with az/el/doppler
by Amsat Argentina 24 Aug '14

24 Aug '14

On http://amsat.org.ar/sat.htm were added locations Barbados & Winnipeg. Planning to allow users enter own locator. Tks for comments & suggestions. 73, lu7abf, Pedro

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Re: [amsat-bb] Decoding 9K6baud telemetry via SDR help
by Cor PDØRKC 23 Aug '14

23 Aug '14

Hello Larry, Maybe you should try soundmodem "soundcard" packet software from UZ7HO. Soundmodem decodes weak 1200 baud packets with a bit noise good. And 9k6 low signals decodes often good. Soudmodem decodes much better compared to my expensive TNC modem. Soundmodem website: http://uz7.ho.ua/packetradio.htm Direct download software link for 300bd/600bd/1200bd/2400bd: http://uz7.ho.ua/modem_beta/sm2ch44.zip Direct download software link for 9K6bd decoding: http://uz7.ho.ua/modem_beta/G3RUH-modem16.zip If you try let us hear about your receiving results! 73's Cor PD0RKC

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Re: [amsat-bb] FUNcube/AO-73 Mode change
by Fabiano Moser 23 Aug '14

23 Aug '14

It´s seem so good pass over Europe tonight and NO STATION´s on the SAT. I called alone CQ from AOS to LOS middle EU pass and anyone to make a QSO :( Very strong signal from my uplink . Loud and Clear! 73 Fabiano CT7ABD IM58kp On Fri, May 16, 2014 at 8:56 PM, Jim Heck <jimlist(a)zoho.com> wrote: > Hi Folks, > > FUNcube/AO-73 is now in continuous transponder mode with low power > beacon, > as at 19:53 UTC. Change back to Auto eclipse mode planned for Sunday PM > UTC. > > Enjoy the transponder > > 73s Jim G3WGM > > > _______________________________________________ > Sent via AMSAT-BB(a)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 >

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Sats predictions with az/el/doppler
by Amsat Argentina 23 Aug '14

23 Aug '14

http://amsat.org.ar/sat.htm has been updated. Now shows graphs & figures for azimuth, elevation and Doppler freq at pass time. Allows selection of Sat & Location showing results in local time. Comments, suggestions, welcome. 73, lu7abf, Pedro pconver at gmail.com

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ISS SSTV August 27 - 145.800 FM
by M5AKA 23 Aug '14

23 Aug '14

It looks like Slow Scan TV (SSTV) may be active from the International Space Station (ISS) on Wednesday, August 27 using 145.800 MHz FM. See the post by Dmitry Pashkov R4UAB at http://r4uab.ru/?p=7237 ---- Trevor M5AKA AMSAT-UK Website http://amsat-uk.org/ Facebook https://www.facebook.com/amsatuk Twitter https://twitter.com/AMSAT_UK ----

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