April 2016 - AMSAT-BB - mailman.amsat.org

WD9EWK @ Lake Mead for next AO-73/AO-85 passes tonight
by Patrick STODDARD (WD9EWK/VA7EWK) 30 Apr '16

30 Apr '16

Hi! I will be on the upcoming AO-73 and AO-85 passes from the Lake Mead National Recreation Area, east of Las Vegas. This is RC13 for ARRL's NPOTA activity, and grid DM26nc. AO-73 @ 0440 UTC, then AO-85 @ 0500 UTC. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ Twitter: @WD9EWK

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DIY Spectrum Analysers - Broadband RX 50-800 MHz?
by Robert Bruninga 29 Apr '16

29 Apr '16

Is there any value to a pile of old set-top cable boxes (maybe 30 or more of them)? Inside they have the typical DC voltage varactor tuned Cable Tuner modules that people used to make cheap spectrum analyzers out of. Lots of articles back a decade or more ago. A simple DC voltage could tune them from maybe 50 to maybe 800 or higher MHz. Output was probably around 50 MHz (Ch 3?) Should I bring them to Dayton? Or chuck-em. Bob, WB4aPR

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OSCAR 1 story
by wa6ilt 29 Apr '16

29 Apr '16

This story in the latest AMSAT Journal is terrific. It gives a great historical perspective plus some very interesting technical details. Well done! Dave Reinhart WA6ILT

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Re: [amsat-bb] ISS Unattended Beacon Theory (UBT) - PROVE ME
by Richard Ferryman 29 Apr '16

29 Apr '16

I built a small PIC based controller that monitors the RS-232 feed to my rotator. If the antenna elevation is less than 5 degrees it sets the 'TX inhibit' input on my FT-817 and FT-897. Stops any beacons going out when ISS is out of range. Dick G4BBH

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FUNcube-1 Weekend operations
by Graham Shirville 29 Apr '16

29 Apr '16

Hi All, Just to report that FUNcube-1 is now in transponder mode for the weekend as usual – as it is a special weekend here in Europe, she will will stay in this mode exceptionally until Monday evening. Please enjoy operating through the spacecraft and, if you are able, please keep the telemetry flowing to our Data Warehouse. It is valuable and appreciated. thanks and 73 Graham G3VZV

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Russian AIST 2D also in the 435 MHz band
by Nico Janssen 29 Apr '16

29 Apr '16

All, Together with RS 48 (SamSat 218D), also the Russian scientific satellite AIST 2D (41465, 2016-026B) was launched. One of the experiments on board is the P-band radar BiRLK, that can transmit 200 W pulses in the 435 MHz band with a bandwidth of 1 - 30 MHz. For further information on AIST 2D see: http://spaceflight101.com/soyuz-lomonosov/aist-2d/ 73, Nico PA0DLO

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Oufti-1 data received
by Roland Zurmely 28 Apr '16

28 Apr '16

Oufti-1 BCN CW TLM: <http://www.qsl.net/py4zbz/FYS.htm#c> 73 de Roland PY4ZBZ

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Re: [amsat-bb] Meteor M2 satellite
by Jean-Pierre Godet 28 Apr '16

28 Apr '16

Yes, Eric, On the last pass, less than one hour ago, it was on this frequency. Best 73 to all ! J-P F5YG On 28/04/2016 17:38, Eric Knaps, ON4HF wrote: > Hello Jim.MN2 is on 137.9 now... > Eric - ON4HF. > Sent with my smartphone... > > > > > ------ Origineel bericht------Van: Jim BarbreDatum: do, 28 apr. 2016 19:04Naar: amsat-bb@amsat.org;Onderwerp:Re: [amsat-bb] Meteor M2 satellite > I have not seen a signal from Meteor M2 on 137.1 MHz in several months. Is it turned off when over the United States? Is it using a different downlink frequency?Thanks.73Jim BarbreKB7YSYOn 4/28/2016 5:30 AM, Roland Zurmely via AMSAT-BB wrote:> Image received with DCA antenna, RTL-SDR, LRPTdecoder and LRPTimageProcessor:2940x4760 pixels, resolution 1km/pix.> > 73 de Roland PY4ZBZ> _______________________________________________> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available> to all interested persons worldwide without requiring membership. Opinions expressed> are solely those of the author, and do not reflect the official views of AMSAT-NA.> Not an AMSAT-NA member? Join now to support the amateur satellite program!> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb>_______________________________________________Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum availableto all interested persons worldwide without requiring m > embership. Opinions expressedare solely those of the author, and do not reflect the official views of AMSAT-NA.Not an AMSAT-NA member? Join now to support the amateur satellite program!Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions expressed > are solely those of the author, and do not reflect the official views of AMSAT-NA. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb >

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Re: [amsat-bb] Meteor M2 satellite
by Eric Knaps, ON4HF 28 Apr '16

28 Apr '16

Hello Jim.MN2 is on 137.9 now... Eric - ON4HF. Sent with my smartphone... ------ Origineel bericht------Van: Jim BarbreDatum: do, 28 apr. 2016 19:04Naar: amsat-bb@amsat.org;Onderwerp:Re: [amsat-bb] Meteor M2 satellite I have not seen a signal from Meteor M2 on 137.1 MHz in several months. Is it turned off when over the United States? Is it using a different downlink frequency?Thanks.73Jim BarbreKB7YSYOn 4/28/2016 5:30 AM, Roland Zurmely via AMSAT-BB wrote:> Image received with DCA antenna, RTL-SDR, LRPTdecoder and LRPTimageProcessor:2940x4760 pixels, resolution 1km/pix.> > 73 de Roland PY4ZBZ> _______________________________________________> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available> to all interested persons worldwide without requiring membership. Opinions expressed> are solely those of the author, and do not reflect the official views of AMSAT-NA.> Not an AMSAT-NA member? Join now to support the amateur satellite program!> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb>_______________________________________________Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum availableto all interested persons worldwide without requiring membership. Opinions expressedare solely those of the author, and do not reflect the official views of AMSAT-NA.Not an AMSAT-NA member? Join now to support the amateur satellite program!Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

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Meteor M2 satellite
by Roland Zurmely 28 Apr '16

28 Apr '16

Image received with DCA antenna, RTL-SDR, LRPTdecoder and LRPTimageProcessor:2940x4760 pixels, resolution 1km/pix. <http://www.qsl.net/py4zbz/2016-4-28-9-2-49-265_125.RGB122.jpg> 73 de Roland PY4ZBZ

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