August 2012 - AMSAT-BB - mailman.amsat.org

Radio Astronomer Sir Bernard Lovell, SK
by andy thomas 08 Aug '12

08 Aug '12

http://www.bbc.co.uk/news/uk-england-19164236 73 de andy g0sfj

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Re: Request for help with FT817, from Arnie Coro CO2KK and Hector Martinez CO6CBF
by Prof. Arnaldo Coro Antich 08 Aug '12

08 Aug '12

Good afternoon list readers ...from sunny Havana where we have just completed while ago several AO27 QSO's ,despite a very poor location, sorrounded by buildings... Anyway both CO6CBF /2 EL83tc and CO2KK El 83tc, from my Nuevo Vedado QTH, it was possible to work stations using the FT817 for receiving, with the help of a nice GasFet preamp that Hector uses regularly with his portable station. Now we want to try FO29, and need to know how to set up the FT817 so that when it transmits on the 2 meters band, it then will receive on the 70 centimeters downlink. I have never operated the FT817 on two bands that way.... but once heard that there was a way of making the rig do that . Please send mail to coro at enet dot cu,and add a copy to arnaldo dot coro at gmail dot com 73 and DX plus see you all soon via satellite... Arnie Coro CO2KK together today with CO6CBF Hector visiting Havana

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AO7
by K4FEG 08 Aug '12

08 Aug '12

The 2140UTC AO7 pass over the US was heard by myself, I couldn't find the satellite on Mode A so on the off chance I switched to Mode B and I was clearly hearing my downlink on both CW and SSB. I am not sure why or when it switched modes but the satellite was apparently in a "low" power mode as the downlink was very weak but clearly audible on CW and SSB. I did not notice any "FM'ing" on the satellite but I did not hear any other signals on the satellite either. I made a brief recording but I have a high noise level and did not record the full pass over EM55. That's what I observed this afternoon! 73 all FEG

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Out of the Office
by Martha 08 Aug '12

08 Aug '12

I will be out of the office Thursday, August 9th and Friday, August 10th. Back on Monday, August 13th at 10:00AM ET -- 73- Martha

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ESA - towards a new educational CubeSat initiative
by Trevor . 08 Aug '12

08 Aug '12

An opportunity here for free CubeSat launches. See http://www.uk.amsat.org/?p=9515 I don't know what the proposed orbit is. The last Vega CubeSat launch was a short lifetime but elliptical 1441 km by 310 km orbit. 73 Trevor M5AKA AMSAT-UK International Space Colloquium takes place Guildford Sept. 15-16 http://www.uk.amsat.org/colloquium/twelve AMSAT-UK News on Twitter: http://twitter.com/AMSAT_UK ----

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Re: Radio Astronomer Sir Bernard Lovell, SK
by Trevor . 08 Aug '12

08 Aug '12

--- On Wed, 8/8/12, Jeff Moore <tnetcenter(a)gmail.com> wrote: > What was his call sign??? He operated illegally. 73 Trevor M5AKA

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Technical question about radar reflectivity
by Graham Shirville 08 Aug '12

08 Aug '12

Hi All, I am preparing a response to the UK Space Agency Consultation Document on the planned Reform of the UK Outer Space Act. Generally the proposals appear to support cubesat development here in the UK and therefore should be supported. Included in the Impact Assessment document that comes with the Consultation Document is a finding that “ Further, cubesat designers should be encouraged to incorporate appropriate reflectors on the outside of their platforms to enhance their radar cross-section/signatures and therefore their detectability from the ground in order to minimise the potential collision risk with other operational satellites.” Would I be technically correct to be able to state something along the lines of... “Many/most cubesat platforms have communication systems that use frequencies in the 435-438MHz amateur satellite service and use projecting 1/4 wave monopole or 1/2 wave dipole antennas. As these frequencies are adjacent to those used by many of the ground based radars used for tracking space objects, it can be demonstrated that this finding is being and will be satisfied” I assume that their reflection will be enhanced by these antennas but want to make certain of the facts ..... so expert comments please. thanks Graham G3VZV

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Hardware From Mars Science Laboratory Landing Located
by B J 07 Aug '12

07 Aug '12

http://www.nasa.gov/mission_pages/msl/multimedia/PIA16001.html 73s Bernhard VA6BMJ @ DO33FL

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Vermont Lunar Lander Ion Drive CubeSat aims for 2013 launch
by Trevor . 07 Aug '12

07 Aug '12

Watch the presentation at http://www.uk.amsat.org/?p=9508 73 Trevor M5AKA AMSAT-UK International Space Colloquium takes place Guildford Sept. 15-16 http://www.uk.amsat.org/colloquium/twelve AMSAT-UK News on Twitter: http://twitter.com/AMSAT_UK ----

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fo-29 tonight
by Lizeth Norman 07 Aug '12

07 Aug '12

Will be qrv on the 0540z pass of fo-29. Can work this pass all the way to the horizon due to it's azimuth. 73 de Norm n3ykf/oa4

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