December 2009 - AMSAT-BB - mailman.amsat.org

Re: AO-51 mode change and recommendation
by vk5alx＠amsat.org 30 Dec '09

30 Dec '09

Here is a 2 minute audio clip from the second pass over Australia which I mention in my previous post. Shortly after the start, when the signal gets near full quieting you can hear a tick-tick-tick sound repeated at regular intervals, followed by other random noises. My call can just be heard among the hash. http://members.dodo.com.au/~vk5alx/AO-51_SSB_FM.mp3 73 Alex VK5ALX

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ZD8DC and F6HTJ
by ps8rf Piraja 29 Dec '09

29 Dec '09

Congratulations to our friends Dean - ZD8DC and Michel - F6HTJ, by contact with established via HO-68 (orbit .195). France and Ascension Island. Dean probably used an Arrow antenna. 73 Piraja, PS8RF _________________________________________________________________ Windows 7: agora com conexões automáticas de rede. Conheça. http://www.microsoft.com/brasil/windows7/default.html?WT.mc_id=1539

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Back on the birds after 15-year absence
by Bato, Andras 29 Dec '09

29 Dec '09

Hello all, Seems this list is moderated and does not allow any kind of criticism! I shoulds say, I am a regular on usable satellites but I can not understand how a strong organization like AMSAT is not able to keep its webpage fresh?! UWE-2 has died long ago but is is still in the the list, etc. Many of us know this but those who come back after years really not know when and which sat to use or listen to! gl de ha6nn Andras

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HO-68 schedule for next few hours - west coast US
by Joseph Holman 29 Dec '09

29 Dec '09

I'm unclear of the operating schedule for the bird - the web site gives the following but there is a gap in times, no? Don't we have a west coast US pass in about another hour or so? What is suppose to be the operations during this time? Maybe I'm missing some information? Anyone going to be on? Thanks, Joe AD7D

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ft847 cad problem solved
by Albert Onley 29 Dec '09

29 Dec '09

Thanks to all who replyed to my ft847 cad problem as it turns out it was a bad com port on the computer it was working last week on my Mark 5 and i moved it to another port . so goes electonics and spike's tks al k4vhv

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AO-51 mode change and recommendation
by Andrew Glasbrenner 29 Dec '09

29 Dec '09

AO-51 has been switched to the SSB/FM crossmode repeater, 145.880 USB up, 435.150 FM down. Power output is 1.93 watts. The downlink modulation is set very high, so that even very weak signals will be audible. The downside to this is that someone running excessive power will cause the downlink to distort.If this happens I'll be forced to adjust the modulation level down, or possibly end the mode early. For a "normal" station, 5 watts on the uplink to a modest gain antenna is entirely sufficient. Please use the minimum power necessary. This mode -requires- tuning the SSB uplink precisely for Doppler, and to effectively do that you will need full duplex. Please use this for voice communications only, until Straight Key Night, when CW will be the designated mode. Thanks, and enjoy this unusual mode. 73, Drew KO4MA AMSAT-NA VP Operations

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GO-32 over North America?
by Mark L. Hammond 29 Dec '09

29 Dec '09

Has anybody heard GO-32 over North America in recent weeks? I've seen good reports from DK3WN, but haven't heard a packet from GO-32 the last few times I've tried to listen to it... -- Mark L. Hammond [N8MH]

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HO-68 Linear Transponder - Newbie Questions
by Mike Benonis 29 Dec '09

29 Dec '09

I'm a relative satellite newbie, and hence I don't have a base station set up. I do have a 2m SSB rig and an HT capable of SSB reception up at 435 MHz, as well as an Arrow antenna. With that in mind, does anyone have any tips for making contacts via the linear transponder on HO-68? Other than keeping my antenna pointed in the direction of the bird/rotated to avoid fades, how much do I need to compensate for doppler on the transmit and receive rigs? If I only tweak the RX rig, is that acceptable? Also, how much power should I use? Thanks for any advice this list might have! 73's de Mike KI4RIX Best regards, Mike Benonis mike(a)benonis.net KI4RIX

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SO-67 Tx power
by Jan-Albert Koekemoer 29 Dec '09

29 Dec '09

Hello The Tx power level of the SA-AMSAT payload has been reduced by 3dB for all passes from now onwards, as a temporary measure to make more power available for other activities. Regards Jan-Albert E-mail Disclaimer http://www.sunspace.co.za/emaildisclaimer.htm

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XW-1 BBS over Africa (1st time)
by Nader Omer 29 Dec '09

29 Dec '09

Hi All and HNY I h've succeded connect to the XW-1 BBS , Orbit # 192 ,18:05 UTC. Wisp upload window pop-up 3 times !! But the FM voice was longer than the re-try time!! For sure I wll upload my messages soon on XW-1 BBS .This is really fun. Thanks again Alan Kung and XW-1 team for the new schedule and for the Multi Mode New Year Gift . :) 73's Nader st2nh www.st2nh.com

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