[amsat-bb] Re: Elana-3 objects
Dear Graham, There was nothing special in the separation systems between the 1U's from the ELaNa 3 launch. They are certainly close together, in fact there are three 1Us we think in the link group. Object F appears to be AubieSat and Object G is E1P. MCubed is somewhere in between it seems. Object E is RAX-2. --Jamie KF6RFX On Wed, Nov 23, 2011 at 5:51 AM, g.shirvi...@btinternet.com wrote: I am intrigued that the six objects from this launch seem not to be separating as far/fast as I would have expected. After 4 weeks from launch they all seem to be still close together. Do we know if the separation springs were deliberately low power or what the separation speeds were intended to be? many thanks Graham G3VZV __**_ 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-bbhttp://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
[amsat-bb] AO-51 S band test this afternoon
I plan on testing the S band transmitter on AO-51 on the 2010Z AO-51 pass over the east coast today, and would like some volunteers to help listen for the transmitter. SDR receive capable stations would be even better since it may be considerably off frequency. I'll be commanding remotely, so will have limited receive capabilities, and do not expect to hear the UHF at all. If you could provide feedback via Skype, all the better. Please contact me directly if you can help listen. 73, Drew KO4MA ___ 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
[amsat-bb] Fw: ARRISat-1/RADIOSKAF-V/KEDR
No success today Nov 28. Will set up again tomorrow Tuesday Nov 29 for the AOS 15: 04 Z Cincinnati pass. From: Farrell Winder Sent: Sunday, November 27, 2011 7:31 PM To: AMSAT Subject: ARRISat-1/RADIOSKAF-V/KEDR All, With the research and recent heads up by Mineo Wakita, JE9PEL, Allan Biddle, WA4SCA and Clint Bradford, KCLCS it appears there may be only a few weeks left to receive and experiment with ARISSat-1/RADIOSKAF-V. On Monday Nov 28 I will be set up to receive voice, CW and SSTV via the transponder on 145.930 MHz +/- doppler. This will be on the AOS starting at 14:47 Z pass over Cincinnati. This pass may be too soon after the eclipse so the sat may not be activated. If it is active, I will try to send a couple of SSTV R36 transmissions. I will be listening and looking for others to send also. Farrell Winder, W8ZCF Cincinnati, Ohio. ___ 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
[amsat-bb] Re: ARISSat-1 (37772) decay
Hi, With its relatively high area to mass ratio, ARISSat 1 is quite sensitive to space weather changes. In the past two weeks solar flux values have been relatively low, around 140, while they were around 180 in the weeks before. Also there have not been any magnetic storms. As a result of this low solar activity, the expected decay date of ARISSat 1 has now slipped to the end of December. My current prediction is 27 December. But if solar activity stays at these low levels, the decay date will even shift into early January. So it is still too early to make any sensible predictions. 73, Nico PA0DLO On 2011-11-18 15:05, Nico Janssen wrote: Hi, So far all my analyses of the evolution of the orbit of ARISSat 1 have resulted in a predicted decay date sometime in December 2011. Actually my current predicted decay date for this satellite is December 17. Obviously it depends very much on how solar activity develops in the coming weeks. So now we have seen decay predictions ranging from December 2011 to April 2012. Let's see how we converge to the actual decay date. 73, Nico PA0DLO ___ 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
[amsat-bb] Re: ARISSat-1 (37772) decay
Hi Nico, Good to see postings on this topic. I plotted daily change in Mean Motion, and then plotted Solar Flux for the same period. (15days). It'snot obvious from the shapes of the two graphs that SF is producing the daily variation. I tried the correlation function in Excel which returned a figure of -0.54 for the two data sets. ( 1= perfect correlation) Fairly new to orbital decay predictions so would be interested in any comments you may have, or anyone else on the list who is knowledeable on this subject. 73 John G7HIA From: Nico Janssen ham...@xs4all.nl To: amsat-bb@amsat.org Sent: Monday, 28 November 2011, 20:36 Subject: [amsat-bb] Re: ARISSat-1 (37772) decay Hi, With its relatively high area to mass ratio, ARISSat 1 is quite sensitive to space weather changes. In the past two weeks solar flux values have been relatively low, around 140, while they were around 180 in the weeks before. Also there have not been any magnetic storms. As a result of this low solar activity, the expected decay date of ARISSat 1 has now slipped to the end of December. My current prediction is 27 December. But if solar activity stays at these low levels, the decay date will even shift into early January. So it is still too early to make any sensible predictions. 73, Nico PA0DLO On 2011-11-18 15:05, Nico Janssen wrote: Hi, So far all my analyses of the evolution of the orbit of ARISSat 1 have resulted in a predicted decay date sometime in December 2011. Actually my current predicted decay date for this satellite is December 17. Obviously it depends very much on how solar activity develops in the coming weeks. So now we have seen decay predictions ranging from December 2011 to April 2012. Let's see how we converge to the actual decay date. 73, Nico PA0DLO ___ 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
[amsat-bb] satellite radios
I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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
[amsat-bb] Re: satellite radios
Other than the TS2000, the only other satellite radio currently on the market is the Icom 9100. Looks like a great radio, though. 73s John AA5JG - Original Message - From: Jim White j...@coloradosatellite.com To: amsat-bb@amsat.org Sent: Monday, November 28, 2011 9:48 PM Subject: [amsat-bb] satellite radios I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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
[amsat-bb] Re: satellite radios
On 11/28/11 16:48, Jim White wrote: I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com Why limit yourself to current radios? The Icom 910 isn't made now but there are a lot of them around. The much older IC-275/IC-475 are cheaper still but give great performance. Harder to get, but I'll bet with a little luck you could get a pair of them for about the same price as a 910H. Another thing to think of is an Elecraft with their 2m/70cm transverters. The Flex 5000 with their 2m/70cm board would make a fantastic rig, albeit at a price (3500 ish?) but is in the neighborhood of the 9100. The IC-290/IC-490 are older ssb rigs, but they'd work pretty well, too. A few thoughts... --STeve Andre' wb8wsf en72 ___ 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
[amsat-bb] Re: satellite radios
Doesnt anyone do it the old fashioned way with 2 antennas and two radios? :) Also whats the scoop on the ISS 437.550 packet now? Kevin KF7MYK Date: Mon, 28 Nov 2011 14:48:20 -0700 From: j...@coloradosatellite.com To: amsat-bb@amsat.org Subject: [amsat-bb] satellite radios I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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
[amsat-bb] Re: satellite radios
Jim, As someone else replied, there is the IC-9100. Pretty much everything but the kitchen sink is available for it. In the same range is the Flex VU-5K. It is still a work in progress, and there are some rough edged on the TS-2000 emulation which you use for CAT control. Still, it is impressive to be able to watch the entire passband of an analog satellite. Both are almost certainly overkill if you are looking at CubeSat telemetry and control. For a basic VU rig, I would try and find a good used FT-847. They are also out of production, but they come up on eBay from time to time. Mine, from 1998, is still going strong, though it is being moved to backup status. Later ones preferred, as Yaesu made several incremental improvements over the production run. Finally, software such as SATPC32 will allow you to take two rigs, such as FT-817s, and operate them as if it were one, full duplex rig. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Jim White Sent: Monday, November 28, 2011 3:48 PM To: amsat-bb@amsat.org Subject: [amsat-bb] satellite radios I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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
[amsat-bb] Re: satellite radios
Hi Jim, Haven't seen your smiling face on here for a long time, a pleasant surprise! I use the 910 and Icom does make a successor to it...I've not used it, but talked to people that have used both and nothing but praise for the new one...As you know there isn't anything the 910 can't do... I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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 73, Dave, WB6LLO dguim...@san.rr.com Disagree: I learn Pulling for P3E... ___ 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
[amsat-bb] LVB Tracker/G5500 help
Would greatly appreciate some help trying to set up my LVB and Yaesu G5500 Had just a fewquestions as to the set up types I should use for the LVB settings: is this rotor considered a 360 degree max az rotor or 450 South CCW = FEN or 450North CCW = FEE second question: is this considered a South CCW stopping rotator, ‘F’, ‘S’, . or For a North CCW stopping rotator (default), ‘F’, ‘N’, . thanks cc amsat-bb@amsat.org dateSat, Nov 26, 2011 at 9:18 PM subject Re: [amsat-bb] Re: quick LVB cal question mailed-by gmail.com Important mainly because of the people in the conversati thanks very much for trying to help unfortunately it really wasn't what I asked. hope someone out there might be able to help a newbie out thanks N2EHG Myles - Show quoted text - ___ 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
[amsat-bb] Re: satellite radios
All, I would put my hand up for the Yaesu FT 847. Its designed for, and has all the features a full duplex sat radio needs (4 antenna connectors, 12 V over coax out for mast-mount pre-amps, normal and inv. doppler correction, plenty of memory spaces etc.) It works flawlessly on U/V and is a pretty decent HF + 6 m rig, too. Connect that to a laptop with SatPC32 and you are all set. I work all currently usable satellites with a modest antenna setup with no problems whatsoever (unlike the TS2000 which apparently has a birdie on the Oscar 29 downlink frequency). As it has been said, they pop up on ebay / vkclassifieds every once in a while. You should be able to get a good used one for about 800 US + 150 shipping from the states. Andreas From: Dave Guimont dguim...@san.rr.com To: j...@coloradosatellite.com Cc: amsat-bb@amsat.org Sent: Tuesday, 29 November 2011 11:53 AM Subject: [amsat-bb] Re: satellite radios Hi Jim, Haven't seen your smiling face on here for a long time, a pleasant surprise! I use the 910 and Icom does make a successor to it...I've not used it, but talked to people that have used both and nothing but praise for the new one...As you know there isn't anything the 910 can't do... I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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 73, Dave, WB6LLO dguim...@san.rr.com Disagree: I learn Pulling for P3E... ___ 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
[amsat-bb] Publicity
Hello everyone, I think most will enjoy this news coverage of amateur radio: http://www.theregister.co.uk/2011/11/28/radio_hams_curiosity_signals/ (from AMSAT-DL post in facebook) -- 73 de JoAnne K9JKM k9...@amsat.org Editor, AMSAT News Service ___ 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
[amsat-bb] 2011 AMSAT President's Annual Report Slides Posted
Hello everyone, A link to the annual President's Report from the 2011 AMSAT Symposium and General Meeting has been added to the front page news items at: http://www.amsat.org. -- 73 de JoAnne K9JKM k9...@amsat.org Editor, AMSAT News Service ___ 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
[amsat-bb] Re: satellite radios
Yes, FT-847 especially higher serial number is still one of the best satellite rigs. I have used the IC-910, the TS-2000 and the FT-847 and I have stories on all of them. I still have the FT-847! Stefan, VE4NSA On Mon, Nov 28, 2011 at 3:48 PM, Jim White j...@coloradosatellite.com wrote: I would appreciate info on what the currently available satellite radios are. We have used the IC-910 and FT-736R for some time and now need to recommend a radio to a couple of groups building cubesats. The 736 is of course long gone but it appears the 910 is also no longer made. We recently helped a group who had bought a TS-2000 and I was not particularly impressed with it as a satellite radio. So what's current and what works well on V and U? Jim j...@coloradosatellite.com ___ 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
[amsat-bb] Re: AO-51 - Last Heard Reports
Looks like theres a sweet 62 degree pass tomorrow afternoon around 2251UTC |1451PT - I'll be monitoring for activity but really want to try and work you, Clint. On 11/28/2011 18:32, Clint Bradford wrote: I hope it is premature, and that '51 will be back in some mode soon ... -- Bryan Herbert - KE6ZGP Newhall, CA. DM04RJ USA http://bryanherbert.com http://twitter.com/ke6zgp ___ 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
