[amsat-bb] Re: Guess the mystery noise
Sounds like UO-11 to me. N8UX At 04:03 PM 8/31/2010, you wrote: http://www.gjcp.net/~gordonjcp/weirdnoise.mp3 Recorded on 145.825MHz at around 20:57 BST, in IO75ww - I have no idea what it is. From the way it faded up and down I'd guess it was something in orbit but I can't figure out what. It's not the ISS, it's not NO-44 - I know a couple of other sats use 145.825MHz but none of them seem to fit the bill either. Gordon MM0YEQ ___ Sent via amsat...@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...@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: Guess the mystery noise
Has anyone decoded any tlm channels (that aren't dead)? Rich N8UX ___ Sent via amsat...@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: Keps for the oldies?
Thanks to Andrew, Adrian, and Alan for pointers to space-track.org, and Nigel for the file. On my way... Rich, N8UX ___ Sent via amsat...@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: Keps for the oldies?
I'm assuming space-track.org has taken the place of the old NASA O.I.G. site that I remember using several years ago. Thanks again to all for the info...Rich, N8UX ___ Sent via amsat...@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] Transystem 3731 vs. 3733
Can someone tell me the major difference between the two downconverters? Ten years ago or so, I used a 3733 un-modded at the fed point of an 8ft dish to copy ao-40 tlm. Today I read a lot of references to the 3731, but not much about the 3733. Just wondering if one is preferable to the other. Rich, N8UX ___ Sent via amsat...@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: Transystem 3731 vs. 3733
Thanks for the links, Ron. It's been a while since I've dabbled with 2.4ghz, since AO-40's heyday. Going to get my old toys back out this summer. This info will help stir those brain cells back up. Rich http://www.k3roj.com/images/AIDC3733downconvtr.txt http://www.jrmiller.demon.co.uk/products/patfot.htm http://www.amsat.org/amsat/archive/amsat-bb/200110/msg00136.html http://128.54.16.15/amsat/archive/amsat-bb/200104/msg00285.html http://www.jrmiller.demon.co.uk/products/patfot.htm ___ Sent via amsat...@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...@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: Sir Martin Sweeting
Well deserved. ...Rich, N8UX At 08:31 AM 1/19/2010, you wrote: SSTL founder and Surrey Space Centre director Sir Martin Sweeting has received the Lifetime Achievement Award at the Elektra Electronics Industry Awards 2009. Full story here: http://www.satnews.com/cgi-bin/story.cgi?number=1747025893 ___ Sent via amsat...@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-7 QSO 7694 Km
Congratulations on your and Andre's achievement. No time for errors inside a 30 second window! Enjoyed the video/audio as well. Rich, N8UX At 06:14 PM 1/8/2010, PS8RF wrote: I posted a short video with the contact maintained today with Andre, ZS2BK via AO-7 in mode B ( Orbit 60848 - 19:47 UTC - 01/08/10 ). We keep the QSO with a small window that the AO-7 has provided us. The window was only about 34 sec, this time interval we could not match any commit error. The distance between the two stations is 4085 miles or 7669 Km. Andre wrote via email: My Doppler calc was also gratefully spot on. For example I calculated that I should call so that my downlink is on 145.944.2 mhz I worked out that our Doppler difference would be 3.8 khz and amazing that was spot-on. There is really no time to tune ! Andre is right the time was too little for adjustments. Taking also into account that I manually worked the rotor and control of my rig. See the sound/video in youtube: http://www.youtube.com/watch?v=zNFmHERisWQ ___ Sent via amsat...@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] 471A Service manual - looking again
Alas, my search is back on again for a service manual (not the instruction manual, which does have some technical info, but is not comprehensive) for the Icom IC-471A. I do have the instruction manual, as well as a schematic. Thanks again to all who helped previously, and thanks in advance for anyone who can help put me back on the trail. Rich, N8UX ___ Sent via amsat...@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: 471A Service manual - looking again
That thought has crossed my mind (that one never existsed)- I heard or read somewhere that there was once a service manual that covered both the 271 and 471, but I've never seen it. Will keep looking though. Thanks! Rich, N8UX Rich, I'm hoping this is wrong, but I was talking with another ham who had lots of Icom stuff and he said that there never was a service manual for the 471--something about Icom running out of time, etc, and that the 271 would be a general guide to the 471. ___ Sent via amsat...@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: ARRL Sat Article
I've heard/read about OSCARs I II having their antennas deploy after separation from the Agena B, but from all the photos I have seen, it shows a fixed antenna. There is even a photo of an AF specialist installing OSCAR I into the payload bay, and this photo shows the antenna fully deployed. So on these first two satellites, I'm unsure. OSCAR III had four antennae made of steel rule type material that were fan-folded, or otherwise folded and secured to fit within the assigned area. And Australis OSCAR 5, as well as OSCAR 6 used actual carpenter's rules as antenna material. They were tied back, and self deployed when the satellite was released. Rich, N8UX At 11:49 PM 12/30/2009, you wrote: I understand that the early Oscars got their ride into space by replacing a piece of concrete (or similar dead weight material) with our satellite. That's why they have the shape that they do (looking like a segment of a ring). But what about the antenna? Was it deployed after launch, or did it ride into space already sticking out the side? An on-orbit deploy would have been excessively complicated for that era (it's even difficult today!), but I can't see something like that surviving launch intact, either. ___ Sent via amsat...@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: OSCAR I Antenna
A bit of a correction/addition to my earlier email. Don Stoner, W6TNS (sk) described the antenna of OSCAR I in a Feb 1962 article in CQ: The cover of the package contained a fixture for the 1/4 wave monopole which used the case as a counterpoise. The antenna was secured to the cover until after the transmitter separated from the parent vehicle. Rich, N8UX At 11:49 PM 12/30/2009, you wrote: I understand that the early Oscars got their ride into space by replacing a piece of concrete (or similar dead weight material) with our satellite. That's why they have the shape that they do (looking like a segment of a ring). But what about the antenna? Was it deployed after launch, or did it ride into space already sticking out the side? An on-orbit deploy would have been excessively complicated for that era (it's even difficult today!), but I can't see something like that surviving launch intact, either. ___ Sent via amsat...@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: Hope-1 (XW-1/HO-68) video available on YouTube
Great production Henk - Thanks! Rich, N8UX ___ Sent via amsat...@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: Cosmonaut describes ARISS contact
And speaking of ARISS, I saw on twitter (from @RF2Space) that there were a total of 121 contacts with schools in 2009. Rich, N8UX At 11:00 AM 12/29/2009, you wrote: I thought you'd like to see the following blog entry: http://rt.com/About_Us/Blogs/orbital-log/2009-12-28.html 73 de andy g0sfj ___ Sent via amsat...@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 Sounds Record from 1958
Found it in mp3 format on Amazon also - http://www.amazon.com/gp/product/B000S98UMI?ie=UTF8tag=outoftheeth-20linkCode=as2camp=1789creative=390957creativeASIN=B000S98UMI I've got to get this. The liner notes are very interesting...Rich At 10:07 PM 12/16/2009, you wrote: http://www.folkways.si.edu/albumdetails.aspx?itemid=1145 http://media.smithsonianfolkways.org/liner_notes/folkways/FW06200.pdf -- Joe Leikhim K4SAT The RFI-EMI-GUY© Use only Genuine Interocitor Parts Tom Servo ;-P ___ Sent via amsat...@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...@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: 2 Line via mail - Thanks!
Thanks to all who provided the info on the GSFC 2 line elements that I used to receive in my mailbox every few days. I currently update all my software through the satellite element update feature within satpc. I download the keps, and run a little script that updates my other tracking programs (and as we all know, one can't have too many tracking programs!). I recall now that I used the GSFC mailings for Amateur, as well as weather satellites for APT reception. I remember that I was pretty familiar with the interpretation of the 2-line format, and could type them in fairly quick. Don't ask me to repeat this feat today! Was it tedious? I guess you could say yes, but remember that feeling you had when you loaded, then ran a tracking program on your home computer for the first time - that computer being a Sinclair, trs-80, coco, VIC, C-64, Apple II, Osbourne (insert your favorite here)? Remember the elation of printing out, sometimes in the matter of just a few minutes, batch prediction output for the whole week? Oscarlocator was a fine method that worked well for us, but Wow! A home computer in my shack! Then we sat and imagined a day when we could get our computers to aim our antennas, and compensate for doppler. Thanks to all who filled in the details on my little digression down memory lane. I'm sure there are those of you on the list who's lane goes down much farther than mine, and I'd like to hear the stories. Thanks! Rich, N8UX ___ Sent via amsat...@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: NASA 2 Line via mail?
I think so, but as I recall we were limited to a total of 10. Not surprising as the process looked pretty manual. They were photocopies of output from some cranky old teletype terminal (ASR-33?). Ah yes... I remember that! It did look as if an old teletype was chugging these things off from some dark corner of a GSFC back office. And yes, I remember a limit of ten, although I think I had separate mailings for WX and Amateur satellites, at least until I started updating the amateur sats from the journal back pages. Rich, N8UX ___ Sent via amsat...@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] NASA 2 Line via mail?
An open invitation to the list to assist in jogging this not so young man's memory... a bit of nostalgic research I'm doing. Thanks in advance for everyone's help. Back what I used to call not so many years ago, maybe 1980-1985, I recall NASA mailing me 2-line elements for specific satellites I had selected. These would come in an official manilla envelope with an extremely official looking NASA label affixed to it. I recall these would arrive in my mailbox every week or so. Later they dwindled to perhaps one per month. At some point, they just stopped mailing them to me. Perhaps I had missed a reminder to update my subscription info. I'm assuming more than likely the free service just became redundant, as BBS systems, and later internet services began providing them online for free. Not to mention the Oscar data provided in the AMSAT Journal. An aside - you can skip this paragraph if you want me to cut to the quick - I was living in an apartment with my then new, now ex, wife. We were the only young couple in the complex. The ladies sitting in the breezeway thought we were gov'mt spies receiving coded instructions. They always kept one eye on us as we unlocked our mail slot, and pulled out one of these covert communiques. One accidentally was placed in another mail slot once. The nice elderly woman who lived below us returned it to me as I came home from work. She said, I think you'll be needing this. Handed it to me, and hurried back into her apartment. I tucked it under my coat, and went upstairs - I knew there were eyes peering out behind every door. I can't say that I tried to dispell the myth. My apologies, Ms. Maxine, in Apt 303... God rest her soul. Question(s): * Which NASA office did these originate from? * When did this service begin/end? * Could requests be made for any unclassified object in orbit, as long as the designator was known? For your eyes only, (ssshhh...) Rich, N8UX ___ Sent via amsat...@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: PREDICT/Linux question
Thanks! Got it working... Rich, N8UX At 09:11 AM 11/18/2009, you wrote: Yes several times You can edit /root/.predict/predict.qth ___ Sent via amsat...@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 Orbit Prediction in Python
Great stuff, Mark. I'm an old, dusty assembler, and later a C programmer. Used to program for fun, then for profit, then after a few years of life I looked around and the art had snuck ahead of me. I used to hack up the PREDICT code for my own devious purposes, and just to have fun with the source. Your blog post reminded me of how fun it is to cobble together one's own code to solve a particular problem. Keep it up! Rich, N8UX Mark wrote: You can find some of the simple example code at my blog: http://brainwagon.org/2009/09/27/how-to-use-python-to-predict-satellite-locations/ I'll probably be porting all of my existing scripts to use this soon. In the mean time, if you have a similar task, you might look to it to solve your custom satellite prediction problems. 73 Mark K6HX ___ ___ Sent via amsat...@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] CARE Launch from Wallops - Live Video
http://sites.wff.nasa.gov/webcast/ Rich, N8UX. ___ Sent via amsat...@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] Virgin Galactic Small Satellites
Virgin Galactic Deal Targets Small Satellite Launches. Whitehorn said a business plan is being evolved by working very closely with Surrey Satellite Technology Limited, a leading small satellite company based in Guildford, United Kingdom. That group has already delivered operational space missions for a range of applications including Earth observation, science and communications. http://www.space.com/news/090728-virgin-galactic-satellite-launch.html Rich, N8UX ___ Sent via amsat...@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] Apollo 11 Real-time Audio + 40
FYI - We've all heard the familiar Tranquility base here, the Eagle has landed, but if you want to hear all the air to ground in real-time (plus 40 years), NASA is replaying it at - http://www.nasa.gov/externalflash/apollo11_radio/ Seems to be everything, even the long periods of silence. 73, Rich, N8UX ___ Sent via amsat...@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: SuitSat-II question
Don't get me wrong, the use of the suit is a marketing master-stroke. But am I right that it's basically only there for support (both mechanically and politically)? Yeah, I think it's mostly for media impact. The sight of a lifeless suit floating away from the station is Stanley Kubrick-ish creepy. Rich, N8UX ___ Sent via amsat...@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: Question about building the Cheap Antenna by WA5VJB
At 08:52 PM 4/28/2009, you wrote: I am working on some a couple of the Cheap antennas by WA5VJB, that have been talked about on here. I am building these for Field Day and th use for some moble work on AO-51 AO-27 after that. My question is this, Is the J /DE element centered in line with the others or is just the long side in line? Hi Marv - See the link below. The element is centered at the point midway between the free end and the most outward part of the bend where the matching length heads back toward the feedpoint. That's about as complicated as I can put it - hi... Rich, N8UX ___ Sent via amsat...@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
