[amsat-bb] Re: ARISSat-1 Not Heard
Hello Nader. I heard the sat go into eclipse over Europe earlier in the evening. It appeared to shut down immediately it passed into darkness. The battery does not appear to have any capacity left. Perhaps all AMSAT spacecraft should be designed to operate on solar panels alone after the battey fails. We are very lucky with ARISSat-1, not so fortunate with AO-40 Regards David -Original Message- From: Nader Omer st...@yahoo.com To: amsat bb bb amsat-bb@amsat.org Sent: Sat, 20 Aug 2011 1:51 Subject: [amsat-bb] ARISSat-1 Not Heard HI ARISSat-1 Not Heard Orbit #245 00:19 - 00:30 UTC 73 Nader st2nh ___ 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] Fwd: ARISSAT heard on FUNcube Dongle - I/Q wav file read with iSDR on iPad
Hello, Last night Aug 19, I captured ARISSAT VHF transmission using FCD and Audacity audio software to save I/Q wide band signal on my Mandriva Linux system. I monitored the signals using quisk. Doppler shift was not too fast at the end of a nearly overhead pass in Paris. For this first attempt I could note manage to listen ARISSAT and save the signal simultaneously. At the end of the pass, ARISSAT was very week but I decided to record the FCD output blindly. I saved stereo .wav file with 44100 samples per seconds for compatibility with iPad iSDR application. I could then play back recorded file with iSDR. Despite the faint signals Waterfall display showed clearly CW and BPSK beacons and fine tuning the listening frequency through the touch screen sensitivity of the iPad application let me decode parts of CW beacon with iSDR 200 Hz filter. I will upload soon recorded wav file and screen capture of waterfall on my site. 73 de Bernard, f6bvp Envoyé de mon iPad ___ 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 telemetry and Doppler tuning
One thing I've discovered which makes things go more smoothly is to reduce the minimum Doppler tuning interval. I am using SatPC32 V12.8a. There are two parameters in the CAT menu -- the Speed which I changed to 5x (which is not sticky) and the minimum Doppler tuning step for SSB which I set to zero (it will be sticky if you remember to click Store). With these two changes, although the Doppler correction may drift off, it does so very smoothly, which I assume allows the decoding of the BPSK data to be more accurate. Ron W5RKN ___ 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] ARISSat-1 TLM
HI UTC 13:32 - 13:43 . Orbit # 253. Good signal the entire pass. The spacecraft in High Power Mode. MET was 2666. 58 frames grabbed and forwarded. 73’s Nader ___ 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] FUNcube received ARISSAT stereo I/Q recording for SDR
Hello, This was a proof of concept i.e. recording under Linux with Audacity, ARISSAT signal received with an FUNcube dongle. Signals were weak for the record was performed at the end of the night pass. wav file can be transferred on an iPad an then read with the very nice application iSDR. I will try to do a better recording next time. The 14MB file can be downloaded from : http://f6bvp.free.fr/videos/Audacity_FCD_41000_Stereo_16bits_19_08_11_1930UTC.wav 73 de Bernard, f6bvp ___ 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] HamSpeak - SatSpeak
QST adds a Hamspeak sidebar to articles to explain some of the jargon in the article. I feel the need for a SatSpeak sidebar. Today I heard a station working an FM pileup giving his grid location as The Lighthouse. I thought I understood the grid system but The Lighthouse is a new one for me. Perhaps it is another mystery word. W9KE tom LM 0875 ___ 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: Hamspeak - Satspeak
Tom: You probably made contact with W2GSB. Here is the message he had posted on this board earlier. Hello, I will be operating, as W2GSB, from the historic Fire Island Lighthouse, FN30, for the Great South Bay Amateur Radio Club tomorrow, 8-20 and 8-21st, the first pass will be with SO-50, 16:30 U and all the subsequent FM passes. A special certificate is available, mail to W2GSB Lighthouse, PO Box 1356, West Babylon, NY 11704, thank you. Do not send envelope, club will supply. 73's Pete WB2OQQ www.massapequanyweather.com 73's Mike Schaffer KA3JAW Tampa, Florida EL87 ___ 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] 2 to 10 meter converter
I've been making an effort to downsize a bit a found an old treasure, or it might be to someone. It is a downconverter made by parks electronics laboratory in Beaverton, or. Its labeled as Model 144-1 two meter converter. 144 = 28mhz and 145=29mhz. Has a self contained power supply. It is quite well made and last time I fired it up it worked. Any body want it? I could send a picture so email me off list. Rick W2JAZ ___ 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: Turn off AGC when receiving BPSK-1000
On 8/19/11 7:51 AM, Gregg Wonderly wrote: What kind of digital are you suggesting? Voice and data both? A digital path from anywhere on the planet to the appropriate ground station is easily doable with some documentation of the ground stations. Digital voice would be the easiest to support since the data rate is so modest. Low rate data ( 100 kb/s) wouldn't be much harder. All it takes is a stabilized platform with microwave antennas. Any ground station with an Internet connection could automatically link with the ISS and relay it to a central point (e.g., Houston) and then hand it off to the next ground station. One advantage we hams have always had over NASA itself are our numbers and geographical distribution. We obviously wouldn't be able to cover the large parts of the earth that are entirely water but we could still do a pretty good job with the rest. ___ 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] ANS-233 AMSAT Weekly Bulletins
AMSAT NEWS SERVICE ANS-233 ANS is a free, weekly, news and information service of AMSAT North America, The Radio Amateur Satellite Corporation. ANS reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites. Please send any amateur satellite news or reports to: ans-edi...@amsat.org In this edition: * AMSAT Symposium Banquet Speaker Announced * AMSAT Fox to Become Fox-1 and Fox-2 * Worked 5 in EM55 Award List Continues to Grow * FO-29 Reaches 15th Birthday * BPSK-1000 Test Files and Downlink SDR Passband Recording Available * NASA Announces Next Opportunity for CubeSat Space Missions * Time Running Out On The DARA Matching Gift Challenge * Satellite Shorts From All Over * ARISS Status - 15 August 2011 SB SAT @ AMSAT $ANS-233.01 AMSAT Symposium Banquet Speaker Announced AMSAT News Service Bulletin 233.01 From AMSAT HQ SILVER SPRING, MD. August 21, 2011 To All RADIO AMATEURS BID: $ANS-233.01 The Symposium committee is pleased to announce that Lance Ginner, K6GSJ has agreed to be our banquet speaker. 2011 is the 50th anniversary of the first amateur satellite in space (OSCAR 1) and Lance was part of the team that developed that satellite. We are also pleased to announce that Alan Bowker, WA6DNR has volunteered to take over the reins for the 2011 AMSAT Symposium in San Jose, CA. Alan was kind enough to step in for Herb Sullivan, K6QXB who had to resign this week for personal reasons. The Symposium and Annual Meeting will be held Nov 4-6 at the Wyndham San Jose Hotel adjacent to the San Jose airport. See the AMSAT Web site for details, reservation form and additional information. [ANS thanks Gould, WA4SXM, for the above information] /EX SB SAT @ AMSAT $ANS-233.02 AMSAT Fox to Become Fox-1 and Fox-2 AMSAT News Service Bulletin 233.02 From AMSAT HQ SILVER SPRING, MD. August 21, 2011 To All RADIO AMATEURS BID: $ANS-233.02 The AMSAT Fox CubeSat project is being split into a complementary pair of new CubeSats named Fox-1 and Fox-2. Fox-1 will address the need to quickly develop and launch a replace- ment for the ailing AO-51. Fox-1 will include an FM transponder pair- ed with a simple IHU for telemetry and control and fitted to a basic CubeSat space frame. This small and highly focused set of capabilities will significantly reduce the time needed for satellite development and construction allowing for a launch target in the second half of 2013. The advanced technology, research and development work, started for the original Fox satellite, will be continued and rolled into Fox-2 including the software defined transponder. With Fox-1 addressing the immediate need for an AO-51 replacement, Fox-2 will instead be designed for a linear transponder mission. A linear transponder requires considerably more power so Fox-2 will also include an advanced power system and a cutting-edge space frame with deploy- able solar panels. Fox-2 will have a launch target in the 2015 time frame. There are still opportunities for developers interested in working on these satellites especially in the areas of project management, systems engineering, thermal and mechanical design, CNC machining, circuit design, software development, system test and test equipment development. If interested, please send email to Tony Monteiro, aa...@amsat.org [ANS thanks AMSAT Vice-President of Engineering, Tony Monteiro, AA2TX for the above information] /EX SB SAT @ AMSAT $ANS-233.03 Worked 5 in EM55 Award List Continues to Grow AMSAT News Service Bulletin 233.03 From AMSAT HQ SILVER SPRING, MD. August 21, 2011 To All RADIO AMATEURS BID: $ANS-233.03 In an effort to help increase interest in satellites, hams in the Memphis, Tennessee area have created a new award for working five (5) different hams via satellite in the EM55 grid. You do not have to be in your home grid to count the stations worked. There are several satellite ready hams in EM55. Here is the current list of EM55 based satellite operators that we know of: WA4NVM, WA4HFN, WB4LHD, WA4OVO, KI4OTG, KD4NOQ, KJ4BIX, AJ4KF, N4MGT and W5KUB. Send your log to WA4NVM or WA4HFN for checking, along with your current mailing address. The award is free and should any dona- tions be sent, they will be forwarded to AMSAT along with your call and name. This award will be effective 1 June 2011, therefore, all contacts must be on or after this date. Here is list of the Worked 5 in EM55 awards: WA4NVM - 1 KB0RZD - 6 KB1RVT - 11 KM9U - 16 NX9B - 21 WA4HFN - 2 W5KUB - 7 AC0RA - 12 K4FEG - 17 KC0YBM - 22 KI4OTG - 3 AJ5C - 8 K4YYL - 13 K7TRK - 18 N8MS - 23 K8YSE - 4 CO6CBF - 9 KB1PVH - 14 KF7MYK - 19 W5PFG - 24 N9AMW - 5 WC7V - 10 N8RO - 15 KI6YAA - 20 [ANS thanks Rick, WA4NVM for the above information] /EX SB SAT @ AMSAT $ANS-233.04 FO-29 Reaches 15th Birthday AMSAT News Service Bulletin
[amsat-bb] Arissat-1 Comic
By request a new comic is on my QRZ page for veiwing... Kevin KF7MYK ___ 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] ARISSat-1 Voice Telemetry 02:01z 8/21/2011 CM98
Wow, a nearly overhead pass, apparently mostly in high power mode (a first here at KO6TH) 02:01z 8/21/2011 as received in CM98 Voice announcement (possibly Chinese or similar) Telemetry: MET = 45 min IHU Temp = +33c Control panel temp = +21c Battery = 35.70v Current = ?? (QSB) Voice announcement (English) Canned SSTV picture More voice (Spanish, I believe) 02:04 telemetry MET = 47 IHU Temp = +34c Control panel temp = +22c Battery = 35.85v Current = -12ma more voice (Spanish, reference to Puerto Rico?) Live SSTV More Spanish Telemetry MET = 49 IHU temp = +34c Control panel temp = +22c Battery = 35.78v Current = -20ma English announcement Voice (Chinese?) Live SSTV picture English announcement Telemetry MET = 51 IHU temp = +35c Control panel temp = +23c Battery = 35.90v Current = -20ma At this point the satellite turned off for the first time during the pass. Then LOS. Great pass, but why did it turn off? Greg KO6TH ___ 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] EduSat active?
Hi to everyboby , are there any news/reports about reception of EDUSAT ? Thanks Giulio AB2VY ___ 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] I heard it! (Was frustrated!)
Thanks to everyone for the encouragement. Tonight for the 7PM pass of ARISSat I went up on a hill where I had a good view of the horizon, taking my F6a and a slightly-better-than-stock ducky. I actually heard the bird! Not strongly, and (surprisingly) not until it was way down on the horizon toward the end of the pass. I thought I heard a carrier on and off but slightly before LOS, I hear a tone, followed by a woman speaking telemetry values. I could actually understand it mostly even though it was pretty much down in the noise. Interestingly, holding the antenna VERTICALLY gave the best results. Since I heard a woman, I guess that means it is reading the SD card again...or is that just for the messages? I'm wondering whether the direct-overhead time that I heard nothing the bird's antenna was actually pointing away. Has anyone had any estimates of how fast it is tumbling now? Anyway, I know now that my radio can do it. Next I have to mange to get a better signal to it. Thanks again! Burns, W2BFJ ___ 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] ARISSat-1 Pass In DO33 2011-08-21 @ 0342 UTC
The FM telemetry signal was acquired at 0342. The following was heard: - End of ID (...01S) - Speech in unknown language - MET = 54 minutes - IHU temp. = +34 deg. C - Control panel temp. = +24 deg. C - Battery voltage = +35.54 V - Battery current = -20 mA - ID - Speech in another unknown language - Tones (SSTV?) Reception ended at 0345. The signal was generally clear with strength of at least S7. 73s Bernhard VA6BMJ ___ 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
