[amsat-bb] arissat-1 current keps
Just to make sure I'm on schedual. I see the next pass at about 1933Z at CN87 with a elevation of about 76 degrees. I realize the keps on this thing can change by the minute. 73 Bob W7LRD Seattle, Wa. ___ 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
Nice clear signal at 1803 Z here in San Jose, CA. IHU temp 42 degrees. Pete WA6WOA ___ 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] What Happened to the PacSats?
About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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 reentry?
Hi all I heard ARISSAT-1 briefly at 1824 and 1826z, but I was unable to decode the BPSK TLM (only a single Kusrk frame). 73 F.Costa, CT1EAT http://ct1eat.no.sapo.pt ___ 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 #2
23:50-23:56 UTC, 3 Jan 2012, Ele 22 S-SE-E, 145.950MHz FM over Japan http://www.ne.jp/asahi/hamradio/je9pel/20104ar1.mp3 1:22-1:27 UTC, 4 Jan 2012, Ele 7 W-WN-N, 145.950MHz FM over Japan http://www.ne.jp/asahi/hamradio/je9pel/20104ar2.mp3 JE9PEL, Mineo Wakita ___ 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 current keps
My pass this morning (1003AM PST) was actually about three minutes AHEAD of AMSAT-NA's Keplerian data from last Thursday. Clint Bradford clintbradf...@mac.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: Looking for a G3RUH dish
You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruninga bruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner' glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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 still functioning
Good telemetry during the 1933Z pass today. No major changes in temperature noted. Using today's keps, height is 184.2 km, so it can't stay up much longer. Max elevation was 39 degrees and had to manually tune to keep the audio in the telemetry decoder. 73, Ken, W7KKE CN75xa ___ 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 reentry?
Hi David I heard that pass, and it seemed to be in low power mode, so on for 30 seconds and then off. It should be around for a few hours more. Thanks David G0MRF In a message dated 03/01/2012 17:34:39 GMT Standard Time, at746da...@gmail.com writes: Hello everybody: This is David EA4SG. Just a moment ago at 16:54 UTC while the Arissat-1 was over the vertical of Madrid, I was listening to the SAT and it stopped/interrumped suddenly its transmissions while it was still in a theorical sunny or iluminated area. Not sure if it was the final re-entry but It could be. So I decided to leave this info here. The last sent voice message sent was the italian one and at the end of the secret word, it stopped. A moment before, I was able to record around 40 seconds of CW telemetry in 145.919 Khz but very poor signal/noise rate. Best 73s David EA4SG ___ 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] ARISSat-1: Goodbye little guy...
No reception over NH at the predicted time of around 14:25. I kept the receiver on for a while before and after, but nothing. One of my programs said it was at 147Km; the other said 127. If 127 is right, then it's probably down. Otherwise, maybe it overheated. Also the last telemetry on the web site is for 6:02z 4Jan. Apparently no one else over a swarth from Mexico and Texas up through New Englad received it either. On the last telemetry frame, the RF temp was 88C. Not quite enought to fry eggs, but not good for semiconductors. It's been a lot of fun 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] Rapid frequency change on ARISSat pass
On the nominal 0015 UTC pass over Texas, the ARISSat-1 telemetry seemed normal but at about 4-5 minutes before LOS, the frequency of the CW marker and the BPSK telemetry envelope started dropping very rapidly. I lost track how many times I had to adjust the Doppler-corrected frequency down by 100 Hz. Then suddenly, the telemetry signal stopped. 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] Re: ARISSat-1 (37772) decay
Hi, My updated (and probably last) prediction for the decay of ARISSat 1: January 4, 09:00 UTC ± 5 hours. Recent predictions from other sources: - USSTRATCOM TIP message: January 4, 05:34 UTC ± 11 hours - Aerospace: January 4, 07:35 UTC ± 4 hours (http://reentrynews.aero.org/1998067ck.html). For those who would like to track ARISSat 1 till the very end, but who do not have access to the latest orbital data, I have generated the following two-line element sets. After 2012-01-04, 01:10 UTC, use this set: 1 37772U 98067CK 12004.04907143 .10590547 82197-1 80387-3 0 94757 2 37772 51.6192 213.1232 0005039 247.4614 112.4853 16.39580411 24076 After 2012-01-04, 02:35 UTC, use this set: 1 37772U 98067CK 12004.10999442 .12344606 11664+0 78957-3 0 94751 2 37772 51.6188 212.7785 0004712 247.7188 112.2313 16.40971462 24087 After 2012-01-04, 04:05 UTC, use this set: 1 37772U 98067CK 12004.17086135 .14945730 18056+0 77289-3 0 94750 2 37772 51.6183 212.4335 0004334 247.9765 111.9774 16.42620927 24090 After 2012-01-04, 05:30 UTC, use this set: 1 37772U 98067CK 12004.23166040 .19278117 32316+0 63018-3 0 94754 2 37772 51.6178 212.0879 0003875 248.2346 111.7241 16.44675832 24107 After 2012-01-04, 07:00 UTC, use this set: 1 37772U 98067CK 12004.29237155 .28278236 77737+0 51650-3 0 94753 2 37772 51.6170 211.7417 0003268 248.4933 111.4719 16.47481875 24116 73, Nico PA0DLO On 2012-01-02 16:38, Nico Janssen wrote: Hi, My updated prediction for the decay of ARISSat 1: January 4, 18:00 UTC ± 12 hours. Recent predictions from other sources: - USSTRATCOM TIP message: January 4, 12:06 UTC ± 24 hours - Aerospace: January 4, 07:34 UTC ± 28 hours (http://reentrynews.aero.org/1998067ck.html). 73, Nico PA0DLO On 2012-01-01 15:49, Nico Janssen wrote: Hi, My updated prediction for the decay of ARISSat 1: January 4, 10:00 UTC +/- 18 hours. Recent predictions from other sources: - USSTRATCOM TIP message: January 4, 07:46 UTC +/- 48 hours - Aerospace: January 4, 07:34 UTC +/- 28 hours (http://reentrynews.aero.org/1998067ck.html). 73, Nico PA0DLO On 2011-12-31 15:46, Nico Janssen wrote: Hi, My prediction for the decay of ARISSat 1 still stays on the same date: January 4 +/- 1 day. As the aerodynamic drag increases, the telemetry of the satellite should show ever higher temperatures in the coming days. Especially interesting is the data from the Kursk experiment, that measures the density of the air around the satellite. Happy New Year to all! 73, Nico PA0DLO On 2011-12-22 16:15, Nico Janssen wrote: Hi, My current prediction for the decay of ARISSat 1 is January 4, 2012, +/- 3 days. If solar and geomagnetic activity really increase before the end of December, as some predictions suggest, the decay may be a few days earlier. 73, Nico PA0DLO On 2011-12-11 15:24, Nico Janssen wrote: Hi, Solar activity has remained at relatively low levels. There have not been any M or X class solar flares nor magnetic storms in the past several weeks. As a result, the expected decay date of ARISSat 1 has shifted into January. It is now to be expected around January 3, but depending on solar activity it may be more than 5 days later or earlier. 73, Nico PA0DLO On 2011-11-28 21:36, Nico Janssen wrote: 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 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are
[amsat-bb] Broadcast
I will be doing a live broadcast of the 1610 EST pass over new England at http://www.livestream.com/w1msgsat it will be a 65 degree pass and should be pretty good if things aren't already cooking inside the satellite. Craig ___ 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 descending rapidly
Hi! According to the morning numbers from Space Track, ARISSat-1 is down to 191 km, and losing about 1.5 km per orbit, or about 1 km per hour. The drag effects are increasing rapidly, so TODAY would be an excellent time to make any last minute QSOs through the transponder. Thanks to those who are keeping live telemetry flowing. I wanted to see what passes I might have for ARISSat-1, and used the pass prediction utility on the AMSAT web site. I'm at the office, and don't have my personal laptops with their tracking programs handy. It is now showing only 3 more passes, two tonight and one at 1555-1600 UTC tomorrow. Even if I chose to see the next 50 passes, I only get data for these 3 passes. Space-Track.org has a TIP message from a few hours ago predicting a decay time of 0534 UTC tomorrow +/- 11 hours. I suppose that is consistent with what I saw from the pass prediction utility on the AMSAT web site. Time is running out... 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ 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] Need grid EL28 confirmed?
Email me off-list if you need the grid EL28 confirmed. I am going to make a brief trip there later in the week and have several people who've expressed they need it confirmed. I will do at least one pass on an FM satellite. 73 Clayton W5PFG ___ 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
Hello to All Just copy sstv on 145950 FM , at 19:59 utc max elev. 4 dgr with good signals. Best 73! Pedro Cruz - CU2JX ___ 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: Need East Coast
Hi! Since becoming active on satellites again in April 2011, I have managed to work 48 states on the FM transponders with portable equipment. I did not set out to accomplish this minor feat on FM alone because I do also operate VO-52, AO-7, and FO-29 /P. Hawaii is impossible for me unless AO-7 is used. New Hampshire is the other state I need but I've got several options to get it confirmed if I would just sit down and schedule one with friends. Maine is not common but New Hampshire seems less common in my ~8 month window of activity. Scott N1AIA has been the regular Maine representative on the FM birds for a while. When he's active, he can get through and put his state in many logbooks. New Hampshire... there's a state I did not work at all in 2011, and only 8 times since I've been on the satellites over the past 6 years. The last New Hampshire contact I logged via satellite was with WA1ZDV in October 2010, while I was at the AMSAT Symposium in the Chicago area. I've also worked N1ABA, N1XED, and N1DCG - all resident in the state, per QRZ.com - along with WA5KBH when he was up there in October 2009. I seem to catch them more often when I am away from home, as the last time I worked that state from here in the Phoenix area was in mid-2007. As for Hawaii on AO-7, I can't help you with that right now. Honolulu is a non-stop flight away from here in Phoenix, I have only flown over that state (going to and from Australia a few months back), and I can work AO-7 with my portable gear from just about anywhere I go. Hmmm :-) FO-29 should also work for you, if it comes back on and stays in operation. My suspicion is there is a group of been there, done that experienced operators that don't get on and operate much any more. Maybe this is because there's not a HEO satellite, maybe they have all the wall paper they want, perhaps they get annoyed the LIDs on FM transponders, or maybe they are just waiting on the next great bird to get them active again. In any case, I would invite those of you who have not operated the current satellites in recent times to get on the air so that some of us newcomers have a chance to be acquainted with you. When it comes to working stations in different grids, states, provinces, etc. - everything is cyclical. What is very common now can become rare, and the rare places can become common. It could be one of the reasons Clayton mentioned above, or others (people move, real life gets in the way of working satellites, etc.). For hams trying to work all of the US states (or at least all of the states outside of Alaska and Hawaii) on or near the coasts, it helps to have operators willing to work the lower passes that are needed to span the distance. Sometimes it takes effort to coax someone into a road trip to put some grid/state/province on the air. That is the only way I've logged Delaware on the satellites, when a couple of satellite operators drove to that state to put it on the air in the summer of 2009. Patience is definitely required, whether you are trying to work grids, states, etc. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ 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 R.I.P.
Applause and accolades to the ARISSat-1 Team, for the tremendous amount of fun, excitement, opportunities and activity that ARISSat-1 provided! I got hooked at launch, listening/watching on the internet even as I was also on HF that day conducting an exercise with the local and state R.A.C.E.S. teams and the local nuclear power plant during the launch. I started tracking and gathering telemetry a few days later and dedicated a PC and my sat station to automated telemetry gathering 24/7. I split off the 2M signal to my FT-817 and captured hundreds of amazing SSTV pictures. I enjoyed watching the telemetry decoding program on my PC showing the live readings. I followed especially in the last days, on the arissattlm.org web site. Much of this excitement I shared with my local ham radio groups in meetings and on the air, with local children and non-hams, and even in Colombia over Christmas I engaged some of the family with listening for the secret word in Spanish. A few attempts were made when I had time, to make contacts through the transponder. I heard myself and others, and had a part of a QSO... but never got that complete QSO. I became so engaged with the telemetry that near the end, I wrestled with the decision to try a transponder contact or to keep copying telemetry in hopes of the last telemetry award! Thank you very much, all who made ARISSat-1 possible. Your work was very fruitful indeed. I look forward to the Fox family and hope that we can keep up the enthusiasm and support necessary to stay on the air in space! 73, Jerry N0JY ___ 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] ARRISAT-1 re-entry?
Hi, Nothing heard on the 10:10 Z pass over the south of England. I was monitoring from 5 minutes before predicted AOS to take into account the rapid changes in the keps. 73 John G7HIA ___ 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
23:50-23:56UTC, 3 Jan 2012, Ele 22 S-SE-E, 145.950MHz FM over Japan http://www.ne.jp/asahi/hamradio/je9pel/20104ar1.mp3 JE9PEL, Mineo Wakita ___ 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: Rapid frequency change on ARISSat pass
Forgot to note the altitude give by the most recent keps was 175 km. Ron W5RKN From: Ronald G. Parsons Sent: Tuesday, January 03, 2012 6:27 PM To: AMSAT-BB Subject: Rapid frequency change on ARISSat pass On the nominal 0015 UTC pass over Texas, the ARISSat-1 telemetry seemed normal but at about 4-5 minutes before LOS, the frequency of the CW marker and the BPSK telemetry envelope started dropping very rapidly. I lost track how many times I had to adjust the Doppler-corrected frequency down by 100 Hz. Then suddenly, the telemetry signal stopped. 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] Preliminary Keplerarian elements for Vega launch
Does anyone have any preliminary keps for this one? I'm not so worried about whether they are correct with respect to launch/pass times, but just for a generic orbit of the same dimensions. I think it's supposed to be 350x1500km, 71 degree inclination, or thereabouts? 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] Last Voice Heard from ARISSat-1
The last pre-recorded voice message heard from ARISSat-1 today? That of Yuri Gagarin speaking to his ground crew. How appropriate. Clint Bradford, K6LCS ___ 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-004 ANS Special Bulletin: ARISSat-1/KEDR Goes Silent
AMSAT NEWS SERVICE ANS-004 SB SAT @ AMSAT $ANS-004.01 ANS-004 AMSAT News Service Special Bulletin: ARISSat-1/KEDR Goes Silent AMSAT News Service Bulletin 004.01 From AMSAT HQ SILVER SPRING, MD. January 4, 2012 To All RADIO AMATEURS BID: $ANS-004.01 Reception reports indicate that ARISSat-1/KEDR has stopped trans- mitting on Wednesday, January 4, 2012. The last full telemetry captured and reported to the ARISSatTLM web site at 06:02:14 UTC on January 4 were received from ground stations as the satellite passed over Japan. See: http://www.arissattlm.org/live (full telemetry display) See: http://www.arissattlm.org/mobile (condensed telemetry) Telemetry reports showed that the temperature aboard ARISSat-1/KEDR had been rising as atmospheric drag began to affect the satellite. Final temperatures received via ARISSatTLM reported this data: IHU 75 ° C / 167.0 ° F PSU 76 ° C / 168.8 ° F RF88 ° C / 190.4 ° F Control Panel 61 ° C / 141.8 ° F Experiment64 ° C / 147.2 ° F Stations receiving telemetry from ARISSat-1 at any time over the last few months, please forward all of your .CSV telemetry files to telemetry AT arissattlm.org. Konstantin, RN3ZF sent a reception report of his copy of the 0842 UTC pass that, the telemetry was absent, voice messages were not legible, very silent and interrupted. Most likely, I saw last minutes in the life of the satellite. Dee, NB2F reported, Nothing heard from ARISSat-1/KEDR on any fre- quency during the first USA pass at 16:00 UTC, January 4. ARISSat-1/KEDR was deployed from the International Space Station on August 3, 2011 during during EVA-29 on by Cosmonaut/Flight Engineers Sergei Volkov and Alexander Samokutyaev. The satellite carried a student experiment from Kursk State University in Russia which measured atmospheric density. Students from around the world provided the voices for the FM voice announcements. The amateur radio payload aboard ARISSat-1/KEDR achieved many firsts for amateur radio in space: + First flight test of AMSAT Software Defined Transponder which trans- mitted simultaneous: - FM voice downlink cycling between student messages, spoken telemetry and SSTV from cameras on the spaceframe. - 16KHz bandwith linear transponder, - CW beacon with telemetry and callsigns of radio amateurs noting their significant contributions to amateur radio in space. - Robust, forward error corrected 1K rate BPSK downlink with sat- ellite telemetry and Kursk experiment telemetry. + Development and release of the ARISSatTLM software for PC and Mac platforms enabled amateur stations worldwide with reliable reception of the BPSK telemetry, CW telemetry, display on the station's com- puter, and automatic upload of received data via the internet to the ARISSat engineering team. + A new Integrated Housekeeping Unit was developed and successfully flown. + A new Power Management System was developed and successfully flown. AMSAT President Barry Baines, WD4ASW noted, ARISSat-1/KEDR marked a new type of satellite which has captured the attention of the national space agencies around the world for the unique educational opportunity we have been able to design, launch, and operate. By designing an edu- cational mission aligned with NASA's Science, Technology, Engineering, and Mathematics goals amateur radio operators around the world have been able enjoy a new satellite in orbit. ARISSat-1/KEDR Project Manager, Gould Smith, WA4SXM said, Dozens of amateur radio volunteers, AMSAT, ARRL, NASA, and Energia teamed up for this successful mission to bring you the most unique and innovative amateur radio satellite mission. Congratulations to all who made ARISSat-1 successful! [ANS thanks the ARISSat-1/KEDR Team for the above information] /EX ___ 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] KEDR/ARISSat-1 SK, last call for reports
All, Our busy satellite reentered sometime early on 4 January, 2012. The last telemetry was received at 06:02:14 UTC with the temperatures showing very high: http://www.arissattlm.org/live It was not expected that Space Command would do a TIP, but they did, so we have relatively good information on where it ended. Note the impact window is still 6 hours, but that the telemetry report narrows that to about 4. Report Date/Time2012-01-04 04:28:00 GMT Predicted Decay Time2012-01-04 07:00:00 GMT +/- 3 Hours Predicted Decay Location12.7° S, 354.3° E Direction ascending Inclination 51.6° Revolution Number 2411 High Interest ObjectN Final Report The predicted impact point is an open part of the South Atlantic, well west of Angola. If you heard the satellite, even briefly, after 0600 UTC, or you did not hear it after that date and you have been regularly hearing it, please let me know. This will help confirm the actual impact point. For those who have been involved with telemetry collection, and the Chicken Little Contest, please give us a couple of days to get things together before we make formal announcements. Thank your all for your efforts! Alan WA4SCA ___ 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-1 ZDNET Article
Journalist David Meyer interviewed Jim Heck G3WGM for his article on FUNcube-1. Read the article at http://www.zdnet.co.uk/news/emerging-tech/2012/01/04/radio-amateurs-prep-launch-of-tiny-funcube-satellite-40094737/ 73 Trevor M5AKA AMSAT-UK: http://www.uk.amsat.org/ ___ 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 QRT
Hi all No signs from ARISSAT-1 at 1011z. It must be SK by now... Thanks for the great memories! Congratulations to all team for this absolute sucess. 73 F.Costa, CT1EAT http://ct1eat.no.sapo.pt ___ 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 heard
Looks like that the satellite reentered at 0602z today and JA0CAW caught the last signal http://ja0caw-je0mzi.mo-blog.jp/syumi/2012/01/arissat1_950f.html It's sad to see it went away :( -Original Message- From: Vu Trong Thu [mailto:th...@fpt.edu.vn] Sent: Wednesday, January 04, 2012 10:01 AM To: 'amsat-bb@amsat.org' Subject: ARISSat-1 heard The bird is still operating up to 0120z today (Jan 4), however its orbit must has deviated much from the latest TLE on AMSAT website (just one day old?). I suddenly heard its CW beacon while it's still 10 degree under the horizon according to Orbitron's calculation. It was quite a challenge to track the satellite however signal was good, I could decode some telemetry, got a SSTV image and the historical conversation between Korolev and Gagarin :) 73, Thu XV9AA ___ 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: Need East Coast
I worked many of the east coast states (specifically the 13 original states, from Indiana) during the 13 Colony Special Event over the 4th of July weekend in 2011. With luck they'll hold this special event in 2012. 73, Steve N9IP -- -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Patrick STODDARD (WD9EWK/VA7EWK) Sent: Tuesday, January 03, 2012 4:22 PM To: amsat-bb@amsat.org Subject: [amsat-bb] Re: Need East Coast Hi! Since becoming active on satellites again in April 2011, I have managed to work 48 states on the FM transponders with portable equipment. I did not set out to accomplish this minor feat on FM alone because I do also operate VO-52, AO-7, and FO-29 /P. Hawaii is impossible for me unless AO-7 is used. New Hampshire is the other state I need but I've got several options to get it confirmed if I would just sit down and schedule one with friends. Maine is not common but New Hampshire seems less common in my ~8 month window of activity. Scott N1AIA has been the regular Maine representative on the FM birds for a while. When he's active, he can get through and put his state in many logbooks. New Hampshire... there's a state I did not work at all in 2011, and only 8 times since I've been on the satellites over the past 6 years. The last New Hampshire contact I logged via satellite was with WA1ZDV in October 2010, while I was at the AMSAT Symposium in the Chicago area. I've also worked N1ABA, N1XED, and N1DCG - all resident in the state, per QRZ.com - along with WA5KBH when he was up there in October 2009. I seem to catch them more often when I am away from home, as the last time I worked that state from here in the Phoenix area was in mid-2007. As for Hawaii on AO-7, I can't help you with that right now. Honolulu is a non-stop flight away from here in Phoenix, I have only flown over that state (going to and from Australia a few months back), and I can work AO-7 with my portable gear from just about anywhere I go. Hmmm :-) FO-29 should also work for you, if it comes back on and stays in operation. My suspicion is there is a group of been there, done that experienced operators that don't get on and operate much any more. Maybe this is because there's not a HEO satellite, maybe they have all the wall paper they want, perhaps they get annoyed the LIDs on FM transponders, or maybe they are just waiting on the next great bird to get them active again. In any case, I would invite those of you who have not operated the current satellites in recent times to get on the air so that some of us newcomers have a chance to be acquainted with you. When it comes to working stations in different grids, states, provinces, etc. - everything is cyclical. What is very common now can become rare, and the rare places can become common. It could be one of the reasons Clayton mentioned above, or others (people move, real life gets in the way of working satellites, etc.). For hams trying to work all of the US states (or at least all of the states outside of Alaska and Hawaii) on or near the coasts, it helps to have operators willing to work the lower passes that are needed to span the distance. Sometimes it takes effort to coax someone into a road trip to put some grid/state/province on the air. That is the only way I've logged Delaware on the satellites, when a couple of satellite operators drove to that state to put it on the air in the summer of 2009. Patience is definitely required, whether you are trying to work grids, states, etc. 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ 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: ARISSat-1 (37772) decay
Hi, Unfortunately my previous message did not make it through the BB because it was down. As expected, ARISSat 1 has now decayed. According to the first Final Report of USSTRATCOM their last decay prediction was at 07:00 UTC +/- 3 hours on January 4, 2012, during an ascending pass in orbit 2411 when the satellite was near 12.7 S, 354.3 E. The latest report from Aerospace shows their decay prediction at 07:40 UTC ± 100 minutes on January 4, 2012. Since USSTRATCOM usually issues two or three Final Reports, we have to wait for the real final verdict. 73, Nico PA0DLO On 2012-01-03 21:39, Nico Janssen wrote: Hi, My updated (and probably last) prediction for the decay of ARISSat 1: January 4, 09:00 UTC ± 5 hours. Recent predictions from other sources: - USSTRATCOM TIP message: January 4, 05:34 UTC ± 11 hours - Aerospace: January 4, 07:35 UTC ± 4 hours (http://reentrynews.aero.org/1998067ck.html). For those who would like to track ARISSat 1 till the very end, but who do not have access to the latest orbital data, I have generated the following two-line element sets. After 2012-01-04, 01:10 UTC, use this set: 1 37772U 98067CK 12004.04907143 .10590547 82197-1 80387-3 0 94757 2 37772 51.6192 213.1232 0005039 247.4614 112.4853 16.39580411 24076 After 2012-01-04, 02:35 UTC, use this set: 1 37772U 98067CK 12004.10999442 .12344606 11664+0 78957-3 0 94751 2 37772 51.6188 212.7785 0004712 247.7188 112.2313 16.40971462 24087 After 2012-01-04, 04:05 UTC, use this set: 1 37772U 98067CK 12004.17086135 .14945730 18056+0 77289-3 0 94750 2 37772 51.6183 212.4335 0004334 247.9765 111.9774 16.42620927 24090 After 2012-01-04, 05:30 UTC, use this set: 1 37772U 98067CK 12004.23166040 .19278117 32316+0 63018-3 0 94754 2 37772 51.6178 212.0879 0003875 248.2346 111.7241 16.44675832 24107 After 2012-01-04, 07:00 UTC, use this set: 1 37772U 98067CK 12004.29237155 .28278236 77737+0 51650-3 0 94753 2 37772 51.6170 211.7417 0003268 248.4933 111.4719 16.47481875 24116 73, Nico PA0DLO On 2012-01-02 16:38, Nico Janssen wrote: Hi, My updated prediction for the decay of ARISSat 1: January 4, 18:00 UTC ± 12 hours. Recent predictions from other sources: - USSTRATCOM TIP message: January 4, 12:06 UTC ± 24 hours - Aerospace: January 4, 07:34 UTC ± 28 hours (http://reentrynews.aero.org/1998067ck.html). 73, Nico PA0DLO On 2012-01-01 15:49, Nico Janssen wrote: Hi, My updated prediction for the decay of ARISSat 1: January 4, 10:00 UTC +/- 18 hours. Recent predictions from other sources: - USSTRATCOM TIP message: January 4, 07:46 UTC +/- 48 hours - Aerospace: January 4, 07:34 UTC +/- 28 hours (http://reentrynews.aero.org/1998067ck.html). 73, Nico PA0DLO On 2011-12-31 15:46, Nico Janssen wrote: Hi, My prediction for the decay of ARISSat 1 still stays on the same date: January 4 +/- 1 day. As the aerodynamic drag increases, the telemetry of the satellite should show ever higher temperatures in the coming days. Especially interesting is the data from the Kursk experiment, that measures the density of the air around the satellite. Happy New Year to all! 73, Nico PA0DLO On 2011-12-22 16:15, Nico Janssen wrote: Hi, My current prediction for the decay of ARISSat 1 is January 4, 2012, +/- 3 days. If solar and geomagnetic activity really increase before the end of December, as some predictions suggest, the decay may be a few days earlier. 73, Nico PA0DLO On 2011-12-11 15:24, Nico Janssen wrote: Hi, Solar activity has remained at relatively low levels. There have not been any M or X class solar flares nor magnetic storms in the past several weeks. As a result, the expected decay date of ARISSat 1 has shifted into January. It is now to be expected around January 3, but depending on solar activity it may be more than 5 days later or earlier. 73, Nico PA0DLO On 2011-11-28 21:36, Nico Janssen wrote: 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
[amsat-bb] Moderation?
Is this list now moderated? I have joined with a new email address, and my messages from the new email have not come through yet. I am just wondering what is new with this reflector as it has been a very long time since I have posted here. Thanks, Chris Maness KQ6UP DM13 ___ 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: FO29 and Kenwood TH-F6A
Sure! I´ve worked very low passes (5º and less) using a TH-F7E and a CJU antenna (even a dual band whip). Lots of transatlantic QSOs from mobile. My F7E is quite sensitive, but the bandwith is somewhat wide for SSB: http://eb4dka.laserenadigital.com/Videos%20AMSAT/VIDEO_EB4DKA%20via%20FO29%20desde%20movil.html http://eb4dka.laserenadigital.com/Amateur%20Satellite%20Articles/FO29_MOBILE.pdf http://eb4dka.laserenadigital.com/Imagenes/EB4DKA_FO-29_MOBILE1.jpg I even used it for the AO-40 downlink in my mobile setup (glory days!!!): http://eb4dka.laserenadigital.com/Videos%20AMSAT/VIDEO_Kenwood%20THF7%20recibiendo%20el%20AO40.html 73 and happy new year! Pedro EB4DKA http://eb4dka.laserenadigital.com - Original Message - From: John Geiger aa...@fidmail.com To: K4FEG k4...@k4feg.com; amsat-bb@amsat.org Sent: Sunday, January 01, 2012 1:09 AM Subject: [amsat-bb] FO29 and Kenwood TH-F6A Glad to hear that FO29 is back-now to get on it! Has anyone tried using a Kenwood TH-F6A HT to receive FO29, since it does receive SSB? I would be hooking it to an external antenna. Is it sensitive enough on SSB to hear the satellite? The QST review shows its sensitivity is a little down on HF and 6m SSB. 73s John AA5JG - Original Message - From: K4FEG k4...@k4feg.com To: amsat-bb@amsat.org Sent: Saturday, December 31, 2011 11:52 PM Subject: [amsat-bb] FO29 Good to hear FO29 back operating over the US! Lets not forget that our flying friends are fragile and we need to keep looking to the future and the need for replacements. We may get another miracle and have one of the crippled birds come back to life in the future, but do we really want to depend on chance? This is a hobby and we will always be considered second banana when it comes to getting help to fund a launch. Write someone, call someone, offer to help or heaven forbid try and find an extra dollar or two to donate. I don't know where best to use anyone's talents or their monies but I do know this, if we do nothing there won't be someone come along and say, we need an amateur satellite, lets launch one! We need to take the initiative and get another satellite on the launch pad and then beg, borrow or steal a ride into space. A very Happy New Year to everyone and lets get behind some of these satellites and find a way to get them launched! 73's Frank K4FEG ___ 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 ___ 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 RADIOSKAF-V KEDR Signal Status
ALL, I very much regret to report that on the pass over Cincinnati this Morning using Dr. Kelso's Keps for January 4, 2011 with the AOS predicted at 14:24Z, there was no evidence of any signal on 145.950 or 145.930 MHz. It may be that this very enjoyable, interesting and challenging satellite is now history. What have others determined as to signal status? Excellent signals were last heard in this area of the USA from ARISSat on the January 3, 2012 pass at 22:43 Z by W4HTB, Bowling Green, KY, WB8LGA, Marengo, Ohio and W8ZCF, Cincinnati. 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] WD9EWK at ThunderBird hamfest on Saturday (7 January) in Phoenix AZ
Hi! On Saturday (7 January) morning, I will be at the ThunderBird Amateur Radio Club's hamfest in Phoenix AZ with an AMSAT table. The hamfest is in a new location, and is back to being an outdoor event (it had been indoors for the last 3 years). More information about the hamfest is available at: http://www.w7tbc.org/hamfest.html During the hamfest, I will have satellite demonstrations using SO-50 and VO-52. Since I won't have to walk outside to do the demonstrations, I expect to be on all workable passes for these satellites. If you are on those passes, please call WD9EWK and say hello to the crowds. The hamfest site is in grid DM33. If anyone working WD9EWK during those demonstration passes wants a QSL card, please e-mail me with the QSO details. I will be happy to send you a card, without first receiving a card or SASE. All QSOs will be uploaded to the Logbook of the World as well. Thanks in advance, and 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ ___ 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 and Japan
Hmmm ... One of the first reception reports of ARISSat-1 after deployment comes from JN1GKZ in Japan. And the satellite re-enters Earth's atmosphere - over Japan. Just wonderin' out loud ... (grin) Clint Bradford K6LCS ___ 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] No More ARISSat-1 ?
Nothing heard on this morning's pass, AOS 1422UTC, Orbit 2415, EL89. SatPC32 had the altitude at 121km. 73-Larry. K4OZS ___ 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-1 Launch details
An agreement has now been reached with ISIS Launch Services BV, who are based in Delft in the Netherlands, for them to provide a launch of the FUNcube-1 CubeSat. See http://www.uk.amsat.org/2012/01/03/funcube-launch-details/ 73 Trevor M5AKA AMSAT-UK: http://www.uk.amsat.org/ ___ 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] Farewell ARISSat-1
I have not heard anything from ARISSat-1 this morning during the past two calculated passes. I notice the last Telemetry entry was at 0602 UTC, so it is safe to say she has died. It is like losing a friend. It was a lot of fun and I certainly hope the community has learned much from it. Thanks to all who were instrumental during the entire process. 73, -- *Carl W8KRF* ___ 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] ARRISAT-1
Can someone send me the Doppler SQF information for for ARRISAT-1? Thanks Pat McGrath Ka6tya ___ 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-1 Project news update
FUNcube -1 – Launch details and time frame finalised An agreement has now been reached with ISIS Launch Services BV, who are based in Delft in the Netherlands, for them to provide a launch of the FUNcube-1 CubeSat. It is anticipated that FUNcube-1, which has been created by a team of volunteer radio amateurs and other specialists over the past two years, will be launched with a number of other spacecraft from a DNEPR rocket sometime in the third quarter of 2012. The flight is planned to take place from the Yasny launch facility which is in southern Russia near to the Kazakhstan border. The spacecraft needs to be completed by the end of July 2012, ready for shipping from the Netherlands to Russia. The orbit is still to be defined precisely but it is expected to be nearly circular and approximately sun synchronous. This will ensure that the spacecraft has the necessary solar illumination and that it will appear at regular times for educational outreach activities at schools and colleges. The FUNcube-1 spacecraft will transmit signals that can be easily received directly by schools and colleges for educational outreach purposes. This telemetry will give details of the spacecraft’s health – battery voltages and temperatures and from this it will be possible to determine its spin rate and attitude by plotting simple graphs. Additionally, experimental data and messages can be displayed in an attractive format and provide stimulation and encouragement for students to become interested in Science, Technology, Engineering and Mathematics (STEM) subjects in a unique way. The target audience for this project is students at both primary and secondary levels and a simple and cheap “ground station” – actually it looks just like a USB dongle, for schools to use, has already been developed. In addition to providing educational outreach for schools and colleges around the world, the spacecraft will also provide a U/V linear transponder for radio amateurs during local “night”, at weekends and during holiday periods The production and testing of the spacecraft itself has already been funded via a legacy and other sources. It will however really help the project if radio amateurs and other interested supporters could contribute something towards the cost of the actual launch itself. With this in mind a special donation scheme has been setup using the Virgin Giving charity donation website http://tinyurl.com/funcubegiving/ All donations of £25 (or equivalent) or more will be specially acknowledged by the spacecraft itself – exact details will follow shortly! All donations received from UK tax payers can be “Gift Aided” which will add 20% to the value of your donation. More information about this exciting project will be made available over the coming months at the website http://www.funcube.org.uk/ ___ 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: What Happened to the PacSats?
Chris, Like you, I really enjoyed the old digital birds. However, the interest in that has fallen off. AO-51 did have a very nice system, and a few other satellites have had more traditional Packet BBS capabilities. The interest just does not seem to be there, when the old satellites died, there were not replaced. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Chris Maness Sent: Monday, January 02, 2012 9:56 PM To: amsat-bb@amsat.org Subject: [amsat-bb] What Happened to the PacSats? About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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: What Happened to the PacSats?
Hi Chris, The golden days of the Pacsat Store/forward operations appear to be gone for now, if not for good...I am still addicted, and wish everyday for a rebirth... The old pacsat birds are up there, just not functional. For a while a few years ago, we had AO-16 running in voice mode (FM up, side band down)! That was fun. But it only works when the bird is warm from full sunlight--which won't occur for like 10 more years...sigh. LO-19 emits a very low level carrier (most can't see it, or deny it's there...but it is ;) ) WO-18 is like AO-16--transmitter won't stay on. IO-26 is stuck in bootloader mode, emitting bursts of telemetry from time to time. Now, the GOOD news--read about Delphi3C and ISIS. There is some digital downloading/telemetry that will be available perhaps by the end of the year on a few new birds. Then, add Fucube-1 and -2, and there will be more digital telemetry to collect. But the Pacsat BBS operations as you remember them don't exist now. But there IS a lot of telemetry to be collected. The good news is that many of these will be using software based modems, available free of charge! 73, Mark N8MH (admitted digital nut) On Mon, Jan 2, 2012 at 10:55 PM, Chris Maness ch...@chrismaness.com wrote: About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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 -- Mark L. Hammond [N8MH] ___ 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 reception with video.
As an avid Hamsat operator with limited equipment I was able to listen and record a pass of arissat-1 two days ago. My goal was to make a memento of sorts for my log of new acheivements for 2012.I thought some readers might like to see it. 73, VE7DAO / VA7ISS http://ve7dao.blogspot.com/2012/01/listening-to-arissat-1-with-arrow.html ___ 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: ARRISAT-1
Pat, I used these: ARISSAT1,145918.180,0,USB,,,0,0,BPSK/CW-2 ARISSAT1,145950.0,0,FM,,,0,0,VOICE/SSTV ARISSAT1,145930.0,435750.0,USB,LSB,REV,0,0,XPDR ARISSAT1,145938.2,0,USB,,,0,0,CW-1 Fingers crossed we will need them again. Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Pat McGrath Sent: Wednesday, January 04, 2012 12:35 PM To: amsat-bb@amsat.org Subject: [amsat-bb] ARRISAT-1 Can someone send me the Doppler SQF information for for ARRISAT-1? Thanks Pat McGrath Ka6tya ___ 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: What Happened to the PacSats?
There are still the aprs sats like iss pcsat go-32 and maybe some more I forgot. offcourse this is direct digpeating and not store and forward but can still be a lot fun. 73 Andre PE1RDW Op 4-1-2012 20:27, Mark L. Hammond schreef: Hi Chris, The golden days of the Pacsat Store/forward operations appear to be gone for now, if not for good...I am still addicted, and wish everyday for a rebirth... The old pacsat birds are up there, just not functional. For a while a few years ago, we had AO-16 running in voice mode (FM up, side band down)! That was fun. But it only works when the bird is warm from full sunlight--which won't occur for like 10 more years...sigh. LO-19 emits a very low level carrier (most can't see it, or deny it's there...but it is ;) ) WO-18 is like AO-16--transmitter won't stay on. IO-26 is stuck in bootloader mode, emitting bursts of telemetry from time to time. Now, the GOOD news--read about Delphi3C and ISIS. There is some digital downloading/telemetry that will be available perhaps by the end of the year on a few new birds. Then, add Fucube-1 and -2, and there will be more digital telemetry to collect. But the Pacsat BBS operations as you remember them don't exist now. But there IS a lot of telemetry to be collected. The good news is that many of these will be using software based modems, available free of charge! 73, Mark N8MH (admitted digital nut) On Mon, Jan 2, 2012 at 10:55 PM, Chris Manessch...@chrismaness.com wrote: About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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: Preliminary Keplerarian elements for Vega launch
Hi Drew. If you would like to have a look at the Vega orbit, find a LEO sat in NOVA and change the following: Inclination 70 degrees Mean motion 14.05 Eccentricity 0.079 It does not show everything correctly because of launch time but it does show coverage and an orbital period near 105 minutes. Thanks David G0MRF -Original Message- From: Andrew Glasbrenner glasbren...@mindspring.com To: amsat-bb amsat-bb@amsat.org Sent: Wed, 4 Jan 2012 18:21 Subject: [amsat-bb] Preliminary Keplerarian elements for Vega launch Does anyone have any preliminary keps for this one? I'm not so worried about whether they are correct with respect to launch/pass times, but just for a generic orbit of the same dimensions. I think it's supposed to be 350x1500km, 71 degree inclination, or thereabouts? 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 ___ 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] EL97 on 7January AO-27
I've had several requests for EL97. I will plan to be on the AO-27 pass at 1824z or so on Saturday, 7 January 2012. This pass should work well for the eastern half of the US. If there are any west coast stations that need it, I will stay for the next AO-27 pass at 2005z. If you can't make the 1824z pass but want to try the next pass please email me. Otherwise I'll just operate on the 1824z pass. 73, John K8YSE/4 ___ 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: What Happened to the PacSats?
I've been wondering if the issue is not lack of interest but lack of education and marketing. If newer hams were to see and understand the benefits of a store-and-forward PacSat, I believe you'd see a level of support as strong as days passed. I have been playing with terrestrial packet and digital modes for 20 years and the thought of exchanging messages via satellite excites me. Unfortunately I did not partake in the PacSats' capabilities when they were functional. 73 Clayton W5PFG On Wed, Jan 4, 2012 at 1:24 PM, Alan P. Biddle apbid...@united.net wrote: Chris, Like you, I really enjoyed the old digital birds. However, the interest in that has fallen off. AO-51 did have a very nice system, and a few other satellites have had more traditional Packet BBS capabilities. The interest just does not seem to be there, when the old satellites died, there were not replaced. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Chris Maness Sent: Monday, January 02, 2012 9:56 PM To: amsat-bb@amsat.org Subject: [amsat-bb] What Happened to the PacSats? About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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 ___ 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: What Happened to the PacSats?
Op 4-1-2012 21:29, Chris Maness schreef: I have been looking into using the APRS digipeater on the ISS to send txt messages. Is this possible? I go hiking and camping a lot, and it would be cool to at least digipeat through the ISS. What would be even better is an email sat. Store and forward to gatway stations that relay emails like winlink does. This would be great for outbackers and people in developing areas that don't have this ability. The gateway station could approve and foreward inbound email too so that way the messages are sent like 3rd party traffic. No spam and junk like that. Just a Thought, Chris Maness KQ6UP Short emails are posible trough iss http://wa8lmf.net/bruninga/aprs/sset-email.GIF it's one way only but good enough for checkin messages, there are enough monitoring stations to cover most needs, africa might be a bit hard at places but even there, there should be posibileties. 73 Andre PE1RDW 73 Andre PE1RDW ___ 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] ARRISAT-1 Last Known 2-way Contact
Maybe this the last confirmed Two-way contact via Arrisat-1 ? 03/01/2012 15:20 2E0SQL-GW1FKY sent 55 rx 58-9 73 Rob M0TFO ___ 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 Last Known 2-way Contact
Sorry had a sticky RRR On 4 Jan 2012, at 21:20, Rob Styles wrote: Maybe this the last confirmed Two-way contact via ARISSat-1? 03/01/2012 15:20 2E0SQL-GW1FKY sent 55 rx 58-9 73 Rob M0TFO ___ 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: Need East Coast
Steve, maybe you could email me the calls of the people you worked and I could contact them? Merv mervynhe...@yahoo.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] NEW ENGLAND
OK, maybe my last post was too general in asking about East Coast contacts. If anyone is New York or New Jersey sees this message please contact me to set up a schedule. Merv K)6E ___ 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: What Happened to the PacSats?
Warning! My opinion follows: Many of the pacsats were university sats built for missions similar to today's cubesats. GO-32, the Korean ones, the University of Surrey ones, Tiuansat, etc. They operated in the amateur bands, and were generally open access to the store and forward parts, while also carrying out experiments, imaging, and training. Somewhere along the line, things went closed. While cubes have drawn down the pool of these size and type sats being launched, they are still happening, and without amateur two-way missions. Without malice, I'm going to point to Edusat, and the Unisat series as the most visible of these in recent memory. There are others also, including from the US and Japan. The question we should be asking ourselves is what caused this? Is it something hams did to put off the unis? Is it lack of involvement in the early phases, or just lack of interest or understanding of what we might provide such a program in return? How did we get to a point where a 25 or 50 kg satellite, using amateur frequencies, has no two way package in it? More importantly, how do we get back to the way it was before? Note I'm not disputing these programs right to exist, just that something has changed, and it's in our self-interest to figure it out. 73, Drew KO4MA -Original Message- From: Alan P. Biddle apbid...@united.net Sent: Jan 4, 2012 2:24 PM To: 'Chris Maness' ch...@chrismaness.com, amsat-bb@amsat.org Subject: [amsat-bb] Re: What Happened to the PacSats? Chris, Like you, I really enjoyed the old digital birds. However, the interest in that has fallen off. AO-51 did have a very nice system, and a few other satellites have had more traditional Packet BBS capabilities. The interest just does not seem to be there, when the old satellites died, there were not replaced. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Chris Maness Sent: Monday, January 02, 2012 9:56 PM To: amsat-bb@amsat.org Subject: [amsat-bb] What Happened to the PacSats? About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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 ___ 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] HO-68
Hi all... I am wondering with the lack of Operational Satellites up at the moment.what is actually wrong with HO-68... All I could find out is that it had a scheduling problem, so what does this mean...its hardware or software...? With the limited life of these birds I would think they would implement something to at least get part of it working...if at all possible. John ___ 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: Need East Coast
Merv, Maybe you could list the states you are looking to work. Dave - KB1PVH Sent from my Verizon Wireless DROID X ___ 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: What Happened to the PacSats?
Hi Clayton / Alan Since the original launch of the store and forward satellites - Was it the mid 1980s? -we've had all sorts of terrestrial methods of doing the same thing. E-mail, texting, social media etc. All have depleted interest. Arissat has (sorry...had...sob..) some very innovative technologies and the digital voice announcements were particularly effective. Personally, in an era of limited communication range from LEOs, I would really like to see some experimental stored and forwarded voice messages. For example, Imagine a 'transponder' that would allow 30 seconds of voice recording over the mid-west USA combined with a command to allow the satellite to transmit that message in 20 minutes time when it's over Europe. Sounds difficult, but a CTCSS tone or DTMF could be used to tell the satellite what delay was required before retransmission. I'm not sure the ARRL would like the idea issuing worked all continents awards for a QSO that takes 3 hours to complete, but it would be fun. 73 David G0MRF In a message dated 04/01/2012 21:08:55 GMT Standard Time, kayakfis...@gmail.com writes: I've been wondering if the issue is not lack of interest but lack of education and marketing. If newer hams were to see and understand the benefits of a store-and-forward PacSat, I believe you'd see a level of support as strong as days passed. I have been playing with terrestrial packet and digital modes for 20 years and the thought of exchanging messages via satellite excites me. Unfortunately I did not partake in the PacSats' capabilities when they were functional. 73 Clayton W5PFG On Wed, Jan 4, 2012 at 1:24 PM, Alan P. Biddle apbid...@united.net wrote: Chris, Like you, I really enjoyed the old digital birds. However, the interest in that has fallen off. AO-51 did have a very nice system, and a few other satellites have had more traditional Packet BBS capabilities. The interest just does not seem to be there, when the old satellites died, there were not replaced. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Chris Maness Sent: Monday, January 02, 2012 9:56 PM To: amsat-bb@amsat.org Subject: [amsat-bb] What Happened to the PacSats? About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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 ___ 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: Looking for a G3RUH dish
Bob, Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an easier alternative to rolling your own. I picked one up on ebay about a year ago and put it in my attic... waiting for amsat-dl :-) http://www.plumdragon.com/teksharp/hr_AO-40_products.htm Drew, I have a spare PF dish about 60 cm, but it is steel, not aluminum like the G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it. 73, Jerry, K5OE previous message You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruninga bruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner' glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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: HO-68
John, Alan Kung, BA1DU and CEO of CAMSAT was one of the speakers at the Dayton AMSAT Forum. He reported that HO-68 is suffering from a bad relay or relay driver that is used to switch from the beacon to the transponder. The likelihood of recovery is low, but not zero. Here is the explanation from Alan's slide. These are exact quotes, not my interpretation: -- The current situation is the transponders will be difficult to switch the RF PA from beacon mode to transponder mode -- The RF relay or its drive circuit is failing, it is a stick relay. Probability of success of switch is probably a few tenth -- On the other hand, up to now the both solar and lithium-ion batteries are in very nice condition -- The exhibitions of the thermal-control, onboard flight computer and TTC are also excellent. 73, Steve N9IP -- -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of John Mac Sent: Wednesday, January 04, 2012 5:06 PM To: amsat-bb@amsat.org Subject: [amsat-bb] HO-68 Hi all... I am wondering with the lack of Operational Satellites up at the moment.what is actually wrong with HO-68... All I could find out is that it had a scheduling problem, so what does this mean...its hardware or software...? With the limited life of these birds I would think they would implement something to at least get part of it working...if at all possible. John ___ 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: What Happened to the PacSats?
Hi Chris IMHO Pacsat interest decrease at same rate internet connections increase. By early 90's, electronic messaging was something new, and not available to ordinary people, like us hams. But now we can do it almost anywhere in the world, for an infinite fraction of the price, with minimal equipment. We no longer need radios, antennas, pre-amp, az/ev rotators, trackers, PC running 24h, etc. No more need to wait for a 15 min pass, stay in queue, miss our turn, go back to the end, and wait for the the next pass for the remaining 1 kb to complete the file... Yes, it was fun (specialy to built and leave the station working unatended), but those days are over! Sorry. 73 F.Costa, CT1EAT http://ct1eat.no.sapo.pt - Mensagem original - De: Chris Maness ch...@chrismaness.com Para: amsat-bb@amsat.org Enviado: terça-feira, 3 de Janeiro de 2012 3:55 Assunto: [amsat-bb] What Happened to the PacSats? About 12 years ago, I was really into amateur radio satellites (the analog birds). I always wanted to try the PacSats, but I was a college student, and could not afford all of the necessary hardware. I tried to do it in software (and ended up falling in love with Linux). Now I have a good source of income, and was looking into dabbling in the PacSats, but looking at the Amsat website, it looks like none of the old birds are up. So are there any plans to restore store and forward messaging capability in future ham radio birds? Is this currently still possible and I am just missing something? Thanks, Chris Maness KQ6UP ___ 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: HO-68
As I recall it was a problem with a relay. 73 Trevor M5AKA --- On Wed, 4/1/12, John Mac vk2...@gmail.com wrote: Hi all... I am wondering with the lack of Operational Satellites up at the moment.what is actually wrong with HO-68... All I could find out is that it had a scheduling problem, so what does this mean...its hardware or software...? With the limited life of these birds I would think they would implement something to at least get part of it working...if at all possible. John ___ 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: Looking for a G3RUH dish
Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an easier alternative to rolling your own. We are after absolute minimum wind drag. I don't think the Tek dish would survive accurate tracking while driving along the interstate at 70 PMPH to catch a balloon. And we want it to be a good 3' by 4' dish... Need the gain for the tiny wifi video link... Bob I picked one up on ebay about a year ago and put it in my attic... waiting for amsat-dl :-) http://www.plumdragon.com/teksharp/hr_AO-40_products.htm Drew, I have a spare PF dish about 60 cm, but it is steel, not aluminum like the G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it. 73, Jerry, K5OE previous message You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruninga bruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner' glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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: Looking for a G3RUH dish
John at Spectrum International used to sell a strong 3 foot mesh dish for HRPT (WX). Jeff K2SDR -Original Message- From: Bob Bruninga Sent: Wednesday, January 04, 2012 5:54 PM To: 'K5OE' ; amsat-bb@amsat.org Subject: [amsat-bb] Re: Looking for a G3RUH dish Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an easier alternative to rolling your own. We are after absolute minimum wind drag. I don't think the Tek dish would survive accurate tracking while driving along the interstate at 70 PMPH to catch a balloon. And we want it to be a good 3' by 4' dish... Need the gain for the tiny wifi video link... Bob I picked one up on ebay about a year ago and put it in my attic... waiting for amsat-dl :-) http://www.plumdragon.com/teksharp/hr_AO-40_products.htm Drew, I have a spare PF dish about 60 cm, but it is steel, not aluminum like the G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it. 73, Jerry, K5OE previous message You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruninga bruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner' glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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 ___ 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: Looking for a G3RUH dish
I am not sure Tek Sharp continues to make the patch feeds. They certainly do not make the tri-band feed, but I was able to get a dual band patch from them in June 2009 for one of their hardware cloth dishes. 73's, Tim - N8DEU - Original Message - From: K5OE k...@aol.com To: amsat-bb@amsat.org Sent: Wednesday, January 04, 2012 4:37 PM Subject: [amsat-bb] Re: Looking for a G3RUH dish Bob, Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an easier alternative to rolling your own. I picked one up on ebay about a year ago and put it in my attic... waiting for amsat-dl :-) http://www.plumdragon.com/teksharp/hr_AO-40_products.htm Drew, I have a spare PF dish about 60 cm, but it is steel, not aluminum like the G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it. 73, Jerry, K5OE previous message You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruninga bruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner' glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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] Email via The ISS Was: What Happened to the PacSats?
Short emails are posible trough iss http://wa8lmf.net/bruninga/aprs/sset-email.GIF it's one way only but good enough for checkin messages, there are enough monitoring stations to cover most needs, africa might be a bit hard at places but even there, there should be posibileties. 73 Andre PE1RDW I had a low pass right now and I did not get a repeat of what I sent up. I am beaconing: KQ6UPBEACON,ARISS: UI: :EMAIL:kq...@kq6up.org This is a test of ISS mail. This did not echo back, but this is what I did decode: ISS Crew Keyboard. Crew may not be available. For BBS/PMS use RS0ISS-11 RS0ISS-4N7HQB: UA: and three more very similar lines. Should I be using RS0ISS for the via? Has the call sign changed? Thanks, Chris Maness KQ6UP ___ 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] HudsonValleySatcomGroupNetThursdayJan05@8PMEasternOnEcholink N2EYH-L
Hello all. It is time again for our HVSG net tomorrow Jan.05 @ 8 PM Eastern. You can find us on Echolink @ N2EYH-L or on the Mt. Beacon Repeater 146.970 pl 100. We usually have an Amsat area Coordinator,Dee NB2F,check into the Net. So if you have any questions about Amsat Dee is the man to ask. So please join us for the Net and share your satellite experience with us all. Hope to hear you there. 73 GaryWA2AQH/TomKC2DTQ ___ 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] Repository for all Doppler.SQF data
I'm surprised that nobody has made an online repository for the Doppler.SQF files for ALL amateur satellites. What would be the best place to keep one? AMSAT-NA web site? On the DK1TB's web site, where people go to download SATPC32? Maintaining a Doppler.SQF repository would be relatively easy. The list isn't that huge, and new satellites don't come along very often. The repository would also logically include SubTone.SQF and AmsatNames.txt information. Wayne Estes W9AE ___ 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: Email via The ISS Was: What Happened to the PacSats?
On Wed, Jan 4, 2012 at 4:56 PM, Andre pe1...@amsat.org wrote: Op 5-1-2012 1:45, Chris Maness schreef: Short emails are posible trough iss http://wa8lmf.net/bruninga/aprs/sset-email.GIF it's one way only but good enough for checkin messages, there are enough monitoring stations to cover most needs, africa might be a bit hard at places but even there, there should be posibileties. 73 Andre PE1RDW I had a low pass right now and I did not get a repeat of what I sent up. I am beaconing: KQ6UPBEACON,ARISS:UI: :EMAIL :kq...@kq6up.org This is a test of ISS mail. This did not echo back, but this is what I did decode: ISS Crew Keyboard. Crew may not be available. For BBS/PMS use RS0ISS-11 RS0ISS-4N7HQB:UA: and three more very similar lines. Should I be using RS0ISS for the via? Has the call sign changed? Thanks, Chris Maness KQ6UP iss should digi both trough ariss and rs0iss-4, if someone is using the bbs there will be a lot of colisions so you will have to give it several tries, especialy on low power, you can always test the email system on 144.390. you can also look at http://www.findu.com/cgi-bin/ariss/index.cgi for successfull repeats. 73 Andre PE1RDW How do I send email on 144.390? Is the same way as I would send via the ISS? Thanks, Chris ___ 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: Email via The ISS Was: What Happened to the PacSats?
KQ6UPBEACON,ARISS: UI: :EMAIL:kq...@kq6up.orgThis is a test of ISS mail. That is a good APRS email packet. But the3 next lines indicate that you were CONNECTING to RS0ISS and not remaining in UI mode. If y ou are connected, then you get the crew not available text, and you will not be able to see any digipeates for your APRS beacon while you are connected. APRS and the ISS digipeater have nothing to do with connections. CONNECTIONS to or via satellties are VERY inefficient and should never be used (normally). Bob, Wb4APR ___ 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: Need East Coast
I have a brother in Strafford, NH (not a ham) - next time we go out there for a visit, I will take the radio and the Elk antenna and activate NH, ME and MA. (I wonder if there's a spot where I can activate all three at once? Oh, Google Earth...) George, KA3HSW - Original Message - From: Patrick STODDARD (WD9EWK/VA7EWK) amsat...@wd9ewk.net To: amsat-bb@amsat.org Sent: Tuesday, January 03, 2012 3:21 PM Subject: [amsat-bb] Re: Need East Coast Hi! [snip] Scott N1AIA has been the regular Maine representative on the FM birds for a while. When he's active, he can get through and put his state in many logbooks. New Hampshire... there's a state I did not work at all in 2011, and only 8 times since I've been on the satellites over the past 6 years. The last New Hampshire contact I logged via satellite was with WA1ZDV in October 2010, while I was at the AMSAT Symposium in the Chicago area. I've also worked N1ABA, N1XED, and N1DCG - all resident in the state, per QRZ.com - along with WA5KBH when he was up there in October 2009. I seem to catch them more often when I am away from home, as the last time I worked that state from here in the Phoenix area was in mid-2007. [snip] ___ 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] Email via The ISS
On Wed, Jan 4, 2012 at 5:11 PM, Bob Bruninga bruni...@usna.edu wrote: KQ6UPBEACON,ARISS: UI: :EMAIL :kq...@kq6up.org This is a test of ISS mail. That is a good APRS email packet. But the3 next lines indicate that you were CONNECTING to RS0ISS and not remaining in UI mode. If y ou are connected, then you get the crew not available text, and you will not be able to see any digipeates for your APRS beacon while you are connected. APRS and the ISS digipeater have nothing to do with connections. CONNECTIONS to or via satellties are VERY inefficient and should never be used (normally). Bob, Wb4APR The person connected was not me, it was N7HQB: RS0ISS-4N7HQB: UA: Thanks for checking over my work. I see that my terrestrial email test worked. I got: This is a test of email via APRS. Date : 2012-01-05 01:12:39 UTC From : KQ6UP To : kq...@kq6up.org IGATE: N6EX-3 --- OpenAPRS.Net Message to Email Gateway Looks Iike I am good to go. I just need to keep trying :o) Thanks, Chris Maness KQ6UP ___ 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] Thank You
This is a quick note to thank Paul, KB5MU, the gentleman behind the listma...@amsat.org curtain for all the hard work to get the AMSAT e-mail lists operational. Today was a day of headlines for AMSAT. Paul got things moving. Thank you for what you do for AMSAT! -- 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] K2BSA/5 on the air for ARRL Kids Day, January 8.
K2BSA/5 will be on the air this Sunday for ARRL Kids Day from the National Scouting Museum in Irving, Texas, EM12. Although satellite pass opportunities will be limited, we should be able to hit the 1936Z and 2117Z AO27 passes. 1936 will be almost 66 degrees but the later pass will be only 10 or so. My hope is to have multiple radios and antennas in the hands of Scouts tracking and listening to the downlinks while I get a few on the mic. Take it patient and slow but please call K2BSA/5 and get some Scouts and adults excited about Ham Radio Next K2BSA/5 opportunity from the Museum will be February 11 for a Radio Merit Badge class. Hope to meet you on the birds. Tom Schuessler 2713 Lake Gardens Drive Irving, Texas 75060 972-986-7456 214-403-1464 (Cell) tjschuess...@verizon.net ___ 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: Thank You
Amen JoAnne, And he was doing at least by 1980, and helped me get started on the computer in connection with satellite communications. And I am sure, many othersTnx, Paul 73 88's JoAnne Dave This is a quick note to thank Paul, KB5MU, the gentleman behind the listma...@amsat.org curtain for all the hard work to get the AMSAT e-mail lists operational. Today was a day of headlines for AMSAT. Paul got things moving. Thank you for what you do for AMSAT! -- 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 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] Re: Looking for a G3RUH dish
Hi Bob, I'm trying to visualize you driving (bouncing) down the freeway at 70 mph with a square yard of curved (airfoil!) metal sitting at odd angles to the air flow, trying to aim it at a target you may not be able to see clearly, which is also moving at some rate in another direction, with an accuracy of +/- a half dozen degrees (which is what you get with a dish that size). I had a hard enough time aiming my 30 inch BBQ grill at AO-40, from my nearly stationary house (this is California, after all), with up to date KEPS, a rotor system calibrated earlier against the position of the Sun, NBS-sync'd clock on a Linux PC, and so forth. Even if you mount the dish inside a camper minivan with a fiberglass roof (think mobile Radome), I don't see how this is going to work. I've seen you do amazing things, but what are you thinking? The best use of the dish would probably be to catch the balloon payload as it falls from the sky... Greg KO6TH From: bruni...@usna.edu To: k...@aol.com; amsat-bb@amsat.org Date: Wed, 4 Jan 2012 17:54:02 -0500 Subject: [amsat-bb] Re: Looking for a G3RUH dish Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an easier alternative to rolling your own. We are after absolute minimum wind drag. I don't think the Tek dish would survive accurate tracking while driving along the interstate at 70 PMPH to catch a balloon. And we want it to be a good 3' by 4' dish... Need the gain for the tiny wifi video link... Bob I picked one up on ebay about a year ago and put it in my attic... waiting for amsat-dl :-) http://www.plumdragon.com/teksharp/hr_AO-40_products.htm Drew, I have a spare PF dish about 60 cm, but it is steel, not aluminum like the G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it. 73, Jerry, K5OE previous message You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruninga bruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner' glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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 ___ 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: Looking for a G3RUH dish
Speaking of which, can any of the available amateur software packages handle a moving ground station? I'd like to be able to automate the antenna tracking on a boat. 73, doug On 05-Jan-12 05:55, Greg D. wrote: Hi Bob, I'm trying to visualize you driving (bouncing) down the freeway at 70 mph with a square yard of curved (airfoil!) metal sitting at odd angles to the air flow, trying to aim it at a target you may not be able to see clearly, which is also moving at some rate in another direction, with an accuracy of +/- a half dozen degrees (which is what you get with a dish that size). I had a hard enough time aiming my 30 inch BBQ grill at AO-40, from my nearly stationary house (this is California, after all), with up to date KEPS, a rotor system calibrated earlier against the position of the Sun, NBS-sync'd clock on a Linux PC, and so forth. Even if you mount the dish inside a camper minivan with a fiberglass roof (think mobile Radome), I don't see how this is going to work. I've seen you do amazing things, but what are you thinking? The best use of the dish would probably be to catch the balloon payload as it falls from the sky... Greg KO6TH From: bruni...@usna.edu To: k...@aol.com; amsat-bb@amsat.org Date: Wed, 4 Jan 2012 17:54:02 -0500 Subject: [amsat-bb] Re: Looking for a G3RUH dish Regarding your Cu wire dish... you might look at the Tek Sharp dishes as an easier alternative to rolling your own. We are after absolute minimum wind drag. I don't think the Tek dish would survive accurate tracking while driving along the interstate at 70 PMPH to catch a balloon. And we want it to be a good 3' by 4' dish... Need the gain for the tiny wifi video link... Bob I picked one up on ebay about a year ago and put it in my attic... waiting for amsat-dl :-) http://www.plumdragon.com/teksharp/hr_AO-40_products.htm Drew, I have a spare PF dish about 60 cm, but it is steel, not aluminum like the G3RUH. I used it on AO-40 for 24 GHz. Let me know off-list if you want it. 73, Jerry, K5OE previous message You probably have one of the K5GNA BBQ dishes. The G3RUH is a solid round spun dish. 73, Drew -Original Message- From: Bob Bruningabruni...@usna.edu Sent: Jan 3, 2012 2:19 PM To: 'Andrew Glasbrenner'glasbren...@mindspring.com, 'amsat-bb' amsat-bb@amsat.org Subject: RE: [amsat-bb] Looking for a G3RUH dish I'm looking for one of the 60cm G3RUH dishes Got one, (but not available). Questions: I measured reflector grid separation as .88 inches which works out to be about 0.18 wavelength. I always thought the grid had to be tighter than 0.1 inches to be an effective surface. Maybe the difference with almost double the spacing is not that significant? (especially for a steel one which would be quite heavy. Reason I am asking is that I also need another S band dish (at 70 MPH on the roof of a tracking van) and we are thinking about building one by using an old solid 6' TVRO dish as a form and laying in copper wire and soldering it to copper straps. With all that labor, I'd not want to get the spacing wrong. Bob, Wb4APR ___ 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 ___ 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
