[amsat-bb] AO-51
What's the status of AO-51? I've read that it's dead and I've also read that people are still using it. Thanks, Kevin Muenzler, WB5RUE Grid-EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I'd be unstoppable if it weren't for law enforcement and physics ___ 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
Re: [amsat-bb] AO-51
Dead. -Original Message- From: Kevin Muenzler, WB5RUE Sent: Monday, August 18, 2014 8:27 AM To: 'AMSAT BB' Subject: [amsat-bb] AO-51 What's the status of AO-51? I've read that it's dead and I've also read that people are still using it. Thanks, Kevin Muenzler, WB5RUE Grid-EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I'd be unstoppable if it weren't for law enforcement and physics ___ 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
Re: [amsat-bb] AO-51
AO-51 remains non-operational. We still try to restart her occasionally, in case a cell opens, but that isn't likely. Here's the original announcement from 2+ years ago: http://amsat.org/pipermail/ans/2011/000571.html The good news is at least two Fox-1 sats will launch next year, both carrying Mode B FM repeaters, as well as at least one camera and several university experiments. There are several ways to donate to the program at http://www.amsat.org/ 73, Drew KO4MA -Original Message- From: Kevin Muenzler, WB5RUE ke...@eaglecreekobservatory.org Sent: Aug 18, 2014 9:27 AM To: 'AMSAT BB' amsat-bb@amsat.org Subject: [amsat-bb] AO-51 What's the status of AO-51? I've read that it's dead and I've also read that people are still using it. Thanks, Kevin Muenzler, WB5RUE Grid-EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I'd be unstoppable if it weren't for law enforcement and physics ___ 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
Re: [amsat-bb] AO-51
Well, I guess you never know -- it's happened before. Kevin/WB5RUE -Original Message- From: Andrew Glasbrenner [mailto:glasbren...@mindspring.com] Sent: Monday, August 18, 2014 8:44 AM To: Kevin Muenzler,WB5RUE; 'AMSAT BB' Subject: Re: [amsat-bb] AO-51 AO-51 remains non-operational. We still try to restart her occasionally, in case a cell opens, but that isn't likely. Here's the original announcement from 2+ years ago: http://amsat.org/pipermail/ans/2011/000571.html The good news is at least two Fox-1 sats will launch next year, both carrying Mode B FM repeaters, as well as at least one camera and several university experiments. There are several ways to donate to the program at http://www.amsat.org/ 73, Drew KO4MA -Original Message- From: Kevin Muenzler, WB5RUE ke...@eaglecreekobservatory.org Sent: Aug 18, 2014 9:27 AM To: 'AMSAT BB' amsat-bb@amsat.org Subject: [amsat-bb] AO-51 What's the status of AO-51? I've read that it's dead and I've also read that people are still using it. Thanks, Kevin Muenzler, WB5RUE Grid-EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I'd be unstoppable if it weren't for law enforcement and physics ___ 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] AO-51-SO-50
I remember someone saying something about the old earlybird AO-51 passess and that now all we have at night is SO-50... I was thinking of staying up late this weekend to see if there might be some earlybirds on the 50??? I do not have all that great a station and no rotator as of yet but if there is some activity that would be great, considering the time difference I might meet some new grids/people and if not I always enjoy saying hello to those I have worked many times before! :) Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 end of mission
AO-51 will be remebered to me as I am sure some of those great old birds were for the ones that have been around long enough... I hope that one day I will be able to talk on something of that caliber from the stories I hear. Anyway I always enjoyed every contact and sure miss stayin up all night to catch the early bird! Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 End of Mission
If I may, in name of the Amateur Radio Satellite followers here in Puerto Rico, say thanks for the team and their efforts for maintaining as long as possible the operation of ECHO, nice little satellite which you know was on AOS by the fading of the noise. With it I could work from Brazil up to Canada withh all the limitations of a mountain to my north, even worked Drew on his Caribbean ventures. Field Days, JOTAS, special events and all, it gave us the taste to work fellow hams and different grids. And, I rarely used more than 1/2 watt for the QSO's. Gracias Echo de Angel Santana - WP3GW and fellow KP4s ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 end of mission
It is with a heavy heart I report that AO-51 has ceased transmission and is not responding to commands. The last telemetry data indicated that the third of six batteries was approaching failure to short, and observations indicate the voltage from three cells is insufficient to power the UHF transmitters. The IHU may continue to be operative. Initial tests with the S band transmitter were also not positive, although more attempts are in order. We have tried leaving the satellite in an expected state where if voltages climb high enough, the 435.150 transmitter may possibly be heard. The command team will regularly attempt communications with the satellite over the coming months (and years). There is always the possibility that a cell will open and we could once again talk to our friend while illuminated. Thanks to all who helped fund, design, build, launch, command, and operate AO-51. It's 7 year mission has been extraordinary. Please support AMSAT's Fox-1 project, and other AMSAT projects worldwide with your time and money. For the AO-51 Command Team, 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51, is there an expected state when the voltage is high enough
Hi, Thanks for reading. Is there an expected state when the voltage is high enough regarding AO-51. The reason I ask, is to listen and see if there is some life in the satellite when the voltage becomes high enough when there is full exposure after the coming eclipse periode. 73 Jan PE0SAT -- With regards PE0SAT Internet web-page http://www.pe0sat.vgnet.nl/ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 end of mission
Yes, so sad it is gone. I enjoy a lot during the few orbits I was able to work. Thank you very much to AMSAT and the command team. Regards, Raydel, CM2ESP - Este mensaje ha sido enviado mediante el servicio de correo electronico que ofrece la Federacion de Radioaficionados de Cuba a sus miembros para respaldar el cumplimiento de los objetivos de la organizacion y su politica informativa. La persona que envia este correo asume el compromiso de usar el servicio a tales fines y cumplir con las regulaciones establecidas ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51, RIP
Thank you to all involved with the creation and maintenance of AO-51 - for darned near 40,000 orbits of pure joy for the benefit of amateur radio operators world-wide. 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] AO-51 Echo R.I.P.
In lieu of flowers make memorial contributions to Fox-1 http://www.amsat.org/amsat-new/fox/ E.Mike, KC8YLD Sent from my iPad ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 S band test this afternoon
I plan on testing the S band transmitter on AO-51 on the 2010Z AO-51 pass over the east coast today, and would like some volunteers to help listen for the transmitter. SDR receive capable stations would be even better since it may be considerably off frequency. I'll be commanding remotely, so will have limited receive capabilities, and do not expect to hear the UHF at all. If you could provide feedback via Skype, all the better. Please contact me directly if you can help listen. 73, Drew KO4MA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 frequency
Given the current problems with AO-51, should we be listening for a signal on 435.150 Mhz? Could another downlink, such as 435.300 MHz, get switched on randomly? 73, Ollie AJ1O ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 2:31PM PST 11/27/11
A great pass of AO-51 at 2:31PM PST over Southern California - and the West Coast of the U.S. ... Anyone else going to monitor/work it? I'll be online on Skype - Skype name is ... clintbradford And I'll have my cell phone outside - 909-241-7666. It is a great, middle-of-the-day pass ... If being illuminated by the Sun makes it happen, this is an ideal orbit ... Fingers crossed, Clint ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 frequency
There have been a few comments about having the control operators do this or that. Are you guys not listening or what. The thing has been on its last legs all summer after the last episode with the batteries and they had enough trouble trying to keep it going then. Seriously people, get a grip. You really think they are going to try and activate other things when they can barely keep it going as is. Did you not see the post about us being lucky its even turning back on after eclipse, enjoy it while it lasts??? Some peoples kids I swear. Kevin KF7MYK From: ol...@ollietech.com Date: Sun, 27 Nov 2011 14:16:47 -0700 To: amsat-bb@amsat.org Subject: [amsat-bb] AO-51 frequency Given the current problems with AO-51, should we be listening for a signal on 435.150 Mhz? Could another downlink, such as 435.300 MHz, get switched on randomly? 73, Ollie AJ1O ___ 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] AO-51 current status
Sometime between 1815 and 1945Z today, AO-51's IHU crashed. This happened after a few days of intermittent and unpredictable operation. Mark N8MH and I reset the satellite and started the repeater back up around ~2030Z, and lowered the output power to about 300 milliwatts. Battery voltage was low, around 4.9v, with cell 1 less than 1 volt. This is very troublesome, as the impending third cell failure will likely end our continuing operations, particularly if it fails shorted as the others have. We've also observed the transmitters cutting off around 4.7 to 4.6 volts prior to the last reset, in eclipse. We'll do what we can, but her days are short. Let me ask once again for more reports, especially from the US operators, to the oscar.dcarr.org webpage. The command stations monitor this for changes in the operation of AO-51, and while worldwide participation is good, few US operators post to it. Please support the several satellite programs worldwide, such as AMSAT-Fox, AMSAT-UK FunCube and UKCube, AMSAT-ZL Kiwisat, AMSAT-DL P3E, and others. 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Signal Strength
AO-51 is extremely weak now. Normally AO-51 would produce a signal in excess of .6 uV at the receiver in the shack. This is from a 40el KLM with a 20' 9913 pigtail and 50' of 7/8 Heliax. The maximum signal strength on the 2113z 24Nov pass (38 degree elevation) was only .22uV. It is down about 7 or 8 db from just a few days ago. As a comparison, a SO-50 pass at 2151z (6 degree max) produced .25 uV. SO-50 continues to fade severely whereas AO-51 does not exhibit that fading on Left Hand Circular. AO51 was in the sun for about 40 minutes before my AOS. The angle might not have been that great but it wasn't that close to darkness. It's getting harder to hear AO-51 now. Many stations are heard but don't respond when called. Let's hope it stays on the air. The data buzz is now heard all the time where a week ago it only appeared a minute or two before eclipse on the morning passes and was never apparent on the afternoon passes. Even with the low power it's still a great satellite. Use it while it is still working. 73, John K8YSE ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 now shutting off tx soon after eclipse
Re-post from Amsat's twitter: AO-51 now shutting off tx soon after eclipse, due to batt voltage dropping below regulator threshold. Recovers to 1w in sun. Were people still using this bird in eclipse with only 2 out of 6 usable cells? Perhaps this bird needs to be put on a schedule like AO-27. Can that be done? Richard K7LWV ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] Ao-51 at 2100z today
Well this was the first time for me to work any satellites in a really long time just wanted to day AO-51 still sounds great and i hope it stays that way for a long time. Im running a wouxon ht to an arrow on a tripod it works good but not as well at my th-d7a. Anyway just want to get some input while im writing this... I am always portable when im on the birds and can never really get my logging down so just wanted to know How everyone else goes about it?. Thanks in advance 73 de KD8ATF Sent from Yahoo! Mail on Android ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Pass@10:30 UTC
I swear I just heard some strange talking on the bird and something that sounded like a submarine pinging underwater. I thought I had Hunt for Red October on the boob tube or somethin. I heard myself on the downlink clear as day, really strong signal. I double checked my freqs and well there is no mistaking hearing yourself talk on the downlink of a satellite. Usually somebody is on these passes, but I got no response from several calls. Anyone ever experience anything like this? No I was not drinking or on anything. Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Contact
I just worked an AO-51 pass at 1957UTC and had a contact with N4HML at EL98. I am unable to find this call sign in the QRZ database. In the FCC database, that call is registered to PRESCOTT JR, RICHARD H and the status is Expired 02/27/2007 and Canceled 02/28/2009. So, either the FCC is wrong or we have a bootlegger on the sats. Can anyone confirm this? -- *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] AO-51 22:13 Today
Runnin over to DM08 AO-51 22:13 today if anyone else needs it. Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 JOTA
AO-51 to support 54th Jamboree On The Air October 15-16 The AO-51 Command Team is happy to announce support of the Scouting Jamboree On The Air (JOTA) during the weekend October 15-16, 2011. The AO-51 satellite will remain in its current configuration, with an understanding that contacts involving Scouts will be given first priority during this period. The current operating mode of AO-51 is as follows: Uplink: 145.880 MHz FM (No PL tone) Downlink: 435.150 MHz FM The World Scouting Organization in Switzerland posted JOTA information. Visit the World Scouting Radio Library. The Boy Scouts of America has several resources on-line for amateur radio stations participating in JOTA. M.C. Omar Alvarez Cárdenas Facultad de Telematica, U de C 316 1075 xe1...@ucol.mx omar...@hotmail.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] AO-51 demostration at the University of Colima
Thank so much to: K5OE CO6CBF W4HLR K7MYK KI4OTG KD6NFD K8YSE ND9M XE2BHL W0PTI AA5PK K4MOA For the QSOs during the demostration at the University of Colima. All the students start their firts class to be a hamradio so excite listened on the frecuency. Attach you a photo after the pass. Regards Omar XE1AO DK89df M.C. Omar Alvarez Cárdenas Facultad de Telematica, U de C 316 1075 xe1...@ucol.mx omar...@hotmail.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] AO-51 pass at 22:06 UTC 2011-10-01
What a shame this pass, just a few QSOs can be finished because all calling others without give a chance the complete the current QSO. What we need to fix that? I will wait for a better pass. Have a nice weekend. Omar XE1AO DK89df M.C. Omar Alvarez Cárdenas Facultad de Telematica, U de C 316 1075 xe1...@ucol.mx omar...@hotmail.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] AO-51 Scheds with Europe
I am looking to flesh out some grids, and Michael (EI3GYB) and I are running out of things to talk about. With my handheld set-up I can work reliably down to 3 deg, which brings Europe west of central Germany, the UK, and western Scandinavia into the circle during the dinner-time-Europe passes. I usually hear KB1RVT on the passes as well (and his QRZ entry has a grid map that will give you a good idea of what is possible), so you could check off two grids. So far, Amsterdam is the farthest east I have worked. AO-27 kicks into data too early to be usable. I am located in FN42IO during these passes; please feel free to drop me an email to set-up a sched while AO-51 is still kicking (and actually, has sounded much stronger this past week). (my call at Hotmail) Are there AMSAT-UK or AMSAT-DE reflectors I should post to? Bill W1PA ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 updates Re: Re: a051 frequencies
Hi John, Just yesterday I was trying to find time to type out a few AO-51 updates; this will be brief, but hopefully informative to those on the list. AO-51 is currently transmitting on 435.150 FM (LHCP) and using a 145.880 FM uplink. We expect the keep this configuration until futher notice. The power level is just under 1 watt (about 980 mW).The last restart of the satellite was something like 18 days ago!! This stretch of uninterrupted service has been great, and really just good luck. Because of the failure of one cell of the six-cell battery, the bird remains in limp mode. By that I mean we are limited to simple commanding and configurations, because a software upload/execution has proven impossible due to the lower voltages resulting from the one dead cell. At least we can set power levels manually, change uplinks/downlinks, etc. But there is no telemetry collection/storage, no BBS, etc. There is a second cell in the battery that looks sick. We have no idea if it will be the next cell to go (probable though), nor what the result will be (if we lose another cell, limp mode probably will no longer be an option, and the mission might be considered over.). It might last a few days, a few months, or who knows...a few years? (doubtful). The current scenario of AO-51 is one reason we need to keep moving AMSAT and satellite development/building/launching moving forward!! We have learned a lot already with ARISSat-1, and FOX looks promising. AMSAT needs the support of its users now more than ever... A little speculation--recently we have been looked upon kindly by the battery shorting gods. It looks like AO-51's dead cell has failed closed/shorted--which is good for this bird; and it looks like maybe ARISSat-1's battery might be failing/have failed in an open fashion--which is good for this bird! 73! Mark N8MH On Thu, Aug 18, 2011 at 12:39 PM, John Geiger aa...@fidmail.com wrote: How much power is AO51 currently running? It sure sounded good on the 2200UTC pass yesterday-much more solid receive here than I was getting for AO27 or SO 50. 73s John AA5JG - Original Message - From: Andrew Glasbrenner glasbren...@mindspring.com To: Joe gjma...@optusnet.com.au Cc: amsat-bb@amsat.org Sent: Thursday, August 18, 2011 2:49 PM Subject: [amsat-bb] Re: a051 frequencies Currently and for the foreseeable future we are on 145.88 up and 435.150 down. 73, Drew KO4MA AMSAT-NA VP Operations Sent from my iPhone On Aug 18, 2011, at 9:24 AM, Joe gjma...@optusnet.com.au wrote: I will be trying to work ao-51 during the ILLW this weekend (20-21Aug). I havent operated satellites since ao40, which is a little while ago... I will be using the usual an arrow antenna and ft60r. I am having problems finding the frequencies to tx and rx on. It seems that there have been some changes made and different sites give me different frequencies I should be using. I think the Tx is 145.880. I think the Rx frequency is 435.500. Can anyone please give me a definitive answer? I have only just got the antenna and radio working as a unit in the last 24 hours. I will be operating from Cape Schanck, just south of Melbourne Australia, under the callsign VK3EMF. Thanks Joe VK3BKI __**_ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/**listinfo/amsat-bbhttp://amsat.org/mailman/listinfo/amsat-bb __**_ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/**listinfo/amsat-bbhttp://amsat.org/mailman/listinfo/amsat-bb __**_ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/**listinfo/amsat-bbhttp://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] AO-51 Activity?
As some of you may recall, I've been doing my best to make and try various stationary antennas. It's been tough testing them since not many birds seem active, particularly AO-51 which I usually heard well. Can anyone tell me if AO-51 was functioning during the pass at around 16:30 EDT on 7/18. I haven't heard a peep out of it but have heard a few other birds. TNX Rick W2JAZ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Status
If what I just worked now on AO-51 is deteriorated performance with one dead battery cell and another failing ... Then we have the most magnificent control ops team in the biz. '51 sounded as great as ever here in DM13-land. Clint Bradford, K6LCS http://www.work-sat.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] ao-51
OMG That last pass was crazy as all get out at least she is working Thank you for your time KF1BUZ KF7LJX KF7LJV and the birds Fred N (RIP) oli. and Kilo ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 - CTCSS Being Used
In the current UPLINK 145.880 - DOWNLINK 435.150 config, is the tone of 67.0 on the TX required? 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] AO-51---please continue reporting!
Hello all, Over the last couple of days, we have been seeing some extended operational times after turning AO-51 ON. Your reports from around the world for the next few days will be especially helpful! Information about when it's ON and when it's OFF is of great interest right now and for the next few days. The best place to let everybody know is here: http://oscar.dcarr.org/ Thanks! -- 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] AO-51 L/U
In the scheme of things, will AO-51 be in L/U voice mode anytime soon? If so has those UP and Down link frequencies changed? Thanks, LOUIS, KD5GM in EL29kq CW, The original digital mode AMSAT #37061: FIST #3606 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51; Next pass over Hawaii
Aloha I plan to try the next pass of AO-51 (precluding lightening and rain). My window will be approx from 0325 local (0135Z) to about 0331L and will include Ca, Nv and a part of Utah. A good pass for Hawaii. Hope to hear anyone. AO-51 will have been out of eclipse for several minutes at that point. Mahalo Respectfully, robert, NH7WN Honolulu ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 no go
Was not heard from Kf1buz or myself on the last pass, I heard it cut out on the pass before, I got two new ones on that pass. Did anyone else hear it cuttin out? Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 coming out of eclipse over Hawaii
Hi Robert, KL7AA has a new ground station which is parking lot mobile. We deploy it occasionally and will mount it on the roof hopefully this summer. Ops N6SPP, N6PG and myself AL4S are available to qso either on the ground station or by arrow or elk handhelds. Looking forward to a KH6-KL7 sat-qso in the future. There is a link on my qrz.com webpage with a short movie on my first qso on the KL7AA ground station (Courtesy N6PG). Cheers, Rich Gillin - AL4S 907.884.1404 skype: rich.gillin Aloha Unless someone has set up a strange repeater there is absolutely no doubt AO51 was alive and well as she came out of eclipse moments ago. I was able to hear myself perfectly on the downlink (145.880 up and 435.150 down). Unfortunately, the footprint from here only touched the west coast. Had an Alaska station been on, I am sure there would have been a QSO. The signal was strong the entire pass. (Could I be missing something?). robert, NH7WN Honolulu, HI ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 over Hawaii
Aloha all Sorry for the delay re: the last 51 pass over Hawaii. Unfortunately, nothing heard. As I was in the field with the VX-7R I did not have duplex capabilities as yesterday with my ground station. However, I heard no quieting nor stations on the west coast. I assume AO-51 was off. Yesterday was a different story. The bird was strong. Tomorrow's another day. 73 and a great weekend to all de robert, NH7WN Honolulu, Hawaii ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 coming out of eclipse over Hawaii
Aloha Unless someone has set up a strange repeater there is absolutely no doubt AO51 was alive and well as she came out of eclipse moments ago. I was able to hear myself perfectly on the downlink (145.880 up and 435.150 down). Unfortunately, the footprint from here only touched the west coast. Had an Alaska station been on, I am sure there would have been a QSO. The signal was strong the entire pass. (Could I be missing something?). robert, NH7WN Honolulu, HI ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 over Hawaii
ALOHA Nothing heard from AO-51 on 145.150 up, 435.880 down (hope those are the right freqs). AO-51 was coming out of eclipse having crossed over the south pacific. High pass. 73 robert, NH7WN Honolulu ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] ao=-51
Drew the bird was operating at 04:30 cst today Keeping my fingers crossed nick Office 337 593 8700 Cell 337 258 2527 Helping UL become a world Class Engineering and Educational School ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 reports needed, especially from within eclipse
AO-51's computer has been running for over 5 hours now. We have left the satellite in repeater mode 145.88/435.15 for the time being, at over 2 watts. We are very surprised by this development to say the least. Without Whole Orbit Data we are flying a bit blind, so would really like to know what the satellite is doing in eclipse. I'm assuming the transmitter is cutting out, but who knows? Cell 3 is reporting 0.0 volts, so it's clear it has shorted completely. Please, everyone, everywhere, listen to 435.150 the next 24 hours and send your reports to me or to the -bb. Southern hemisphere observations are most very welcome. 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] AO 51
AO-51 heard at 2040 utc. Uplink 145.880 Downlink 435.150. No one else on the bird. Just heard my own downlink. I heard downlink but was on 145.920 for uplink. When switched frequencies I could hear my down link signal. Dale/ KL7XJ BP40kl ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 QRM gone?, back to .88 up
Thanks to many folks, especially K8YSE and KE4KOL, it looks like we may have scared off whomever was squatting on the 880 uplink. Starting this afternoon we will give it another try, 145.880 up, and 435.150 down. This was the most common uplink historically with this downlink, so I'd like for it to be the default in these post-battery failure operations. 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] ***AO-51 reports needed*** 27 May 2011
Hello AO-51 users, This afternoon 27 May 2011 AO-51 stayed ON for a full orbit. This caught both me and Drew KO4MA quite by surprise. It is completely unexpected. Had both of us not been there, we wouldn't have believed it KO4MA put it into repeater mode around 2000utc. When it came back over around 2145utc it was still up and in repeater mode!! We changed to digital mode to collect some telemetry and have left it in digital mode. **WE NEED REPORTS** in case it remains on next orbit (neither of us get another pass until tomorrow). You can listen on 435.150 MHz for the digital signal. IF you have 9600 baud packet and TLMEcho, you might be able to grab some telemetry that will be useful for us. Stay tuned! This might be a fluke, or it might be a good sign... Please send your email reports to the list and directly to us using our callsigns AT AMSAT.org. 73, 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] AO-51
Was there people on that pass? It was pretty low for me, I was getting a signal on the down, but no people, I tried a couple times, I am pretty sure it was the bird because the signal faded away as usual. Anyway my friend KF1BUZ is heading to DN00 Black Rock Desert as I write this. I do not have that grid, just thought if anyone needed it that you might listen for him. Hope to catch some of you this weekend, thanks again to all who make it possible! Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 - good telemetery 2328Z pass
Currently receiving good telemetry – will forward the csv file to N8MH KO4MAE. 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] AO-51 now off
Well, she crashed again. This time we restarted, and then killed the transmitter before AOS. In an hour we'll know if it makes it through with the transmitter off. If so, we'll start reloading code in the AM. Thanks to those who sent telemetry and reports. For now you can take a break, and we'll let you know when to listen again. 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] AO-51 Status
... we'll try using 145.920 as the uplink this weekend ... What frequencies is the control team attempting to load for this week? 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] AO-51 Status
It is so hard to accept that AO-51 is failing when is sounds SO DARNED GOOD as it is right now over the Western United States. THANK YOU, AO-51 Control Team members. 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] AO-51 Status
I am not sure if there is a formal alliance 'tween AMSAT, the AO-51 control team, and this Web site ... http://oscar.dcarr.org/ ... but it sure would seem helpful if all signal reports for AO-51 were entered there! Clint, 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] AO-51
I got to talk on the AO-51 today was pretty neat! Sorry for my bad performance, I was using the Elk, handheld for the first time and probably should not practice on that bird. I dont know how you guys do it, my arm was all getting tired, gotta be a better way to do that. Camera tripod or something? Also I was receiving it on the western pass, but there was no one there. Unless I was picking up something else on that frequency...Is it on all the time now? Will it be on this morning? I thought you guys were turning it on and off? Anyway, thanks to all who do the work, something about talking on the satellite's, I love it every time! Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 WELCOME BACK
AO-51 is back, was nice surprise see the bird active again on the QRP repeater. Heard several stations saounding like nice music to my ears. Congratulations to all AO-51 team and the stations whom participate in any way to achive the comeback of this nice bird. Bert / XE1FZE - DL80 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51, on old friend.
Clint, AO-51 has been in many ways like a faithful old dog. Almost always there, and one you can trust with the kids. Every now and then it runs off for a few days, starts yapping and bothers the neighbors, or makes a mess on the rug. Still, just when you start to get annoyed, it gives you a big, wet kiss and all is forgiven. Sadly Dog Years and Satellite Years are about the same, and AO-51 is getting along. Others have lived longer, such as SO-50, and of course the magical AO-7, but few have given so much pleasure to so many with such simple equipment. Heck, even the critics have enjoyed grousing about Gridsats. I know I have. ;) When we finally lose an old dog, we mourn, but eventually we find a frisky new furry friend whom we learn to love, and eventually regard their quirks with affection, if not exactly delight. So it is with satellites. The Fox Project is getting into high gear, with a laundry list of lessons learned going into the engineering blender. Much like laws and sausage, the process is messy, but out will come a new, challenging satellite. We even have a new Fox PayPal contribution button on the AMSAT Fox page for you to exercise. ;) So lets remember AO-51 with affection, but look forward to the future. There is room there for LEO, MEO, HEO, and GSO. 73s, Alan WA4SCA -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Clint Bradford Sent: Friday, May 06, 2011 4:50 PM To: AMSAT BB Subject: [amsat-bb] Re: AO-51 Data ... you can't ... shouldn't ... don't go out any buy anything just for this ... Heavy sigh. It's just that this has been such a good friend ... Guess I picked the wrong week to stop drinking Pina Coladas. Long live AO-51. I have a 67 degree elevation pass coming up in 30 mins ... Clint, 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 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 - Requiem
... because since 2004 when AO-51 was operational a lot of Hams invested a lot of money to buy FM hand held equipments, Arrow antennas and ELK antennas to work ... Huh? 2004 was the year the Yaesu FT-60R was released. For under $200. The Kenwood TH-D7 was available - always a battery hog, but expensive due to its TNC/APRS capabilities. To say that we blew our collective wads on hand held equipment for working FM birds doesn't make sense to me. And I was working at the US' largest ham radio equipment dealer then: that phenomenon did not occur. ... if AO-51 will be in trouble for a long time and if a similar satellite will not replace it than a lot of money all around the world has been invested in FM equipment for very small ... The equipment purchased to work the FM sats covers the two most popular voice bands in the US, if not the planet. There's no handheld equipment that is exclusively made for sat work. ... The situation for the linear satellite users is very bad as well because HO-68 was only activated for a limited numbar of orbits ... I do not understand why some folks are so hot for '68. Its primary mission was never going to be amateur radio. It is run by the Chinese, who could really care less about what we would like to see happen with it. (Sorry, my wife has been to Tibet three times in the past five years, and has some really illustrative stories on how obscenely the Chinese treat some very peaceful people.) The Chinese projects have little or no interest for me. ... I don't have any information about the Fox project ... Right at the top of the AMSAT-org Web site you will find ... http://www.amsat.org/amsat-new/fox/ ... I wanted a HEO so bad! When I win the lottery, we'll have a geo-synchronous bird above North America ... Clint, 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] AO-51 troubles
All, We are having a difficult time trying to restore AO-51 to operation. Currently, the satellite will not retain the upload of the flight software across eclipse. The batteries are in very poor condition. We have a few more things to try, but with eclipses peaking around July at ~27 minutes, the long term situation is grim. There is a brief period around November where eclipses are as short as 16 minutes, but past that it is a long climb to 30 minutes or longer eclipses for many years. We have no expected return to service date. If you have 9k6 digital capability, you can listen in on our attempts at recovery on 435.150 on many passes over the US. Please support AMSAT-NA and the other AMSAT groups around the world, and help us get new satellites into orbit. Projects like Fox, FunCube, P3E, and Kiwisat need your financial support to keep our amateur satellite fleet flying. 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Data
... If you have 9k6 digital capability, you can listen in on our attempts at recovery on 435.150 on many passes over the US. ... I am packet-illiterate. But HRO locally does not have the Yaesu mic cable in stock to interface any of the West Mountain RigBlaster products I could purchase for my Yaesu FT-8800. How else can I attempt to monitor this? HRO is open four more hours today ... Clint, K6LCS 909-241-7666 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Monitoring ..
Listening in on the 05/06/2011 - 2250Z 435.150 with 9.6K capability -- Nothing heard -- no carrier detected .. probably not a good sign - WA3SWJ ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Over West Coast
Was anything attempted that normally would have been heard on 435.150 just now (5PM PDT)? Nothing was heard ... It is scary being so attached to an inanimate object that I have never been any closer than 500 miles. Clint ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 crash 3 May 2011
Hi All, This morning we have confirmed that the software on AO-51 has crashed. I was able to get it turned ON (and then back off), so we aren't lost in space. Software reloading should commence this afternoon. Expect this to take a few days, given that it's a gradual process and a work week. We'll let you know when the reload is complete. 73, 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] AO-51
Has it been 24 hours? This afternoon maybe? Are we there yet? Kevin KF7MYK ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 reported down 27 April 2011 1200utc
Hello AO-51 Users, We are receiving reports that AO-51 is down. It will be several hours until a command station is in the footprint. We'll do try and get it active as soon as possible. 73, -- 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] AO-51 reported down 27 April 2011 1200utc
Hi All, You know, I feel so guilty... After goodness knows how many years, I decided to try satellite work again. I read around, I took advice, and I purchased a nice new Kenwood TH-D72. It arrived a couple of weeks ago, so I took it with me on vacation, programmed the memories for Doppler and persuaded my XYL that what she really wanted to do each afternoon of her holiday was listen to AO-51 passes... That was fine. Using just the rubber duck, I copied every pass without trouble and no divorce proceedings ensued. She's very tolerant after all these years... We then returned home to find the shiny new Elk that I'd ordered from AMSAT-UK waiting for me. Eagerly, I screwed my courage to the sticking point and attempted to work the bird. (Without a great deal of success, I have to admit, hopefully because the only two chances I've had so far have been Sunday afternoons, when every amateur in Europe seems to be on..) But, horror of horrors! As soon as I pointed my Elk at AO-51, this BBS started filling up with messages about how the bird was going down all the while! I'm sorry, folks. I know it was my fault. I really meant to take my Evil Genius' Prototype Satellite Killing Death Ray out of circuit before transmitting. It was a honest mistake that could have happened to anybody I promise not to do it again... :-) 73 Nick MW0JGE P.S. Seriously, many thanks to all those who labour long and hard to make satellites available to the likes of me. It is much appreciated. --- Date: Wed, 27 Apr 2011 09:11:19 -0400 From: Mark L. Hammond marklhamm...@gmail.com Subject: [amsat-bb] AO-51 reported down 27 April 2011 1200utc To: Amsat - BBs amsat-bb@amsat.org Message-ID: banlktikhdw4-emx_e9wsuhhcuzc52yc...@mail.gmail.com Content-Type: text/plain; charset=ISO-8859-1 Hello AO-51 Users, We are receiving reports that AO-51 is down. It will be several hours until a command station is in the footprint. We'll do try and get it active as soon as possible. 73, -- 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] AO-51 update 25 April 2011
Hi All, For now, it looks like the PL tone management (and changes to other settings) has helped to keep AO-51 running and supporting normal operations. We are now running around 475 mW of power out on 435.300 MHz. Over the last few days, some of you on the east coast of the U.S. have probably heard command stations downloading telemetry files on the 435.300 frequency. You can expect this to happen every few days; sometimes in the AM, sometimes in the PM. Because it's 9600 baud packet, it sounds like a carrier or open squelch with a SHH sound to it. If you hear that sound, there isn't much use in trying to uplink; it means we're collecting telemetry and the voice repeater is off for the moment. Wait for the SSSHHH sound to go away, and you'll know the voice repeater is active again. The current power budget makes it very hard to run both transmitters at the same time. Also, we are trying to keep the amount of commanding to a minimum, so using the single transmitter for both voice and telemetry is our current approach. We'll see how it goes. It does mean that it eats into voice operations a little, but the trade off is worth it-both for the short and long terms. In the meantime, keeping using our old bird when it's active! We don't want to take it for granted... 73 on behalf of the Command Team, 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] AO-51 now requires 67 Hz PL tone; activity reports appreciated
Hello AO-51 users, As you have noticed, AO-51 has recently experienced a few shutdowns due to a low battery voltage trip. This is because of increasing eclipses (now at 20 mins per orbit and increasing), poor sun angles (still getting worse), and a weak battery. We are now using the 67 Hz PL tone required mode in order to turn the transmitter(s) OFF when not in use. The transmitter power is down to about 550 mW. We will continue adjusting various parameters, including transmitter power, trigger voltages, etc. in order to keep the battery temperatures reasonable. Keep in mind that the power management feature keeps the transmitter(s) OFF during eclipses, so you can't bring it up even with a PL tone while the satellite is in eclipse. Here is our current schedule, which will continue until further notice: AO-51 Schedule Mode V/U FM Voice Repeater (**67 Hz PL tone required**) Uplink: 145.880 MHz FM (Temporarily from 145.920) Downlink 435.300 MHz FM The AO-51 Command Team can use your help! 1-Please make activity reports to: http://oscar.dcarr.org/ This is very useful to all users. Until everyone knows that the 67 Hz tone is required, we might see some conflicting reports. 2-Please help spread the word about needing the 67 Hz tone! 73, -- 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] AO-51 down 1150 utc 20 April
Hi All, This morning AO-51 was down on the early AM pass. I reset it, and decreased power out. One orbit later, it is apparently down again (another battery trip). There just isn't much left in the battery. It will this afternoon before one of us (command stations) can turn it back on. It is likely that we'll be going to PL tone activation soon. Please check your radio memories and PL tones; it'll be 67 Hz once we activate it. We'll provide updates here on the BB. 73, 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] AO-51 reported silent
Hi All, We are seeing the reports that AO-51 is down (as of about 1345 utc 18 April 2011). Thank you for the notification. Hopefully it's just another battery trip event. I'll do my best to get it going during the 2100 utc pass today. -- 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] AO-51 is working fine-My First Satellite QSO Ever!
Congratulations Steve !. Get ready ! its an Never-Ending Bug ! I got Bit back in 1974 ! and I still get as excited today, as I did back then (almost!) Welcome to the fraternity! Gud lk and happy passes! de Ellis Wa1rks. ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 apparently down
Hello All, We are receiving reports that AO-51 appears to be down. Hopefully one of us can get it going again this afternoon/evening. Eclipses are still getting longer, and the sun angle is getting worse, too. It probably has experienced a low battery trip (least we hope it's that simple...) Please watch and post on http://oscar.dcarr.org/ 73, -- 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] AO-51 is Working Fine - My First Satellite QSO Ever!
I am so excited right now that I can barely type because I'm dancing a jig. AO-51 was working fine for the 2158Z, 4-13-2011 pass over my QTH (EM95md) during which I made my FIRST successful satellite QSO ever with K8YSE. Thank You K8YSE!! My apologies to K8YSE for getting a bit tongue-tied but I was so excited to hear him repeat my call sign back and ask for the QSL that I about swallowed the microphone :-) What makes it even better was the fact that I make it a point of recording the passes so I have an audio recording of my first AO-51 QSO. A big thanks to K6LCS (Clint) and his web site http://web.me.com/clintbradford/k6lcs/Home.html for all the tips and inspiration to give satellites a try. WooHoo!! 73, Steve KJ4FEL ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 uplink
The AO-51 repeater uplink was switched to 145.88 on the 2215 pass tonight. I realize there are multiple grid dxpeditions out and about, but that does not excuse some of the operating I heard tonight. If another station is in the middle of a QSO, stand by and let them finish. If you start to transmit and can't hear yourself, or you hear someone else in the downlink, stop transmitting and let them make the call. Finally, if you've worked that grid, or that station, or that country, how about taking a breather and letting someone else work it for a new one. 73, Drew KO4MA AMSAT VP Operations, and AO-51 Command Station ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 - Idaho Repeater QRM on uplink?
Hi Everyone, I just thought I'd relay a bit of QRM I observed on AO-51 on this morning's 3/16/2011 1322z pass. The bird was totally quiet (just a nice carrier) for the first 5 minutes of the pass, but then it sounded like a repeater was getting into the sat uplink: 3/16 1327z: Connected, KD7QAF repeater. 3/16 1328z: KD7QAF repeater disconnected. 3/16 1328z: hey Stacy did I see you at the corner there by Wendys? 3/16 1330z: ...repeater in Middleton, Idaho. Pretty minor as far as QRM goes, but I just wanted to flag it up in case anyone knows of a KD7QAF repeater (call might have been KD7QAN?) that's got an output near 145.920. Might be worth letting them know they're getting into a sat. Also had a nice chat with Kerry WC7V on the same pass -- I'd forgotten how nice it is to work AO-51 on the early morning passes, it's a fantastic satellite!!! The morning passes aren't crowded at all, and '51 has such beautiful clear audio and great coverage. 73 de Dave KB5WIA / CM88 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 mode change 16 March 2120utc
Hi All, The power budget on AO-51 has really been stretched with both transmitters on, so we are now in single transmitter mode. That means quite a bit more power on 435.300 (the voice repeater), which is now around 1.3W or so. We'll be in this mode for a while (until further notice). You'll probably still hear the transmitter cycling OFF and ON around eclipse times. But most voice users will appreciate the stronger signals. 73, 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] AO-51 update 15 March 2011
Hi All, This is a quick note to let you know that eclipses are back for AO-51, and the length is increasing every day. Eclipses are now ;asting about 1-2 mins per pass, and it goes up pretty fast, gaining a minute every day or two. They will become rather long in the coming weeks/months (as long as 20 mins or more as I recall). Interested people should download and run DK3WN's Illum program to see what lies ahead for AO-51. We are still running power management; that means the transmitters will be OFF during eclipses (and probably right before, and soon after). The 435.300 transmitter is currently around 420 mW.The balancing (juggling??) act between sunlight, transmitter power, spacecraft temperature, and aging batteries continues... 73 on behalf of the command team, -- 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] AO-51 update - Thanks
I would like to say Thank You to all who manage AO-51 and all of the other Amateur Radio Satellites. I am new to satellites but not new to Amateur Radio. I recently celebrated 50 years as a Ham and my first contact via a satellite. My first contact via AO-51 brought back so many memories of my first contact as a Novice at 11 years old. When I mentioned that I was making my first contact via satellite, the users that afternoon welcomed me with open arms and I soon had stations calling me as a #2, a #3, and even a #4 contact. Everyone was so forgiving of my excitement with getting calls mixed up, unbelievable phonetics, and probably poor operating etiquette. There is nothing more exciting than to hear your call coming through the satellite after you get enough nerve to transmit. I listened for at least 100 passes before I dared hit the transmit switch. After all the listening, I still probably got it all mixed up. To me this was the ultimate stage fright! Thank you again to all involved. You gave me an opportunity to add another day in my life that I will never forget. What a great hobby we have 73's and 88's to all! James WA5AOO EL29 ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 still cannot access
Hi, Today at about 15:00 pm i had a good pass of AO-51 but as usual i could'nt get in. I've tried during the whole pass to tx on the uplink frequencies moving a bit up and down but nothing to do, i did not get any response. I have tried with two TNC with a TINY-2 and with a TNC3S but had the same result. I saw in the queue for the whole pass OZ7SAT. I would like to know which is the correct frequency to TX. Unfortunately i do not know and also cannot find OZ7SAT's email address so if he read this message can please email me the correct frequency. Any help will be really appreciated. 73's de Enzo IK8OZV Inviato da iPhone ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 reports indicate transmitter(s) are OFF
Hi All, We are receiving and reading multiple reports that AO-51 is OFF, since about 1400 utc today. Additional reports will be appreciated, especially to note if the 435.150 transmitter is active or not; if ON, it should be in 9k6 packet mode. http://oscar.dcarr.org/ It will be a few more hours (around 2100utc) before the bird is in the footprint of a command station, so we'll hope for the best (a quick reset after a voltage trip). 73, -- 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] AO-51 back on
Back to normal as of 2055Z or so. Reports to oscar.dcarr.org are appreciated. 73, Drew KO4MA AMSAT-NA VP Operations On 3/9/2011 11:16 AM, Mark L. Hammond wrote: Hi All, We are receiving and reading multiple reports that AO-51 is OFF, since about 1400 utc today. Additional reports will be appreciated, especially to note if the 435.150 transmitter is active or not; if ON, it should be in 9k6 packet mode. http://oscar.dcarr.org/ It will be a few more hours (around 2100utc) before the bird is in the footprint of a command station, so we'll hope for the best (a quick reset after a voltage trip). 73, ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 and L/U PacSat BBS Mode
Hi Folks, I am trying the bird on: 9k6 BBS and Telemetry. Does it work? With the MSPE I can just receive numbers like: B:44253341 What does it mean? I am trying to request the DIR on 1268.700 MHz, but I do not get any response. On the upper side of the MSPE program often I can read: Frames Heard from PACB-1 I am asking this because I would like to see if my system still works. Is there any other Bird that I can use the 1.2 GHz Band? Any help will be really appreciated Thanks in advance. 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 *** *GSM +39 338 9749786 * *SMS +39 338 9749786 * *FAX +39 328 7244294 * ***2nd e-mail: vim...@tin.it*** *** 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 ** ***GSM +39 338 9749786*** ** SMS +39 338 9749786 ** * FAX +39 328 7244294 * *** 2nd e-mail: vim...@tin.it *** * ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Schedule revised, updates--no S-band yet!
Hi All, Helpful reports from users (about the transmitters turning OFF) and telemetry confirm that AO-51 is still seeing a few minutes of darkness every orbit. There isn't sufficient sun to allow us to turn the S-mode transmitter on yet. Drats. The current mode will continue until either 1) we have clear telemetry and we can run a day of S-band -OR- 2) we make the mode change to normal (V/U voice repeater and L/U Pacsat BBS) on March 4. 73, Mark N8MH ___ AO-51 Revised schedule: Feb 28 Dual Voice Repeaters : Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U FM Voice Repeater (no PL tone needed) Uplink: 1268.703 MHz FM Downlink 435.150 MHz FM Mode change-To Be Determined! Mode V/S Voice Repeater (no PL tone needed) Uplink: 145.880 MHz FM Downlink 2401.200 MHz FM March 4 (~0945 UTC) Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U PacSat BBS Uplink: 1268.703 MHz FSK 9k6 baud Downlink 435.150 MHz FSK 9k6 baud March 6 (~2115 UTC) Mode L/SU FM Voice Repeater (no PL tone needed) Uplink: 1268.703 MHz FM Downlink1 2401.200 MHz FM Downlink2 435.300 MHz FM (low power) March 11 (~1000 UTC) [Eclipses return around March 12/13] Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U PacSat BBS Uplink: 1268.703 MHz 9k6 baud Downlink 435.150 MHz 9k6 baud ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 S-band // WIFI USB dongle as receiver?
Hello to the AMSAT brain trust. I am new to satellites and have a new person question: Is there any way to utilize a WIFI (2.4 GHZ, 13cm) USB dongle (with SMA ant. port) into a gain antenna, and successfully receive the S-band downlink from AO-51? This is a 13cm transceiver, but I suspect the answer is no. I already have a 24db gain dish, so I thought I would ask. Outside of WIFI, is there anything useful I can do with this dongle? The more conventional units (transverters, receivers, etc.) are a bit spendy for me right now. thanks. paul ac0z ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 schedule for February, March 2011
Hello All, Here is the AO-51 schedule for the next few weeks. There is a little bit of something for everyone in here! Keep in mind that the schedule is subject to change due to power budget and/or telemetry downloading. February 21 (~2145 UTC) [Eclipses should end around Feb. 24/25] Dual Voice Repeaters : Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U FM Voice Repeater (no PL tone needed) Uplink: 1268.703 MHz FM Downlink 435.150 MHz FM February 27 (~2100 UTC) Mode V/S Voice Repeater (no PL tone needed) Uplink: 145.880 MHz FM Downlink 2401.200 MHz FM March 3 (~1030 UTC) Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U PacSat BBS Uplink: 1268.703 MHz FSK 9k6 baud Downlink 435.150 MHz FSK 9k6 baud March 6 (~2115 UTC) Mode L/SU FM Voice Repeater (no PL tone needed) Uplink: 1268.703 MHz FM Downlink1 2401.200 MHz FM Downlink2 435.300 MHz FM (low power) March 11 (~1000 UTC) [Eclipses return around March 12/13] Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U PacSat BBS Uplink: 1268.703 MHz 9k6 baud Downlink 435.150 MHz 9k6 baud As always, command stations may need to reconfigure modes in order to collect telemetry as needed. Remember that power management may be running, and the transmitter(s) will shut OFF during periods of eclipse and/or low battery voltage. 73, Mark N8MH AO-51 Command Team ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 mode change 21 Feb 2011 2145utc
Hello All, Power up that L-band transmitter! AO-51 is about 2 days away from full sun. On-board temperatures are climbing, and it looks like we have just enough power to try to run both repeaters. It will take some tweaking of various power management parameters, and we'll see how things go. Right now 435.300 is at 420mW and 435.150 is at 300mW. Expect interruptions for telemetry collection by command stations; we'll try to keep the impact down to a minimum. You may also see the transmitters shutting off as we run right on the edge of the power budget. They should come back on when the batteries get a bit more juice in them. Both transmitters will be off during eclipses (which won't last much longer). We'll probably run dual repeaters until Sunday 27 Feb 2011. There is only about 3 weeks of full sun, then eclipses return. Dust off your S-band downconverters and antennas! We'll try to fit in some S-band activity before eclipses return (approx. 14 March or so). As of 21 Feb 2011 2145utc: Dual Voice Repeaters Mode V/U FM Voice Repeater (no PL tone needed) Uplink: 145.920 MHz FM Downlink 435.300 MHz FM Mode L/U FM Voice Repeater (no PL tone needed) Uplink: 1268.700 MHz FM Downlink 435.150 MHz FM On behalf of the command team, 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] AO-51 may have crashed...
We'll look into it on the first available pass. 73, Drew KO4MA AMSAT VP Operations ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 back on
Luckily, it was a simple issue. Please post your reports to oscar.dcarr.org through the weekend, it really helps the command team. 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] AO-51 status on AMSAT.org page
Question for the group. The AO-51 status on the AMSAT.org status page shows AO-51 to have a HF component that is operational. Reading about the satellite and some of the related links I found mentioned something about a 10m uplink budget but no additional information. All other references to the satellite make no mention of any HF component. Does AO51 have a HF uplink or downlink? Scott AA5AM ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 SSB uplink
What if we tried using SSB on the uplink and FM on the downlink as an experiment sometime. If the uplink passband was left a little wide, several stations could still be intelligible at once, assuming they weren't on the exact same frequency, not to mention a cw signal or two off to the edges. The DSP between the ears can work pretty good at separating signals sometimes. Not a good mode for handheld operation but may be worth a try just to see how well it works.. Howie AB2S ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51
I have to agree with the others regarding the mis-use of AO-51. I don't get on there every pass but the other day was ridiculous. I thought it was CH19. There is absolutely no respect. Another gripe I have are those who work every pass and contact the same people each pass. That makes it very crowded. I would suggest listening for new calls and grid squares. As the satellites get more and more publicity, new people will be coming on board. Perhaps there operating skills are not as good as yours, but they have a right to make contacts. Check your log books and if you have worked someone, give another person a chance to work them. There were several new calls for me the other day but it was so bad that I just shut it down. Is ham radio joining the ranks of the general populous and losing our civility? It sure seems like it. 73, W8KRF ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 sees solar eclipse was Re: Re: AO7 mode B
Yes, check this image out: http://www.amsat.org/amsat/ftp/telemetry/ao51/2011WOD/Jan2011/Wd010300_during_solar_eclipse2.pdf You can see the normal eclipses of AO-51 every 100 mins (just over 14 times each day). Now, look right in the middle--see what is a double dip?? That a normal eclipse AND an extra one from the partial solar eclipse! Neat to see in telemetry...actually, look closer and you'll see there were around 2 or 3 double dips...peak eclipse was just before 0900utc that day, and that's where the biggest drop was observed. Anyhow, FYI :) 73! Mark N8MH At 04:22 PM 1/5/2011 -0500, Andrew Glasbrenner wrote: It's hard to say for sure, but generally any significant drop in power from the panels can cause the timer to reset. This could be from a too strong uplink, a partial or full regular orbital eclipse, or even from passing through the shadow of a solar eclipse. We just recently recorded the effect of AO-51 passing through the recent partial solar eclipse over EU. I'll have to look to see if the shift occurred coincident to that on AO-7 or not. 73, Drew KO4Ma Sent from my iPhone On Jan 5, 2011, at 3:55 PM, graham mcphee gemcp...@bigpond.com wrote: The AO7 switching time seems to have changed, can any one in the control team shed any light on the subject please Graham VK2AYE ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb Mark L. Hammond [N8MH] ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Reports--thank you!!
Thank you all for the increased frequency of reporting on http://oscar.dcarr.org/ . It is very helpful! Your continued support is appreciated... 73, Mark L. Hammond [N8MH] ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 @ 9k6
Hi to the list, reading on the amsat web as the status of AO-51 i can read: By command only: 9k6 Baud Telemetry Downlink: 435.150 MHz FM at 9600 baud What does it mean? Should we have to activate it? If yes how? Thanks in advance 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 ** ***GSM +39 338 9749786*** ** SMS +39 338 9749786 ** * FAX +39 328 7244294 * *** 2nd e-mail: vim...@tin.it *** * ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Status
Confirming this possibly OFF during eclipse periods is NOT a situation where we can use a 67.0 tone to turn it ON for two minutes. This is a harder-coded off period - is that correct? Clint, K6LCS ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 update 28 Dec 2010 2315utc
Hi All, This evening we shut down the digital transmitter TXA (435.150). This is due to less sun (we are on the edge of eclipse). I suspect we'll be keeping TXA off for the most part, except to collect telemetry. We'll do our best to keep 435.300 running as much as possible. 73, Mark L. Hammond [N8MH] ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 update 26 Dec 2010 2115utc
Hi All, This afternoon the power management function of AO-51 was turned ON, in anticipation of eclipses in just a few days. You might see the transmitter power levels go UP and DOWN a bit as the battery voltage changes. We'll make some adjustments and tweaks to keep it from going UP and DOWN too often--but it's the way it's gonna work. In a few weeks we expect transmitter(s) to be OFF while in eclipse and ON when in the sun. Expect adjustments and various power management schemes from now until the end of February when we'll again see full sunlight for a brief period (few short months as I recall). We'll do our best to keep you informed via the BBS and the AO-51 webpage. On behalf of the Command Team, Mark L. Hammond [N8MH] ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 2M PBBS uplink active
Hello All, Just now I switched the uplink on the AO-51 PBBS to 145.860 (the schedule called for L-band uplink). We hope to leave it there until the next scheduled mode change. Hopefully we'll see some more activity on the bird :) Merry Christmas and 73! Mark L. Hammond [N8MH] ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Mode change complete
Hi All, We are back in normal mode as of about 20:30utc 22 Dec 2010--but the L-band uplink to the PBBS is OFF for a bit so that we can try to catch up on the download of whole orbit data that has been accumulating during the S-band period. It might remain off for a day or so, we'll see. We are very soon entering eclipse periods. As always, watch for announcements about any schedule changes, etc. Next scheduled mode change is for Straight Key Night--which is just about when eclipses start! December 22 (late UTC) FM Repeater, V/U Uplink: 145.920 MHz FM (no PL tone) Downlink: 435.300 MHz FM 9k6 Baud PBBS Operations, L/U Uplink: 1268.705 MHz FM at 9600 baud Downlink: 435.150 MHz FM at 9600 baud December 30 (late UTC) CW/FM Repeater, V/U For Straight Key Night Uplink: 145.880 MHz CW Downlink: 435.300 MHz CW over FM 9k6 Baud Telemetry Downlink: 435.150 MHz FM at 9600 baud 73, Mark L. Hammond [N8MH] ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 S-Band antenna polarization
Does anyone know the polarization of the 2.4 GHz transmissions from AO-51. Are they circular? If so which polarity, RHCP or LHCP? Are they linear? If so is there a preferred receiving polarization? I have examined the AMSAT web site and many references on the Internet, but cannot seem to find the answer. Thanks, John WA4WDL AMSAT member 10211 ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Straight Key Night CW over FM
Please could someone explain better this mode for your use on Straight Key Night for AO-51: Uplink: 145.880 MHz CW (is this A1 ?) Downlink: 435.300 MHz CW over FM (is this A2 over FM ?) Thanks ! ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 pass 1230UTC 12/2
Hello all, I was attempting to make some contacts on the 1230UTC pass of AO-51 this morning, from the mobile on my way to work. We have a bit of a commuter roundtable on 2m in the morning and I invited some of the others to tune in to see what we could hear. The downlink was weak enough that the pass was at best barely workable, but right at the beginning I did have a good enough signal to copy that a station came back to my call. I didn't copy the call though, so it was not a contact but it appears that I was heard well enough on the uplink... so I would appreciate it if the station(s) who heard me would let me know what my uplink signal quality was, that I can determine whether it's worth it to try to work the bird again during a commute pass. If so maybe I'll consider a preamp in the mobile... ;-) And if the uplink was OK then perhaps on some future closer passes I'll have the opportunity to get some of my fellow commuters on the bird! Thanks and 73, Jerry N0JY ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
[amsat-bb] AO-51 Mode L/S Mobile (thanks, guys)
Working satellites has always been a blast, especially when pushing the envelope in either technology, skill, or simply practicality. I was eager to work mode L/S mobile, not having worked that mode since I was in Darwin, NT (VK8OE, 1995)... and then I had a small dish and a TS-2000 in my SUV. It was easy, as I had full duplex, but there was nobody to talk to since the bird was mostly over the Indian Ocean! Now 5 years later and I am back in South Texas and missing that thrill from a you can't do that challenge. In my truck I have an FT-100. This rig worked mode V/S easily this past summer when I was visiting the US (I was P29OE then). The 2.4 gHz downlink was with an old 10-turn helix (my very first mode-S antenna, used to listen to Oscar-11), a TSI 3731 downconverter to 2 m and a Hamtronics 10 m downconverter. This arrangement allowed me to use the 2 m uplink from the FT-100, albeit in split mode (not full duplex). This mode was loud and easy. N5UXT, Angelo, was my first V/S contact, followed by N5AFV, Allen. Mode L/S required a little more hardware. I used an old MML trippler (varacter diode) I bought on ebay in the 90's for about $20. My uplink on 422.902 with about 10 W out didn't work well yesterday into my 2m/70cm vertical, so today I changed it out for a old (everything I have is old) home brew dual-band patch feed leftover from an AO-40 antenna (that same 18 DSS dish I took to Australia). Even though the downlink and uplink are both LHCP, they worked well enough on today's western pass of 20 degrees (from EL29) to make contact with K4YYL, AK5V, and N5UXT (again!). Thanks, guys. I know I was off frequency as I was guessing at the uplink frequency based on the downlink Doppler, dividing it in half then dividing that by 3... and all the while changing and hanging my arm out the truck window with a handful of gear! I appreciate you guys coming back to me. It's good to be home in Texas, it's good to work a satellite, and it's great to have such a frequncy agile bird to ! play with! I can't wait to get the shack set up this winter (the ARRL 10 m contest is just around the corner). 73, Jerry, K5OE ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
