September 2008 - AMSAT-BB - mailman.amsat.org

Re: AO-51
by David 07 Sep '08

07 Sep '08

A-ha, thanks Drew! That explains it - I misread the schedule as meaning local time in which case it would change tomorrow! I will be mindful of this in the future! All the best 73 David KG4ZLB Sent from my iPod On Sep 7, 2008, at 20:25, "Andrew Glasbrenner" <glasbrenner(a)mindspring.com> wrote: It was just the scheduled mode change. See http://www.amsat.org/amsat-new/echo/CTNews.php . 73, Drew KO4MA ----- Original Message ----- From: "David - KG4ZLB/MØZLB" <m0zlb(a)btinternet.com> To: <amsat-bb(a)amsat.org> Sent: Sunday, September 07, 2008 8:14 PM Subject: [amsat-bb] AO-51 I do hope that I just pressed a wrong button but I was listening to the downlink on AO-51 during the 23:31/41 utc pass and halfway through the pass (I copied P9HA, YY6IEA and W6NVE) I lost the downlink compeletly and I just had the normal static - was this my error or has the software taken a dump again? David KG4ZLB _______________________________________________ Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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Re: [sarex] ARISS Clarification--Please Read
by Luc Leblanc 07 Sep '08

07 Sep '08

On 6 Sep 2008 at 22:05, Frank H. Bauer wrote: > All, > > In the past 24 hours, two e-mail "Press Releases" were sent out by Miles > Mann, WF1F, about ARISS related activities. Please ignore these e-mails as > they are not totally accurate and Miles was given direction to not release > this information. Too bad that was the most refreshing news in the amateur satellite community in years! Just hope to know when something will be totally accurate as the author also does? "-" http://www.peteyandpetunia.com/VoteHere/VoteHere.htm Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe WAC BASIC CW PHONE SATELLITE

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CP4 Faulty Voltage Sensor Fully Characterized
by Jason Lionel Anderson 07 Sep '08

07 Sep '08

Fellow Hams, Thanks to all who have helped us tracked CP4 in its time of need. With the extra packets we've been able to fully characterize one of our voltage sensors as it deteriorated. This information will be helpful in predicting sensor failure for our other on board sensors. Even though CP4 is no longer in an emergency state, we still welcome and appreciate any data you can collect from CP4. Unfortunately though, CP4 seems to have reentered its brain dead state where it no longer beacons. Hopefully this problem fixes itself soon so more data can be collected. On a more positive note, we are planning to launch our next satellite CP6 near the end of this year on a Minotaur from Wallops, Virgina as a secondary to TacSat 3. Our current plan is to release data acquisition software to the community to make life for those who would like to track CP6 easier. Stay tuned for more! - Jason Anderson, KI6GIV California Polytechnic State University

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COMPASS recovery reports
by Mike Rupprecht 07 Sep '08

07 Sep '08

Hi all, I don't want to impose but I received some good COMPASS beacons from Japan. COMPASS has no reset since several eclipses and remains on! The voltage is increased to 3.67 volts and the heater is partial OFF (depends on temperature). Now it's important to observe the beacon and send the commands for changing the heater threshold. My next pass is at 1900UTC - so I am on pins and needles. I hope you'll back my plan. Thank you all for your efforts. 73, Mike DK3WN

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COMPASS beacon
by Mike Rupprecht 07 Sep '08

07 Sep '08

Hi all, just heard a very good sounding beacon from COMPASS. 07.09.2008 09:50UTC 70074030370000210100b807ff --------------------------------------------------- Solar Cell Voltage 2.20 V Solar Panel 6 Cur 43.92 mA Solar Panel 2 Cur 0.00 mA Solar Panel 3 Cur 345.10 mA Solar Panel 4 Cur 301.18 mA Solar Panel 5 Cur 401.57 mA EPS Reset Counter 0 Power Level Critical Battery Capacity Heater Active Battery Heater ON Power Safe Counter 1 Emergency Mode Counter 0 Battery Voltage 3.61 V Battery Current 43.92 mA Battery Temperature -1 °C Voltage increased and powersafe counter as well. That means no reset during the last eclipse. Can somebody try to send the commands, please ???? Thanks , 73 Mike DK3WN

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COMPASS-1 recovery efforts
by Mike Rupprecht 07 Sep '08

07 Sep '08

Hi all, Thanks for all the reports and beacons I received over the last 3 weeks. The Voltage has never climbed over 3 volts (in full sunlight). We can assume that COMPASS is totally OFF during eclipses. If COMPASS enters the sunlight she will reboot. Because the low voltage COMPASS is switching into emergency mode. That means, that CDHS (Command & Data Handling Subsystem) and ADCS (Attitude Determination and Control Subsystem) units are completely off. Unfortunately this means also, that we CAN NOT change the threshold values by commands. That's the main problem. It seems the satellite is "locked" because in emergency mode she will accept only two commands: hard reset and TX enable. Both commands are impractical for recovery. The only thing we can do is WAIT. Wait for longer sun periods and voltages over 3.47 Volts. That's the standard threshold value in emergency mode to switch into powersafe mode. Only in this mode we can change the threshold values. We may have lost a cubesat, but we've definitely got some new friends :-) Thank you all for your efforts! 73, Mike DK3WN

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Re: AT&T's DSL Internet service
by RFI-EMI-GUY 07 Sep '08

07 Sep '08

Perry; I have had recent experience with ATT DSL. About 8 months ago My wife decided to change our COMCAST cable service to an ATT DSL/DishNetwork bundle. (She did this w/out consulting me!) She was assured by ATT that the DSL service would provide the same or better than 6 gig service we were enjoying (trouble free) from Comcast. In fact ATT made a big point that using a cable modem we were sharing bandwidth (you still do with DSL upstream of the DSLAM). Truth be told, ATT could not deliver 6 gig service to our home 15,000 feet from the DSLAM. The copper network is very old and deteriorated. In fact after having troubles: 1) they wanted to downgrade the GOS, 2) They no longer offered the 6 gig GOS to my block. I also spent a lot of time rewiring the phones in the house to deal with DSL filtering issues. ATT's real reason to market the DSL/Dishnetwork bundle is to pull customers from the local cable service in anticipation of their fiber to home video service that they are slowly rolling out. I would avoid ATT DSL unless you have a DSLAM in your neighborhood and you have neighbors who are satisfied with the service. Otherwise, steer clear. Also the DishNetwork service has been a bit troublesome in performance and HD channel packages. So now I am back with Comcast for internet and stuck with Dishnetwork HDTV for 10 more months. Also ATT has blocked usenet binaries groups so if you were getting manuals, files and schematics from ABSE or similar newsgroups, you are out of business. Has anyone on the BBS had any experience with AT&T's DSL Internet service???? I will be using a Apple IMac computer and the people here in town don't seem to know anything about a Mac computer. I would also like to know if upgrading to DSL will cause any interference on my TS2000???? Perry WB8OTH-- Joe Leikhim K4SAT "The RFI-EMI-GUY"© "Treason doth never prosper: what's the reason? For if it prosper, none dare call it treason." "Follow The Money" ;-P

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Re: AMSAT-BB Digest, Vol 3, Issue 439
by Shlomo 06 Sep '08

06 Sep '08

http://amsat.org/mailman/listinfo/amsat-bb

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AT&T DSL??
by Perry Yantis 06 Sep '08

06 Sep '08

Has anyone on the BBS had any experience with AT&T's DSL Internet service???? I will be using a Apple IMac computer and the people here in town don't seem to know anything about a Mac computer. I would also like to know if upgrading to DSL will cause any interference on my TS2000???? Perry WB8OTH

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Re: ARISS Clarification--Please Read
by John Marranca, Jr 06 Sep '08

06 Sep '08

Not exactly a big shock, is it? -- _______________________________ John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006

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