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

Pass Prediction Software
by Kent R. Frazier 07 Mar '08

07 Mar '08

I'm still trying to get use to converting UTC to local time and with the upcoming change to Daylight Saving Time it is only going to get worse. Is there a prediction program that prints pass predictions with both local and UTC time? I guess I could download a few and try them out, but I thought I would ask here first. 73, Kent K5KNT -- Kent R. Frazier, K5KNT

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Re: OT?? Model Rocketry
by RFI-EMI-GUY 07 Mar '08

07 Mar '08

As it was explained to me, the altimeter is the _primary_ way he will deploy the chutes. He wants back up control for the chutes as well as some sort of contingency steering or chute release in the event the wind carries the rocket out of range. He has had one hang up on high power lines already so I suppose a cable release for the chute might be a good application. Bottom line is that he is looking for a data control platform that will accommodate receiving ground originated control messages. Any ideas?? Message: 7 Date: Thu, 6 Mar 2008 17:36:30 -0600 From: Wayne N5WD <n5wd(a)charter.net> Subject: [amsat-bb] Re: OT?? Model Rocketry To: <amsat-bb(a)amsat.org> Message-ID: <200836173630.364012@HPPAV2> Content-Type: text/plain; charset="iso-8859-1" On Wed, 5 Mar 2008 20:05:10 -0500, Ivan Galysh wrote: <snip> > >?Now for doing an uplink to deploy parachutes, maybe as a backup. > >?For safety reasons, he should use an altimeter....I would not rely > > on a comm link to deploy a parachute. I > >?would do it as a back up in case the altimeter doesn't do its job. > <snip> Not to mention that it would be darned near impossible to be able to ascertain when apogee occurs with even a medium sized rocket at one mile high - and I know that I wouldn't want to deploy my mains after my rocket has had a thousand or more feet of altitude loss from apogee - instant shred! ---------------------------------------------------------------------- R. Wayne Day N5WD n5wd(a)charter.net IRLP Node 3997 -> Lake Worth, Texas Fort Worth, Texas USA -- 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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FYI: More background noise?
by Arthur Feller 07 Mar '08

07 Mar '08

Wi-Fi Cloud Hovers over Salt Lake City See: http://spectrum.ieee.org/feb08/6025 Life is short. Be swift to love! Make haste to be kind! - Henri Frederic Amiel, philosopher and writer (1821-1881)

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FW: OL30SPACE satellite activities
by Robert Turlington 07 Mar '08

07 Mar '08

Regards Robert G8ATE From: ok1tir(a)volny.czTo: rob_g8ate(a)hotmail.comSubject: Re: OL30SPACE satellite activitiesDate: Fri, 7 Mar 2008 10:51:11 +0100 Hi Robert Station OL30SPACE will be active march 09 on the satelits VU52 and AO51. 73 Karel OK1TIR ----- Original Message ----- From: Robert Turlington To: OK1TIR Sent: Saturday, March 01, 2008 10:31 AM Subject: RE: OL30SPACE satellite activities Thats a shameRegards Robert G8ATE From: ok1tir(a)volny.czTo: rob_g8ate(a)hotmail.comSubject: OL30SPACE satellite activitiesDate: Sat, 1 Mar 2008 07:36:24 +0100 HI Robert Station OL30SPACE will be not active via amateur radio satellites. 73 Karel OK1TIR ----- Original Message ----- From: Robert Turlington To: ok1tir(a)volny.cz Sent: Sunday, February 24, 2008 11:18 AM Subject: OL30SPACE satellite activities Hi OMI understand that OL30SPACE will be active during March 08,will you be active on any of the Amateur Radio Satellites?Regards Robert G8ATE (op of special event Satellite station GB5OSO & GB1OO Messenger on the move. Text MSN to 63463 now! She said what? About who? Shameful celebrity quotes on Search Star! _________________________________________________________________ Who's friends with who and co-starred in what? http://www.searchgamesbox.com/celebrityseparation.shtml

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FW: Re: [eu-amsat] Re: Good ideas for the AO-7 log.
by John Hackett 07 Mar '08

07 Mar '08

From: archie.hackett(a)hotmail.com To: w7lrd(a)comcast.net Subject: RE: [amsat-bb] Re: [eu-amsat] Re: Good ideas for the AO-7 log. Date: Fri, 7 Mar 2008 09:38:59 +0100 Bob, Normally ... to edit your own entries you just click on the hourglass where you entered the info ... (left hand edge) ... and a new screen pops up where you can delete, edi6t, change to correct things. However ... some people have been reporting that this faqcility is not working as it should. A work-around is to make sure !!!! the *REMEMBER ME* box at the bottom of the log entry page is checked. <http://www.planetemily.com/ao7/logentry.php> (I've been asking people to correct their own incorrect entries - but quite a few don't bother). Normally, Emily sent me a cookie every December so I could administer the log, which I did for some years - but then the cookies failed to materialise and Emily disappeared. RGR re: her mailbox ... as I mentioned earlier, she's disappeared down the rabbit warren of SECOND LIFE into the 'virtual' world ... and that's the reason I keep batting these mails to the Amsat-bb ... in the hope that one day one of them might filter down the burrow and into SECOND LIFE where it might be noticed by N1DID (ex: W0EEC). I have no intention of going down there myself, I have enough to contend with in the "real" world without faffing around in a pretend world. Let me know how it goes Bob. 73 John. <la2qaa(a)amsat.org> .................................................................................... From: w7lrd(a)comcast.net To: la2qaa(a)amsat.org Subject: RE: [amsat-bb] Re: [eu-amsat] Re: Good ideas for the AO-7 log. Date: Fri, 7 Mar 2008 02:07:26 +0000 Mr John-I accidently entered VA7MG instead of my call. Then I tried to edit it out as to get the egg off my face. I got a full message saying Emily's mailbox is full and something about cookies. I believe if we were to be able to edit out our own screw ups it would make this better. Case in point this latest ooops of mine. John, is there a way we can do that? Sorry (again) 73 Bob W7LRD -- "if this were easy, everyone would be doing it"

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Kenwood TS-790A with L-band module
by Stacey E. Mills 07 Mar '08

07 Mar '08

I've listed my backup tri-band Kenwood TS-790A on Ebay, #330217737959. This includes the L-band 1.2 GHz module, modifications for 9600 bps FSK and the noise blanking modification to allow external tuner control of frequency without data loss. The unit is in like new condition. I used this unit to command AO-40 in the field and gather telemetry from sites remote to my QTH. (Yes, I still have equipment for AO-40 command capability and do try every couple of months to re-awaken AO-40. When I hear something, you will as well.) Thanks for looking. -Stacey -- _______________________________________________________________________ Stacey E. Mills, W4SM WWW: http://www.keplerian.com Charlottesville, VA PGP key: http://www.keplerian.com/key _______________________________________________________________________

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OT?? Model Rocketry
by RFI-EMI-GUY 07 Mar '08

07 Mar '08

This may be off topic? I am helping a neighbor who is just getting into high power model rocketry (Tripoli) He is interested in _two way_ telemetry with his rocket and wants the downlink for the usual sensors like altitude, GPS, XYZ-attitude etc. There are _one way_ products that provide the downlink but he also wants to be able to uplink to fire parachutes or thrusters (during descent). I am leaning toward an 900 MHz ISM solution for the RF but am stumped as to what digital platform would be most flexible (and light weight) for the communications needs. Are there any standards or better yett off the shelf products? I am open to suggestions. -- 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: Scottsdale AZ hamfest demo
by Clint Bradford 06 Mar '08

06 Mar '08

>>...I added a reference to the Elk Antennas log periodic... I was disappointed with my Elk dual-band log periodic on the FM birds - in comparison to the Arrow. And I remember giving it a fairly honest try...but was immediately struck by how "sloppy" it was in finding the satellite. Should I try it again??? Clint -------------------------------------- Clint Bradford, K6LCS / KAF3359 909-241-7666 - cell

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Second Galileo Satellite to be Launched Late April
by Trevor 06 Mar '08

06 Mar '08

BBC News report http://news.bbc.co.uk/1/hi/sci/tech/7278616.stm ---- ___________________________________________________________ Rise to the challenge for Sport Relief with Yahoo! For Good http://uk.promotions.yahoo.com/forgood/

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Re: Scottsdale AZ hamfest demo
by Clint Bradford 06 Mar '08

06 Mar '08

>As part of the AMSAT table, I am planning for 3 demonstrations via >AO-51's normal 145.920/435.300 MHz FM voice repeater during the >morning using my call WD9EWK: > >1342-1352 UTC (low, 8-degree pass to the east of the hamfest) >1519-1533 UTC (virtually overhead, 72-degree pass to the west) >1700-1708 UTC (very low, 5-degree pass to the west) I'll try to contact you!!! Clint Bradford, K6LCS P.S. - Patrick - I've updated my 4-page tutorial AO-51 with some additional references, and added Icom's grid square map to my site - http:\\www.clintbradford.com -------------------------------------- Clint Bradford, K6LCS / KAF3359 909-241-7666 - cell

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