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

Keplerians receive
by Vincenzo Mone 15 Feb '08

15 Feb '08

Hi to the list, I am having problem receiving the keplerians in from the Amsat mailing list. As I have subscribed for receive the keps, I always get in my mailbox only the amsat format ones. I do not get the 2 lines ones. I have checked in my spam folder but there is no message from amsat in that folder. I have also gone on the spam folder directly from the web but also there, the spam folder is empty. Any ideas please? 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: vimone(a)tin.it *** ***************************************

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VERY IMPORTANT AMSAT INFO
by Martha 15 Feb '08

15 Feb '08

PLEASE BE ADVISED THAT THE AMSAT STORE IS TEMPORARILY OUT OF SERVICE DUE TO PROBLEMS CAUSED BY OUR SERVICE PROVIDER. WE WILL LET YOU KNOW WHEN IT IS BACK UP. -- 73- Martha

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(no subject)
by Frank H. Bauer 15 Feb '08

15 Feb '08

Joe, You had two questions in your query and I believe that one of them (the heating one) was been answered. Let me answer the second one: >So in actuality it comes down from space even slower than going up. >Yes? 45 min vs 10. The reason it seems to take longer---45 minutes----to come down (as compared to 10 minutes to reach orbit altitude), has to do with simple orbital dynamics. Or de-orbit dynamics in this case. As you know, the Shuttle (or any other vehicle that is purposely deborbited) performs a deorbit burn about half an orbit before landing. This burn actually changes the orbit perigee (lowest point in the orbit) to be well in the Earth's atmosphere. Or at or below ground altitude if enough propellant is available. Remember that the Shuttle orbit period is on the order of 90-100 minutes. So about 45 minutes after the deorbit burn the vehicle reaches perigee, enters an appreciable part of the atmosphere, and either burns up (many small satellites), or has sufficient thermal protection to land on the ground (Shuttle and large, dense pieces of satellites). My team used this technique to successfully deorbit the Compton Gamma Ray Observatory, resulting in a safe splashdown in the Pacific Ocean. We also used this technique in no atmosphere to purposefully crash the Lunar Prospector into the moon at the end of its mission. Once a vehicle starts to hit atmosphere (the mission control guys call this "entry interface") the heating and events to landing occur rather quickly..several minutes. Because as you start to touch the atmosphere, you continue to get deeper into the atmosphere because you are dipping further down to perigee altitude where the drag is much higher than at the entry interface. I hope this helps. 73, Frank Bauer, KA3HDO ------------------------------ Message: 8 Date: Thu, 14 Feb 2008 20:18:15 -0600 From: Joe <nss(a)mwt.net> Subject: [amsat-bb] Re: Since We Are Off Topic Somewhat.... To: "Ransom, Kenneth G. (JSC-OC)[BAR]" <kenneth.g.ransom(a)nasa.gov> Cc: AMSAT-BB <amsat-bb(a)amsat.org> Message-ID: <47B4F667.7030304(a)mwt.net> Content-Type: text/plain; charset=us-ascii; format=flowed Does anyone have the actual speeds at each altitude going up vs coming down? I tried to find such a graph, chart, table etc, to no avail, Joe Ransom, Kenneth G. (JSC-OC)[BAR] wrote: >The amount of time spent in the atmosphere at high velocity (I'd have to do some digging to give some real time data but basically it is as follows). > >One the way up, the rocket goes through the 100 km of air during the slower part of the change of velocity and spends very little time in the atmosphere at the higher velocity. > >On the way down, the object starts to encounter the atmosphere at maximum velocity and therefore maximum friction. It will be in the atmosphere for the a much longer period since it comes in a very shallow angle. The object will have that friction nearly the entire trip to the ground even though the drag from the atmosphere will slow the object. > >Kenneth - N5VHO > >________________________________ > >From: amsat-bb-bounces(a)amsat.org on behalf of Joe >Sent: Thu 2/14/2008 5:55 PM >To: 'AMSAT-BB' >Subject: [amsat-bb] Since We Are Off Topic Somewhat.... > > > >Hi All,, > >Since we are somewhat off topic for the moment with the conversation >about the bird to come down shortly.. >Ok, the question is, and I've asked it to several other places, and >yet to even get a answer, > >The question is,,, > >Space shuttle launches,, starts off at sea level, and in less than ten >minutes goes from zero to 17K MPh (or so) And gets to orbital altitude. > >Time to come down,, the de-orbit burn happens to slow it down just a bit >to cause the orbit to more or less decay.. It's at orbital altitude.. >and moving at about 17K MPh.. 45 minutes or so later it's back on the >ground and moving at zero MPh.. > >So in actuality it comes down from space even slower than going up. >Yes? 45 min vs 10. > >Ok, same goes with any satellite,, > >How come, going up,, 0 to 17K MPh through the atmosphere, all is >fine.. BUT > >coming down,, 17K MPh to 0 unless it has protection it will burn up >in the atmosphere from friction with the air. > >why is it different? > >Joe WB9SBD & NSS

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Re: SatPC32 with two Icom radio's...Help!!
by Mark L. Hammond 15 Feb '08

15 Feb '08

Hi Michael, Have you tried to use the auxiliary program found here: "C:\Program Files\SatPC32\TxControllerD\TXController.exe" I've used that to control 2 rigs at the same time...works pretty slick! Maybe you can skin the cat this way instead? Mark >Date: Thu, 14 Feb 2008 16:18:41 -0500 >From: "Michael A. Tondee" <mat_62(a)netcommander.com> >Subject: [amsat-bb] SatPC32 with two Icom radio's...Help!! >To: "Amsat-Bb@Amsat. Org" <amsat-bb(a)amsat.org> >Message-ID: <000601c86f4f$2cd38ba0$6500a8c0@w4hij> >Content-Type: text/plain; charset="iso-8859-1" > >Hi, >I'm hoping that someone on the board can help me because I'm having problems trying to get my setup to work. I am now the proud and happy owner of an Icom 820H and an IC706-MKIIG. I have built and tested a CT17 type interface circuit and I have it hooked up and working. The problem I'm having is setting up the dual radio configuration of SatPC32. I've read the help file many times over but I cannot seem to get the radio addresses configured as Erich states. Going by the file I'm assuming the addresses should read $42 $58 in the top address box and $58 $42 in the lower box. Nothing I do will make this happen. If I alter them to that configuration, as soon as I hit the "address ok" button the lower box changes and both both boxes read $42 $58. There is some reference to using the "mode menu" in the file but I can't figure out where it helps. Another question I have is, should the transceive option be turned off on one or both rigs? I've tried every combination I can think of . > This is what I'm trying to accomplish if possible, I want be able to use 2 meters on the 820 as the uplink and 10 meters on the 706 as the downlink. Mode A Oscar 7 in other words. I want to be able to use a 2 meters on the 820 as the uplink and use the 706 in concert with my mode S down converter for my downlink. I'd also like to be able to sometimes use the 820 as a stand alone sat rig without the 706 involved at all. That's the only configuration I can get working at all right now. I hope all of the above makes sense because I must just be totally missing something in the help file and I'm getting frustrated as I'm anxious to be back on the birds. >Tnx for any help and advice anyone can offer, >73, >Michael, W4HIJ > > >------------------------------ > >Message: 11 >Date: Thu, 14 Feb 2008 16:25:01 -0500 >From: "Robert Bruninga" <bruninga(a)usna.edu> >Subject: [amsat-bb] Re: Navy to shoot down satellite >To: "'Bruce Robertson'" <ve9qrp(a)gmail.com> >Cc: 'AMSAT-BB' <amsat-bb(a)amsat.org> >Message-ID: <02c501c86f50$0e803850$42577a83(a)ewlab.usna.edu> >Content-Type: text/plain; charset="US-ASCII" > >> Some media reports are comparing the US Navy shoot- >> down to the one that China conducted recently.. > >Yes, because the media are clueless and don't take the time to >investigate anything about details. > >> Do you have any knowledge or thoughts you can share? > >Only what was on NASA TV. The diffeences are enormous. > >The chinese satellite debris starting at 800 km will be in orbit >for the next 20 to 100 years during which time all of that >depris will pass through the orbits of thousands of other >satellites as it slowly decays. These thousands of debris from >the Chinese satellite, passing through the orbits of thousands >of satellites will likely result in a few additional collisions >that will in turn endanger additional satellites below them. > >The Navy Shoot down is going to be at about 130 miles, below ALL >other satellites and the ISS and the Shuttle. The majority of >the debris will burn up within the next 2 orbits (6 hours or >so).. But just to be sure, they are going to wait till after >the shuttle lands, because the shuttle does have to fly through >that altitude to get home. > > >Bob > > > >------------------------------ > >Message: 12 >Date: Thu, 14 Feb 2008 13:37:49 -0800 >From: "Jeff Yanko" <wb3jfs(a)cox.net> >Subject: [amsat-bb] Re: Shoot Sat - add >To: <amsat-bb(a)amsat.org>, "Clint Bradford" <clintbrad4d(a)earthlink.net> >Message-ID: <000b01c86f51$d87f3ab0$6501a8c0@QUECREEK> >Content-Type: text/plain; format=flowed; charset="Windows-1252"; > reply-type=original > >Is Red Fuming Nitric Acid another name for Hydrazine or are they 2 different >compounds? > >Jeff WB3JFS > > >----- Original Message ----- >From: "Clint Bradford" <clintbrad4d(a)earthlink.net> >To: <amsat-bb(a)amsat.org> >Sent: Thursday, February 14, 2008 12:55 PM >Subject: [amsat-bb] Shoot Sat - add > > >The satellite is outfitted with thrusters ? small engines used to >position it in space. They contain the toxic rocket fuel hydrazine, >which can cause harm to anyone who contacts it. Officials have said >there is about 1,000 pounds of propellent on the satellite. > >Known by its military designation US 193, the satellite was launched >in December 2006. It lost power and its central computer failed >almost immediately afterward, leaving it uncontrollable. It carried a >sophisticated and secret imaging sensor. > > >Clint Bradford, K6LCS / KAF3359 >909-241-7666 > > > > >_______________________________________________ >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 > > > > >------------------------------ > >Message: 13 >Date: Thu, 14 Feb 2008 13:37:42 -0800 >From: Clint Bradford <clintbrad4d(a)earthlink.net> >Subject: [amsat-bb] Re: Shoot Sat - add >To: "Jeff Yanko" <wb3jfs(a)cox.net> >Cc: amsat-bb(a)amsat.org >Message-ID: <A78A4735-B1C1-4397-A85D-2A8CCF1EF1E2(a)earthlink.net> >Content-Type: text/plain; charset=US-ASCII; format=flowed > > >http://en.wikipedia.org/wiki/Hydrazine > >Clint Bradford, K6LCS / KAF3359 >909-241-7666 > > > >On Feb 14, 2008, at 1:37 PM, Jeff Yanko wrote: > >> Is Red Fuming Nitric Acid another name for Hydrazine ... > > > > >------------------------------ > >Message: 14 >Date: Thu, 14 Feb 2008 16:46:38 -0500 >From: "James C. Mankin" <n5x(a)psu.edu> >Subject: [amsat-bb] Re: Shoot Sat - add >To: Jeff Yanko <wb3jfs(a)cox.net> >Cc: Clint Bradford <clintbrad4d(a)earthlink.net>, amsat-bb(a)amsat.org >Message-ID: <47B4B6BE.8060704(a)psu.edu> >Content-Type: text/plain; charset=windows-1252; format=flowed > >They are different. Nitric Acid is an oxidizer while Hydrazine (N2H4) >is a fuel or (probably in this case since no fuel >has been mentioned) a monopropellent. > >Jim KB3KJ > >Jeff Yanko wrote: >> Is Red Fuming Nitric Acid another name for Hydrazine or are they 2 different >> compounds? >> >> Jeff WB3JFS >> >> >> ----- Original Message ----- >> From: "Clint Bradford" <clintbrad4d(a)earthlink.net> >> To: <amsat-bb(a)amsat.org> >> Sent: Thursday, February 14, 2008 12:55 PM >> Subject: [amsat-bb] Shoot Sat - add >> >> >> The satellite is outfitted with thrusters ? small engines used to >> position it in space. They contain the toxic rocket fuel hydrazine, >> which can cause harm to anyone who contacts it. Officials have said >> there is about 1,000 pounds of propellent on the satellite. >> >> Known by its military designation US 193, the satellite was launched >> in December 2006. It lost power and its central computer failed >> almost immediately afterward, leaving it uncontrollable. It carried a >> sophisticated and secret imaging sensor. >> >> >> Clint Bradford, K6LCS / KAF3359 >> 909-241-7666 >> >> >> >> >> _______________________________________________ >> 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 >> >> >> _______________________________________________ >> 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 >> >> >> >> > > > >------------------------------ > >Message: 15 >Date: Thu, 14 Feb 2008 14:03:07 -0800 >From: "Jeff Yanko" <wb3jfs(a)cox.net> >Subject: [amsat-bb] Re: Shoot Sat - add >To: "James C. Mankin" <n5x(a)psu.edu> >Cc: Clint Bradford <clintbrad4d(a)earthlink.net>, amsat-bb(a)amsat.org >Message-ID: <000b01c86f55$6178f740$6501a8c0@QUECREEK> >Content-Type: text/plain; format=flowed; charset="Windows-1252"; > reply-type=response > >OK. Just checking up on it. N2H4 doesn't need an oxidizer to function and >can be used as a monopropellant. > >Jeff WB3JFS > > >----- Original Message ----- >From: "James C. Mankin" <n5x(a)psu.edu> >To: "Jeff Yanko" <wb3jfs(a)cox.net> >Cc: <amsat-bb(a)amsat.org>; "Clint Bradford" <clintbrad4d(a)earthlink.net> >Sent: Thursday, February 14, 2008 1:46 PM >Subject: Re: [amsat-bb] Re: Shoot Sat - add > > >They are different. Nitric Acid is an oxidizer while Hydrazine (N2H4) >is a fuel or (probably in this case since no fuel >has been mentioned) a monopropellent. > >Jim KB3KJ > >Jeff Yanko wrote: >> Is Red Fuming Nitric Acid another name for Hydrazine or are they 2 >> different compounds? >> >> Jeff WB3JFS >> >> >> ----- Original Message ----- >> From: "Clint Bradford" <clintbrad4d(a)earthlink.net> >> To: <amsat-bb(a)amsat.org> >> Sent: Thursday, February 14, 2008 12:55 PM >> Subject: [amsat-bb] Shoot Sat - add >> >> >> The satellite is outfitted with thrusters ? small engines used to >> position it in space. They contain the toxic rocket fuel hydrazine, >> which can cause harm to anyone who contacts it. Officials have said >> there is about 1,000 pounds of propellent on the satellite. >> >> Known by its military designation US 193, the satellite was launched >> in December 2006. It lost power and its central computer failed >> almost immediately afterward, leaving it uncontrollable. It carried a >> sophisticated and secret imaging sensor. >> >> >> Clint Bradford, K6LCS / KAF3359 >> 909-241-7666 >> >> >> >> >> _______________________________________________ >> 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 >> >> >> _______________________________________________ >> 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 >> >> >> >> > > > > > > >------------------------------ > >Message: 16 >Date: Thu, 14 Feb 2008 17:21:40 -0500 (Eastern Standard Time) >From: "Gary Schuchardt" <gschuchardt(a)gp.hrcoxmail.com> >Subject: [amsat-bb] Re: FT-847 Serial Port Communications >To: "Keith N4ZQ" <n4zq(a)netzero.net> >Cc: AMSAT-BB(a)amsat.org >Message-ID: <47B4BEF4.000061.02424@EAGLEWINGS> >Content-Type: Text/Plain; charset="iso-8859-1" > >Hi Keith, > >Everything is now working. I have been experimenting with programs >developed by Bob Freeth, G4HFQ at http://WWW.g4hfq.co.UK. This includes the >FTBasicMMO (memory management) and FTBCAT to control all the features of my >FT-847 rig. You can contact Bob, at mailto:[email protected], if you >have any questions and he will respond very quickly to inquiries. I am >pleased with the software, support and pricing too. The other program that >I tested was the FT-847 SuperCat, but price was a little high for me. The >software is compatible to many of types of transceivers; however, I am only >concerned my current rig. I wanted to wait, until I had a chance to test the >programs before I said anything about what software I was using. I went >ahead and paid a very small fee for one of the program and some others were >free. I have about 36 channels already programmed into my rig memory for >regional UHF and VHF repeaters. Now, I am going to store various >operational and semi-operational satellite frequencies into the FT-847 in >some type of efficient arrangement or ordering to save precious time >changing from one to the other. G4HFQ has various programs that look real >interesting after I get my main object done. > >I have installed a new null modem cable and rearrange Com 1 and Com 2 so >that the later can take care of my MixW logging and digital needs. I hope >you find this information helpful. Keep in touch and God Bless. Thanks >again for your help. > >Gary >N0EZH >Chesapeake VA >CEM Retired > >-------Original Message------- > >From: Keith N4ZQ >Date: 2/11/2008 10:44:06 AM >To: gschuchardt(a)gp.hrcoxmail.com >Subject: Re: [amsat-bb] FT-847 Serial Port Communications > >Hey Gary, > >I've been looking for a long time a replacement FT-847 memory management >program ,since I long ago lost one written by a Frenchman called Edit. > >Would you please tell me what program you are using to read and write memory >information to the Yaesu FT-847? > >Glad you got your issue with port communication taken care of. > >TU Keith N4ZQ > > >-- "Gary Schuchardt" <gschuchardt(a)gp.hrcoxmail.com> wrote: > > >I have a problem involving the 9 pin serial port on the back of my FT-847 >Yaesu transceiver. When I try to use a null modem cable between the rig and >my PC on either COM 1 or 2, the rig will not respond to compatible rig >controller (CAT) nor a memory management program. The COM ports have been >tested as well as the use of two different PCs. Neither null modem cable >works. I have tried to use the Menu feature on the FT-847 to match baud rate >between radio and PC COM port. Has anyone had a problem like this with the >Yaesu FT-847? I would appreciate knowing. > >Thank you. > >Gary N0EZH > >_____________________________________________________________ >Discount Online Trading - Click Now! >http://thirdpartyoffers.netzero >net/TGL2221/fc/Ioyw6i4tFWrs5EOdVH0fo99R7R5RKcIKFcFJKwy9HXVCvnsNtYiNh2/ > > > >------------------------------ > >Message: 17 >Date: Thu, 14 Feb 2008 17:32:11 -0500 >From: "John Marranca, Jr" <KB2HSH(a)amsat.org> >Subject: [amsat-bb] Re: Best coax for 2 meters >To: amsat-bb(a)amsat.org >Message-ID: > <8edcdb130802141432i351e7e57r52b4edd07b3455b4(a)mail.gmail.com> >Content-Type: text/plain; charset=ISO-8859-1 > >Ken... > >I have decent results with RG-6/U. > >It's cheap, it has decent attenuation figures at 144 MHz, and can be bought >at Home Depot. > >And the /U rating means it can be buried. > >I'm sure some will differ with my way of thinking, but I have a flat 1:1 >match on my eggbeaters...and couldn't be happier. (My FT-817ND is happy, >too) > >John KB2HSH > >-- >_______________________________ > > >John Marranca, Jr >PBX Technician/Shop Steward CWA Local 1122 >BN Systems, Inc >Orchard Park, NY >(716)972-2006 > > >------------------------------ > >_______________________________________________ >Sent via amsat-bb(a)amsat.org. Opinions expressed are those of the author. >Not an AMSAT member? Join now to support the amateur satellite program! >http://amsat.org/mailman/listinfo/amsat-bb > > >End of AMSAT-BB Digest, Vol 3, Issue 83 >*************************************** Mark L. Hammond [N8MH]

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Schematic wanted on Henry 3004A
by Farrell Winder 15 Feb '08

15 Feb '08

Does anyone have a Henry 3004A Amplifier utilizing an 8938 tube set up for ATV or EME ? I am looking for a schematic and tuning details. Please reply off line direct to my E-Mail address, fwinder(a)fuse.net. Many thanks, Farrell Winder, W8ZCF, Cincinnati, OH

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Re: Errant Spy Satellite
by Clint Bradford 14 Feb '08

14 Feb '08

>>...Navy to shoot down satellite... Project name: Shoot Sat Clint

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Re: Best coax for 2 meters
by John Marranca, Jr 14 Feb '08

14 Feb '08

Ken... I have decent results with RG-6/U. It's cheap, it has decent attenuation figures at 144 MHz, and can be bought at Home Depot. And the /U rating means it can be buried. I'm sure some will differ with my way of thinking, but I have a flat 1:1 match on my eggbeaters...and couldn't be happier. (My FT-817ND is happy, too) John KB2HSH -- _______________________________ John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006

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Re: FT-847 Serial Port Communications
by Gary Schuchardt 14 Feb '08

14 Feb '08

Hi Keith, Everything is now working. I have been experimenting with programs developed by Bob Freeth, G4HFQ at http://WWW.g4hfq.co.UK. This includes the FTBasicMMO (memory management) and FTBCAT to control all the features of my FT-847 rig. You can contact Bob, at mailto:[email protected], if you have any questions and he will respond very quickly to inquiries. I am pleased with the software, support and pricing too. The other program that I tested was the FT-847 SuperCat, but price was a little high for me. The software is compatible to many of types of transceivers; however, I am only concerned my current rig. I wanted to wait, until I had a chance to test the programs before I said anything about what software I was using. I went ahead and paid a very small fee for one of the program and some others were free. I have about 36 channels already programmed into my rig memory for regional UHF and VHF repeaters. Now, I am going to store various operational and semi-operational satellite frequencies into the FT-847 in some type of efficient arrangement or ordering to save precious time changing from one to the other. G4HFQ has various programs that look real interesting after I get my main object done. I have installed a new null modem cable and rearrange Com 1 and Com 2 so that the later can take care of my MixW logging and digital needs. I hope you find this information helpful. Keep in touch and God Bless. Thanks again for your help. Gary N0EZH Chesapeake VA CEM Retired -------Original Message------- From: Keith N4ZQ Date: 2/11/2008 10:44:06 AM To: gschuchardt(a)gp.hrcoxmail.com Subject: Re: [amsat-bb] FT-847 Serial Port Communications Hey Gary, I've been looking for a long time a replacement FT-847 memory management program ,since I long ago lost one written by a Frenchman called Edit. Would you please tell me what program you are using to read and write memory information to the Yaesu FT-847? Glad you got your issue with port communication taken care of. TU Keith N4ZQ -- "Gary Schuchardt" <gschuchardt(a)gp.hrcoxmail.com> wrote: I have a problem involving the 9 pin serial port on the back of my FT-847 Yaesu transceiver. When I try to use a null modem cable between the rig and my PC on either COM 1 or 2, the rig will not respond to compatible rig controller (CAT) nor a memory management program. The COM ports have been tested as well as the use of two different PCs. Neither null modem cable works. I have tried to use the Menu feature on the FT-847 to match baud rate between radio and PC COM port. Has anyone had a problem like this with the Yaesu FT-847? I would appreciate knowing. Thank you. Gary N0EZH _____________________________________________________________ Discount Online Trading - Click Now! http://thirdpartyoffers.netzero net/TGL2221/fc/Ioyw6i4tFWrs5EOdVH0fo99R7R5RKcIKFcFJKwy9HXVCvnsNtYiNh2/

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Shoot Sat - add
by Clint Bradford 14 Feb '08

14 Feb '08

The satellite is outfitted with thrusters — small engines used to position it in space. They contain the toxic rocket fuel hydrazine, which can cause harm to anyone who contacts it. Officials have said there is about 1,000 pounds of propellent on the satellite. Known by its military designation US 193, the satellite was launched in December 2006. It lost power and its central computer failed almost immediately afterward, leaving it uncontrollable. It carried a sophisticated and secret imaging sensor. Clint Bradford, K6LCS / KAF3359 909-241-7666

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SatPC32 with two Icom radio's...Help!!
by Michael A. Tondee 14 Feb '08

14 Feb '08

Hi, I'm hoping that someone on the board can help me because I'm having problems trying to get my setup to work. I am now the proud and happy owner of an Icom 820H and an IC706-MKIIG. I have built and tested a CT17 type interface circuit and I have it hooked up and working. The problem I'm having is setting up the dual radio configuration of SatPC32. I've read the help file many times over but I cannot seem to get the radio addresses configured as Erich states. Going by the file I'm assuming the addresses should read $42 $58 in the top address box and $58 $42 in the lower box. Nothing I do will make this happen. If I alter them to that configuration, as soon as I hit the "address ok" button the lower box changes and both both boxes read $42 $58. There is some reference to using the "mode menu" in the file but I can't figure out where it helps. Another question I have is, should the transceive option be turned off on one or both rigs? I've tried every combination I can think of. This is what I'm trying to accomplish if possible, I want be able to use 2 meters on the 820 as the uplink and 10 meters on the 706 as the downlink. Mode A Oscar 7 in other words. I want to be able to use a 2 meters on the 820 as the uplink and use the 706 in concert with my mode S down converter for my downlink. I'd also like to be able to sometimes use the 820 as a stand alone sat rig without the 706 involved at all. That's the only configuration I can get working at all right now. I hope all of the above makes sense because I must just be totally missing something in the help file and I'm getting frustrated as I'm anxious to be back on the birds. Tnx for any help and advice anyone can offer, 73, Michael, W4HIJ

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