May 2007 - AMSAT-BB - mailman.amsat.org

AO-51 mode-V/S
by David 24 May '07

24 May '07

Hello All, Good to hear AO-51 in mode V/S again. Got S9 signals using just a homebrew patch in front of the DB6NT transverter. 1W of uplink into a 2 element yagi got in easily enough from my back yard. Pity there wasn't anyone else to talk to. Did they know it was on 145.880 instead of 145.920? More passes tonight. 73 de David VK5DG

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RAFT Packet Operator assistance Desparately needed
by Robert Bruninga 24 May '07

24 May '07

We desperately need some AMSAT OSCAR class stations in the Central USA to complete the RAFT radar fence test ASAP. Deorbit is in the next two weeks, much earlier than previous predictions, and so we will not get another comfortable evening pass window. Prime passes now are occurring around 4 AM and moving earlier (sorry). Before, we asked for Southern USA. Now we realize that someone in most central states have command potential. Anyone within about 1000 miles E/W of North Texas or 600 miles north and south are ideal! Station requirements: 1) OSCAR class tracking 2m beam for up/downlink 145.825 2) Standard AX.25 1200 baud packet 3) Simple HYPERTERM text commanding 4) Familiarity with TNC's and TNC commanding 5) Prepared to record 1 minute of audio heard on downlink Unfortunately I am going to Dayton this weekend, but we have to really be ready for this next week and get this test done. None of the principals involved in this design can do it because we all live too far away from the 216.98 MHz RADAR fence transmitter in North Texas. See WEB: http://www.ew.usna.edu/~bruninga/ande-raft-ops.html Thanks, WB4APR, Bob -----Original Message----- Sent: Tuesday, April 24, 2007 1:23 PM Subject: RE: [amsat-bb] RAFT Packet Operator assistance needed We only have 7 days left in this operating period and really do need a good OSCAR station in the Southern USA in a line from AZ to GA to conduct this test of RAFT flying through the 80 megawatt radar transmitter beam originated in north Texas. There is only one viable pass per day per command station location in the early evening.... The trick is to command the satellite to turn on its downlink carrier and Radar receiver exactly 30 seconds prior to passing through the fence and then having an audio recorder running to "hear" (record) the tone when we pass through the radar beam. Commands are a simple CONNECT XXXX at the cmd: propt, then an exchange of passwords, and then sending a simple typed command at the right time. RAFT can he HEARD just fine on ALL FIVE passes leading up to this last pass per day, so you can test your RECEIVE capability on any pass, but can only command in the dark (due to overcharging on batteries makes uplink receier deaf)... If anyone can conduct this test please let us know. Only one person per pass can attempt this, so we want the best gun at the stick. Fully conversent at the TNC "cmd:" prompt and preerably with experimence with the KPC3+ remote-sysop command mode. Bob, WB4APR USNA Satelite Lab > ----- Original Message ----- > Sent: Monday, April 23, 2007 12:32 PM > Subject: [amsat-bb] RAFT Packet Operator assistance needed > > > We need AMSAT operator help with the RAFT satellite > > Test. We need somone with a 2m beam and familiarity > > with packet that lives in the Southern USA from > > Arizona to Georgia (AZ, NM, TX, OK, MS, ALA, GA). > > > > RAFT is past its mission life time half-way point, > > and we have not been able to find anyone in the above > > footprint to help us conduct the primary mission which > > was for the satellite to detect its own passing through > > the DOD's radar fence. When it flies through the > > North American Space-Object fan beam, we should hear > > about 1 second tone that anyone can hear on the downlink. > > > > Due to its low orbit and small footprint, turning on > > the Radar Transponder can only be done in the shared > > footprint between the radar transmitter in North Texas > > and the command station. The ideal command station has > > these atributes: > > > > 1) Lives in AZ, NM, TX, OK, AK, LA, MS, AL, GA, W.FLA > > 2) A reasonable 2m beam for ops on 145.825 > > 3) A packet TNC > > 4) Familiar with dumb-terminal TNC operations such as > > A. Connections, Converse, UNPROTO, etc > > B. Remote sysop logon to a Kantronics TNC > > > > The objective of these southern command stations is to > > logon, send the command to activate the RAFT Radar > > receiver for 1 minute in anticipation of passing > > through the fence. Then hopefully recording any audio > > heard on the downlink (145.825). Of course, once the > > radar receiver is on, everyone in the footprint should > > be able to hear it. > > > > For info, see the ANDE-RAFT operations page: > > http://eng.usna.navy.mil/~bruninga/ande-raft-ops.html > > > > Several AMSAT hams built this tiny Radar receiver as a > > possible common device for all future HAMsats, and we > > would like to get feedback on its performance. But > > they all live up North. If you have a beam and > > familiarity with TNC's please let us know. > > > > Bob, WB4APR. > > US Naval Academy Satellite Lab

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FT-736 Display
by Tony, VK5ZAI 24 May '07

24 May '07

After around 10 years of being on and monitoring Mir and the ISS 24/7 the display on my FT-736 appears to be dimming. Can someone tell me what the life expectancy of this type of display is? Secondly, has anyone got a wrecked 736 with a good display board in they wish to quit? Please reply to my address direct Tks. -- Regards Tony. VK5ZAI J.A.(Tony)Hutchison P.O.Box 470 Kingston SE South Australia 5275 Australian ARISS Co-ordinator and Satellite ground Station. Web Site :- http://www.electric-web.org

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Re: RAFT Commanding URGENTLY needed
by Henk, PA3GUO 23 May '07

23 May '07

In addition to Bob's URGENT request for help on RAFT, please note that if you feel uncomfortable commanding a satellite for the first time in your life, there is a team ready to guide you. I believe that anyone that can digipeat via PCSAT or RAFT or ANDE is an excellent candidate ! Personally I offer to be 'live' with you on the phone during any attempt, at almost any time of the day to help out. Please if you can, but still are to scared to do this, give me a call and we can sort it out - you can make the difference ! Henk Hamoen, PA3GUO, ANDE/RAFT Command Station The Netherlands phone +31 40 2215516 (Amsterdam time, is GMT+2, is East Coast +6 hrs) email pa3guo AT amsat.org web http://www.qsl.net/pa3guo > We still URGENTLY need a command station in the > Southern USA From Arizona to Georgia, or from Texas > to 40 deg or so N.LAT to command RAFT.

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Parts list for LVB boards at Dayton
by Gould Smith 23 May '07

23 May '07

Some of the CDs included with the LVB boards at Dayton did not have the parts list on them. My mistake, sorry. Kevin, WA6FWF who created the list, is now hosting the parts list document. So those of you that did not get the parts list on your CD, you can download from Kevin's site. Thanks, Kevin. http://wa6fwf.ham-radio-op.net/Downloads/LVB_USparts.doc 73, Gould, WA4SXM

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V/S switch postponed...
by Andrew Glasbrenner 23 May '07

23 May '07

until tomorrow morning. 73, Drew KO4MA

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Please, all Keplerian Elements / Porfavor, todos los Elementos Keplerianos.
by HEYLER YESID LEDEZMA LEUDO 23 May '07

23 May '07

Hi. Excuse me for my defective Enlish. Thaks for your valuable information. I would like to write frecuently with you (AMSAT) to exchange information. In this moment I have some keplerian elements from satellite Libertad 1. Your database is very good and complete, I would thank you if you send me all keplerian elements than you have (since launch: April 17, to today), because would be very good for spacial project: "Colombia on orbit". I will send you information about advance of this project if you need. Thanks. Heiler Yesid Ledezma Leudo. Researcher: Spacial project: Colombia on Orbit. /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Buenas noches. Muchas gracias por su valiosa información. Me agradaría que mantuvieramos contácto para que intercambiemos información. En este momento cuento con algunos elementos keplerianos para el satélite Libertad 1, la base de datos que ustedes manejan en AMSAT es bastante amplia, les agradecería mantenerme actualizado al respecto, ya que sería excelente para el proyecto espacial: "Colombia en órbita", si pudieran enviarme la mayor cantidad de elementos keplerianos (desde el día del lanzamiento: 17 de Abril, hasta hoy) para este satélite, ya que la base de datos que ustedes manejan en AMSAT es bastante amplia. Les informaré sobre los avances del proyecto si lo requieren. ¡Hasta pronto, éxitos...!. Heiler Yesid Ledezma Leudo. Investigador: Proyecto Espacial Colombia en Orbita. Heiler Yesid Ledezma Leudo. Estudiante de Tecnología Electrónica -U. Distrital. --------------------------------- Do You Yahoo!? La mejor conexión a Internet y 2GB extra a tu correo por $100 al mes. http://net.yahoo.com.mx

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Please, all Keplerian Elements / Porfavor, todos los Elementos Keplerianos.
by HEYLER YESID LEDEZMA LEUDO 23 May '07

23 May '07

Excuse me for my defective Enlish. Thaks for your valuable information. I would like to write frecuently with you (AMSAT) to exchange information. In this moment I have some keplerian elements from satellite Libertad 1. Your database is very good and complete, I would thank you if you send me all keplerian elements than you have (since launch: April 17, to today), because would be very good for spacial project: "Colombia on orbit". I will send you information about advance of this project if you need. Thanks. Heiler Yesid Ledezma Leudo. Researcher: Spacial project: Colombia on Orbit. /////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Muchas gracias por su valiosa información. Me agradaría que mantuvieramos contácto para que intercambiemos información. En este momento cuento con algunos elementos keplerianos para el satélite Libertad 1, la base de datos que ustedes manejan en AMSAT es bastante amplia, les agradecería mantenerme actualizado al respecto, ya que sería excelente para el proyecto espacial: "Colombia en órbita", si pudieran enviarme la mayor cantidad de elementos keplerianos (desde el día del lanzamiento: 17 de Abril, hasta hoy) para este satélite, ya que la base de datos que ustedes manejan en AMSAT es bastante amplia. Les informaré sobre los avances del proyecto si lo requieren. ¡Hasta pronto, éxitos...!. Heiler Yesid Ledezma Leudo. Investigador: Proyecto Espacial Colombia en Orbita. Heiler Yesid Ledezma Leudo. Estudiante de Tecnología Electrónica -U. Distrital. --------------------------------- Do You Yahoo!? La mejor conexión a Internet y 2GB extra a tu correo por $100 al mes. http://net.yahoo.com.mx

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Please, all Keplerian elements/ Porfavor, todos los elementos Keplerianos.
by HEYLER YESID LEDEZMA LEUDO 23 May '07

23 May '07

Excuse me for my defective Enlish. Thaks for your valuable information. I would like to write frecuently with you (AMSAT) to exchange information. In this moment I have some keplerian elements from satellite Libertad 1. Your database is very good and complete, I would thank you if you send me all keplerian elements than you have (since launch: April 17, to today), because would be very good for spacial project: "Colombia on orbit". I will send you information about advance of this project if you need. Thanks. Heiler Yesid Ledezma Leudo. Researcher: Spacial project: Colombia on Orbit. ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////   & nbsp; Muchas gracias por su valiosa información. Me agradaría que mantuvieramos contácto para que intercambiemos información. En este momento cuento con algunos elementos keplerianos para el satélite Libertad 1, la base de datos que ustedes manejan en AMSAT es bastante amplia, les agradecería mantenerme actualizado al respecto, ya que sería excelente para el proyecto espacial: "Colombia en órbita", si pudieran enviarme la mayor cantidad de elementos keplerianos (desde el día del lanzamiento: 17 de Abril, hasta hoy) para este satélite, ya que la base de datos que ustedes manejan en AMSAT es bastante amplia. Les informaré sobre los avances del proyecto si lo requieren. ¡Hasta pronto, éxitos...!. Heiler Yesid Ledezma Leudo. Investigador: Proyecto Espacial Colombia en Orbita. Heiler Yesid Ledezma Leudo. Estudiante de Tecnología Electrónica -U. Distrital. --------------------------------- Do You Yahoo!? La mejor conexión a Internet y 2GB extra a tu correo por $100 al mes. http://net.yahoo.com.mx

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For sale IC-970
by Eddy GORA 23 May '07

23 May '07

I am selling my old IC-970, all-mode tribander 2m/70cm/23cm. Price negotiable. Anyone interested by email yo3(a)hcv.ro 73' de Edi, YO3HCV No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.7.6/814 - Release Date: 5/21/2007 2:01 PM

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