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

Re: FO-29 was OFF !
by Mineo Wakita 21 Apr '07

21 Apr '07

We also can't hear FO-29 CW over Japan. We are now waiting a official comment from JARL. --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Apr 21, 2007 ---------------------------------------------

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FO-29 off
by DeYoung James 21 Apr '07

21 Apr '07

Greetings, The FO-29 (V/U) transponder was off between 21:27 to 21:43 UTC 2007 April 20 when monitored from FM18. The 70-cm beacon was not heard no seen on an audio time-frequency spectrum. I captured telemetry yesterday 2007 Apr. 19 at around 20:30 UTC for a few minutes and nothing seems out-of-the-ordinary in the values. The analog TX power has fluctuated the last few months between about 250-mw to about 1000-mw. The other telemetry seems mostly flat and at reasonable values. 73, KG4QWC __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Solution to cubesat tracking
by Rob Hardenberg PE1ITR 20 Apr '07

20 Apr '07

To all Cubesat designers on the bb, I find it very hard and difficult to track and find the cubesat beacons. The reason is they are transmitting short packets once every 2 or 5 minutes. I was thinking on a simple solution to this problem. Why not running the beacons with continues wave on very low power? Say 2 ~ 4 milliwatt or so. On a packet burst the beacon can switch on high power, but in between its switching back to low power cw. This way its not doing to much on the cubesats power budget and it would easy to track. This idea is already been tested succesfull. The last few months we are doing tests with the 4 milliwatt 216.980MHz beacon on RAFT. Signals received on a 10 el yagi are very good. I could track the raft milliwatt beacon back to 3 degrees above the horizon with realtime dsp. On my webpage are the results of these experiments: http://www.pe1itr.com/satellite/raft.htm Maybe this idea could be used in de next cubesat launch? 73 Rob PE1ITR http://www.pe1itr.com

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BREAKING NEWS HOUSTON SPACE CENTER BUILDING 44 IN LOCK DOWN PER MSNBC
by Les Alverson 20 Apr '07

20 Apr '07

MSNBC is reporting that building 44 is in a lock down position due to a person with a gun inside. Early reports (NOT CONFIRMED) states that shots have been fired. Les KD4SFD

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FO-29
by Joe Veldhuis 20 Apr '07

20 Apr '07

I did not hear FO-29 during orbit 52714. Last Tuesday afternoon I was working the satellite from the Holland ARC clubhouse and noticed that my downlinked signal was intermittent and FMing quite severely. At first I attributed this to the rig (an old Kenwood TS-700A with mechanical tuning) but listening "on the input" revealed my uplink signal to be pure and steady. So I guess this bird has been sick for some time. Like everyone, I really hope that the control ops can save this satellite. -Joe, N8FQ Grand Haven, Michigan 42°59'40"N 86°7'27"W (EN62wx)

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FO-29
by k3szh＠netzero.net 20 Apr '07

20 Apr '07

Hi Dom,Mak Nothing heard on this side on orbit 52713 at 19:46 Joe Amsat 3788

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ISS Active
by Bill Acito W1PA 20 Apr '07

20 Apr '07

Charles was active yesterday on voice on the 6pm EDT pass over the central US. You may want to listen again today. I worked him mobile with an FT100D in the car, mobile. Recorded the entire pass -- N8MS, KC0NJO, AB9MX, KB1GUE, VE1AMA , let me know if you would like a copy of the recording (down link only, of course) Bill W1PA

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FO-29 was OFF !
by i8cvs 20 Apr '07

20 Apr '07

Hi All, To day 20 april FO-29 was OFF during the ascending orbit 52710 over Europe No the 435.795 MHz CW beacon was heard nor the Voice/CW mode JA transponder was operating and not the usual translated noise was received and FO-29 was in sun light I will monitor the next available orbits 52711 and 52712 over the mediterranean and the atlantic ocean Beginning from orbit 52713 FO-29 will be in range with the USA Please monitor and send reports. 73" de i8CVS Domenico

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ao-51 pass
by Steve Attfield 20 Apr '07

20 Apr '07

I'm not sure if I'm just really bad at aiming my antennas ior if 51 was at a bad angle but I was trying to track the 51 pass which came by my location at about 14:11 UTC and there was only one point where I think I heard it. I was looking for it in the area where I thought it might be and I caught a point in the middle of the pass when I heard a little bit of a signal quieting and I thought I heard voices bolew the noise floor and then I subsequently lost it. does anyone know if this was a bad pass or just a bad operator? -Steve VA3SAX

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New Satellites
by Mineo Wakita 20 Apr '07

20 Apr '07

EGYPTSAT 1 31117 SAUDISAT 3 31118 SAUDICOMSAT 7 31119 SL-24 DEB 31120 SAUDICOMSAT 6 31121 OBJECT F 31122 SL-24 R/B 31123 SAUDICOMSAT 5 31124 SAUDICOMSAT 3 31125 OBJECT J 31126 OBJECT K 31127 OBJECT L 31128 OBJECT M 31129 OBJECT N 31130 OBJECT J = CAPE-1 ? 1 31126U 07012K 07109.87495130 .00000393 00000-0 10000-3 0 87 2 31126 098.0837 185.0256 0094278 205.2982 154.3455 14.53328747 387 http://www.celestrak.com/NORAD/elements/tle-new.txt http://www.space-track.org/perl/login.pl --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Apr 20, 2007 ---------------------------------------------

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