January 2010 - AMSAT-BB - mailman.amsat.org

DOKA-B Telemetry Question
by PE0SAT 26 Jan '10

26 Jan '10

I am not sure, but as far as I know DOKA-B is the telemetry software on Russian Satellites. RS-30, RS-38 etc Does anybody know how to decode this telemetry data? 73 Jan - PE0SAT -- With regards PE0SAT Internet web-page http://www.ham.vgnet.nl/

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Re: LEO/cube sat for sale 8000$
by William Leijenaar 26 Jan '10

26 Jan '10

Hi AMSATs, I just read the message about the tube-sats. I was having a look to their options, but when I understand well in the structure there is already a radio integrated ? What is the area that can be used for electronics ? The weight is max. 250 grams, which is no problem to handle one off my LE005-R2 linear transponders (weights only 30 grams). Check it on: www.leijenaarelectronics.nl When there is enough space in the tube-sat to fit my transponder, this is very interresting. Just fill the existing space with Li-ion batts and there you go... Anyone already have experience with these tube-sats ? 73, de PE1RAH William Leijenaar --- Send instant messages to your online friends http://uk.messenger.yahoo.com

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Amateur Satellites Close Conjuctions
by Armando Mercado 26 Jan '10

26 Jan '10

Hello, Given the recent close conjunction between Compass-1 and Sich 1, I was curious how common such encounters were. Using SOCRATES on the celestrak site, http://celestrak.com/SOCRATES/, it looks like they are fairly common. Here are some up coming conjunctions: Objects Date Time UTC Distance KM AO-51 (28375) & Cosmos 676 (07433) 27 Jan. 2010 09:05:36 1.93 Hope-1 (36122) & Cosmos 272 (03818) 30 Jan. 2010 15:07:21 0.511 Hamsat (28650) & TIROS 8 Deb. (19396) 1 Feb. 2010 01:26:28 0.926 73, Armando N8IGJ

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Mobile Sat antenna
by joe barkley 26 Jan '10

26 Jan '10

Hi All, I have heard a couple times on the FM birds of stations signing mobile. I wonder what type of antennas are used for mobile. I have an Arrow I use portable with my HT. I have a full duplex Icom FM rig and could just barely hear HO-68 on a Wednesday pass up in Em95. No preamp or anything yet and just a 1/4 wave duobander. What would it take to operate truly mobile from an antenna standpoint. Just playing with the idea. I travel a bit during Spring and Summer and might be fun to try. Joe KI4TZ

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First Tweet from space
by Trevor . 26 Jan '10

26 Jan '10

Expedition 22 sends first Tweet from space http://www.southgatearc.org/news/january2010/first_tweets_from_space.htm 73 Trevor M5AKA Daily Amateur Radio News (Email/RSS): http://www.southgatearc.org/ Email Your News To: editor at southgatearc.org Or Use Form at: http://www.southgatearc.org/news/your_news_1.htm ---

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HO-68 Schedule - 24-31 Jan 2010
by Alan Kung 26 Jan '10

26 Jan '10

24 Jan. 2010, Linear Transponder ======================================= 16:05...Turn On India,Middle East Asia, Europe, NA 16:50...Turn Off 23:15...Turn On South Africa,South America,Europe, NA,North Pole,North Asia 24:00...Turn Off 25 Jan. 2010, Linear Transponder ======================================= 00:55...Turn On South Pole, South America,NA,North Asia,North Pole 01:40...Turn Off 12:08...Turn On Australia,South Asia,East Asia,North Asia 12:21...Turn Off 19:15...Turn On South Africa,Europe,NA,North Pole,North Asia 20:00...Turn Off 26 Jan. 2010, Linear Transponder ======================================= 00:40...Turn On South America,NA,North Asia, North Pole 01:23...Turn Off 02:20...Turn On South America,NA,North Asia, North Pole 03:05...Turn Off 11:25...Turn On Australia, New Zealand 11:48...Turn Off 13:41...Turn On South Asia,East Asia,North Asia 13:56...Turn Off 19:00...Turn On Africa,Europe,NA,North Pole,North Asia 19:45...Turn Off 27 Jan. 2010, Linear Transponder ======================================= 00:20...Turn On South Pole,South America, NA North Asia, North Pole 01:05...Turn Off 02:10...Turn On South Pole,South America, NA North Asia, North Pole 02:55...Turn Off 11:15...Turn On South Pole,Australia, New Zealand, East Asia,Europe,NA,North Pole 12:00...Turn Off 17:05...Turn On India,Middle East Asia,Europe,NA, North Pole 17:50...Turn Off 28 Jan. 2010, Linear Transponder ======================================= 00:05...Turn On South Pole,South America,NA,North Asia 00:45...Turn Off 01:55...Turn On South America,NA,North Asia 02:40...Turn Off 11:00...Turn On Oceania,East Asia,North Asia,Europe 11:45...Turn Off 13:07...Turn On South Asia,East Asia,North Asia 13:22...Turn Off 20:10...Turn On Africa,Europe,NA 20:55...Turn Off 29 Jan. 2010, Linear Transponder ======================================= 03:40...Turn On South America,NA,North Asia,Middle Asia 04:25...Turn Off 10:40...Turn On Oceania,East Asia,North Asia,Europe 11:25...Turn Off 12:50...Turn On South Asia,East Asia,North Asia 13:05...Turn Off 13:20...Turn On Europe,NA,South America,South Pole 14:05...Turn Off 16:30...Turn On India,Middle East Asia,Europe,NA 17:15...Turn Off 19:55...Turn On Africa,Europe,NA,North Asia 20:40...Turn Off 30 Jan. 2010, Linear Transponder ======================================= 03:25...Turn On NA,North Asia 03:48...Turn Off 12:10...Turn On Oceania 12:30...Turn Off 12:36...Turn On North Asia,East Asia,South Asia,Oceania 12:51...Turn Off 19:40...Turn On Africa,Europe,NA,North Asia 20:25...Turn Off 31 Jan. 2010, Linear Transponder ======================================= 01:05...Turn On South America,NA,North Asia 01:50...Turn Off 02:55...Turn On South America,NA,North Asia 03:40...Turn Off 12:19...Turn On South Asia,East Asia, North Asia 12:34...Turn Off 73 Alan Kung, BA1DU HO-68(XW-1) Project Manager www.camsat.cn

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Winrotor drivers
by Jean Jacques FILIPPI 26 Jan '10

26 Jan '10

Hello all I ‘m using Winrotor LPT Interface for my Sat Tracking . The drivers contained in my original CD purchased from Funkbox are unreadable. Strange ... Have you anything for me and allow me to reinstall these drivers ? In advance, thank you . 73's de TK5JJ

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HO-68 Tracking
by Peter Scheller 26 Jan '10

26 Jan '10

Greetings to all. I have 2 satellite prediction programs, NOVA for Windows and of course SatPC32. Since the two do not match in prediction, I tried to find out which one is correct. Anyone wonders about the outcome? Erich, you can relax, your SatPC32 program is superior! But...... Setup: IC-706MKII, outside Arrow antenna mounted on photo tripod at ground level. Computer time adjusted to WWV and newest Keps loaded via internet. HO-68 orbit 547 was an almost overhead pass (here in Hawaii). When I finally picked up HO-68's beacon, the indicated CAT frequency of the SatPC32 program and the MANUALLY tuned frequency of the IC-706MKII did not match, and were far off. By observation, the satellite was lagging the prediction program. When the the CAT window showed a beacon frequency of 435790 KHz I timed this with a stop watch, and waited till the radio dial showed the same. The difference was about 7 minutes! and SatPC32 showed HO-68 almost out of the foot print whilst it should have been overhead at the closest distance to me. Something is absolutely wrong. A 7 minute time difference is not acceptable. Next I loaded HO-68's Online Satellite Pass Predictions from AMSAT NA. Surprise, the AMSAT predictions accurately mirror the SatPC32 predictions, or vice versa. But are wrong! as measured by the actual event. Any help out there? 73, Peter NH6VB _________________________________________________________________ Hotmail: Powerful Free email with security by Microsoft. http://clk.atdmt.com/GBL/go/196390710/direct/01/

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AO-7 UHF beacon heard
by Auke de Jong, VE6PWN 25 Jan '10

25 Jan '10

I am copying a very strong carrier on AO-7 as I write this... 435.106MHz , no signs of modulation. Planet Emily latest reports show the transponder might be off... I didn't listen for myself... have to swap co-ax, but I was busy trying to figure out if the carrier were definitely the old girl, or Informator-1/RS-14 which were both directly overhead and whose dopper-shifts were similar at the time... I confirmed it to be definitely coming from AO-7. As I push "send" the carrier is still clear at 3.5 degrees over the north pole... Auke de Jong VE6PWN DO33go Edmonton, AB

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ISS Reboost
by Randy 25 Jan '10

25 Jan '10

This came off the russian space agency site Where I was looking for MAI-75 and never found it .. :) But did find this: On Jan. 24, ballistics ops personnel of the Mission Control Center in Korolev, Moscow region, performed International Space Station reboost maneuver. The operation was carried out automatically, and assisted by Zvezda boosters KD-1 and KD-2, which were switched on at 12:01 Moscow time. The operation lasted 150 seconds. The maneuver resulted in additional station acceleration of 2.85mps. ISS altitude became about 5 km higher. Randy - N2CUA

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