AMSAT-BB January 2010

213 participants
317 discussions

COMPASS-1 Close Approach
by Mike Rupprecht 22 Jan '10

22 Jan '10

All, United States Joint Space Operations Center (JSpOC) has identified predicted close approach between COMPASS-1 (#32787) and SICH-1 (#23657). Jan 22 14:27 UTC - predicted distance: 429 m (overall) Can someone listen to the COMPASS-1 beacon (437.275 MHz CW) after this time, please? It’s the first US East-Coast pass on this day. Any reports are very appreciated. Thanks in advance! 73, Mike DK3WN

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TS-790E &[email protected]
by Vincenzo Mone 22 Jan '10

22 Jan '10

Hit o the list, I own an Kenwood TS-790E that I used since there was KO-23 KO-25 UO-22 and others 9600bd Satellites. Ho you know with these birds with had to work as Uplink 2m and as downlink On 70 cm so I have made modifies to these two bands using the ACC4 socket on The back of the radio.. Now there is AO-51 that has the possibility to go at 9600bd, but sometimes it has the uplink on 1.2GHZ. Is there anybody that can tell me if I can add the 9600bd on the 1.2Ghz module? I need that it has to work in full duplex as the other one. Thanks in advance for any help 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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Compass 1 OK
by Armando Mercado 22 Jan '10

22 Jan '10

Hi, Compass 1 survived its close conjuction with Sich 1. Compass 1 CW beacon was copied at AOS right on time. It was interesting to watch the encounter via tracking program. Closing velocities of 15,000 meters/second or 34,000 MPH. 73, Armando N8IGJ

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SO-67 Schedules for the weekend
by Gladys Magagula 22 Jan '10

22 Jan '10

AUSTRALIA/NZ 1/23 21:23 1/23 22:57 1/24 21:05 1/24 00:15 SOUTH AFRICA 1/24 20:02 NORTH AMERICA 1/24 16:02 ExUSSR 1/23 05:18 1/24 05:00 1/25 04:40 1/25 07:45 JAPAN 1/23 00:39 1/23 22:45 1/24 00:18 EUROPE 1/23 8:27 1/24 8:06 1/24 9:40 1/25 9:19 SOUTH AMERICA 1/24 11:34 Regards, Gladys. E-mail Disclaimer http://www.sunspace.co.za/emaildisclaimer.htm

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910/1.2ghz/sequencer
by Bob- W7LRD 22 Jan '10

22 Jan '10

Hello I am trying to set up my 910/sequencer/amp. Checking things out before hard wiring everything I discovered when grounding pin 3 of the acc socket the radio does go to xmit, and will do cw, however to send ssb the ptt on the mic has to be pushed. At times I use a Heil head set that has no PTT and I simply push the xmit on the radio. Do I have to pick off the PTT at the mic connector? I am probably overlooking something obvious. What do you 910 experts have to say. As always, thankyou 73 Bob W7LRD

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Graphical display of states worked or something
by Doug Papay 22 Jan '10

22 Jan '10

Mike, Check out GcmWin (Great Circle Maps) from Roger, SM3GSJ at URL http://www.qsl.net/sm3gsj/index.htm. This is not exactly what you are looking for, but it does a good job of plotting your grid squares on a map. It can plot from two different grid square lists as well, so you can highlight confirmed vs. worked grids, for example, in different colors or shades. It does have the capability of adding boundaries--so state outlines could be added, but so far no support for shading in the boundaries as far as I know. Doug KD8CAO ------------------------------ Message: 11 Date: Thu, 21 Jan 2010 09:44:52 -0500 From: Michael Wolthuis <wolthui3(a)msu.edu> Subject: [amsat-bb] Graphical display of states worked or something similar? To: <amsat-bb(a)amsat.org> Message-ID: <C77DD294.11803%wolthui3(a)msu.edu<C77DD294.11803%25wolthui3(a)msu.edu> > Content-Type: text/plain; charset="US-ASCII" Been having lots of fun with new rooftop sat antennas. What I would like to do is attempt to work all states via AO-51, but I am struggling with a good layout to keep myself motivated. Does anyone know of a logging program I could display on a flat screen specific to sats? Here is my thought: A google maps overlay that has states and gridsquares on it (does this exist today as overlays for Google Earth maybe?) Then Iog my sat contacts on AO-51 into a logging program (LOTW or something else). Then it gives me an output overlay for Google so I can see all states and gridsquares worked. It would be great if it could color in the states I have worked and/or the grids I have worked on zoomin. Well, I know it is a lot to ask and maybe it has to be designed, but it certainly sounded interesting to me. It would really be nice when scouts or family come over to show them the states I have worked on AO-51 and/or others in a visual display. Thanks for any ideas or any pointers into anything close or at least a good sat logging program that maybe I can export a file to utilize in Google Earth to make a KMZ out of or something. Mike kb8zgl

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G5500 disassembly
by Paul Baldock 21 Jan '10

21 Jan '10

I'm about to disassemble a Yaesu G5550 Azimuth Rotor to replace the Starting Capacitor. Has anybody done this and can give any suggestions? I'm concerned about taking it apart and a million pieces falling out Thanks - Paul

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I: HO-68 Schedule - 24-31 Jan 2010
by Francesco Grappi 21 Jan '10

21 Jan '10

THANK YOU VERY MUCH ALAN FOR YOUR KIND COOPERATION ! 73" Frank IW4DVZ -----Messaggio originale----- Da: amsat-bb-bounces(a)amsat.org [mailto:[email protected]] Per conto di Alan Kung Inviato: giovedì 21 gennaio 2010 18.06 A: amsat-bb(a)amsat.org Oggetto: [amsat-bb] HO-68 Schedule - 24-31 Jan 2010 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 _______________________________________________ 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

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18 el cp yagi
by Bob- W7LRD 21 Jan '10

21 Jan '10

Hello I am refurbishing a 18 element CP yagi. I am not sure of the manufacturer. I opened up the relay switching box and found a lot of moisture (Yes I live near Seattle) in the box. Lots of yuck and rust, on non stainless steel hardware.. The 12V connector is a simple phono plug, which should never be used outside. Before I reinvent the wheel has anyone been here before? Replace the phono plug, sealing everything. In the past I have used a material called 3M5200, a marine sealant, nasty but almost permanent. Suggestions please. 73 Bob W7LRD Seattle

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Landwehr 2m Pre-amp issue
by Vince Fiscus, KB7ADL 21 Jan '10

21 Jan '10

I was suspecting my 2m Landwehr was having problems one day, don't know when it really started having problems, but last night I checked it out. Last night when I was listening to AO-7, when I turned the pre-amp on I got about S 7 of noise and the signals from the satellite were buried in the noise, and I couldn't tell that the signals were boosted much, but I could still hear them with difficulty through the noise. Turning the pre-amp off made hearing the signals easier, due to lack of noise. Obviously since I could still hear stations, RF is still going through the device. Checking it out on stronger fm signals, did seem to amplify them more, but I could tell there was still noise. I don't know much about gaAsFet's but what I guess I'm asking, is when they Fail, could they fail in the noisy position, or when then they fail do they die with no amplification? I guess it could be possible some other component around the gaasfet failed making the device run wild. Maybe dirty relay contacts? The RF sensor still works still works fine. I won't be able to get my hands on it for a while as there is too much snow on the roof yet, and I don't have weak signal noise generators to try to isolated the problems. Landwehr gives you a schematic but they didn't like to reveal too much. The pre-amp is about 16 years old. My 70cm Landwehr which is the same age and gets much more use is chugging away just fine. The 2m pre-amp is under an eggbeater. I don't need a 2m pre-amp on LEO's with the beam. Give me some things to check, Thanks, 73 KB7ADL

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AMSAT-BB January 2010