[amsat-bb] SO-67 1 June possible active passes
01/07/2010 Europe 07:53:00 09:07:00 North America 15:50:00 17:25:00 Brazil 11:20:00 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] SO-67 possible active passes 30 June
30/06/2010 South Africa 08:29 Europe 09:46 Brazil 11:39 13:15 North America 14:35 16:10 17:45 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] SO-67 on for the first time over Europe
Hi all, Just had a pass with AOS at 0946 UTC here in Copenhagen. It works as described on the page: http://www.amsatsa.org.za/ It means that you do not need the PL-tone once the transponder is started. In fact do not set the tone ON. The transponder sounds better without the tone. As before use FMN on the uplink - and turn the AF gain down until your modulation sounds good to yourself. Use of high power also seems to distort the audio on the downlink. This is just the experience from one short pass :-) The list on the homepage above may not be up to date all the time. When we receive confirmed lists from the control station we will publish on amsat-bb. Depending upon the time of the day - may need to sleep every now and again. This week until Monday next week I have only asked for morning passes over Europe. Next week I will ask for afternoon passes as well when the satellite is in Sun. Please remember we are just passengers on Sumbandilasat. If there are other tasks they take priority. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: Technical question AO-51
Hi, The sensitivity is -117 dBm for 10 to 12 dB SINAD. 73 OZ1MY Ib - Original Message - From: Andrew Glasbrenner glasbren...@mindspring.com To: Robin Theunis robin...@gmail.com Cc: amsat-bb@amsat.org Sent: Thursday, June 10, 2010 12:43 AM Subject: [amsat-bb] Re: Technical question AO-51 Robin Theunis wrote: 1) In V/S mode What is the average output power? About 1.5 watts. 2) What kind of antenna is used on 2.4GHz and 1.3Ghz? A dual band antenna built by Stan Wood WA4NFY. http://n4hy.smugmug.com/AMSAT/AO-51-ECHO/Antennas/ 3) What is the sensitivity of the 1.3Ghz receiver? I don't have these numbers at hand, but it's not super. The L receiver is actually the same receiver as HF, i.e. an all band, all mode type synthesized receiver. 4) Some where I reeded that AO-51 has an HF receiver? If it true, for what is the purpose? We initially wanted to try 28MHz/435MHz PSK31, but with the short antenna, and extra losses in a last minute hardware change, this mode does not work very well. 73, Drew KO4MA AMSAT-NA VP Operations ___ Sent via amsat...@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...@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
[amsat-bb] QRM from Italy on AO-27
Hi in Italy, I just listened to a pass of AO-27 with AOS at 1406 UTC here in Copenhagen. There were 2-3 Italian stations on in terestial communications. They were radio amateurs using calls - but too fast for me to make out. IW9??? and IZØ???. I am not sure but may be it is a repeater. There were a distinct 67 Hz tone on. I could make out two city names: Catania and Modena. If some satellite users know what it is please try to make them stop. Have a nice Sunday. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: New HO-68 sked
Hi all, It was in FM mode here with AOS in Copenhagen 1657 UTC. 73 OZ1MY Ib - Original Message - From: i8cvs domenico.i8...@tin.it To: John Neeley w6...@att.net; amsat-bb amsat-bb@amsat.org Sent: Sunday, May 23, 2010 6:39 PM Subject: [amsat-bb] Re: New HO-68 sked Hi John, W6ZKH Usually Alan Kung was sending the new weekly sked for HO-68 on saturday. 73 de i8CVS Domenico - Original Message - From: John Neeley w6...@att.net To: amsat-bb amsat-bb@amsat.org Sent: Sunday, May 23, 2010 5:41 PM Subject: [amsat-bb] New HO-68 sked Anyone know when Alan will send out the new weekly sked for HO-68, as last weeks is now out of date. I am guessing it will be in the FM configuration, but that is again, just a guess.. John W6ZKH ___ Sent via amsat...@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...@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...@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
[amsat-bb] Re: [Fwd: Re: Re: AO-51 mode change 5/17/10 around 1120utc]
Hi group, I just listened for the pass with AOS here at 1557 UTC. Nothing on either of the transmitters. Hope you had a nice time at Dayton. 73 OZ1MY Ib - Original Message - From: Andrew Glasbrenner glasbren...@mindspring.com To: Amsat-BB amsat-bb@AMSAT.Org Sent: Monday, May 17, 2010 4:29 PM Subject: [amsat-bb] [Fwd: Re: Re: AO-51 mode change 5/17/10 around 1120utc] John Neeley wrote: Nothing heard on West Coast pass a/o 1315 utc. W6ZKH Thanks John, We are having problems getting the satellite through eclipse with the transmitter on. Further reports are appreciated for both the 435.300 and .150 transmitters. 73, Drew KO4MA ___ Sent via amsat...@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...@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
[amsat-bb] Report page up and running again
Hi all, The report page is up and running again. Thanks to KD5QGR, David, for the fast action. Please use it as much as possible. It gives a nice overview of which satellites are working. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: FO-29 transponder ON
Hi Mineo, It worked very well at pass with AOS here in Copenhagen 1725 UTC. Thanks to JARL 73 OZ1MY Ib - Original Message - From: Mineo Wakita ei7m-...@asahi-net.or.jp To: amsat-bb@amsat.org Sent: Thursday, January 28, 2010 4:52 PM Subject: [amsat-bb] FO-29 transponder ON JARL says: We turned on an analog transponder in 11:22 UTC on January 27. We want to confirm the battery budget by the decrease of the eclipse rate. JE9PEL, Mineo Wakita ___ Sent via amsat...@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...@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
[amsat-bb] OSCAR 27 is not AO-27
Hi all, This may be known to some of you - but it has given me problems sometimes. OSCAR 27 is a different satellite than AO-27. OSCAR 27 is catalog number 18361. AMRAD-OSCAR-27 (AO-27) (AKA EYESAT) is catalog number 22825. OSCAR 27 is in the Transit series of satellites (NAVSAT). Other satellites in this series carry the OSCAR name and a number. I had this problem at a summer course in satellite technology for students from many countries. I said to them that they could use the keps for AO-27 for a project. AO-27 has a nice nearly circular orbit :-) Then they used OSCAR 27 - and I did not understand the the difference in the expected results in the start. Some lists of keplerian elements use EYESAT for AO-27. If you Goggle OSCAR 27 you get a lot of hits that are really AO-27. Greetings from Copenhagen. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] HO-68 is now on the report page
Hi all, David, KD5QDR, has included HO-68 on the report page now :-) http://oscar.dcarr.org Hope you will use this page to let us have a possibility to see which satellites are active. Thanks to David. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: AO-51 mode update
Hi Drew, That is much better :-) Worked like last time this mode was on. Just had a pass with AOS at 1241 UTC here in Copenhagen. Two QSO's - SQ7DQX and UA9UIZ. Thanks. 73 OZ1MY Ib - Original Message - From: Andrew Glasbrenner glasbren...@mindspring.com To: Amsat-BB amsat-bb@amsat.org Sent: Wednesday, December 30, 2009 12:51 PM Subject: [amsat-bb] AO-51 mode update This morning I switched the satellite back to normal mode for a bit with the 145.92/435.3 repeater on, set power levels on both 435.3 and 435.15 transmitters to 450mw and 500mw, and reenabled the SSB/FM repeater. I believe the higher power on the SSB/FM repeater running alone was causing some of the interference issues and odd behavior we have been hearing and getting reports about. I did also briefly listen to the 145.88 uplink in FM and there was non-amateur QRM there. Let me know if this sounds more like the way this mode sounded last time we ran it. Twitter and the AMSAT AO-51 schedule page also updated. 73, Drew KO4MA AMSAT VP Operations ___ Sent via amsat...@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...@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
[amsat-bb] Re: 435.494 MHz CW
May be this one: 09:48 UTC strong CW beacon on 435.490MHz rs38 ubs189 uab176 [DATA] rs38 ubs188 uab177 ibs17 iab110 isp0 tab156 tsep146 tuf0 tbi167 tspa134 tspb255 mcon69 sma115 smb111 mra11 mrb14 rs38 ubs189 uab177 ibs17 iab130 isp22 tab156 tsep146 audio file of a complete beacon record (4 min) here: http://www.dk3wn.info/p/?p=10401 http://www.dk3wn.info/p/?p=10401 73, Mike DK3WN 73 OZ1MY Ib - Original Message - From: Andrew Rich vk4...@tech-software.net To: amsat-bb@amsat.org Sent: Wednesday, December 30, 2009 1:17 PM Subject: [amsat-bb] 435.494 MHz CW I was hunting for OH-68 (XW-1) And I came across some CW on 435.494 MHz I can't seem to marry it up with another bird. It did not have the TTT like XW-1 had. Andrew VK4TEC ___ Sent via amsat...@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...@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
[amsat-bb] Re: AO-51 mode change and recommendation
Hi Alex and Mateusz, As you write it behaves strange ? At the pass with AOS here in Copenhagen at 1318 UTC it seems like some stations are using very HIGH power and that may be the problem.I could hear Mateusz and UA9UIZ - but as you said the audio was very low. Another thing I experienced was a complete cut of of the downlink ?? I thought it was local QRM at first - but may be it was the satellite. Did you hear the same ?? Last time it was in this mode it worked OK. 73 OZ1MY Ib - Original Message - From: Mateusz sq7...@poczta.onet.pl To: amsat-bb@amsat.org Sent: Tuesday, December 29, 2009 1:08 PM Subject: [amsat-bb] Re: AO-51 mode change and recommendation Attempted to use this mode on 2 passes but was not successful. Several stations tried to work on the first pass over Australia (07:51 UTC 29 Dec) but audio was very weak and there was a lot of interference on the signal. Some stations had difficulty netting onto frequency, probably because they could not hear themselves clearly. On the second pass I could hear no other stations attempting to access and while the downlink signal was strong there were all manner of noises present and only once or twice could I actually hear my voice among the noises. I'm sure that last time AO-51 was in this mode it worked reasonably well. Will be interested to hear reports from other continents to see if the interference was specific to this region. 73 Alex / VK5ALX Hallo I tried at today morning and at the noon. At the morning i heard SQ1 station but I did not finish qso. At the noon I was copied by UA9UIZ and OZ1MY but I am not sure raport from Ib (57 I can hear on record) and locator given by UA9UIZ is not NO46 but NV46 (distortion?). Signal is realy week from USB/FM transponder probably due to latest magnetic torque experiment and changed antenna orientation on norhern hemisphere. It sounds like fraction of one watt, not like almost 2W transmitter. Here is a record (cut, too much noise): http://www.enduro.idl.pl/audio_sat/ao51_ssb_fm.mp3 and sorry for too low quality of sound. Signal is low (I know, 53 is a little too optimistic) but I did it :) Matt SQ7DQX ___ Sent via amsat...@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...@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
[amsat-bb] AO-7 in mode-B
Hi all, On the pass with AOS here in Copenhagen at 0752 UTC it was in mode-B :-) Merry Christmas and Happy New Year to everyone. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] XW-1 linear transponder frequencies here
Hi all, Tried it for the first time this evening. I only had to change the downlink setting +200 Hz to hit the correct frequencies. You may experience differently with other radios. I use an IC-910. ICOM seems to display frequencies differently from the professional standard so that you have to be like 600 Hz to 800 Hz off the nominal carrier frequency in USB and LSB on the display. As far as I know the carrier frequency is used for professional radios. Great satellite. May it have a long life :-) 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: unable to use HO-68 JO91RR
Hi all in Europe, I do not think anything was wrong with the satellite - but there may have been 100's of stations on. The first time it was on it worked very well. This time I heard at least 3 stations getting through. During the first time it worked we made many more QSO's and I have not changed my setting since then. I could not get in as well. May be those who got through can tell us what they used in terms of frequency settings, PLL tone and power (EIRP) ? Merry Christmas and A Happy New Year to all. 73 OZ1MY Ib - Original Message - From: Mateusz sq7...@poczta.onet.pl To: amsat-bb@amsat.org Sent: Monday, December 21, 2009 9:18 PM Subject: [amsat-bb] unable to use HO-68 JO91RR I was trying, even with full power with no effect. Signal from transponder was noisy but strong (HB9 and IK...), i thing they had problems too. Matt SQ7DQX ___ Sent via amsat...@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...@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
[amsat-bb] SO-67 passes over Europe Saturday and Sunday
Hi all in Europe, The active passes are: 19-12-09 07:56:00 EU Central/East 19-12-09 11:05:00 EU West/Atlantic 20-12-09 07:36:00 EU Central/East 20-12-09 09:10:00 EU Central/West 20-12-09 10:44:00 EU West/Atlantic Please note that it is just a plan. It may be changed if the controllers have other more urgent things to do. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] XW-1 heard over Europe again
Hi all, Can confirm Christians report. CW beacon on. Had to go down on the downlink frequency. To start with - 600 Hz when using USB. Had to follow down during the pass until TCA, then up again. Used an additional - 2.1 kHz at TCA. Keps may be a little off. Nominel published frequency 435.790 MHz. Congratulation to AMSAT-China 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] XW-1 again over Europe
Hi all, It works great. Thanks to Nigel for the new keps for Object A: XW-1 1 36121U 09072A 09349.53641119 -.0045 0-0 0+0 031 2 36121 100.5050 046.6267 0007989 035.4736 324.6735 13.1639108550 I changed the name from Object A to XW-1 :-) It works on SatPC32 and NOVA for Windows. On the pass with AOS at 16:45:50 UTC here in Copenhagen the tone did not change (to my old ears) over the whole pass. Used 435.789400 MHz as the center frequency on the IC-910 in USB. The usual ICOM offset in USB. Nice 20 minute passes and long range. Looking forward to the transponders. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] SO-67 Monday, Tuesday and Wednesday
Hi all, Wednesday it was not on (I think). The two other days it worked very well. The general picture is that at the start to the North is easy to work :-) Once it gets further South it gets more crowded - but that is only to be expected. More people can reach it. Some operators have still not found out to use less deviation. May be they do not read the -bb ? Perhaps those of you who read this could tell those that do not. Or get the information in your national magazine. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Report page now includes SO-67
Hi all, KD5QGR, David, has included SO-67 on the report page: http://oscar.dcarr.org/index.php It would be nice to have reports on SO-67 and the other satellites from all over the World. Many do it already - but there are areas with few reports. The more we are the better the information :-) 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: 08/12/09 0205utc AO-51 pass
Hi John, I heard it 40 minutes later OK 73 OZ1MY Ib - Original Message - From: w6...@comcast.net To: amsat-bb amsat-bb@amsat.org Sent: Tuesday, December 08, 2009 3:21 AM Subject: [amsat-bb] 08/12/09 0205utc AO-51 pass Nothing heard from that West Coast Pass at this station. Anyone else that didnt hear it, or is my receiver gone belly up? JOhn W6ZKH ___ Sent via amsat...@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...@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
[amsat-bb] 3 passes of SO-67 today, Saturday over Europe
Hi all, SO-67 worked very well today with large downlink signal. The first pass was to the East of me - with SP5MG and myself on. This is the first time I have actualle seen the effect of the 3 second tail. The transmitter stayed up for those 3 seconds - very easy to see on the S-meter. The two next passes was the same as before. As Danni says in his e-mail, take the tail into account when working SO-67 :-) Please observe good operating practice for FM repeater satellites For SO-67 there is one more thing. Do not use a normal old deviation - use FM Narrow and turn down the mike gain. And perhaps even one more thing - when you have made a QSO on this new satellite - give way to others who have not :-) Have a nice weekend all. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: Interference in Spain
Hi Lino, I know you use SO-50 as well. With the subtone system we just can not hear, what is going on. Powerfull stations without a subtone just makes the transmitter go off. Since they do not use the subtone we can not hear who they are. Thanks for the QSL cards. They arrived from the buro today. There are some on the way for you via the buro. I made them today. 73 OZ1MY Ib - Original Message - From: Lino IK1SOW ik1...@tele2.it To: amsat-bb@amsat.org Sent: Tuesday, December 01, 2009 5:12 PM Subject: [amsat-bb] Re: Interference in Spain To perhaps resolve the problem of the Spain interference, the audio subtones could be used for the uplink? Lino, IK1SOW ___ Sent via amsat...@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...@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
[amsat-bb] Re: morning pass AO-51
Hi Mateusz, It sounds like Spanish to me. I heard it during the pass also. In Spain some people use the 2 meter band for privat talk. They are not necessarily radio amateurs. It is an old story :-( I tried to contact the Spanish authorities - but they do not do anything. It is often worse on the AO-27 uplink at 145.850 MHz. Sometimes they block SO-50 - but you can not hear it - however they make it drop out. 73 OZ1MY Ib - Original Message - From: Mateusz sq7...@poczta.onet.pl To: amsat-bb@amsat.org Sent: Monday, November 30, 2009 9:32 AM Subject: [amsat-bb] morning pass AO-51 Hallo Today morning I recorded signals from AO51 downlink with my call and a station in background: www.enduro.idl.pl/audio_sat/AO51_30_11_09_0754UTC.mp3 Elevation was 3 deg and lower. Station heard in background probably doesn't know that transmits within satellite part of 2m band, maybe it is not amateur? Matt SQ7DQX ___ Sent via amsat...@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
[amsat-bb] Maximum distance for the LEO satellites
Hi all, Interesting to see the talk about distance records. Just for fun I tried to find the best case distance for the different satellites. Conditions for the calculations: Used NOVA for Windows to find the maximum height. Used Jan Kings Spreed Sheet to find Slant Range with an elevation of 0 degrees. Multiplied by 2 to get maximum distance between two stations. Sat. Max. Height Slant Range Max. Distance between stations AO-51 817 km 3300 km 6600 km SO-50 690 km 3046 km 6092 km AO-27 800 km 3293 km 6586 km AO-Ø7 1459 km 4552 km 9104 km FO-29 1322 km 4314 km 8628 km VO-52 643 km 2935 km 5870 km SO-67 506 km 2591 km 5182 km XW-1 1200 km 4092 km 8184 km Hope it is right :-) 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] SO-67 over Europe 0832
Hi all, Just to tell that it was on as scheduled :-) But - please turn modulation down. Use FMN and or speak soft to the microphone. You can hear it yourself. The signal is very distorted and even fluctuating in signal strength. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: SO-67 28Nov2009 1340-1345z
Hi John, It was not on during the pass over Europe either. That should have been with start 1027 UTC. Hope for tomorrow. Have a nice weekend. 73 OZ1MY Ib - Original Message - From: John Papay j...@papays.com To: amsat-bb@amsat.org Sent: Saturday, November 28, 2009 2:54 PM Subject: [amsat-bb] SO-67 28Nov2009 1340-1345z SO-67 was not heard over the eastern USA as scheduled. It could be that there was a problem with my receiver but it was working on the earlier AO-51 pass. Did anyone else hear SO-67 this morning? 73, John K8YSE ___ Sent via amsat...@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...@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
[amsat-bb] Re: new sat
Hi Jerry, Take a look at: http://www.amsat.org/amsat-new/satellites/satInfo.php?satID=116retURL=satellites/futures.php Its name is XW-1 73 OZ1MY Ib - Original Message - From: Dads w0...@msn.com To: amsat-bb@amsat.org Sent: Saturday, November 28, 2009 6:25 PM Subject: [amsat-bb] new sat Hi : What type of satellite is the VW-1 amateur satellite that the china launched Jerry w0sat ___ Sent via amsat...@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...@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
[amsat-bb] ISS nice visible pass over Europe
Hi all, ISS has some very nice visible passes over us during these days. Just looked at the pass with AOS at 1540 UTC here from Copenhagen. No clouds for a change :-) Max. elevation for this pass for me was 36 degrees. Have a nice weekend all. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Linear transponder versus FM transponder for LEO satellites
Hi, The e-mail from I8CVS brings the issue up again. Why not just be happy to get one more transponder for us to use ? If you do not want to use a FM transponder so that be it. It is interesting to note that there are far more operators on the FM transponder satellites than on the linear satellites in Low Earth Orbit. Anyway the choice is made by the ones who make and finance the satellites and transponders. With a height of 500 km FM is probably the way to go. The dopper shift is large. It may be a bad choice for a linear transponder unless you assume that everyone are using full doppler tracking :-) Sumbandilasat it a very good satellite for operators working portable or mobile. The downlink is strong and it will be better to use it once things settle down. Every time we have a new satellite we have very many wanting to try it out. I think we should say thank you to our friends in SA for a new one. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] SO-67 over Europe thanks for test
Hi all, SO-67 worked great over Europe this morning. The downlink signal is the largest I have seen for years :-) I used FMN with mike gain turned down. That is far the best way to work the uplink. Some stations with a too wide deviation even made the downlink change amplitude - or cut it off. I used normal FM on the receive side. Worked G3VZV and IZ1ERR. Lots of other stations on. Thanks for a new satellite for us to use. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: SO-67 over Europe thanks for test
Hi Kostas, If you do not have FMN on your radio, turn the mike gain down and/or do not shout :-) 73 OZ1MY Ib - Original Message - From: Kostas Ioannidis kostas.ioanni...@gmail.com To: OZ1MY oz...@privat.dk Sent: Saturday, November 07, 2009 12:20 PM Subject: Re: [amsat-bb] SO-67 over Europe thanks for test Goodmorning, As the previous operator said thank you a lot for this great sounding sat! It was booming all tha pass. A lot of traffic on the air! But the narrow FM is an issue for those who do not use it... 73 de SW1IXP ___ Sent via amsat...@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
[amsat-bb] Re: SO-67 over Europe thanks for test
Hi Roger and the -bb, From memory it takes up less than 12.5 kHz which is the channel spacing on 2 meters (In Region 1 at least). Frequency deviation like 2.5 kHz (old 3.5 kHz and even some have 5 kHz deviation). It is the frequency deviation that is a the issue with SO-67 (I think). If you run too high deviation on the uplink the LF to the transmitter will make it deviate too much. Even for a normal (old) setting on the receive side. The Carson rule says: Signal Bandwidth = 2 times (Deviation + modulation frequency). Did that help ? 73 OZ1MY Ib - Original Message - From: Roger Kolakowski rogerk...@aol.com To: OZ1MY oz...@privat.dk; Kostas Ioannidis kostas.ioanni...@gmail.com; AMSAT-BB amsat-bb@amsat.org Sent: Saturday, November 07, 2009 3:03 PM Subject: Re: [amsat-bb] Re: SO-67 over Europe thanks for test How narrow is FMN? Roger WA1KAT - Original Message - From: OZ1MY oz...@privat.dk To: Kostas Ioannidis kostas.ioanni...@gmail.com; AMSAT-BB amsat-bb@amsat.org Sent: Saturday, November 07, 2009 6:40 AM Subject: [amsat-bb] Re: SO-67 over Europe thanks for test Hi Kostas, If you do not have FMN on your radio, turn the mike gain down and/or do not shout :-) 73 OZ1MY Ib - Original Message - From: Kostas Ioannidis kostas.ioanni...@gmail.com To: OZ1MY oz...@privat.dk Sent: Saturday, November 07, 2009 12:20 PM Subject: Re: [amsat-bb] SO-67 over Europe thanks for test Goodmorning, As the previous operator said thank you a lot for this great sounding sat! It was booming all tha pass. A lot of traffic on the air! But the narrow FM is an issue for those who do not use it... 73 de SW1IXP ___ Sent via amsat...@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...@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
[amsat-bb] Re: FW: Sumba Test Schedule
Hi Piraja, Most probably they just upload a job to Sumbandila to be executed at the specified time. That is done by the control stations in SA. Just speculation on my part. Have a nice Sunday. 73 OZ1MY Ib - Original Message - From: ps8rf Piraja ps...@hotmail.com To: amsat-bb@amsat.org Sent: Sunday, October 25, 2009 3:22 PM Subject: [amsat-bb] FW: Sumba Test Schedule Hello Piero, The times reported on the website of SA AMSAT ( http://www.amsatsa.org.za ) and with the time told by Mike, DK3WN (thanks Mike) do not correspond with the schedules resulting from my simulations. For the Sumba not go active on Europe the satellite had to be activated and deactivated in the region of Africa the same would happen to North America, but I do not know if someone has the privilege of controller in North America to enable and disable the transponder. I do not know if I was wrong or the controlers team of Sumba have mistake with respect to time and the regions reported. 73, Piraja, PS8RF. Date: Sat, 24 Oct 2009 13:11:02 +0200 From: pbaud...@formatnet.it To: ps...@hotmail.com Subject: Re: [amsat-bb] Sumba Test Schedule ps8rf Piraja ha scritto: The SA Amsat warns on its website that tomorrow 24th October, will test the tranponder of SumbandilaSat. Some regions of the planet will have the privilege. So, good luck. Test Schedule 24 October all times in UTC: 07:35 – 07:46 (over Eastern part of Southern Africa) 09:06 – 09:21 (over central part of Southern Africa) 19:52 – 20:03 (over Western part of Canada / North America) 20:42 – 20:55 (over Eastern part of Southern Africa) 22:15 – 22:27 (over central part of Southern Africa) Hi Pirajá, when another test over central Europe ? '73 de Piero IZ1ERR _ Você sabia que pode acessar o Messenger direto do seu Hotmail? Descubra como! http://www.microsoft.com/brasil/windows/windowslive/products/tutoriais.aspx ___ Sent via amsat...@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...@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
[amsat-bb] FM satellite operations again again over Europe
Hi all in Europe, It is obviously about time to repeate a few good points about operating via the FM repeater satellites. 1. Do not transmit if you can not hear it 2. When the satellite is busy - limit the number of QSO's to ONE 3. Do not call over an ongoing QSO 4. A valid QSO just needs the call and the report 5. Give way to weak stations like /p and /m 6. Allow DX-peditions to make as many QSO's as there are callers That was the short version :-) I have a long version in English, Italian, Russian, Spanish and French. I can send it to you if you want it. Could use a few other languages like Greek, Polish and others. It would be nice if you can get it in your national journals. And please no flames ! 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] AO-51 repeater uplink on 145.880 MHz
Hi all, The uplink right now is on 145.880 MHz. It may change later. 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] FO-29 problems ?
Hi all, FO-29 seems to be OFF ? There are reports on http://oscar.dcarr.org to indicate that. During a pass with AOS at 1910 UTC here in Copenhagen with a max. elevation of 30 degrees, I heard no signals from FO-29. There was some noise at 435.850 MHz (corrected for doppler shift) in the start of the pass - but that was all ? It may be something local. I did check 435.910 MHz as well - and no signal. Has anyone heard anything ? 73 OZ1MY Ib ___ Sent via amsat...@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
[amsat-bb] Re: Use of ICOM 910 for AO-51 L-Band BBS Uplink?
Hi Jim, I use the same setup - but for analog uplink. Antennas are two 19 turn helix stacked about 2 wavelength above one another. The combined gain is 18 dBiC. That works most of the time - but EIRP is a bit low when AO-51 is at 3000 km range. For the digital uplink I think you need more EIRP. Either add a PA with 30 to 50 W out or larger antenna(s). 73 OZ1MY Ib - Original Message - From: Jim Heck jiml...@milnet.uk.net To: amsat-bb@amsat.org Sent: Thursday, August 20, 2009 11:05 AM Subject: [amsat-bb] Use of ICOM 910 for AO-51 L-Band BBS Uplink? Hi Folks, I would be interested to know if anyone is using an ICOM 910 with the L-Band module for Ao-51 uplink on the BBS? (The optional L-Band unit for the 910 runs 10 watts according to the book). I am particularly interested to know what type/gain of antenna I would need to get a reliable up link. I am planning to use about 20 metres of Ecoflex 10, which will introduce a loss of something like 3 Dbs. I know that the LBand/Digital up link is currently off, just gettting ready for the next 'on' period! 73s Jim G3WGM ___ Sent via amsat...@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...@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
[amsat-bb] Re: Arrow Antennas twist or not
Hi all, I think we need some clarification. Which satellite(s)are we talking about, when receiving with the ARROWS antenna ? The ARROW antenna are linearly polarised. What latitude is your QTH ? Regarding satellites - some have linear polarisation - some have circular polarisation. AO-51 has Right Hand Circular Polarisation on the normal repeater downlink (435.300 MHz), SO-50 has linear polarisation - the same applies to AO-27. The satellites attitude are stabilised with permanet magnets. This may give different results depending upon where you are. Here in Copenhagen it is a great advantage to twist the ARROWS antenna to improve the downlink signal from AO-27. We are close to the North Pole (hi) Everyone may be right :-) 73 OZ1MY Ib - Original Message - From: Roger Kolakowski rogerk...@aol.com To: Clint Bradford clintbra...@earthlink.net; amsat-bb@amsat.org Sent: Sunday, August 16, 2009 11:34 PM Subject: [amsat-bb] Re: Arrow Antennas I will say that I can improve my 437 reception by rotating the beam...I also have gotten better signals by aiming the beam at a point on the ground 100 feet away... Why criticize? Everyone else can do anything they want to their antennas without me getting upset...afterall, it's not MY antenna. Now if someone wants to point me toward scientific theory, antenna modeling programs, propagation theory...then I can stand up and listen...until then, my best signal is most important to me. Roger WA1KAT Roger WA1KAT - Original Message - From: Clint Bradford clintbra...@earthlink.net To: amsat-bb@amsat.org; amsat-bb@amsat.org Sent: Sunday, August 16, 2009 4:19 PM Subject: [amsat-bb] Re: Arrow Antennas ... Why are we modifying the Arrow? ... Because someone's analysis says the element length is all wrong ... So Al Lowe's software program which he used to design these is all wrong? Sorry to get defensive on Al's behalf. This thread just feels like a re-hash of an engineer's view vs. real world results argument. Like when I was told here - by engineers - that it mattered how I twisted my Arrow while working the sats. Ya gotta take polarization into account, Clint - there's a 22db difference when you turn your antenna 90 degrees - a tremendous performance hit if you don't take this into account ... Yet in the real world of demonstrating workin' the birds, there's no such performance degradation. I have hundreds of witnesses to this fact: Capture SO-50 and AO-51 with the Arrow and operate TX and RX while twisting the antenna in different angles doesn't change the great reception and transmission quality. If you are in the market for an Arrow, I simply suggest that you use it as offered to you. You will be pleased with its 2M and 440 amateur bands performance. And leave the modding of the elements w-a-y on the bottom of your things to do lists. Clint Bradford -- Clint Bradford, K6LCS http://www.clintbradford.com ___ Sent via amsat...@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...@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...@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
[amsat-bb] Re: AO-51
Hi Roberto, Yes - you are right - but we are working on getting it back. 73 OZ1MY Ib - Original Message - From: Roberto iw5...@alice.it To: amsat-bb@amsat.org Sent: Monday, July 27, 2009 10:30 AM Subject: [amsat-bb] AO-51 SAT - AO51 , not heard europe ? http://oscar.dcarr.org/ 73 de iw5bsf Roberto Coordinator A.R.I Satelliti http://www.webalice.it/iw5bsf/ ___ Sent via amsat...@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...@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
