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

SO-67 Suggestions
by John Papay 30 Jun '10

30 Jun '10

SO-67 is in a mode whereby the uplink audio is repeated as long as the transmitter is turned on. If there is no PL on the uplink, repeated audio will be reduced by about 10db compared to rx noise when no satellite is in view. SO-67 is being turned on for 15 minute periods as conditions permit. If you transmit PL, the repeated audio level will be 10db higher than with no PL, however the PL tone level will also be very high. There is apparently no tone filtering between the receiver and the transmitter. Once you stop transmitting with PL, you will hear rx noise at full deviation. After 2-1/2 seconds or so, the repeated noise/audio level will once again be 10db down. As mentioned in another post, the best way to operate given this configuration is not to use PL and work with the low audio. Since this bird is very strong, low audio is not a big problem. If there are signals with PL, the audio level will jump up 10db so watch your ears. 73, John K8YSE

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ISS APRS Packet Active
by Mani VU2WMY 30 Jun '10

30 Jun '10

Just heard ISS APRS packet active over VU Land during 12:44 pass. Can someone confirm? Mani, VU2WMY

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question
by Dads 30 Jun '10

30 Jun '10

Hi : I sent a couple friends that are interested to the AMSAT website. I told them to look at all the satellites. They found the site had all satellites on it. When they brought up the sats they didn,t put on the sidebands on the linear birds, the up and downlinks . I mean the upper and lower sidebands for these birds. So I sent them to the UK site and they were there. They didn,t have Oscar 68 on there though. Jerry w0sat

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Alinco DJ-G7T as a full-duplex FM Sat rig?
by dave＠k7daa.com 30 Jun '10

30 Jun '10

It's been a while now since I've heard any discussion about this Alinco HT since its debut just over a year ago. The first reviews were fairly negative, with most comments pointing towards immature firmware. I know that Alinco has sent out a number of updates of this HT's operating system since then, but I don't know how important or effective these improvements were. A ham friend of mine bought one about six months ago, and tells me he is very pleased with his, enjoying some 1.2 Gig SF Bay Area repeater systems. He has never used the satellites, though, (yep, it's a pity!) so could not tell me anything about how well this HT accomplishes full-duplex FM sat operation. So, my question to those of you that own this HT and have kept up with the updates: Is this product worth another look? Has it matured sufficiently? I'm probably most interested in how well it performs in full-duplex mode for FM satellites, hence my reason for posting this question here. So what say ye, DJ-G7T owners? Worth it, or not? Is the full-duplex sensitivity and functionality good, or do you have to accept some degradation or other compromises? 73 es tnx in advance, Dave - K7DAA

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Awesome photo of ISS
by andy thomas 30 Jun '10

30 Jun '10

see (from the space education institute, Leipzig): "this we photographed in our observatory yesterday:" http://www.youtube.com/user/SpaceEducation#p/c/BC233E60895D1BE3/0/_JfnLuKsA… 73 de andy G0SFJ

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SO-67 on for the first time over Europe
by OZ1MY 30 Jun '10

30 Jun '10

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

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SO-67 possible active passes 30 June
by OZ1MY 30 Jun '10

30 Jun '10

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

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13 Colonies Special Event Update
by Dave Webb KB1PVH 30 Jun '10

30 Jun '10

Just a reminder about the upcoming 13 Original Colonies Special Event. It runs from July 1 through July 6. Unfortunately, we lost NH due to work commitments, so if there is another station that wants to represent NH, get in touch with me ASAP at kb1pvh(a)amsat.org. Here is the link for more info- http://www.13colonies.info/ Here are the calls to listen for NY- Pete, WB2OQQ/K2A VA- Steve, NL7VX/K2B ( Only available on July 1 and in the AM on the 2nd ) RI --------------------------- CT- Paul, K1PL/K2D DE ------------------------ MD- Bruce, WA3SWJ/K2F GA- Tim, N3TL/K2G MA- Dave, KB1PVH/K2H NJ ---------------------- NC- Mark, N8MH/K2J NH ------------------------- SC- Art, K4YYL/K2L PA- Rich, K3BFS/K2M Thanks, Dave - KB1PVH

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Samuel Morse
by Bruce 30 Jun '10

30 Jun '10

I could not resist forwarding this spam as I found it most amusing that Samuel Morse is still alive and wanting my help to move money from a foreign country. I removed the email address from the spam. Can you say spam in morse code? 73...bruce The Desk Of, Mr. Samuel Morse Fund Manager, Fidelity International, UK . I feel quite safe dealing with you in this important business.Though, this medium (Internet) has been greatly abused, I choose to reach you through it because it still remains the fastest medium of communication. Do accept my sincere apologies if my mail does not meet your personal ethics.I knew that this mail will come to you as a surprise, but please do not be discouraged with my proposal, it was due to how things are moving with me, then i decided to write to you when I saw your contact information in a directory. However, this correspondence is unofficial and private, and it should be treated as such.At first I will like to assure you that this transaction is 100% risk and trouble free to both parties My name is Mr. Samuel Morse, a Fund Manager with Fidelity Investment, UK. I handle all our Investors Capital Project Funds which enabled me to divert 1.2% of Investors Excess Return Capital Funds to our Magellan Trust Funds Account where anyone can be presented to claim the funds. Total sum of Fifteen Million, Seven Hundred and Forty Five Thousand British Pounds (15.745.000)BP has been diverted, representing 1.2% of Excess Return Capital Funds from the Investor Capital Project Funds for 2006/2007 fiscal year. I need a reliable and trustworthy person with whom I can work this deal out so that we can claim the funds as mentioned above. There is no risk attached and the funds in question can never be dictated or traced. Sincerely, Mr. Samuel Morse

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Rulo, Nebraska (EN20) - 30 Jun
by Gail A Mcdaniel 30 Jun '10

30 Jun '10

David and I will be working a few passes tomorrow afternoon from Rulo Nebraska (EN20gb). We will probably work from the Lewis and Clark Camp Site on the Nebraska side of the Missouri River if it gives us a fairly clear view of the passes. We are planning on working the AO-27 pass @ 1922z, SO-50 pass @ 1949z and AO-27 pass at 2102z. If you are looking for a Nebraska contact and can work on of these passes... just let one of us know if you want a QSL card and we will get it in the mail asap- no SASE is required. 73 David(KB0RZE) Gail(KB0RZD)

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