AMSAT-BB October 2020

102 participants
152 discussions

EN91/FN01 Line
by Bob Liddy (K8BL) 22 Oct '20

22 Oct '20

I need to run over to PA tomorrow and I'll have a chance to activate the EN91/FN01 Line. Not sure of the timing, but I'll pop up on a few FM & Linear SATs. All Qs will be on LoTW a day or so afterward. ...de Bob K8BL

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2020 AMSAT Symposium - Great Job All Around!
by kc4le＠arrl.net 21 Oct '20

21 Oct '20

Thanks to all of those who contributed their time and talents for this event. Clearly, a lot of work went into organizing the symposium, writing the papers, preparing the presentations and compiling the proceedings. Already looking forward to Minneapolis... Red KC4LE

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Virtual Ham Expo March 2021
by tjschuessler＠verizon.net 21 Oct '20

21 Oct '20

The Virtual Ham Expo is soliciting speakers for the next event in March of 2021. I presented at the one back in August and have signed up again. I wanted to see if someone from AMSAT or Field Ops would like to join me as a co-presenter. I would like to see if we can create a better than last year presentation. Please let me know if you are interested. The presentation part is pre-recorded so editing a video is a good way to go beyond PowerPoint. There is also a Q&A session is live on Zoom. I had 130+ in the Q&A session back in August. Last year, I added a video of working RS-44 from my Driveway. Other things could be done as well. Also they do have an "Exhibit hall" which is a "Pay for your space" deal, but perhaps AMSAT would like to buy a space and we could coordinate a group of us to work the virtual table through the weekend. That would be a good way to help bring personal interaction as is always the case for events like Hamcation, Hamvention and Ham-Com. Now is the time to begin planning and arranging, not 2 weeks before. Let me know what you think and maybe we can investigate further. Tom Schuessler, N5HYP EM12ms

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Kenwood TS-2000 And Falconsat-3
by Tony 21 Oct '20

21 Oct '20

All: Is anyone using the Kenwood TS-2000 to work FalconSat-3? It's been a while, but I believe I used the internal modem to work GO-32 years ago before I sold my Kenwood. If I'm not mistaken, the latest TS-2K's still have the built-in modem. Tony

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70cm Lindy design files & construction notes available on Thingiverse
by Curt Laumann 21 Oct '20

21 Oct '20

Hi All! Over the last couple of months I’ve been having a lot of fun with 3D printing and design, working to make a 70cm parasitic Lindenblad that is easy to manufacture and assemble. I’d like to share the design files with the amateur community, inviting people to build and improve on this design. This design heavily leverages the previous excellent work by Tony Monteiro (AA2TX), who created and published the paper: “A Parasitic Lindenblad Antenna for 70cm” AMSAT Proceedings 2006. The AA2TX design uses a central driven dipole surrounded by four tilted parasitic elements. One of the biggest challenges to construct the AA2TX design is holding the parasitic elements in the crazy geometry defined by a Lindenblad configuration. The AA2TX design used irrigation parts, requiring careful alignment by hand and tedious bonding operations. Today with the availability of 3D printing it is possible to remove literally all the critical alignments, designing these spacings and angles into the 3D printed part! Design files, pictures and construction notes can be found on Thingiverse (search for my call sign K7ZOO). I welcome any ideas for improvement and would really enjoy seeing the results of any construction efforts. de K7ZOO

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Rocket Lab launch postponed until tomorrow
by Wendy and Terry Osborne 21 Oct '20

21 Oct '20

Weather at the Launch site was not good today :(. They are going to try again tomorrow see: https://twitter.com/RocketLab/status/1318041165669699584 73, Terry Osborne ZL2BAC

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Get ready for more space junk
by Zach Metzinger 20 Oct '20

20 Oct '20

Everyone is rushing to put The Cloud into LEO, it seems. This morning's WSJ: "Microsoft Teams With Elon Musk’s SpaceX to Push Cloud Battle With Amazon Into Orbit" https://tinyurl.com/y4q6uy5w > Microsoft would help connect and deploy new services using swarms of > low-orbit spacecraft being proposed by SpaceX, and more traditional > fleets of satellites circling the earth at higher altitudes. > Microsoft’s initiative targeting commercial and government space > businesses, formally launched Tuesday, comes about three months after > Amazon Web Services, the e-retailer’s cloud unit, disclosed its > space-focused effort. Shorter story here, too: https://www.foxbusiness.com/technology/microsoft-teams-with-elon-musks-spac… --- Zach N0ZGO

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RS-44
by Glenn Miller AA5PK 20 Oct '20

20 Oct '20

Worked XE2YWH on RS-44 this morning. Good to hear it's back. Glenn AA5PK

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PO-101
by Chris Pohlad-Thomas 20 Oct '20

20 Oct '20

So, I've not worked PO-101 before, but when I tried to earlier I was getting no voice. I checked on Satnogs and it appears the same for others with this. Are they not doing FM Voice right now? -- Chris Pohlad-Thomas

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G5500 left turn relay failure
by k.swaggart＠charter.net 19 Oct '20

19 Oct '20

My G5500 control box won't command the rotor left, but right works fine. No voltage to the #4 connector when I press "left", but if I put some pressure on the relay the voltage intermittently returns. So, guess the relay contacts are dirty. Looking at the schematic it looks like both the right and left relays are the same, but use different connections. So. thinking I'll just remove and the two and swap relays. (This unit has been in daily use since 2002!) Are these relays available from Yaesu or someone in the US? Did a quick Google and DigiKey search but didn't find them. Just noticed there is a little lid on the top of the relay. When I popped that open there is a lot of black residue on the inside of the lid and I just might be able to clean the contact! Ken, W7KKE

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AMSAT-BB October 2020