May 2014 - AMSAT-BB - mailman.amsat.org

LituanicaSat-1
by Glenn Miller - AA5PK 01 May '14

01 May '14

Worked K8YSE/7, AC0RA and CO6CBF on the recent LS-1 pass. Keps are off as Doppler was difficult to track and I copied the satellite to -3.5 degrees. Sounds good using NFM. Glenn AA5PK

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Shin-En2 to carry Mode J linear transponder
by M5AKA 01 May '14

01 May '14

Shin-En2 to carry Mode J linear transponder http://amsat-uk.org/2014/04/23/shin-en2-to-carry-mode-j-linear-transponder/ 144 and 432 MHz mixed mode helix antennas http://amsat-uk.org/2014/04/23/144-and-432-mhz-mixed-mode-helix-antennas/ $4.00 Ham Radio Satellite Antenna http://amsat-uk.org/2014/04/22/4-00-ham-radio-satellite-antenna/ Video added to LituanicaSAT-1 FM transponder test http://amsat-uk.org/2014/04/22/lituanicasat-1-fm-transponder-test/ Book now for International Space Colloquium July 25-27 http://amsat-uk.org/2014/04/22/book-now-for-international-space-colloquium/ ---- Trevor M5AKA AMSAT-UK Website http://amsat-uk.org/ Facebook https://www.facebook.com/amsatuk Twitter https://twitter.com/AMSAT_UK ----

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LituanicaSat-1 follow-up
by Ken Swaggart 01 May '14

01 May '14

To amplify my last email, here’s the frequencies I was using for LituanticaSat-1 transponder test (object 39569): Downlink 435.176 MHz FM Uplink 145.950 MHz FM (PL 67.0) 73, Ken, W7KKE

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AO-73 over UK
by Peter Wilson 01 May '14

01 May '14

Just tried to work through AO-73 (22:00) - managed to hear myself briefly, but way off the normal uplink frequency, I had to tune 11Khz higher than normal, then signal suddenly disappeared? Did anyone else experience this? Any ideas? Peter G8KEK

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RV: LituanicaSAT-1
by Hector, CO6CBF 01 May '14

01 May '14

Hello to all! LituanicaSat-1 was sounding very good over the Caribbean (Cienfuegos EL92sd, Cuba). Nice signal for just 150mw! I heard Pete, W2JV and worked Frank, K4FEG. I was running just 5W into an ARROW antenna. Congratulations to the LituanicaSAT-1 team! 73! Hector, CO6CBF / KF5YXV

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LithuanicaSAT-1
by W2JV 01 May '14

01 May '14

Hello, The downlink was strong at 16 degrees at 13:39 U, I heard CO6CBF, well done to the team. 73 Pete W2JV

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W4UOO please email me
by TJ Campie 01 May '14

01 May '14

Mike, I think you subscribe to the list, please send me an email. I'd like to QSL our contact this morning on FO-29. Pardon the bandwidth. 73, W0EA TJ ---- QRP ARCI #14612 | CW Ops #953 | SKCC #4593T NAQCC #3768 | Flying Pigs QRP #2254 http://W0EA.us *Because QRO is too easy (but sometimes required!)*

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New to sats, please listen for me half-duplex
by TJ Campie 01 May '14

01 May '14

Hello all! I am w0ea and I just got an FT817 so I will be joining the mix on the linear satellites. Please help me out us you hear me by giving long calls since I can only tune my receiver. I'm still figuring out the splits and Doppler so please forgive me if I accidentally step on your qso in progress. Hope to work you soon from en41. -- 73, W0EA TJ ---- QRP ARCI #14612 | CW Ops #953 | SKCC #4593T NAQCC #3768 | Flying Pigs QRP #2254 http://W0EA.us *Because QRO is too easy (but sometimes required!)*

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Re: Antenna Question
by Mark Spencer 01 May '14

01 May '14

Hi Doug, I doubt that I have greater understanding of antennas than you do, but I'll give your question a shot. Actually, I have been working on circularly polarizing the ARROWS with the WRAPS lately, a work still in progress but almost complete. So I am throwing out the draft information I have been working on to date. You can circularly polarize a pair of ARROWs and they actually work well together from my experience (one of the reasons I suspect is that the feed system of the individual antennas is very well matched). If you are mounting the two antennas virtually on the same boom (sticking them right next to each other) it might get pretty crowded and interactions complicated. I have mounted two ARROWs separated horizontally about 3 feet apart with pretty good success. I have done this with stock ARROWs, and also with one side with the two meter elements, and the other side with the 70 CM elements (had to drill extra holes for the 70 CM mod), both ways worked about the same. The tricky part is coming up with the right feed lines (the transformer lines and the phasing line). I have a first draft of an article I am working on that describes my latest effort to come up with a polarity switching arrangement for ARROWs with the WRAPS, it can be downloaded here (if you have download issues, let me know and I'll try and get it to you another way). Click here to view Circling the WRAPS <https://www.dropbox.com/l/xvKKUtfwUN5gFhGyCiXjua?> I will be adding to the conclusion of the piece some suggestions on where to include an external diplexer in the line to handle the single feed line issue that you mention in your post. Anyway, I hope this will stimulate some ideas. Mark Mark Spencer, WA8SME 860-381-5335 mspencer(a)arrl.org

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LituanicaSAT-1
by PY5LF 01 May '14

01 May '14

Hi The LituanicaSAT-1 has just passed over South America working nicely . Only the signal is a little weak . 73 PY5LF Luciano Fabricio Curitiba-PR-BR GG54jm <http://www.qrz.com/db/PY5LF> http://www.qrz.com/db/PY5LF

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