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

Ebay item sold
by John Price 22 Oct '10

22 Oct '10

The IC-1200 Icom 1.2 ghz rig is sold on eBay. Thanks -- N4QWF Amateur Radio Operator AO-7,AO-27,FO-29,SO-50,AO-51,VO-52,ISS Email N4QWF(a)AMSAT.ORG Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il >From the Foothills of the Blueridge *Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - "WOW, What a ride!"

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IC-1200 1.2 ghz rig on eBay
by John Price 21 Oct '10

21 Oct '10

If interested please view this link. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=270652661518 thanks << John -- N4QWF Amateur Radio Operator AO-7,AO-27,FO-29,SO-50,AO-51,VO-52,ISS Email N4QWF(a)AMSAT.ORG Formerly KC4AHW VK3FEZ Amsat Member #27845 DXCC #33,478 VUCC SAT #135 WAS SAT #296 51 on AO-51 #13 LON -79.256 LAT 37.459 Grid FM07il >From the Foothills of the Blueridge *Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming - "WOW, What a ride!"

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Mutek 736 boards
by Bob Schmidt 21 Oct '10

21 Oct '10

Does anyone have a source for the Mutek RPCB 736 boards. I don't think they are being made anymore. If not, are there other options that are similar to these boards? TNX Bob, WA9JDR

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HO68 live monitor on
by PA3GUO 21 Oct '10

21 Oct '10

http://www.pa3guo.com/webtv.html live audio PLUS now also video streaming of HRD (freq) pass in 5 minutes -- Henk, PA3GUO

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HO-68 pass recording needed.
by Tom Schuessler 21 Oct '10

21 Oct '10

Hello all, Did anyone manage to get a pass recording of the 16 October 2010 1740 something pass over North America this past Saturday. I was doing demos as K2BSA/5 at the National Scouting Museum in Irving, TX and with all the explaining I was doing for onlookers, did not start my recorder. Want to QSL those we worked. Thanks much. Tom Schuessler 2713 Lake Gardens Irving, TX 75060 <mailto:[email protected]> N5HYP(a)arrl.net <mailto:[email protected]> tjschuessler(a)verizon.net <mailto:[email protected]> tschuessler(a)nbfirving.net

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AMSAT Table/Demo @ Great Lakeshore Super Swap - Oct 16th
by Doug Papay 21 Oct '10

21 Oct '10

All, There will be an AMSAT table at Holland Amateur Radio Club's Great Lakeshore Super Swap in Holland, MI tomorrow, Saturday Oct 16th. My father (John K8YSE) and I (Doug KD8CAO) will be available to discuss AMSAT and demonstrate satellite operation. We will be active on all satellites FM & SSB during the hamfest which runs from 1200z to 1600z (8AM to 12PM local time). In addition to the V/U and U/V satellites, we will be on AO-7 in Mode A. We would appreciate your call, especially if you have the ability to work us on Mode A. For those in West Michigan that would like more information about the swap, see URL: http://www.hollandarc.org/wp-content/uploads/2010/08/2010-Swap-Flyer.pdf. **Don't forget to check the AMSAT Area Coordinator Calendar of Events page at URL: http://www.amsat.org/amsat-new/fieldops/events.php for a calendar of additional events staffed by AMSAT area coordinators. 73, Doug KD8CAO

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vacation/grid trip
by wa4hfn＠comcast.net 20 Oct '10

20 Oct '10

Again thanks to all who made contact with me, I am home and if you need a card for any of the grids, please email your contact info to wa4hfn(a)comcast.net WA4HFN Damon

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Polarization Issues
by Clint Bradford 20 Oct '10

20 Oct '10

>From my in box ... I will forward all replies to him! Thank you. -Clint A note on my activity and my station. I started working SAT the same way I did CW: 3QSOs, 2SATs in a month, a couple of months in a year... Then the wind suggested to me to reduce (2x2x11VHF, 4x2x20UHF) the antenna system and I am actually putting up: - VHF, 2x11 at 45/135deg, lambda spaced, hybrid ring power divider, 0.25lambda delay section (for CP) added on one of the two identical length cables; - UHF (will be mounted "next week"), 2x20 at 45/135deg, 2xlambda spaced, 2x0.25lambda air dielectric (vf=1) power divider, delay section (for CP) not yet determined; - SHF, 20" dish, offset, 4 turns helical feeder, rirectly connected to low noise (German) converter; only rx and I am looking to sell it; The tower atop the roof is 3m high, 1' triangular, with rotor mast offsetted aside for easy mounting: that is the reason my spacing on 435MHz is so wide, I need the antennas to be far from the tower as the tower is wide. Single h/mast on el rotor to support 1xV 1xU each side, dish at center. Power is 10W (Microwave modules xverter). My sat are SSB ones, maybe FM too. Here comes the question. Circular polarization is hard to achieve; you have to put a delay line exactly (exactly???) 0.25*Vf, that is 13" on 2M and 4.5" on 435Mhz, in-line with one coax line of one of the antennas (after the splitter); if you use a couple of coax connectors 1" error seems easy to achieve. Circular polarization switching is worst, as 1. if you have an asymmetrical - as depicted above - inline delay line (on one side only), how long is to be computed the switching system? and 2. if you choose a symmetrical - either included in the divider or inline on both antenna cables - solution, how can you compute correctly the lenghts / difference of lenghts of the needed (coax, connector, T, relay) items? So the question is: how have you done your polarization switch (I have seen SM and PA hams solutions, but no one consider the problem I oulined here)? And the second part of the question is: do we really need a switching or do we have a recognized standard - LHCP I think - for our sats? Thank you for suggestions, If not clear enough I'll clarify on demand, 73s from Marco, I4MFA - W4MFA

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AO-51 pass 10/20/2010 1640z-1649z should be 2040-2049z
by Jay Kendall 20 Oct '10

20 Oct '10

And of course, the technical joys just keep coming... I meant 2040-2049z. Maybe I should take up stamp collecting. 73, Jay Kendall N2JK -- > I had a recorder failure on this pass, and got nothing. (OK, I forgot to push the button.) > If anybody has a recording from this time period, please let me know...I'd really appreciate it!

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AO-51 pass 10/20/2010 1640z-1649z
by Jay Kendall 20 Oct '10

20 Oct '10

I had a recorder failure on this pass, and got nothing. (OK, I forgot to push the button.) If anybody has a recording from this time period, please let me know...I'd really appreciate it! 73, Jay Kendall, N2JK jaykendall(a)comcast.net

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