August 2006 - AMSAT-BB - mailman.amsat.org

2m antenna
by Wallace Strom 18 Aug '06

18 Aug '06

Hello, I'm looking for an antenna design for 2 meters that is on 22cm tall. I would like to mount the antenna on my car and be able to drive my garage without removing the antenna. Of course I would like to have rhcp to work satellites. I have modeled a couple of cross-loop antenna but can't get the SWR below 3. Questions - should I model for 50 ohm or 100 ohm? Any suggestions would be helpful. 73, Wally KG4YUW

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VERY IMPORTANT!!!
by MARTHA SARAGOVITZ 18 Aug '06

18 Aug '06

FOR THOSE PLANNING TO ATTEND THE 2006 AMSAT SPACE SYMPOSIUM IN FOSTER CITY CA, PLEASE NOTE THAT THE CUT-OFF DATE FOR THE HOTEL IS SEPTEMBER 13TH. AFTER THAT DATE, THE PRICE FOR THE ROOM CAN GO UP. THE HOTEL PHONE NUMBER IS 650-570-5700. OUR BOOKING CODE IS AMS. 73- Martha

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Kenwood 1.2ghz module
by Stargate 18 Aug '06

18 Aug '06

Anyone know if the TS-2000 1.2ghz module can be purchased and installed by the end user? Most websites say it has to be sent to Kenwood for installation. Thanks, RoD KD0XX

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WTB: Dualband Yagi
by John Geiger 18 Aug '06

18 Aug '06

I am looking for a 2m/70cm dualband yagi to use on the satellites, and for some tropo work. Something like the Cushcraft 270-10S would be great. Must use a single feedline. Let me know your price including shipping to zip 73507-Lawton, OK. 73s John W5TD __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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Some rare Washington grids
by Zachary Schrempp 18 Aug '06

18 Aug '06

Hey guys, I am going over to CN77 on Thursday and Friday. I'll see if I can get into CN76, which is one of those grids where just a sliver of it skims the coast. Maybe CN86 too. I'll take the Arrow and run on AO-51 and SO-50. 73, Zach -- Zachary Schrempp, KM7I Age 15 AMSAT #36023

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Re: 8 SSTV pictures received from ISS Space Station.
by Cor 18 Aug '06

18 Aug '06

Hello Felim, I have often e-mail contact with Miles (from www.marexmg.org ). The SSTV pics which I received I also have sended to Miles. 73's Cor PD0RKC http://www.pd0rkc.com >I believe that MAREX Marexmg(a)comcast.net is >the repository for any received >pictures but by all means send them to Cor as >well. >73 de >Félim M3HIM

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8 SSTV pictures received from ISS Space Station.
by Cor 18 Aug '06

18 Aug '06

Hello All, Russian commander Pavel is testing the SSTV equipment aboard the ISS Space Station. The latest ISS SSTV pics where sended on the 145.800Mhz downlink frequency. There are some equipment problems so it is only switched on when Pavel is near the transceiver, mostly in his presleep time on the passes (for his friends) in Moscow. You can see the 8 ISS SSTV pictures on my website: http://www.pd0rkc.com In case someone have more ISS SSTV pics please send to: skyman(a)hetnet.nl 73's Cor PD0RKC ISS info: http://www.pd0rkc.com

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Cheap LEO antennas
by Grant Zehr 18 Aug '06

18 Aug '06

I would also stongly recommend the "Cheap Yagi" design, especially for 435 mc. band. I used a 3/4 square wood boom and a full length 435 mc. "AMSAT" cheap yagi design. I built one for my AO-40 uplink and another for LEO's both worked great. Sand the wood so it is nice and smooth. If you can find a drill press you will have nicely squared elements. To paint it I use a white "exterior wood primer" from the hardware store which is for priming the wood surfaces on the outside of your house. If you get the good kind, it takes 2-3 days to dry completely. Then I painted it with aluminum colored enamel ("rustoleum" or similar). I picked up some Coaxial cables at a flea market with BNC connectors, cut one in half and used that 2 antenna drive cables. From the ground it looks just like a "store bought" antenna and more important it really lasts. My LEO antenna has been up for about three years and still looks like new. The other thing is to be really careful about letting water get into the coax. Just use some caulking and be sure to loop your coax near the driven element to form a "drip loop". Gravity will keep things dry. Don't crush the wood while tightening the mounting bracket. It is easy to clip the driven element to tune the SWR. If you have time use a file to trim it when you get close to the best SWR. This is a GREAT antenna, just use exterior primer and enamel paint to protect it. I prefer wood to PVC (and I have used PVC for other projects). I used it today to work EB1FG on FO-29 on an east coast pass which peaked at less than 1 degree elevation here! Grant Zehr AA9LC

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MSNBC SpaceCam1 Article
by Farrell Winder 18 Aug '06

18 Aug '06

Suggest take a look at the following MSNBC web address for a current article regarding Amateur Radio which reflects the efforts of AMSAT and other Amateur Radio team groups. Editor Alan Boyle of the "Cosmic Log" section has provision for feedback from all readers and would appreciate any comments on this article: http://cosmiclog.msnbc.msn.com/archive/2006/08/17/2213.aspx Farrell Winder, W8ZCF, Cincinnati, Ohio

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Mode S
by Scott Smith 18 Aug '06

18 Aug '06

Hi folks, is there a bird up there where i can test my new mode S antenna?. 73 de Scott VE6ITV

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