February 2008 - AMSAT-BB - mailman.amsat.org

Swan Island DXpedition will be QRV on the LEOs
by Bill Dzurilla 27 Feb '08

27 Feb '08

I am pleased to report that HQ8R will be QRV on the satellites from Swan Island, grid EK87, from March 15-23. See http://www.hondurasdx.com/ I'll be taking my FT-817 and an Arrow antenna. Time permitting, I will also try to make a few contacts before and after the expedition from the Honduran mainland, EK55, EK65 and EK75. Weather permitting, we may also try to give out EK76 from the boat on the way to and from the island. 73, Bill NZ5N ____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs

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S-band patch.
by John Hackett 27 Feb '08

27 Feb '08

Mak, I can assure you the patch *IS* correct. The photo is taken from the rear, what you are seeing in the photo is the 'rear' of the reflector and the back end of the gold SMA connector. The radiator - (hidden by the larger reflector, in the photo) - is connected to the pip of the SMA connector and is mounted 3mm 'above' the reflector. The radiator is 'cut' for 2401Mhz and is made from silver plated brass sheet ... bas is the reflector. I think what may have fooled you is ... 1) Not realising you were looking at the rear of the patch. 2) The fact that my reflector is square, not round. The G3RUH design uses a round reflector, the K3OE uses square. As far as I can assertain there is no practical difference between the designs. 73 John. <la2qaa(a)amsat.org> 73 John. From: sv1bsx(a)yahoo.gr To: la2qaa(a)amsat.org Subject: Re: [eu-amsat] S-band test gear. Date: Wed, 27 Feb 2008 15:03:14 +0200 Hi John, I read your post but I am afraid that, your PATCH is not correct. Sorry if I am wrong, but due to non-clear photo I can see on the Left-UP part of photo ONLY the "drive element" of Patch (the square-piece with cut-corners ) without the "circular piece" behind of drive-element which acts as reflector. As I see also in your photo, the chassis-connector is mounted on this square piece and not to the circular reflector. If that is not my... illusion, that is not a correct Patch. I send you a clear photo to take a view how is the complete Patch by viewing that from the front-side. 73, Mak ----- Original Message ----- From: John Hackett To: allan_gm1sxx(a)hotmail.com Cc: sv1bsx(a)yahoo.gr ; amsat-bb(a)amsat.org ; Eu-amsat(a)yahoogroups.com Sent: Wednesday, February 27, 2008 1:22 PM Subject: [eu-amsat] S-band test gear. OBSERVATIONS FROM NORWAY. February 2008. Based on SV1BSX's comments about receiving a *THUNDERING* signal from AO-51's S-band transmitter on a patch antenna 'without' a reflector - I decided to chuck together a few components to see if somebody as 'thick' as LA2QAA could manage it. The attached pic is the ... 'fruits of LA2QAA's labour'. Starting at the top right we have a silver covered brass plate 2.4Ghz patch antenna (note the real gold SMA connector, folks) mounted 3mm over a (ditto) groundplane, via a short length of high quality (fell off the back of a North Sea Oil industry lorry) coax feeding the input of a 2.4G 70 70cm converter ... the output of which goes to the IC-E91 dual mode handheld and a pair of 'cans' ... (headphones, to you!). To the right of the IC-E91 is a Nokia N70 mobile phone - (not shown in this pic because I was using it to take the picture) - with the 'SATme' tracking software .... which is very !! useful for tracking S-mode signals from LEO birds with the 'slight' doppler thus received. The phone also contains a compas as well as GPS software so there's no excuse for ... 'but I can't find north' ... (not always easy in 3 feet of snow, null visibility and cloudy conditions) ... and there's *NEVER* a brownie or a girl guide around when you want one. S-band signals in those conditions? ... you'd be surprised - we don't all live in satellite friendly climes you know. Mak (SV1BSX) is right. A 60cm dish is overkill for AO-51 mode-S ... though of course, there are! those that think you need a personal Jodrell Bank to hear anything above 70cm. __._,_.___ Your email settings: Individual Email|Traditional Change settings via the Web (Yahoo! ID required) Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe __,_._,___ --- avast! Antivirus: Inbound message clean. Virus Database (VPS): 080219-0, 02/19/2008 Tested on: 2/27/2008 13:54:17 avast! - copyright (c) 1988-2008 ALWIL Software. http://www.avast.com

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For Sale
by Bruce 27 Feb '08

27 Feb '08

I am offering this up for sale here before I put it on eBay. I have an OLPC to sell. I am not a unix/linux guru and have no idea how to get the machine to do more than what comes pre-loaded. I connected to my home network but using it to surf the internet is just not something I need it for. The OLPC comes with the ac adapter and an instruction sheet. I will sell it for the $200 that it cost plus $20 shipping in continental U.S. only (2-day Fedex). **** Reply directly to me and not to the list **** 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards ARRL Awards Manager (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on SkyScanner Satellite Radio Network on Galaxy-25 @97° West, Transponder 23 (12115 Vert), Symbol Rate: 22425, APID: 1794 (DVB Free To Air) Also streaming MP3 at http://www.amsatnet.com Latest satellite news on the ARRL Audio News http://www.arrl.org

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Re: PcSat and UISS
by John Marranca, Jr 27 Feb '08

27 Feb '08

Alan: Guy is usually pretty good at taking care or key requests. I had mine in a few days, as have others that started using UISS. Here is Guy's direct e-mail addresses: hams001(a)skynet.be on6mu(a)belgacom.net Good Luck. John KB2HSH -- _______________________________ John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006

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Re: S-band test gear.
by Aldo Marchetto 27 Feb '08

27 Feb '08

Really the S transmitter is very strong It's easy to receive even with a simple doublequad with reflector But the speed of the Doppler shift is amazing! Aldo IZ1ANT/HB9EFT

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Working GO-32 with pb/pg
by Jeff Mock 27 Feb '08

27 Feb '08

I need a little help using pb/pg with GO-32 to upload/download files. I'm a linux guy, I have a linux machine running ax.25 software, talking to a TNC in KISS mode hooked up to my radio. Using the ax.25 utility 'listen -a' I can see GO-32 transmit packets when it passes overhead. I can sort of flail a bit with "pb" and it transmit some packets to GO-32 and even occasionally see GO-32 send back a packet with my callsign, so I'm pretty sure that the radio and low level link are at least sort-of working. Can someone give me a little guidance about how to use pb/pg to download a list of files, download a particular file, and upload a file. My aim is to upload a file, then download the file on a later pass, but I can't seem to figure it out on my own. thanks, jeff AD6EO

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Re: AO-51 Ops
by Clint Bradford 27 Feb '08

27 Feb '08

.. the accepted term is "CQ" not "listening"... Accepted by whom? I have never heard that using a Morse Code code on a voice system was accepted by anyone of importance. I haven't seen any reason here yet to change the presentation I've been giving for years now...described on the amateur radio pages at... http://www.k6lcs.com Clint Bradford

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Re: power restriction in New Mexico on 435 MHz
by Robert L Lasso 27 Feb '08

27 Feb '08

thanks to Lee for the definitive answer to my question and thanks to all that replied to my query. 73, Robert W6RQR

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S-band test gear.
by John Hackett 27 Feb '08

27 Feb '08

OBSERVATIONS FROM NORWAY. February 2008. Based on SV1BSX's comments about receiving a *THUNDERING* signal from AO-51's S-band transmitter on a patch antenna 'without' a reflector - I decided to chuck together a few components to see if somebody as 'thick' as LA2QAA could manage it. The attached pic is the ... 'fruits of LA2QAA's labour'. Starting at the top right we have a silver covered brass plate 2.4Ghz patch antenna (note the real gold SMA connector, folks) mounted 3mm over a (ditto) groundplane, via a short length of high quality (fell off the back of a North Sea Oil industry lorry) coax feeding the input of a 2.4G 70 70cm converter ... the output of which goes to the IC-E91 dual mode handheld and a pair of 'cans' ... (headphones, to you!). To the right of the IC-E91 is a Nokia N70 mobile phone - (not shown in this pic because I was using it to take the picture) - with the 'SATme' tracking software ... which is very !! useful for tracking S-mode signals from LEO birds with the 'slight' doppler thus received. The phone also contains a compas as well as GPS software so there's no excuse for ... 'but I can't find north' ... (not always easy in 3 feet of snow, null visibility and cloudy conditions) ... and there's *NEVER* a brownie or a girl guide around when you want one. S-band signals in those conditions? ... you'd be surprised - we don't all live in satellite friendly climes you know. Mak (SV1BSX) is right. A 60cm dish is overkill for AO-51 mode-S ... though of course, there are! those that think you need a personal Jodrell Bank to hear anything above 70cm.

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SuitSat-1 is still in the press ...
by JoAnne Maenpaa 27 Feb '08

27 Feb '08

Folks still remember SuitSat-1: http://www.dailygalaxy.com/my_weblog/2008/02/suitsat-one--th.html -- 73 de JoAnne K9JKM k9jkm(a)amsat.org

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