February 2011 - AMSAT-BB - mailman.amsat.org

News regarding HO-68?
by PE0SAT 18 Feb '11

18 Feb '11

Hi, Thanks for reading this message. Is there any news regarding HO-68? Or can somebody give us a link where we can find this information? 73 Jan - PE0SAT -- With regards PE0SAT Internet web-page http://www.ham.vgnet.nl/

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QST Article on ARISSat-1 Available
by Clint Bradford 18 Feb '11

18 Feb '11

David Jordan AA4KN's excellent article on working ARISSat-1 that was published in the February, 2011 issue of QST magazine is available for download to all. http://tinyurl.com/work-arissat1 It is a 1.1MB .pdf document. Clint Bradford, K6LCS (Permission received from the ARRL to publish.)

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Yaesu 847 vs. Icom 910
by zach hillerson 18 Feb '11

18 Feb '11

I am finally in the market for a base station radio for satellites. I should mention that I am also planning to install a wire dipole in the backyard for HF work, but convenience shouldn't be the reason to buy/not to buy a radio..... It seems that the Icom 910 and Yaesu 847 are the two main transceivers in base use for satellites. I know some folks are using the Kenwood TS2000, bu i t I understand thatit has a "birdie" that makes operation on a couple FM satellites challenging. I am hoping to work both the linear and fm birds with this transceiver. Is there a BB favorite? Have I just opened up a bad can of worms? I just want to make sure that I am purchasing the proper parts the first time.... Thanks, Zach N4ERZ

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Florida AMSAT Net 18Feb 0030 UTC
by John Papay 17 Feb '11

17 Feb '11

The Florida AMSAT net is held every Thursday evening at 7:30pm Eastern Time (18Feb 0030z). Many Florida repeaters are connected together for this net but others are welcome to join by using the AMSAT Echolink Conference Node. Mike N4HHA is usually the moderator. Bring your questions and news items to share. 73, John K8YSE/4

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AO-51 back on
by Andrew Glasbrenner 17 Feb '11

17 Feb '11

Luckily, it was a simple issue. Please post your reports to oscar.dcarr.org through the weekend, it really helps the command team. 73, Drew KO4MA

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Re: AO-51 may have crashed...
by GW1FKY＠aol.com 17 Feb '11

17 Feb '11

Hi Drew, Confirms my fears as I did not hear any activity over here in UK (Wales) on the high elevation pass between 1555 -1610 hrs GMT. Trust that it is not related to the "Solar Flare " that has been forecast to disrupt communication etc. Good Luck. Ken Eaton GW1FKY Amsat -UK Amsat NA

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Re: pre amp help..
by Joe Leikhim 17 Feb '11

17 Feb '11

I gave had good luck with the AG-25 and AG-35 used with my IC-970A. Except for one incident when I was keyed down and switched the satellite mode switch and zapped the AG-25. Apparently the internal sequencer did not expect me to do that. -- Joe Leikhim Leikhim and Associates Communications Consultants Oviedo, Florida www.Leikhim.com JLeikhim(a)Leikhim.com 407-982-0446

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AO-51 may have crashed...
by Andrew Glasbrenner 17 Feb '11

17 Feb '11

We'll look into it on the first available pass. 73, Drew KO4MA AMSAT VP Operations

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Re: Yaesu FT-736R and Ham Radio Deluxe
by zdz eighty 17 Feb '11

17 Feb '11

Hi I have enough testers now. Thanks. I have one in australia, one in germany and one in lebanon. As soon as i get the revised board up on batchpcb.comi'll provide a link and if your interested you can buy it from them. The code and board is all open source. the batchpcb price wil be at there cost with no add on by me. i'll post later where to get the code. i'm looking for a website. thanks chuck n6bil

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Re: pre amp help..
by Bob- W7LRD 17 Feb '11

17 Feb '11

Ahhh another AO-40 comment. I used a old and still have in operation an old TS-700A 2M xcvr with the tx disabled. This was, and is my designated S band receiver. Speaking of S band when will AO-51 be back in that mode. If even for a few days, it's fun to play with that stuff. 73 Bob W7LRD ----- Original Message ----- From: "Greg D." <ko6th_greg(a)hotmail.com> To: k7trkradio(a)charter.net, amsat-bb(a)amsat.org Sent: Wednesday, February 16, 2011 9:56:50 PM Subject: [amsat-bb] Re: pre amp help.. As others, SSB Electronics model that is RF switched. I *have* transmitted 100+ watts into it, though not on purpose, and it works just fine. I got the RF switched model as a "just in case" bit of insurance, and am glad I did. It's been reported here a few years ago that sometimes there's a little "burp" of RF that squirts out when a transceiver is powered up. Seems unlikely , but if so, maybe that did it? If I recall, the discussion was about people frying their AO-40 S-band down converters by accidentally transmitting into them. An somewhat less certain recollection is that someone came up with a simple circuit that would clamp the RF to a more forgiving, if not totally safe level. As an alternative to an RF switched preamp model, perhaps a stroll through the archives might net a different solution. Good luck, Greg KO6TH > From: k7trkradio(a)charter.net > To: amsat-bb(a)amsat.org > Date: Wed, 16 Feb 2011 13:59:41 -0800 > Subject: [amsat-bb] pre amp help.. > > I just sent my ARR pre amp back to ARR for repair for the 3rd time ! > > (pretty sure I did not tx through it ) > > What are people using for pre amps. I only see the Mirage as an alternative. > Any other choices. I'm kind of disappointed in ARR products. > Is there a pre amp that you can tx through preventing accidental frying? > > Any thoughts appreciated > > 73, Ted, K7TRK > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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