AMSAT-BB November 2012

76 participants
90 discussions

Oscar News #200
by Graham Shirville 17 Nov '12

17 Nov '12

Hi All, Amazingly the next edition of AMSAT-UK’s quarterly magazine for members, “Oscar News”, will be number 200. Editon No1 was an 8 page newsletter issued in late 1973 and was actually produced before AMSAT-UK formally came into existence. Our 200th edition will be produced during December and the Editors invite everyone, whether or not they are AMSAT-UK members, to contribute to this milestone edition. We will welcome all submissions – short or long, historical or forward looking and, of course any pictures that you may have available. Many thanks in advance for your support best 73 Graham G3VZV and Jim G3WGM

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Sirius sat beacons +/- 2320.190 MHz
by f6htj＠aol.com 16 Nov '12

16 Nov '12

Hello all; for information here in south west Europe we use 2320,100 to 2320,300 cw/ssb portion of 13cm band for tropospheric , AS , RS, traffic. I have been told by Piero I5CTE there is permanent continuous carrier beacon around 2320.190 MHz (+/- doppler) by 1 of the 3 Sirius elliptic NA satellites. It appears reception is very good here with small 10 turn helix antenna (in spite of 12m heliax coax) peaking 539. Apogee (50000km ) around 325° with 27° elevation. F5BOF reports same signal with small hand held 25 elements f9ft yagi. So these are for us very interesting beacons. Depending hours we can receive 1 o 2 sats. Real time positions (Sirius-1 / Sirius-2 / Sirius-3) here: http://www.n2yo.com/satellites/?c=33 Any info about beacon sat polarisation and eirp ? 73 de Michel F6HTJ Amsat #7409

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Re: AMSAT-BB Digest, Vol 7, Issue 380
by john mckay 16 Nov '12

16 Nov '12

No problem thank you! Sent from my iPhone On 2012-11-16, at 3:07 PM, "amsat-bb-request(a)amsat.org" <amsat-bb-request(a)amsat.org> wrote: > Send AMSAT-BB mailing list submissions to > amsat-bb(a)amsat.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://amsat.org/mailman/listinfo/amsat-bb > or, via email, send a message with subject or body 'help' to > amsat-bb-request(a)amsat.org > > You can reach the person managing the list at > amsat-bb-owner(a)amsat.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of AMSAT-BB digest..." > > > Today's Topics: > > 1. Re: OT: UHF Linear Amp source (KE4KOL) > 2. Re: OT: UHF Linear Amp source (tosca005(a)umn.edu) > 3. Re: OT: UHF Linear Amp source (Floyd Rodgers) > 4. ARISS School Sked (Vince, K9TSU) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Thu, 15 Nov 2012 18:14:36 -0500 > From: "KE4KOL" <ke4kol(a)bellsouth.net> > To: "'Anthony Monteiro'" <aa2tx(a)comcast.net>, "'Kevin Muenzler, > WB5RUE'" <kevin(a)eaglecreekobservatory.org> > Cc: amsat-bb(a)amsat.org > Subject: [amsat-bb] Re: OT: UHF Linear Amp source > Message-ID: <FCF72C86AC2642B1BE3B4C0D98E9DE8B@jim1> > Content-Type: text/plain; charset="us-ascii" > > I got one. Does a good job. > Jim, Ke4kol > > > -----Original Message----- > From: amsat-bb-bounces(a)amsat.org [mailto:[email protected]] On > Behalf Of Anthony Monteiro > Sent: Thursday, November 15, 2012 11:50 AM > To: Kevin Muenzler, WB5RUE > Cc: amsat-bb(a)amsat.org > Subject: [amsat-bb] Re: OT: UHF Linear Amp source > > Hi Kevin, > > TE systems 4452G > > 73, > Tony AA2TX > --- > > On 11/15/2012 9:56 AM, Kevin Muenzler, WB5RUE wrote: >> >> Good morning all and 73/ >> >> I know this is a bit off topic (maybe way off topic) but I'm sure that > many >> of you regularly use UHF. I have been looking for a source of a UHF > LINEAR >> amplifier but they seem to be extremely difficult to find. I can find >> repeater amps and ATV amps (FM) but haven't been able to find any that >> specify that they are linear. I'm not looking for legal limit just >> 100-200watts. Any help would be appreciated. >> >> >> Kevin, WB5RUE >> Grid-EL09vf >> Eagle Creek Observatory >> http://www.eaglecreekobservatory.org >> I'd be unstoppable if it weren't for law enforcement and physics >> >> >> >> _______________________________________________ >> 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 > > > > ------------------------------ > > Message: 2 > Date: 15 Nov 2012 18:11:36 -0600 > From: tosca005(a)umn.edu > To: "Kevin Muenzler, WB5RUE" <kevin(a)eaglecreekobservatory.org> > Cc: amsat-bb(a)amsat.org > Subject: [amsat-bb] Re: OT: UHF Linear Amp source > Message-ID: <Gophermail.2.0.1211151811360.22440(a)vs-w.tc.umn.edu> > Content-Type: text/plain; format=flowed; charset=UTF-8 > > Kevin: > > I'm wondering if there is some other criteria besides UHF (I presume in the > 430-440 MHz band) and 100-200 watts out and linear operation? Because there > are many amps that meet those criteria. > > If you want brand new, you can find them from Mirage (not my first choice, > our repeater club and some of its members have had bad luck with > workmanship and keeping them operating), TE Systems (I've heard plenty of > positive feedback from folks with the exception of dealing with the company > for repairs), and some others. > > In the used market, I have had excellent results with RF Concepts bricks on > 144, 222, and 432. If you find one on the used market, it will probably be > quite satisfactory for you (I don't believe they ever made a unit that > produced more than 100 watts out). Teletec amps seem to be quite rare on > the used market, but that's probably because most folks that have them > don't want to let go of them. > > 73 de W0JT > EL09ro October - May > EN34js May - September > > > On Nov 15 2012, Kevin Muenzler, WB5RUE wrote: > >> >> Good morning all and 73/ >> >> I know this is a bit off topic (maybe way off topic) but I'm sure that many >> of you regularly use UHF. I have been looking for a source of a UHF LINEAR >> amplifier but they seem to be extremely difficult to find. I can find >> repeater amps and ATV amps (FM) but haven't been able to find any that >> specify that they are linear. I'm not looking for legal limit just >> 100-200watts. Any help would be appreciated. >> >> >> Kevin, WB5RUE >> Grid-EL09vf >> Eagle Creek Observatory >> http://www.eaglecreekobservatory.org >> I'd be unstoppable if it weren't for law enforcement and physics >> >> >> >> _______________________________________________ >> 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 > > > ------------------------------ > > Message: 3 > Date: Thu, 15 Nov 2012 19:40:24 -0600 > From: Floyd Rodgers <kc5qbc(a)swbell.net> > Cc: amsat-bb(a)amsat.org > Subject: [amsat-bb] Re: OT: UHF Linear Amp source > Message-ID: <50A59988.7010109(a)swbell.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Tokyo Hi-Power has had 70cm amps in the past like the hl-120u or hl-130u > http://www.tokyohypower.com/pdf/manual_hl130u.pdf > I'm not sure they are still making anything in that range currently. > > > ------------------------------ > > Message: 4 > Date: Fri, 16 Nov 2012 10:27:01 -0600 > From: "Vince, K9TSU" <k9tsu(a)hotmail.com> > To: amsat-bb(a)amsat.org > Subject: [amsat-bb] ARISS School Sked > Message-ID: > <CALRttT2kJsGC80yfQKPivP3gnC3ELfEgo-ue3ZdaEQpxGHkyKg(a)mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hello all! Please reply privatly to my email here and give me some tips on > getting an ARISS contact set up for my rural school. I am going to be 16 > in January and already have support from a teacher, as well as another ham > will ALL the required equpment. > > Thank you! > > > Vince Waelti, K9TSU > Monroe, Wisconsin EN52eo > > > ------------------------------ > > _______________________________________________ > Sent via amsat-bb(a)amsat.org. Opinions expressed are those of the author. > Not an AMSAT member? Join now to support the amateur satellite program! > http://amsat.org/mailman/listinfo/amsat-bb > > > End of AMSAT-BB Digest, Vol 7, Issue 380 > ****************************************

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iPhone/iPad/iTouch App for the X-Ray CubeSat CXBN
by Trevor . 16 Nov '12

16 Nov '12

The team at Kentucky Space have released an App for the iPhone, iPad and iTouch that tracks the CXBN CubeSat - 437.525 MHz 9k6 FSK AX.25, FM. Download the free CXBN App called Unbridled Spirit from https://itunes.apple.com/us/app/cosmic-x-ray-background-nanosatellite/id575… 73 Trevor M5AKA AMSAT-UK http://www.amsat-uk.org/ ----

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ARISS School Sked
by Vince, K9TSU 16 Nov '12

16 Nov '12

Hello all! Please reply privatly to my email here and give me some tips on getting an ARISS contact set up for my rural school. I am going to be 16 in January and already have support from a teacher, as well as another ham will ALL the required equpment. Thank you! Vince Waelti, K9TSU Monroe, Wisconsin EN52eo

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AO-7 Operation
by Randy Morden 16 Nov '12

16 Nov '12

Hello All, I heard something interesting earlier today while monitoring an AO-7 pass above my QTH at around 23:30Z. The mode B (U/V) transponder basically went dead, and I heard a very odd buzzing sound in about the centre of the passband, with no activity anywhere else in the passband. Not a typical FMing sound, but something more akin to auroral buzzing, like on 6 metres. We have had some great visible auroral shows at my latitude lately (57 degrees north), and I wonder if the solar wind causing the aurora may have had an effect on old AO-7. Did anyone else hear this? Any thoughts on what was happening? I see from the live Oscar update web page that Russian Hams reported normal mode B operation subsequent to my observations. As an aside, after repair of an intermittent in the UHF finals of my ICOM 820H and replacement of the N connector, I am fully QRV again on the birds, and look forward to giving out grid DO16 when able. 73 to all, Randy, VE6RGU

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setup of kenwood d7g for iss digi
by w6gmt＠bak.rr.com 14 Nov '12

14 Nov '12

Hi All Is it possible to use the D7G with UISS to track and map. Also it would be fun to make some contacts. Off BB contact is fine 73 Brock -- W6GMT BROCK THOMSEN MARCELL MN 56657 EN37EN

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receiving 5.8 GHz
by Lizeth Norman 14 Nov '12

14 Nov '12

Hi all! What schemes are available for someone who only has a funcube dongle? It tops out at 1700 MHz. I am thinking hetrodyining using a brick and a double balanced mixer. Block down converter is another option. Any other options on the cheep side? Norm n3ykf

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filter
by Nick Pugh 13 Nov '12

13 Nov '12

Hi All A few weeks back there was a note on a mode j filter made from square tube can someone on the list point me to the article Thanks nick ars k5qxj EM30xa 30.1 n 90.1 w cell 337 2582527 office 337 593 8700

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MAREA a School Activity You Can Do
by Mark Spencer 13 Nov '12

13 Nov '12

Dinner conversation the other evening. Dad: "Suzie, what did you do in school today?" "Science class was pretty cool today. We have been teaching our robot, Robbie, to move through a maze.last week my group was the first to make it through the maze without hitting the sides. So today, Ms. Smith allowed us to send the commands we made up to move Robbie through the maze up to the International Space Station and back down to Robbie. We used ham radio to do it. I got to push the computer key that actually send the commands! There was some raspy sounds from the radio speaker, a delay, like a hundred hours.well it seemed like a long time. and then Robbie started to go through the maze!" "Wow, that's pretty amazing." "Yes it is. We listen for radio signals from the ISS all the time, but this is the first time that we ever sent our own radio signal to the ISS from the radio in our classroom. And I know that our radio waves were heard in space because the signals came right back down to Robbie and we watched him move through the maze.just like Mission Control does to make Curiosity move on Mars." Dad: "Well I didn't know you were an astronaut." "Ah Dad, not yet, but I will be some day." ".I'm sure you will Suzie." Interested how you can help your school do this? Ask me, mspencer(a)arrl.org. Mark Spencer, WA8SME Education and Technology Program Director ARRL, the national association for Amateur RadioTM 43 Pinelock Dr. Gales Ferry, CT 06335 860-381-5335 860-460-1139 (cell) mspencer(a)arrl.org

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AMSAT-BB November 2012