July 2013 - AMSAT-BB - mailman.amsat.org

D STAR Amsat users net
by damon runion 25 Jul '13

25 Jul '13

Hello all D Star Amsat net (informal gathering) Thursday evening at 0100 utc. REF60B check the link https://sites.google.com/site/memphisdstar/d-satellite-amsat-net You can also use drats chat room download from the link click on chat then click on join channel then type in dratsamsat then look at the near bottom left where it says main ,,click on the dratsamsat window, type on the line just below. Thanks WA4HFN Damon em55

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XE2HWB from DL43 - this weekend (27-28 July)
by Patrick STODDARD (WD9EWK/VA7EWK) 25 Jul '13

25 Jul '13

Hi! I received an e-mail from Bernardo XE2HWB, a long-time VHF/UHF operator based in La Paz in southern Baja California who has also worked satellites. Bernardo is leaving tomorrow to go out to the Sierra de la Laguna in grid DL43. He plans on working SO-50, FO-29, and VO-52 passes on Saturday (27 July) and Sunday (28 July), although he did not specify which passes he would try to be on over those two days. Along with his satellite work, XE2HWB will also be on 6m. It's been a while since XE2HWB has activated rarely-heard grids on the Baja California peninsula, and in the past he would confine his satellite activity to the FM satellites. It is nice to see his plan to try working FO-29 and VO-52 along with our remaining FM satellite. Good luck, and 73! Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/

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Web Address
by Martha 25 Jul '13

25 Jul '13

Just a reminder that you can find up-to-date information on the satellites, the latest AMSAT news and the AMSAT store on *amsat.org * -- 73- Martha

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Interns build a CubeSat
by M5AKA 25 Jul '13

25 Jul '13

A NASA video, see http://amsat-uk.org/2013/07/25/interns-build-a-cubesat/ Also on the AMSAT-UK site: The email address for telemetry reports from the STRaND-1 satellite on 437.568 MHz has changed, it is now: strand.messages<at>gmail.com http://amsat-uk.org/2013/07/23/uk-strand-1-cubesat-is-back/ ---- 73 Trevor M5AKA AMSAT-UK website http://amsat-uk.org/ Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396 Twitter https://twitter.com/AMSAT_UK ----

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ISS Deployment Costs
by M5AKA 25 Jul '13

25 Jul '13

Aviation Week is saying Nanorack charge $85,000 per 1U CubeSat for its ISS deployment service, and expects to launch as many as 38 of the units on the first mission. (November this year ?) http://www.aviationweek.com/Article.aspx?id=%2Farticle-xml%2FAW_07_22_2013_… 73 Trevor M5AKA

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D STAR AMSAT informal tonight
by damon runion 25 Jul '13

25 Jul '13

Hello all D Star Amsat net (informal gathering) Thursday evening at 0100 utc. REF60B check the link https://sites.google.com/site/memphisdstar/d-satellite-amsat-net You can also use drats chat room download from the link click on chat then click on join channel then type in dratsamsat then look at the near bottom left where it says main ,,click on the dratsamsat window, type on the line just below. Thanks WA4HFN Damon em55

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D STAR Amsat net
by damon runion 25 Jul '13

25 Jul '13

Hello all D Star net Thursday evening at 0100 utc. REF60B check the link https://sites.google.com/site/memphisdstar/d-satellite-amsat-net You can also use drats chat room download from the link click on chat then click on join channel then type in dratsamsat then look at the near bottom left where it says main ,,click on the dratsamsat window, type on the line just below. Thanks WA4HFN Damon em55

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Re: Strand-1
by GW1FKY＠aol.com 24 Jul '13

24 Jul '13

Hi, Amazing and remarkable news following the Amsat-UK gathering and presentation by Dr.Chris Bridges. Congratulations to Mike DK3WN on his success and report on the revival of the satellite. I hope that the Strand-1 team and of course many of those following events will get a further opportunity to monitor and reach the objectives of the project. Ken Eaton GW1FKY Amsat-UK Amsat NA

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Re: Strand-1
by M5AKA 23 Jul '13

23 Jul '13

A video of the presentation on STRaND-1 given on July 21 by Chris Bridges M6OBC / M0GKK to the AMSAT-UK International Space Colloquium can be seen via: http://amsat-uk.org/2013/07/23/uk-strand-1-cubesat-is-back/ ---- 73 Trevor M5AKA AMSAT-UK website http://amsat-uk.org/ Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396 Twitter https://twitter.com/AMSAT_UK ---- ________________________________ From: Graham Shirville <g.shirville(a)btinternet.com> Hi ALl, Mike DK3WN has just reported hearing STRaND-1 and decoding telemetry this evening. The spacecraft has been silent since March 31st so this is really good news. I am certain that the project leader, Dr Chris Bridges, who presented a paper about STRaND-1 at the AMSAT-UK Colloquium last Sunday, would be really pleased to receive any and all reports from other amateurs around the world. Mike has an info page about this spacecraft here: http://www.dk3wn.info/sat/afu/sat_strand.shtml Please send your reports to C.P.Bridges at surrey.ac.uk thanks Graham G3VZV

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Strand-1
by Graham Shirville 23 Jul '13

23 Jul '13

Hi ALl, Mike DK3WN has just reported hearing STRaND-1 and decoding telemetry this evening. The spacecraft has been silent since March 31st so this is really good news. I am certain that the project leader, Dr Chris Bridges, who presented a paper about STRaND-1 at the AMSAT-UK Colloquium last Sunday, would be really pleased to receive any and all reports from other amateurs around the world. Mike has an info page about this spacecraft here: http://www.dk3wn.info/sat/afu/sat_strand.shtml Please send your reports to C.P.Bridges at surrey.ac.uk thanks Graham G3VZV

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Yubileiny (RS-30) ?
by Jean-Pierre Godet 23 Jul '13

23 Jul '13

Hi all here ! Looks like Yubileiny/RS-30 is no more active... Is there anyone among us who could confirm ? Last record here was on November 12th 2012, heard maybe some time in december but nothing now. I'm listening in vain for more than a week on 435.215 and 435.315 MHz. Last pass, orb. nr 23440 has a max elevation 68 deg. Yubileiny-2/RS-40 is OK but active only when in sight of Krasnoyarsk. Yesterday was on 435.265 MHz (DOKA-B, not CW, two pass recorded). Best 73 ! Jean-Pierre/F5YG -- Powered by Linux (Slackware 10.0 - kernel 2.4.26)

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CAPE-2 Tweeting From Space
by Rizwan 'Drake' Merchant 23 Jul '13

23 Jul '13

Greetings AMSAT! A few weeks ago, I emailed out asking for help on figuring out how to tweet from our CAPE-2 cubesat while it is in orbit using APRS. I am pleased to announce, the satellite is now capable of tweeting. I realize our launch is still a little ways away, but I thought I would pass the community our twitter account to follow. Expect occasional tweets from the account as we test different modules out. :) Twitter: https://twitter.com/CAPE_2 Thanks to everyone who helped our team brainstorm how to make this a reality! Sincerely, Rizwan Merchant Call Sign: KF5BNL Notice of Confidentiality This E-mail is covered by the Electronic Communications Privacy Act, 18 U.S.C. §§ 2510-2521 and is legally privileged. This information is confidential information and is intended only for the use of the individual or entity named above. If the reader of this message is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. This email communication contains private and confidential information that is intended for the specific recipient, if you have received this communication in error please contact the sender immediately by phone or email to be removed from the contact list and please destroy all contents immediately.

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Fw: 1/2 Wave "cavity" filter design?
by i8cvs 22 Jul '13

22 Jul '13

Hi Rolf, NR0T I have routed your webserver address to AMSAT-BB so that others interested to the 1/2 Wave "cavity" filter design can download it directly from your webserver Thanks 73" de i8CVS Domenico ----- Original Message ----- From: Rolf Krogstad To: i8cvs ; co7wt(a)frcuba.co.cu ; pavel(a)conas.cu Sent: Monday, July 22, 2013 6:39 PM Subject: Re: [amsat-bb] 1/2 Wave "cavity" filter design? Domenico and Pavel The 144 MHz Filter article is now located on my webserver at http://tinyurl.com/n8bxlwh This tinyurl address translates to my webserver address of http://76.17.188.77/ham/AMSAT%20Journal%20May%20Jun%202010%20144%20MHz%20K3… 73 Rolf NR0T On Mon, Jul 22, 2013 at 9:41 AM, i8cvs <domenico.i8cvs(a)tin.it> wrote: > Domenico, > If you send it to me I can post it on my webserver and then you can send > out the link to it there. > 73 > Rolf NR0T Hi Rolf Please send out the link to co7wt(a)frcuba.co.cu or pavel(a)conas.cu Thanks Hi Pavel ,CO7WT and Rolf,NR0T Here is my article: "Filter and Receiver Front End Protection Device for 144 MHz EME " published with all building details into the AMSAT Journal May/June 2010 If you want it for 70 cm you will find the description, drawings and application in the following address. http://www.k3pgp.org/432filter.htm Have fun 73" de i8CVS Domenico

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iPhone, iPad, iPod Touch 'Satellite Explorer Pro' app
by Thomas Doyle 22 Jul '13

22 Jul '13

Available in the Apple app store. It is free. Video: http://www.youtube.com/watch?v=pRM16bIucQ8 73 W9KE Tom Doyle

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For the LEO satellite jock who has everything...
by Bill (W1PA) 22 Jul '13

22 Jul '13

http://travisgoodspeed.blogspot.com/2013/07/hillbilly-tracking-of-low-earth… Bill W1PA

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Satellite Operations from Guernsey
by Peter Goodhall 22 Jul '13

22 Jul '13

Hi All, Just a quick note to say that from the 24th of July till the 30th of July, I will be active sporadically on satellite passes from Guernsey (IN89RL) as 2U0SQL. I shall be focusing on FO-29 and SO-50 passes but no firm pass times, but hopefully will have internet access and will try posting on Twitter (@2E0SQL) when I'll be on. Due to this being camping I will be battery powered using a FT-817 and a Arrow antenna. If anyone needs a QSL Card its direct to 2E0SQL or bureau. 73, -- Peter Goodhall, 2E0SQL/2U0SQL

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Fw: Delivery Status Notification for Ing. Pavel Milanes Costa <[email protected]>
by i8cvs 22 Jul '13

22 Jul '13

Hi Pavel, CO7WT My article is a pdf file about 3 MB long and it was rejected bak to me by your system. Sorry ! 73" de i8CVS Domenico ----- Original Message ----- From: "Mail Delivery Service" <postmaster(a)tin.it> To: <domenico.i8cvs(a)tin.it> Sent: Monday, July 22, 2013 11:37 AM Subject: Delivery Status Notification > - These recipients of your message have been processed by the mail server: > co7wt(a)frcuba.co.cu; Failed; 5.3.4 (message too big for system) > > Remote MTA mail.frcuba.co.cu: network error > > > - SMTP protocol diagnostic: 552 Message size exceeds maximum permitted > > ---------------------------------------------------------------------------- ---- > Return-Path: <domenico.i8cvs(a)tin.it> > Received: from i8cvs (87.4.173.180) by vsmtp4.tin.it (8.6.060.26) > id 51DD1E01017CCA8B; Mon, 22 Jul 2013 11:36:56 +0200 > Message-ID: <002701ce86be$be606660$0401a8c0@i8cvs> > From: "i8cvs" <domenico.i8cvs(a)tin.it> > To: "pe0sat" <pe0sat(a)vgnet.nl>, > "Jeff Moore" <tnetcenter(a)gmail.com>, > <wb4gcs(a)wb4gcs.org>, > <Ab4ab(a)aol.com>, > <co7wt(a)frcuba.co.cu> > Subject: [amsat-bb] 1/2 Wave "cavity" filter design? > Date: Mon, 22 Jul 2013 11:34:58 +0200 > MIME-Version: 1.0 > Content-Type: multipart/mixed; > boundary="----=_NextPart_000_0022_01CE86CF.7EA0E930" > X-Priority: 3 > X-MSMail-Priority: Normal > X-Mailer: Microsoft Outlook Express 6.00.2800.2001 > X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.2001 > >

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Re: Gospodin Murphy was right!
by Armando Mercado 22 Jul '13

22 Jul '13

Hello, Sounds familiar. The Genesis Sample Return Probe crash landed in Utah in 2001 when its parachute failed to deploy. Root cause was an accelerometer that was installed backwards. 73 Armando N8IGJ

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Slime Mold CubeSat gets into the media
by M5AKA 22 Jul '13

22 Jul '13

A brief mention of the Slime Mold CubeSat posted last March on the AMSAT-UK and Southgatearc.org sites has been picked up by one of the Space.Com website writers, Leonard David, who has written a good article which retained a mention of amateur radio. It's Summer in the northern hemisphereand media outlets can be short of stories at this time of year so Leonards story has in turn been picked up by a few other news outlets and hopefully that will spread. I guess the thought of Slime in Space captures the imagination.Most of the resulting stories seem to have retained the mention of amateur radio. You can read Leonard David's article at http://www.space.com/21982-space-slime-grows-mold-tiny-satellite.html March AUK mention http://amsat-uk.org/2013/03/15/teikyosat-3-slime-mold-from-space/ 73 Trevor M5AKA ----

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Gospodin Murphy was right!
by Alan 21 Jul '13

21 Jul '13

An interesting article on the recent launch failure of a Proton-M: http://preview.tinyurl.com/kt5x9hw The latest in a long line of bizarre, expensive errors in the world launch business. 73s, Alan WA4SCA

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1/2 Wave "cavity" filter design?
by Robert Bruninga 21 Jul '13

21 Jul '13

Given the classic 1/2 wave cavity filter, what is the relationship between inner cavity and center conductor sizes? Of course bigger is better, but what is "OK". This is a 1/2 wavelength tube with a center conductor shorted at each end. The input is loop coupled at one end, an output is loop coupled at the other end. In the middle is a tiny variable capacitor (usually just a screw) to tune to resonance. In the limit, as the cavity size shrinks, you can end up with what could be considered as just a piece of 1/2wave coax. Im looking for a really cheap Home-Depot plumbing design that 15 people can reproduce to give them good front end antenna filtering when operating on mountain tops adjacent to other RF souces. (say within 100 yards, not permanent installations which of course should spare no expense at getting the best cavities possible). We just finished our 4th annual Golden Packet attempt from Maine to Georgia along the Appalachian trail and many stations were plagued with front end overload. http://aprs.org/at-golden-packet.html I'd like to come up with a 3/4" copper pipe design that is robust, provides sevral dB of out of band rejection. Im trying to understand the parameters that drive the size of the center conductor. Normally bigger is better for better bandwidth, but I think smaller will give me steeper skirts and better rejection? I dont mind say 2 or more dB insertion loss, because as it is, front end-overload is making us totally deaf and anything would be bettter. Lastly, I think such a 1/2wave filter will also pass as a 1.5wave pass filter on UHF. We need dual band, since we use dual band rigs and coordinate on UHF voice from the same antennas and coax used for the VHF packet.

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Fwd: AMSAT-UK Colloquium Videos Now Available Online
by Mark Thompson 21 Jul '13

21 Jul '13

----- Forwarded Message ----- From: MI5AKA <m5aka(a)yahoo.co.uk> To: Digital ATV Group <DigitalATV(a)yahoogroups.com> Sent: Saturday, July 20, 2013 5:50 PM Subject: [DigitalATV] AMSAT-UK Colloquium Videos Now Available Online Thanks to the hard work of volunteers from the British Amateur Television Club (BATC) videos of the presentations given to the AMSAT-UK International Space Colloquium held in Guildford, July 20-21, 2013 are now available to download or watch online.The ISS DATV presentation is at the end of the Columbus Lifecycles video.See http://amsat-uk.org/2013/07/20/amsat-uk-colloquium-videos-now-available/Live Webcast of International Space Colloquium continues Sunday, July 21 http://amsat-uk.org/2013/07/18/webcast-of-international-space-colloquium/ The Colloquium schedule (times in BST, GMT+1) can be seen athttp://tinyurl.com/2013ColloquiumSchedule ----73 Trevor M5AKAAMSAT-UK website http://amsat-uk.org/Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396Twitter https://twitter.com/AMSAT_UK---- __._,_.___ Reply via web post Reply to sender Reply to group Start a New Topic Messages in this topic (1) Recent Activity: * New Members 2 * New Files 1 Visit Your Group Switch to: Text-Only, Daily Digest • Unsubscribe • Terms of Use • Send us Feedback . __,_._,___

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AMSAT-UK Colloquium Videos Now Available Online
by M5AKA 20 Jul '13

20 Jul '13

Thanks to the hard work of volunteers from the British Amateur Television Club (BATC) videos of the presentations given to the AMSAT-UK International Space Colloquium held in Guildford, July 20-21, 2013 are now available online. See http://amsat-uk.org/2013/07/20/amsat-uk-colloquium-videos-now-available/ Live Webcast of International Space Colloquium continues Sunday, July 21 http://amsat-uk.org/2013/07/18/webcast-of-international-space-colloquium/ The Colloquium schedule (times in BST, GMT+1) can be seen at http://tinyurl.com/2013ColloquiumSchedule ---- 73 Trevor M5AKA AMSAT-UK website http://amsat-uk.org/ Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396 Twitter https://twitter.com/AMSAT_UK ----

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AO-7 mode B
by Roland Zurmely 20 Jul '13

20 Jul '13

Very week signal !... on orbit #177000 over Brazil, at 20:20 UTC. Problem with solar panels ? or illumination ? QSO with PU2RAS. 73 de Roland PY4ZBZ

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QB50: Amateur Radio transponder payloads to launch 2014
by M5AKA 20 Jul '13

20 Jul '13

It was announced during the QB50 presentation at the AMSAT-UK International Space Colloquium that two CubeSats, one carrying a SDX linear transponder for SSB/CW, the other a FM voice transponder, should be launched into a 600 km orbit in the first half of 2014. Seehttp://amsat-uk.org/2013/07/20/qb50-amateur-radio-transponder-payloads-t… Live Webcast of International Space Colloquium this weekend http://amsat-uk.org/2013/07/18/webcast-of-international-space-colloquium/ The Colloquium schedule (times in BST, GMT+1) can be seen at http://tinyurl.com/2013ColloquiumSchedule ---- 73 Trevor M5AKA AMSAT-UK website http://amsat-uk.org/ Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396 Twitter https://twitter.com/AMSAT_UK ----

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