October 2010 - AMSAT-BB - mailman.amsat.org

Any video being offered after the symposium?
by James French 09 Oct '10

09 Oct '10

Was wondering if there is going to be any video offered later on on the AMSAT web site from the Symposium? What I am most interested in is the following: Saturday, October 9 1500 - 1520 Stephen Turner K3HPA, 100 Watt VHF/UHF Amplifier Looks like I will have to get a copy of the proceedings in the next few months to read up on this also. James W8ISS

3 2

HO-68 audio stream
by Mike Rupprecht 09 Oct '10

09 Oct '10

All, according Henks PA3GUO idea I will also stream the HO-68 FM transponder for test purposes this evening. http://www.dk3wn.info/webradio.php The times for my QTH JN49lr are: 09 Oct HO-68 17:24 to 17:39 UTC 17 deg pass 09 Oct HO-68 19:08 to 19:27 UTC 53 deg pass 09 Oct HO-68 20:56 to 21:15 UTC 41 deg pass Any comments are very appreciated. 73, Mike DK3WN

1 0

Ground-based Transmitters Interfere With ESA Satellite
by B J 08 Oct '10

08 Oct '10

http://www.esa.int/esaCP/SEMB5USOREG_index_0.html http://www.spaceflightnow.com/news/n1010/07smos/ 73s Bernhard VA6BMJ @ DO33FL

1 0

Colorado QSL Cards Update
by Zachary Beougher 08 Oct '10

08 Oct '10

Hi All, I received the QSL cards from UX5UO Print in the mail today (10/8), and I will get them out to everyone over the next couple days. If you have sent a request, and you do not receive your QSL card(s) within 3-4 weeks, please email me and I will resend it. Also, if you would like a card but have not sent one in yet, please follow the instructions on my QRZ.com page. Thanks again for the contacts! 73! Zack KD8KSN

1 0

Arissat-1 at AMSAT Space Symposium
by Andrew Glasbrenner 08 Oct '10

08 Oct '10

http://www.youtube.com/watch?v=AgNM290k7-w Sent from my iPhone

1 0

Re: AO-7 mode A experieces from KP35
by Bob- W7LRD 08 Oct '10

08 Oct '10

Hello Mika and AO-7 fans I to have made many attempts at AO-7 mode A. These efforts go back to the days of RS-15. I have noticed that my HF antenna for 10M is a 4 element cubical quad. It is cut for a frequency much lower in the band. As a result the reflector seems to act more like a director at 29.45Mhz. Therefore signals are better off the back of my quad than the front. From Seattle Wa. CN87 I have made several attempts at JA contacts. Only one time I was able to copy a partial call from JA. Local U.S contacts are not a problem. When it comes to stretching the footprint that's where the "fun" begins. Mode A I think requires a bit more uplink power. If we ever get more sunspots propagation on the 10 meter gets interesting. I believe it was RS-13 that had a 15M uplink and a 10M downlink. You could work it at times way byond the horizon. Ahhh the "good" old days! Mika, send me note from time to time if you want to try a mode A attempt. We have done it many times on mode B. Good luck. 73 Bob W7LRD CN87wk ----- Original Message ----- From: "Mika Siira" <oh8mbn(a)suomi24.fi> To: amsat-bb(a)amsat.org Sent: Friday, October 8, 2010 2:09:44 PM Subject: [amsat-bb] AO-7 mode A experieces from KP35 Hello folks, I have been mostly mode B user on AO- 7 satellite but today I decided to try mode A from my summer QTH. I have two antennas for downlink (vertical and Spiderbeam with four elements for 28MHz) and no problems for receiving signals from the sat. Of course because of the polarsation change switching between these antennas during the pass gives best results. For the uplink I have used FT-817 (5w power) to 9- element yagi, unfortunately SWR is high above 145MHz. On every pass that I tried today I have heard my own signal on downlink (weak but heard). What is the recommended power level for mode A (if there is one)? From my previous visits to my summer QTH I have heard some japanese stations and satations from stateside, so this mode would be worth to try. On mode B from my city location 5-15 watts is well enough. What kind of antennas people are using on mode A? Mika, OH8MBN _______________________________________________ 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

1 0

AO-7 mode A experieces from KP35
by Mika Siira 08 Oct '10

08 Oct '10

Hello folks, I have been mostly mode B user on AO- 7 satellite but today I decided to try mode A from my summer QTH. I have two antennas for downlink (vertical and Spiderbeam with four elements for 28MHz) and no problems for receiving signals from the sat. Of course because of the polarsation change switching between these antennas during the pass gives best results. For the uplink I have used FT-817 (5w power) to 9- element yagi, unfortunately SWR is high above 145MHz. On every pass that I tried today I have heard my own signal on downlink (weak but heard). What is the recommended power level for mode A (if there is one)? From my previous visits to my summer QTH I have heard some japanese stations and satations from stateside, so this mode would be worth to try. On mode B from my city location 5-15 watts is well enough. What kind of antennas people are using on mode A? Mika, OH8MBN

1 0

Fwd: [Moon-net] 432 EME
by Edward R. Cole 08 Oct '10

08 Oct '10

>At 10:06 AM 10/8/2010, Sebastian wrote: >>After being on 2 meter EME for about a month, I tuned my rig to 432 >>MHz this morning and copied OK1DFC at -20dB. I posted on the N0UK >>logger and Zdenek asked me to call him. I had nothing to lose so I >>obliged. Much to my surprise, we had a QSO, my first 432 EME contact. >> >>Next, DL7APV, Bernd asked me to look for him on 432. Bernd and I >>had a sked on 432 a few weeks ago, but neither one of us was able >>to be on the air at the time. Today, I copied him at -22dB and >>started to call him, he copied me and sent me my report, but then >>his signal was lost. Bernd said he had a problem with his power >>supply, as smoke was coming out. I do believe that is a >>problem! So we just missed completing the QSO. >> >>Finally, WA4NJP asked me to look for him on 432 as well. I copied >>him at -25dB but lost his trace. >> >>Many might be wondering why I'm posting this. Well it's because I >>didn't think I had any chance of anyone ever hearing me on 432 EME. >> >>My station: Kenwood TS-2000 with 50 watts output, into an M2 >>436CP30 single antenna & mast mounted preamp; this is a circularly >>polarized antenna which I use for satellite >>contacts. Unfortunately I'm in an area of the country where 50 >>watts is the maximum on 432 without special permission. >> >>So don't congratulate me, congrats go to OK1DFC, DL7APV and WA4NJP >>for having fantastic stations that can hear such faint weak signals! >> >>73 de Sebastian, W4AS EL95 > >But I will congratulate you for trying 70cm-eme with a small >station. Sebastian's example should encourage more non-eme'rs with >432 stations to try eme. > >I have only four contacts so far running 24w and 85w. I do have >more gain using my 4.9m dish, which is not exactly optimum at this >frequency, but may have about the gain of four yagis (est. 24-25 >dBi). I would not have tried it on 432 except the challenge of >receiving Arecibo prompted me to look around for a suitable >antenna. I would have used my M2 436CP42 (big brother to >Sebastian's antenna), but could not point it since I burnt out a >circuit in the az-el rotator. The M2 is part of my satellite >antenna system. BTW I copied HB9Q with that antenna a couple years ago. > >I hastily built a two element quad from insulated #12 house wire and >a short section of 1-inch pvc pipe for my feed. I installed my >Mirage D3010 on the back of the dish alongside my 60w 23cm PA. I >get 24w drive from the shack to drive the amp to 85w with about 79w >at the feed. > >But my first two contacts were with DL7APV and UA3PTW running my >FT-847 barefoot (24w at the dish). All my contacts are with larger >stations (as expected), but so what. If you get a few contacts and >like this, then maybe this will encourage building a larger station >for eme. Even if not, you can have some fun and provide new >contacts with the "big guys"! > >432 is currently the only band I am QRV (only temporarily). I have >some issues to work out on my 144 HVPS to be back on 2m-eme. I am >waiting delivery of a new 1296/28 xvtr to complete my station on 23cm. > >73, Ed - KL7UW >Bold face text my emphasis 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-QRT*, 432-100w, 1296-QRT*, 3400-winter? DUBUS Magazine USA Rep dubususa(a)hotmail.com ====================================== *temp

1 0

HO-68 FM live audiostream on (Oct 8th)
by PA3GUO 08 Oct '10

08 Oct '10

HO-68 FM live audio stream will be running again the rest of today (Oct 8th): http://www.pa3guo.com/webradio.html You will hear noise when the satellite is not overhead my station (JO21RJ, Netherlands, Europe). Let me know if there would be interest to switch to AO51 or the 70cm beacon of a Cubesat, for example tomorrow, Saturday Oct 9th. -- Henk, PA3GUO

1 0

ANS-281 Special Bulletin - 2010 AMSAT Symposium Streaming via Echolink
by JoAnne Maenpaa 08 Oct '10

08 Oct '10

SB SAT @ AMSAT $ANS-281.01 ANS-281 Special Bulletin - 2010 AMSAT Symposium Streaming via Echolink AMSAT News Service Bulletin 281.01 >From AMSAT HQ SILVER SPRING, MD. October 8, 2010 To All RADIO AMATEURS BID: $ANS-281.01 The 2010 AMSAT Space Symposium will make audio streaming of the presentations and the Annual General Meeting available via the AMSAT Node on Echolink. The full Symposium Schedule is available on-line at: http://www.amsat.org/amsat-new/symposium/2010/SymposiumSchedule.php A summary of the planned presentations follows below. The times listed are US Central Daylight Time (UTC - 5). Friday, October 8 1300 - 1315 Symposium Opening Remarks and Introductions 1315 - 1345 Mark Hammond N8MH, AO-51 Battery Capacity & Spin Trends 1345 - 1415 Paul Wiedemeier KE5LKY, GEO-Eagle Data Multicast 1415 - 1445 Keith Pugh W5IU, Amateur Radio on the ISS 1445 - 1500 Break 1500 - 1520 Keith Pugh W5IU, Successful Hamfest Satellite Demos 1520 - 1540 Tony Monteiro AA2TX, AMSAT-FOX Preview 1540 - 1600 Nick Pugh K5QXJ, Univ. of Louisiana Satellite Program 1600 - 1620 Tom Clark K3IO, ElmerSat - A Modest Proposal 1620 - 1640 Bob Bruninga WB4APR/Douglas Quagliana KA2UPW, Psat/APRS 1640 - 1710 Alex Harvilchuck N3NP, NextGen Satellite 1710 - 1715 Closing Remarks Saturday, October 9 0745 - 0800 Opening Remarks/ Tony Monteiro AA2TX, ARISSat-1 Team Introduction 0800 - 0830 Gould Smith WA4SXM, ARISSat-1 Overview 0830 - 0900 Tony Monteiro AA2TX, ARISSat-1 Software Radio Technology 0900 - 0930 Phil Karn KA9Q, BPSK-1000 format for ARISSat-1 0930 - 1000 Douglas Quagliana KA2UPW, ARISSatTLM Software 1000 - 1010 Break 1010 - 1030 Robert Davis KF4KSS, Calculating Available Power 1030 - 1050 Tony Monteiro AA2TX, ARISSat-1 Power System 1050 - 1120 Gould Smith WA4SXM, Assembling ARISSat-1 1120 - 1150 Robert Davis KF4KSS, ARISSat-1 Vibration Testing 1150 - 1200 ARISSat-1 Wrap up 1200 - 1300 Lunch Break Saturday, October 9 1300 - 1330 Awards Presentations 1330 - 1400 Barry Baines WD4ASW, AMSAT and ITAR: Lessons Learned 1400 - 1420 Bruce Perens K6BP, Codec2 Alpha V0.1/LGPL license 1420 - 1440 Mike Stipick KC4RI, Computerized Satellite Tracking 1440 - 1500 Bob McGwier N4HY, Flex Radio V/U Module 1500 - 1520 Stephen Turner K3HPA, 100 Watt VHF/UHF Amplifier 1520 - 1530 Break 1530 - 1700 Annual General Meeting [ANS thanks the 2010 Symposium Committee for the above information] /EX

1 0