December 2006 - AMSAT-BB - mailman.amsat.org

Amateur Satellite Papers at IARU Region 1 Interim Conference
by Trevor 19 Dec '06

19 Dec '06

There are a number of papers relating to the Amateur Satellite Service that have been submitted by the RSGB to the IARU Region 1 Interim Conference which will be held in Vienna from February 24 to 25th 2007. The papers for the conference have been posted to http://www.iaru-r1.org/IARU%20R1.htm The preliminary version PDF is at: http://www.iaru-r1.org/vienna_2007_preversion.pdf The RSGB papers that will be of interest to the Amateur Satellite community are: B01 - Increased Amateur Satellite Service 2 Metre Usage - RSGB Proposes the segment 144.315-144.365 MHz for CW/SSB Linear Transponder Downlinks B02 - Bands above 275 GHz - RSGB All proposed bands to be for Amateur Satellite Service as well. B13 - Allocations at 3400 MHz - RSGB Proposes Region 1 Amateur and Amateur Satellite allocation. B14 - Microwave Spectrum Threats - RSGB Details threats to our allocations B15 - 23cms Bandplan - RSGB 1240-1250 MHz B16 - Amateur Satellite Service Spectrum Additional VHF and Microwave Satellite allocations There is also a paper submitted by EDR - B22 - which proposes 144.630-144.660 MHz for Amateur Satellite downlinks. My personal view is that this in unfeasable as it conflicts with bandplans in the rest of the world. I consider the RSGB paper B01 144.315-144.365 MHz to be the better choice. RSGB Spectrum Forum Committee pages for C5 (VHF-UHF-uW) http://www.rsgb-spectrumforum.org.uk/iaru_reg_1_c5_committee.htm Yahoo Reflector for Discussion of C5 (VHF-UHF-uW) Papers http://uk.groups.yahoo.com/group/ukc5discussion/ 73 Trevor M5AKA --------------- Daily Amateur Radio RSS News: http://www.southgatearc.org/ Email your news items to: editor at southgatearc.org News On Your Website: http://www.southgatearc.org/rss/index.htm News On Your PC: http://www.southgatearc.org/rss/newsreader.htm Upload Your News: http://www.southgatearc.org/news/your_news.htm --------------- Send instant messages to your online friends http://uk.messenger.yahoo.com

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IARU Region 1 Interim Conference - Amateur Satellite Service Spectrum
by Trevor 18 Dec '06

18 Dec '06

The following draft paper on the Amateur Satellite Service Spectrum is being submitted by the RSGB to the IARU Region 1 Interim Conference in Vienna. --------------- International Amateur Radio Union Region 1 Interim Conference, Vienna, 24 to 25 February 2007 Subject Amateur Satellite Service Spectrum Society Radio Society of Great Britain Committee C5 - VHF/UHF/Microwave Committee Contact Murray Niman G6JYB, (Microwave Manager) Background The Amateur Satellite Service is faced with more restricted allocations than the Amateur Service, and this is compounded by both interference threats and other restrictions that inhibit harmonised usage. Considering that · There are increasing levels of harmful interference from ISM etc in the 2.4GHz band · There are concerns regarding radars and Galileo in 23cms · Region 1 does not have any Amateur Satellite allocation in the 3.4GHz band, in contrast to Regions 2& 3 (not even within CEPT EU-17/23) · The 6 metre band is increasingly allocated as an amateur allocation by many countries · That Wimax, Fixed Wireless Access and future Intelligent Transport Systems threaten the 5.8GHz Space-Earth allocation. · Some allocations are additionally restricted by being Earth-Space or Space-Earth only. · Satellites can have a significant in-service lifetime that can complicate a phased frequency migration Proposals All IARU Region 1 societies request that the following additional Amateur Satellite Service bands be studied and considered, perhaps as a package, for a future WRC agenda item 50-51 MHz 1240-1250 MHz 2300-2330 MHz 2390-2400 MHz 3400-3410 MHz 5650-5670 MHz (Currently Earth-To-Space only) 10350-10400 MHz ---- RSGB Spectrum Forum Committee pages for C5 (VHF-UHF-uW) http://www.rsgb-spectrumforum.org.uk/iaru_reg_1_c5_committee.htm Yahoo Reflector for Discussion of C5 (VHF-UHF-uW) Papers http://uk.groups.yahoo.com/group/ukc5discussion/ 73 Trevor M5AKA --------------- Daily Amateur Radio RSS News: http://www.southgatearc.org/ Email your news items to: editor at southgatearc.org News On Your Website: http://www.southgatearc.org/rss/index.htm News On Your PC: http://www.southgatearc.org/rss/newsreader.htm Upload Your News: http://www.southgatearc.org/news/your_news.htm --------------- ___________________________________________________________ All new Yahoo! Mail "The new Interface is stunning in its simplicity and ease of use." - PC Magazine http://uk.docs.yahoo.com/nowyoucan.html

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TS 2000 Auxilarycontrol For Satellites
by Fred A Parker 18 Dec '06

18 Dec '06

Has anyone tried to use the Kenwood TS-2000 in its remote control or Sky Command modes for satellite work? I would like to set up a station for our club so anyone within 2 meter simplex range could use a common satellite ground station. Is this possible within the new FCC rules allowing auxiliary station control in portions of the 2 meter band? Fred KF0AK

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Re: PC-based filtering software?
by Tony Langdon 18 Dec '06

18 Dec '06

At 06:16 PM 12/18/2006, Dave hartzell wrote: >Does anyone know of any PC, Mac or Linux-based software that does >audio noise filtering, enhancement, notching, etc.? Real time of offline? There's software that does both, some free, some shareware, some commercial. I'm suspecting you're after something to work in real time. There is a lot out there, best I can suggest is to search Google, but be aware that some operates on files, and other software acts as a real time filter. Can't think of any titles off the top of my head... 73 de VK3JED http://vkradio.com

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ship radar antennas
by Kyle Yoksh 18 Dec '06

18 Dec '06

Hello, Please excuse the off-topic question, but a recent Mythbusters episode (yes, I really like that show!) has me intrigued about antennas, namely the rotating ship radar antennas. I'm sure that some of you on this list have forgotten more about the subject than I'll ever hope to know, like Bob, WB4APR.. I've done the standard Google for "ship radar antenna", etc but the best I can find is an outfit wanting to sell me one. I guess that'd be one way to learn about them, but I also lack a boat to install it on.. hi hi I'm looking for more specific info on the equipment and antenna(s) involved, how they work, RF output and frequency(s) involved, etc.. Anyone have time to elmer me on the subject, suggest a good book to read, etc? Please reply off-list to k0kn at amsat.org. Thanks Kyle Yoksh KØKN Olathe, Kansas

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Antennas
by Stephen Brown Jr 18 Dec '06

18 Dec '06

I've been reading up with great enthusiasm about the amateur payloads being carried into space lately and I would definitely like to take advantage of them. The biggest thing that has always kept me from doing anything with the birds full time has been a decent antenna array. At the moment, my sat station consists of a Kenwood TH-D7AG and an arrow handheld antenna. While it works fine, and I have made close to a dozen contacts or so with it, it's a little discouraging to be outside with it in the winter months. I know this question probably gets asked many times, but what would be the best antenna to work LEO birds like AO-51 and some of the cubesats coming online here soon? Looking at some of the commercial antenna systems available are a little out of my budget, and I absolutely suck at building my own and don't really enjoy that aspect of the hobby anyhow. I'd also like to do something without an AZ/EL rotor, as I can't fit that into particular setup at this point in time. So I guess in essence what would be the best "bang for the buck" for what I am trying to accomplish here? 73's Stephen N1VLV

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GeneSat-1 update - primary experiment has started
by Ralph Wallio, W0RPK 18 Dec '06

18 Dec '06

By all indications GeneSat-1 is a healthy spacecraft. Analysis of 70cm telemetry data received and reported by several Amateur Radio OSCAR operators worldwide shows thermal and power systems to be nominal. The S-band telemetry and command link has been successfully tested and has been used to manage spacecraft stabilization. It is now being used to start the primary biological experiment which will begin 18Dec06 13:00UT. >From the GeneSat-1 Operation Log via http://genesat1.engr.scu.edu/log/opslog.htm: --------------------- ATTENTION - HAM RADIO CONTEST PARTICIPANTS - the mission's Amateur Radio Grand Prize will be awarded based on beacon packets received during the active biological growth period. This period begins with the Start Experiment command that we may be sending early morning PST on 12/18/16. The growth period, and therefore the contest, will nominally last for 96 hours, although that period may be extended depending on the temperature profile during that time. Updates will be posted here and details of the contest are here. But get ready!!! CK --------------------- See http://www.crestnrp.org/genesat1/ahc.html for contest details. Amateur Radio OSCAR operators should forward captured telemetry data via http://genesat1.engr.scu.edu/beacon/beaconsubmission.htm. OBJECT-C TLE is being used for successful S-band high gain tracking: 2006-058C 1 29655U 06058C 06351.77197118 .00031233 00000-0 54238-3 0 46 2 29655 40.0292 69.9166 0004768 165.5870 194.5105 15.50096480 182 GeneSat's 70cm downlink is lower than expected by =>8KHz. For the moment use 437.067 but please observe and report zero Doppler shift frequency at TCA. Good hunting! TNX es 73 de Ralph Wallio, WØRPK W0RPK(a)netINS.net http://showcase.netins.net/web/wallio/ Hubbert's Peak - The Mother of all Perfect Storms

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Re: Wallops Launch!
by Bob Bruninga 17 Dec '06

17 Dec '06

YOu saw it exatly. It was at 7 AM EST. Bob Bob what time was the launch? I was coming home from work this morning and thought I was a Very high Jet at 7am EST come zooming over the horizon from the south and then took a radial left turn towards the east and I lost it in the sunrise. I thought it might have been a fast mover from the Military doing a race track pattern, common up here in the NYC area ever since you know when 73 de Mike

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Re: TNC-24 MK2
by Ronald Long 17 Dec '06

17 Dec '06

I have a TNC-24 Mark II and all documentation including English manuals and schematics. Unfortunately nothing is in computer form. Email to IK8OZV using amsat alias bounces. You can contact me and we will see if we can help you. 73, ron w8gus

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Re^2: Space-Track Keps OBJECT A
by Mineo Wakita 17 Dec '06

17 Dec '06

I compared a 2006-058A of NORAD with preliminary Keps. And I thought that "29653U 06058A" = "GeneSat-1 or TacSat-2". 2006-058A = GeneSat-1 or TacSat-2 1 29653U 06058A 06350.99910588 .00033022 00000-0 58721-3 0 28 2 29653 40.0116 74.6585 0006229 162.5501 197.5512 15.49396203 61 http://www.celestrak.com/NORAD/elements/tle-new.txt --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Dec 17, 2006 ---------------------------------------------

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