January 2008 - AMSAT-BB - mailman.amsat.org

Re: echo
by Jim Shorney 18 Jan '08

18 Jan '08

On Sat, 19 Jan 2008 00:39:59 -0600 (CST), Jim Shorney wrote: >06:25-06:35 UTC, 7.047 MHz Ooops, that should be 7.407 MHz... 73 -Jim -- Ham Radio NU0C TR7/RV7, TR6/RV6, T4XC/R4C, L4B, NCL2000, SB104A, R390A, GT550A/RV550A, HyGain 3750, IBM PS/2 - all vintage, all the time! HyGain 3750 User's Group - http://groups.yahoo.com/group/HyGain_3750/

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Re: echo
by James 18 Jan '08

18 Jan '08

5:10 - 5:25 UTC 6.7925 CW The HAARP transmitter s5 - s7 Echo s0 to s5 Kenwood TS-440s G5RV Antenna @ 30ft Lavonia, Georgia Grid EM84km 73! James KB7TBT www.kb7tbt.com

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"The Oscar 0 Experiment"
by John Marranca, Jr 18 Jan '08

18 Jan '08

Can hear the transmitted and the reflected tones here in FN02 with my Center-Fed Zepp hooked to my FT-817ND. This is so cool...I'm glad I'm recording it! 73 DE KB2HSH -- _______________________________ John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006

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Re: Lunar Short Wave echo experiment looking for Listen er reports
by Keith N4ZQ 18 Jan '08

18 Jan '08

Your absolutely correct Dave. I missed the fact that the U.S. Naval Observatory page was giving me local time instead of UTC that I was thinking. Damn, now I better get the coffee pot ready. Looks like it will be a late night. To keep this post in line with satellites, if this experiment proves successful does it mean it's possible we could have a bird circling the moon with say a mode K transponder ? :-)) Thanks for the correction Dave... Keith -- Dave Taylor <dave.w8aas(a)verizon.net> wrote: I think you are confusing time zones. Here in Maryland, the moon sets Saturday morning at 4:54am EST, and the experiment is midnight to 2am. For me, the moon will be between 50 and 28 degrees elevation during the experiment. -- Dave, W8AAS On Jan 18, 2008, at 9:16 AM, Keith N4ZQ wrote: > If I'm reading the chart correctly at > > http://aa.usno.navy.mil/data/docs/RS_OneDay.php > > it looks like this event doesn't start till after Moon Set on the > east coast of the states.. Oh well, looks like I won't have to > give up any sleep.. ;-) > > Keith > > > -- Ernie Howard <w8eh.Ernie(a)gmail.com> wrote: > > > They have a web page that confirms the 19/20th UTC. > > http://www.haarp.alaska.edu/haarp/mbann.html > > HAARP-LWA Experiment Schedule > Date From To Transmitted Frequency > (UTC) UTC Hr:Min) (MHz) > 19 January 2008 05:00 06:00 6.7925 > 06:00 07:00 7.4075 > > 20 January 2008 06:30 07:30 6.7925 > 07:30 08:30 7.4075 > > Ernie > W8EH > > > Trevor wrote: >> Some real DX signals to listen out for on 6.7925 MHz and 7.4075 MHz. >> Note one part of the text says Jan 18/19th but when times are >> specified the >> 19th and 20th are given. Could there be a typo here ? anyone know ? >> >> ARR report >> http://www.arrl.org/?artid=7958 >> >> 73 Trevor M5AKA >> --------------- > _____________________________________________________________ Click for free info on paralegal training and make up to $150K/ year. http://thirdpartyoffers.netzero.net/TGL2221/fc/Ioyw6i4t4B8pA7mKHPJCnkE7RGx6…

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echo
by Patrick McGrane 18 Jan '08

18 Jan '08

greetings from patrick n2oeq Managed to hear echo on the regular diamond 500 vertical on 100 feet of 9913 for a few minutes during mid-pass. Apparently the additional downlink power made a bit of a difference. Maybe lesser equipped stations could give the satellite a try. Happy weekend, 73, patrick

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Satellite tracking programming ideas
by Phil 18 Jan '08

18 Jan '08

Thank you for reading this. I'm currently marooned because of flood water, and likely to be so for at least another week, so to pass some time I decided to upgrade my satellite tracking program. Disappointingly, playing with the current satellites in this country is pointless so the programming exercise is purely academic. Originally, my tracking program displayed the link frequencies but I decided that was unnecessary since the radio has a perfectly good display itself. So to make frequency corrections, due to hardware errors, or to listen to another part of the downlink I simply used the radio's tuning knob. The program detected that the receiver's frequency had changed and calculated a new uplink frequency. This requires some manual intervention in that I have to stop the automatic tracking, turn the knob and then restart the tracking. This could take a few seconds which would mean that the tracking could be a few seconds behind. The alternative is to click on an up / down tuning arrow which will stop the tracking and adjust the received frequency. Clicking on a restart button would restart the tracking. I think that's the way satpc32 works. I've probably got too much time on my hands and both methods seem to work equally well. Does one method have an advantage over the other? The update interval has to be fairly short so that a manual frequency change can be quickly detected. I'm currently updating the radio based on time. The alternative is to update based on frequency, say every time the higher frequency changes by 20Hz. This would lessen the number of radio updates during periods where the Doppler effect is at a minimum but does it matter if the radio is undated unnecessary? The rotator bearing is updated every ten degrees but that's to lessen mechanical fatigue. Regards, Phil.

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Re: Satellite tracking programming ideas
by Wayne Estes 18 Jan '08

18 Jan '08

Phil, you correctly point out that full Doppler tuning can sometimes have errors due to either the earth station or the satellite frequency drifting slightly. The best solution to compensate for the drifting depends on WHAT is drifting. In my case, I know my FT-847 435 MHz transmit frequency drifts a few hundred Hz during a long transmission. Consequently, as my transmitter slowly drifts, I turn my FT-847's Sub Tune knob to keep my uplink signal sounding good on the Doppler-tuned downlink. The Sub Tune knob adjusts SatPC32's TX offset. Alternatively, I can click the + and - keys on my keyboard's number pad as required to adjust TX offset in 100 Hz increments. Or I could press the - and = keys to tune TX offset in 10 Hz increments. If your receiver or the satellite's transmitter is drifting, I suppose you should click the CAT menu and use the Downlink Calibration adjustments. Then, in theory, you can tune across the transponder and enjoy perfect automatic Doppler correction. In practice, I frequently have to tweak my TX offset to keep my signal sounding good on the Doppler-tuned downlink, and I often tune manually to chase the downlink from stations that don't use automatic Doppler tuning. Wayne Estes W9AE Oakland, Oregon, USA, CN83ik

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Re: Lunar Short Wave echo experiment looking for Listen er reports
by Keith N4ZQ 18 Jan '08

18 Jan '08

If I'm reading the chart correctly at http://aa.usno.navy.mil/data/docs/RS_OneDay.php it looks like this event doesn't start till after Moon Set on the east coast of the states.. Oh well, looks like I won't have to give up any sleep.. ;-) Keith -- Ernie Howard <w8eh.Ernie(a)gmail.com> wrote: They have a web page that confirms the 19/20th UTC. http://www.haarp.alaska.edu/haarp/mbann.html HAARP-LWA Experiment Schedule Date From To Transmitted Frequency (UTC) UTC Hr:Min) (MHz) 19 January 2008 05:00 06:00 6.7925 06:00 07:00 7.4075 20 January 2008 06:30 07:30 6.7925 07:30 08:30 7.4075 Ernie W8EH Trevor wrote: > Some real DX signals to listen out for on 6.7925 MHz and 7.4075 MHz. > Note one part of the text says Jan 18/19th but when times are specified the > 19th and 20th are given. Could there be a typo here ? anyone know ? > > ARR report > http://www.arrl.org/?artid=7958 > > 73 Trevor M5AKA > --------------- _____________________________________________________________ Click here for a free directory of employee development and training solutions. http://thirdpartyoffers.netzero.net/TGL2221/fc/Ioyw6i4s28jsSbqvMqji812cnCmZ…

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Tnx for Echolink nodes
by Bob Cutter 18 Jan '08

18 Jan '08

Thanks to all the other stations who linked to the overloaded main node, KG4YZY. It made it possible for a lot more of us to listen. 73, Bob KI0G 617 ____________________________________________________________________________________ Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. http://mobile.yahoo.com/;_ylt=Ahu06i62sR8HDtDypao8Wcj9tAcJ

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AO7B
by k3szh＠netzero.net 18 Jan '08

18 Jan '08

It may not be a great feat,but for me working Fabio PY4AJ grid GH70un on AO7B on Jan.17,2008 at 23:35 utc was.Since he was outside my foot print and no schedule.Like they say if you can hear them, you can work them. My next goal and it's a long shot working Mak SV1BSX maybe a bigger antenna again? 73 Joe AMSAT 3788 since 1976 _____________________________________________________________ Click for free information on accounting careers, $150/hour potential. http://thirdpartyoffers.netzero.net/TGL2221/fc/Ioyw6i4s2cOefO1TNoOYZk1pstjz…

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Re: Lunar Short Wave echo experiment looking for Listener reports
by Trevor 18 Jan '08

18 Jan '08

Thanks Ernie and Ed, I couldn't find that Moonbounce page when I first looked on the HAARP site. 73 Trevor M5AKA ___________________________________________________________ Support the World Aids Awareness campaign this month with Yahoo! For Good http://uk.promotions.yahoo.com/forgood/

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Lunar Short Wave echo experiment looking for Listener reports
by Trevor 18 Jan '08

18 Jan '08

Some real DX signals to listen out for on 6.7925 MHz and 7.4075 MHz. Note one part of the text says Jan 18/19th but when times are specified the 19th and 20th are given. Could there be a typo here ? anyone know ? ARR report http://www.arrl.org/?artid=7958 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 --------------- __________________________________________________________ Sent from Yahoo! Mail - a smarter inbox http://uk.mail.yahoo.com

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FL amsat net alternative echolink node
by Andrew Glasbrenner 17 Jan '08

17 Jan '08

If KG4YZY echolink is busy, try N4HHA 44310 or the live stream on www.ni4ce.org. back to net control duties... 73, Drew KO4MA

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QUAKESAT
by Andrew Rich 17 Jan '08

17 Jan '08

Anyone working quakesat ? Seems to have a high power out ? 7 watts ? ---------------------------------------------------------------------------- Andrew Rich VK4TEC vk4tec(a)people.net.au http://www.tech-software.net

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sequencer switching
by w7lrd＠comcast.net 17 Jan '08

17 Jan '08

G'morning My 1.2Ghz system is progressing nicely. I am currently working on a sequencer for "switching around" my amp. I have several good quality coax relays. Are some preferred over others? A couple I have require reversing polarity to switch them back. This is requiring more circuitry and complexity. Are these latching relays necessary? I'm seeing several relays available on ebay. The time spent in transmit is miniscule compared to receive. 73 Bob W7LRD Seattle "if this were easy, everyone would be doing it"

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Florida AMSAT net tonight, with AMSAT-NA President Rick Hambly, W2GPS
by Andrew Glasbrenner 17 Jan '08

17 Jan '08

Tonight's Florida AMSAT net will feature the President of AMSAT-NA, Rick Hambly, W2GPS, discussing current AMSAT projects and developments including a question and answer session. All interested parties are encouraged to participate regardless of location. The net meets at 7:30PM Eastern on the NI4CE and N4HHA repeater systems covering most of central Florida. RF frequencies may be found here: http://www.ni4ce.org/ni4ce.htm and here: http://n4hha.org/ . Echolink users may check in via KG4YZY-R, node number 4429. Please configure all echolink systems to suppress local courtesy tones and IDs over the link. Interested parties may also listen to a live streaming link at mms://repeater.aprsfl.net:2222/ . I hope to hear many familiar calls tonight on the net! 73, Drew KO4MA

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FO-29 schedule Jan. 2008
by Mineo Wakita 17 Jan '08

17 Jan '08

Jan. 2008 UTC 8 3:07 - 9 3:57 - 10 3:02 - 11 3:52 - 12 2:57 - 13 3:47 - 14 2:57 - 15 none 16 2:48 - 17 3:38 - 18 2:43 - 19 3:33 - 20 2:40 - 21 none 22 2:35 - 23 3:25 - 24 2:30 - 25 3:20 - 26 2:25 - 27 3:15 - 28 none de JE9PEL, Mineo Wakita

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Opportunities to support AMSAT's EaglePedia
by Dave hartzell 16 Jan '08

16 Jan '08

We're looking for two to three motivated individuals interested in helping with AMSAT's EaglePedia. EaglePedia is a Wiki and is the central repository for all information on AMSAT's upcoming Eagle spacecraft and possible future missions. AMSAT engineers and the general public will be accessing EaglePedia. Volunteers will be responsible for re-organizing the current Wiki layout, adding new content, and supporting the AMSAT Engineers as they design, build and organize the project's documentation. Ideal candidates will have technical writing, web development, HTML and Wiki experience, possibly with technical backgrounds (hopefully you all have this already!). Knowledge of WikiMedia, MySQL, UNIX and spacecraft engineering and project management is a plus (but not required). This is a fantastic oppurtunity to support one of AMSAT's most ambitious projects! Please contact me off-list for more information or to communicate your interest in helping AMSAT-NA! 73, Dave n0tgd hartzell -at- gmail.com Please put "EaglePedia" somewhere in the subject line.

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Fo-20 status?
by Auke de Jong, VE6PWN 16 Jan '08

16 Jan '08

According to what I have been able to find online, FO-20 was in a state similar to that of fo-29 when it was "taken out of service" due to battery performance issues. Does this mean, that it might still work while illuminated? Currently it is in continuous-sunlight, which would be very handy if all that was required is for the bird to be "enabled" even for just this period of constant-sunlight. Is anyone here able to add to, or subtract from this? Auke VE6PWN Edmonton, AB Canada

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DL59 on the air !!!
by Alvaro de Leon Romo 16 Jan '08

16 Jan '08

Tomorrow Thursday 17th, XE2JA Yahir will try to be in DL59 in the 1550 pass in AO51... This is the first time that this grid will be activated in satellite so keep in touch GL to all Al XE2AT _________________________________________________________________ Tú, como Pedro, gana tiempo buscando en Live.com http://www.live.com

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FS: mint ft-847, fc-20 auto tuner, inrad vox unit
by Eric Fort 16 Jan '08

16 Jan '08

I have for sale a mint FT-847 FC-20 tuner, and inrad vox unit. asking $1300. Please contact me via return email if interested. Eric AF6EP eric.fort(a)gmail.com

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Re: Six Amateur Radio Satellites to Launch in March
by Andrew Glasbrenner 16 Jan '08

16 Jan '08

>From: "Ransom, Kenneth G. (JSC-OC)[BAR]" <kenneth.g.ransom(a)nasa.gov> > >Instead of complaining about what these satellites don't do, maybe getting in touch with the builders and explore ways to add features and capabilities given their limited space. These builders have a license and will be putting a satellite on orbit. Those are two big steps on the road to opportunity. > A HUGE +1 to that thought! Work with these guys on their goals while providing extended missions for hams, invite them into the fraternity and treat them as brothers, not as outsiders. 73, Drew KO4MA

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AO-51 back on the air!
by Gould Smith 16 Jan '08

16 Jan '08

Thanks to Kevin, WA6FWF for taking time off to help upload and start the code, AO-51 is operational in 'normal' mode. V/U analog 145.920/435.300 on TXB at 980 mW & command station digital on TXA Probably change to L/U digital on TXA in the next day or two. 73, Gould, WA4SXM

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Re: Six Amateur Radio Satellites to Launch in March
by OZ1MY 16 Jan '08

16 Jan '08

Hi Bruce, Well said :-) What come into mind is that AMSAT-UK took the opportunity to get a transponder on SSETI Express and as far as I know are now working on something for ESEO. The groups from Delfts have participated in the AMSAT-UK Colloquium for 3 or 4 years. In 2007 more Cubesat groups were represented as well. We (AMSAT) can work in two directions - one to get one or more HEO's or perhaps GEO's up and working - two to make transponders that can be used by the university group satellites as the communication part during their often very short operating periode. When the operating periode ends we have a transponder to use. In AMSAT-OZ we are also working along these lines. We have started a project inspired by David Bernhard on the satellite on a PCB project - but our first priority is to get a transponder ready for inclusion in someone elses satellite. Unfortunately we have limitted resources. Therefor it may take some years. Take a look at: http://wiki.amsat.dk/index.php/Main_Page During the Autumn semester we had students from Spain, France, England Denmark and Poland working on the project - and more to come next semester. 73 OZ1MY Ib

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Re: FO-29 schedule Jan. 2008
by Oscar Diez 16 Jan '08

16 Jan '08

Hi all, I would also greatly appreciate if there would be a ground station in Europe switching FO29 on the south-to-north passes (daylight passes). Knowing a bit about Japan from my professional life it would certainly help to make the offer not just through this mailing list, but to use official channels via the national AMSAT organisations towards JAMSAT. Best 73, Oscar DJ0MY

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