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

Arecibo
by Bob- W7LRD 16 Apr '10

16 Apr '10

Nill copy till the last 10 min barely out of the noise. The west coast seemed not to hear very well?? 910/40 el. cp yagi. Hope they get the amp running. The video streaming is neat. Better luck tomorrow. 73 Bob W7LRD

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Re: Arecibo heard
by Mark L. Hammond 16 Apr '10

16 Apr '10

I went home for a "lunch break" and was able to copy them on CW (but not SSB) with the following: M2 440-18 (an 11' vertical/linear antenna that claims 14.5 dBd) ARR MSP432VDG-160 preamp (claims 0.55 dB NF) TS-2000X radio, CW mode, filter width betwen 600Hz and 200Hz It wasn't arm-chair copy, but after nudging the array around a bit, I could make out characters and their call. Didn't try to listen to anybody else (assuming they would quite a bit lower). The moon was around 67 deg elevation, right in the small "hole" of the forest canopy growing at my home :) Anyhow, it was fun, and given their low output, will be fun to listen tomorrow with a repaired amp! 73, Mark N8MH On Fri, Apr 16, 2010 at 3:27 PM, Bill Dzurilla <billdz.geo(a)yahoo.com> wrote: > I'm at work and not QRV, but I had no problem copying them with a single 12 el. yagi leaned again the chair when they did the test a couple of weeks ago, and most everyone else gave them good reports. At the time, they were running 50w, a barefoot Kenwood TS-2000. They must have changed rigs if now they only have 20w. And something else must be wrong, because even folks with big antennas are having trouble copying them (more so than the 50w vs. 20w would suggest). > > There's a live feed at http://www.ustream.tv/channel/kp4ao-eme > > Good luck and 73, > Bill NZ5N > >> From: Sebastian <w4as(a)bellsouth.net> >> Subject: [amsat-bb] Re: Arecibo >> To: "Mark L.Hammond" <marklhammond(a)gmail.com> >> Cc: AMSAT BB <AMSAT-BB(a)amsat.org> >> Message-ID: <4141F900-265D-4987-B3BE-59B3834BE01B(a)bellsouth.net> >> Content-Type: text/plain; >> charset=us-ascii >> >> I can hear very faint CW from them. >> >> I'm surprised as I have just a single yagi, and apparently >> their amp isn't working. >> >> 73 de W4AS > > > > > > _______________________________________________ > 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 > -- Mark L. Hammond [N8MH]

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Fwd: [Moon-net] Arecibo Update from the Op room..
by Edward Cole 16 Apr '10

16 Apr '10

Forward from Arecibo (reported on MoonNet): >From: Patrick Barthelow <apolloeme(a)live.com> >To: <moon-net(a)list-serv.davidv.net> >Date: Fri, 16 Apr 2010 11:34:57 -0700 >Folks, > > > >Looks like plenty of updates on Arecibo. I am writing from just >behind the current op team of Jim Breakall, and Joe Taylor and >Angel Vazquez. AS has been mentioned, the > > 3CX-800PA is off line now, but we expect a serious look later > after today's Arecibo window closes. Good to see a lot of > technical talent and spirit among the team for repairing things and > getting the job done, also good to see lots of caution exercised > towards jumping in to find where we lost B+ from the PS to the > amp. No need to rush at the expense of safety...Dr Breakall will > look at the 3CX800 amp after the Moon window closes and will > hopefuly add about 13 db to our signal tomorrw and Sunday. > >Wonderful, very tropical forest venue here, with exotic birds coming >and going here at operating position, probably wondering about the >beeps they hear. Sounds like 20 M CW generally here....Lots of >fun. -Looking forward tomorrow to take a climb to the focus >platform of the antenna.. Best, 73, Pat AA6EG Echoes of Apollo/Arecibo > > > >_________________________________________________________________ >The New Busy is not the old busy. Search, chat and e-mail from your inbox. >http://www.windowslive.com/campaign/thenewbusy?ocid=PID28326::T:WLMTAGL:ON:… >_______________________________________________ >Moon-Net posting and subscription instructions are at >http://www.nlsa.com/nets/moon-net-help.html 73, Ed - KL7UW, WD2XSH/45 ====================================== BP40IQ 500 KHz - 10-GHz www.kl7uw.com EME: 144-600w, 432-100w, 1296-60w, 3400-fall 2010 DUBUS Magazine USA Rep dubususa(a)hotmail.com ======================================

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KP4AO Arecibo Video Streaming
by Trevor . 16 Apr '10

16 Apr '10

http://www.ustream.tv/channel/kp4ao-eme 73 Trevor M5AKA

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SATPC32
by Roger Swickis 16 Apr '10

16 Apr '10

Thanks Mark, Well, I had the same position data in both AOS and SATPC32. I don't know what was happening, but it seems to have magically resolved itself. Both programs now read the same. Strange. But I think we can attribute it to RF getting into the computer. At any rate I'm glad I didn't go ahead and reinstall everything. Oh well - you don't have to be good of you're lucky! Roger VA7MG

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Re: Arecibo, Sun & Moon
by Vince Fiscus, KB7ADL 15 Apr '10

15 Apr '10

At 01:26 PM 4/15/2010 -0800, Edward Cole <kl7uw(a)acsalaska.net> wrote: >At 01:49 PM 4/15/2010, you wrote: > >>I noticed the moon is fairly close to the sun in the sky. There may be >>some solar noise, but I don't know how much noise the sun generates at 432. >> >>KB7ADL >> >>_______________________________________________ >>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 > >Vince, > >The Sun is approx. 20-degrees away from the Moon (today), so it may cause >some degradation of receiver sensitivity, depending on how narrow your >antenna beam is. I will be using a 16-foot dish with 9.9 degree >HPBW. Hopefully, the sun will be down -15 dB or more when I point at the >Moon. But if you are using a 15-dBi yagi yoru beamwidth is about >33-degrees and the sun will be seen by your system. > >I don't have time to research what to expect in degradation, busy working >on getting the antenna ready ;-) > > >73, Ed - KL7UW, Your beamwidth will be a lot more narrower than mine. If I get a chance to give it a listen I'll be using an auto-tracked eight element RHCP yagi with a Landwehr preamp. There was an OM in the area that was an avid EME'er at one time. He has since passed away, I asked him once when is the best time to listen for stations doing EME, Full moon, New Moon, Quarter moon, and he said new moon was worst because of solar noise and also when the sun is within your beamwidth around new moon. KB7ADL

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Arecibo, Sun & Moon
by Vince Fiscus, KB7ADL 15 Apr '10

15 Apr '10

I noticed the moon is fairly close to the sun in the sky. There may be some solar noise, but I don't know how much noise the sun generates at 432. KB7ADL

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Most hams in space at one time??
by edward kacura 15 Apr '10

15 Apr '10

I know this sounds negative, but with all these hams in space, why isn't anyone operating??? Why can't I and all the rest of us earth bound hams contact the ISS with our handhelds and Arrow antennas???? What good is it , to have all these hams up there, and not a one, can make contact with us poor souls on earth??? ???????????????????????????????????????????? 73 de Ed N7EDK ???????????

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50 ohm antenna matcher
by Dave Guimont 15 Apr '10

15 Apr '10

There was a request on here several days ago for a 50 ohm antenna matcher, and by the time I found the file, I accidentally deleted the request... An inexpensive homebrew one can be found here: http://cid-1973adc8c1d3207c.skydrive.live.com/summary.aspx?sa=140581470 See 435QuarterWaveMatcher Probably find the parts in your junk box..... 73, Dave, WB6LLO dguimon1(a)san.rr.com Disagree: I learn.... Pulling for P3E...

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Arecibo
by Bob- W7LRD 15 Apr '10

15 Apr '10

Hello Should I be so lucky as to connect with Arecib o this weekend, what is the proper protocol for a QSO? 73 Bob W7LRD Seattle

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