Documento sem título


	Resultados e manifestações aos testes de KP4AO EME

	Mensagens pela Moon-net, Amsat-bb, VHF-DX, Sat-fm, EME-br, Radioescutas

	Comentários referentes as transmissões do dia 16 - 17 - 18 de abril de 2010



	HI All. Signal is 519 here with single yagi.15.8dbi 432.044.8 Mhz. SSB bandwidth. Would be very good copy with good filters. Signal is heard first on EME, then on computer link. 73, Jim Shaffer, WB9UWA. --- A few words heard here using 8 element Maspro yagi and LNA at the feed. Mostly just some 'disturbance' of the noise on Spectran. Even so, pleased to have detected/ heard something. However, to be strictly correct, apart from the QRG, no positive ID it was them. Received about16:50utc. 73 de Sam, G4DDK --- Copying their CW here in Essex JO01FR. In the noise but audible. 19el tonna on ground mounted tripod SSB Pre Amp IC-910 David --- Heard CW with strong QSB on top of a local(?) carrier, with single 2x20 el. X-Yagi,SSB-PreAmp, IC970D, in JN88DF, Vienna, Austria. LHCP yields better signal than RHCP. I hope for tomorrow and +13 dB! Vy 73, Vik OE1VKW P.S. First JT65B signals received today 1519-1531UT from K2UYH (calling --- Well as to be expected, it was very hard copy here on single 19 ele tonna and no preamp into FT736. I did eventually copy CW on peaks at 419. Had problems locating moon visually as it is close to the Sun today. Still, it was a lot of fun and nice to actually hear 20 watts from the Moon on 432MHz. I enjoyed watching the live feed between times, could hear the tropical birds in the background, it sounds like a jungle! Good luck with repairing the amplifier or getting another going for the next pass. 73 David Anderson, GM4JJJ 4L1FP) with -21/-23 on 432.065 MHz. G8OQW --- 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 --- Also hearing them. Be certain, if you can, to try different polarity. It does make a difference. Alan WA4SCA --- 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 --- In march they set up the radios in the antenna structure at the feed; now probably have some feedline loss since relocating to a more amenable operating room. I cannot watch the TV stream since something has turned off my active-X on this computer. 73, Ed - KL7UW --- 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 a 24elem linear yagi+preamp signal here is very very weak could be one or two dits from them. Just hope they can get their linear back i will try JT65B Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE --- I was able to copy the CW signal "fair" at times (when my local pulse noise was down) today around 1840 utc with just a Cushcraft 432-20T (my 1970's antenna) using a SSB 7000 and a TS-2000x with both preamps on. I was talking to a local EME operator on 220mhz (WD4JHD) and would tell him when I heard the signal. He would confirm my reception each time. I will say it was not good enough to work a contact. I was just amazed that I could hear them at all with my "flea" antenna. It's only 4 ft long and was running axial feed to both driven elements. I was elevated between 67 to 70 plus degrees at the time. I never could hear the other station, but did hear KP4AO give someone a 559 report. I hope they run digital mode Sunday to see if I can decode it. 73 all, Rick WA4NVM --- Hi all, Greetings from Arecibo! Many problems today, but also many QSOs.? Our amplifier died about an hour before the start of our moon window.? We therefore ran with a barefoot TS-2000 -- about 30 W in the lab, maybe 25 W at the feed.? Nevertheless, we made 86 QSOs today.? Received signals were many, and some were very strong.? Thanks to all who copied our peanut whistle signal.? We are busy now trouble-shooting the amplifier.? With some luck we will be 10-13 dB stronger tomorrow. In general the pile-up was well behaved, and split-frequency operation worked well.? We were on 432.045 and answering calls between 432.050 and 432.060. Operations tomorrow will be similar to those of today.? Perhaps some SSB QSOs at the start, if we have the amplifier.? Then CW for as long as people are calling.? We'll switch to JT65B if the QSO rate falls to a very low rate.? We certainly will run JT65B for at least half of our moon window on Sunday. Apparently my email handler stripped the URL out of my previous message about live video streaming.? Here it is again, this time I hope with the URL intact: You can see the live streaming of the Arecibo moon bounce event and tests here: http://www.ustream.tv/channel/kp4ao-eme 73, Joe, K1JT --- Today, I could copy them in SSB quite well but at noise level !!! That was surprising for me, I was expecting much better. I made a quick CW QSO without any trouble.... Now I feel happy and sad at the same time as I had the hope to work them on SSB and seems civil to work them only once to give others a chance... (moral dilemma) Could we have some feedback of how things are going on their side ? (specially for sunday end of window) Would be nice to do SSB if band calms down enough to allow it. Luis Cupido. ct1dmk. --- Arecibo RX Test HB9HAL / HB3YDL 16.4.2010 18.05UTC QTH: Domat Ems JN46 Antenna: Tonna 21El PreAmp: 0,4dB NF CL Dipole-Pre-Amp 0,2dB RX: FT-847 Signal up to 6dB over Noise. I also have had a Bird closed to 432.045 MHz Sun Noise 5dB@ 25?El ( ± 1dB measured with calibrated S-Meter) 73! Christoph, HB9HAL --- # Fotos de las actividades del EME 2010-Project.* # # Lo que sucedio esta tarde y esta noche hace unsas horas. # Lo puedes ver en <* http://www.prarl.org/eme2010.htm* > # Actividad de la presntacion de Joe Taylor organizada por # Puerto Rico Ham Amateur Group (PRHAG) y Angel Vazquez (WP3R) # Representando al Observatorio y por supuesto a KP4AO. # # /kp4-genie/ --- Hello from Arecibo: Update for today (Saturday) : we have diagnosed our amplifier problem and are hard at work on repairs.? With any luck we should be good for 350-400 W today.? We have also located a power supply for a solid-state amp that should be good for a bit more power, maybe 500 W.? Keep your fingers crossed...? we should be 10-13 dB louder today. Operating plans for today: SSB at first, then CW.? As before, we Tx on 432.045 and Rx on 432.050 - 432.060.? If we exhaust the CW pileup we will go to JT65B.? In JT65B mode, KP4AO will transmit first on 432.045.? Please call us between 432.045 and 432.049.? Expected QSO pattern will be like this: 1. CQ KP4AO FK68 2.??????????????????????????????? KP4AO K1ABC FN42 3. K1ABC KP4AO FK68 OOO 4. ??????????????????????????????? RO 5. RRR 6.????????????????????????????? 73 (... tail-ender...)?????KP4AO G4XYZ IO83??????? 7. G4XYZ?KP4AO FK68 OOO ... and so on.? We will not send 73s; please feel free to call us following our "RRR" transmission, as G4XYZ did in the example above. On Sunday we may work any mode, depending on available activity.? We will certainly be on JT65B for at least half of our Sunday moon window. Remember: please limit yourself to one QSO with us, regardless of mode. 73, Joe, K1JT?? ... for the KP4AO team
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	Very nice to listen SSB signal from KP4AO on a simple station, just 12 el yagi, 0,5 dB LNA, homebrew converter and SDR receiver! A honest 55- 57 signals! I have also a 400W PA but a moment no way to TX :-( I give a try with my hand-held satellite antenna, a cheap yagi 6 el and also get a faint signals. An awesome experience! 73, Rafael, PY3FF --- Listened very well (RS 52) from 18:15 to 19:00 UTC. xcvr: FT847 Ant: 2 x 16 elements DK7ZB 73es DX Fabio - PY4AJ AMSAT 19748 --- During the last two weeks I was prepared to hold a QSO with KP4AO. I mounted two yagi antennas with 13 elements (with a gain of approximately 17.4 dbd.) .Stacked the two antennas. I bought a rotor G5500 and a Mirage amp d 3010, who arrived in time here in Brazil. But unfortunately nothing listening. I would like to thank dear friend Cor, PD0RKC for informing the address " http://websdr.camras.nl:8901 ". I followed all QSO maintained by the KP4AO team. The emotion was the same. For lack of an antenna analyzer, and my SWR UHF meter to express problem. I lost my amplifier d 3010. Today I'll be back on the web site http://websdr.camras.nl:8901 to listen the QSO' via EME. Thanks. 73' Piraja, PS8RF The Amateur Radio is supportive and helpful in any circumstance. --- Hearing them R3 S1 here in UK. Peaking S3. 19 element Tonna on 4ft ground mounted tripod. SSB SP7000 IC910 David G8OQW --- Hearing test carriers MUCH better today! Give it a listen, they are saying 350W output today (rather than 30W yesterday ;) 73! Mark N8MH --- KP4AO is now 3-3 to 4-4 on USB on my 2x FO-25s in DO21xb...Nice to hear you guys...! 73...Jordan... Mark L. Hammond [N8MH] --- The PI9CAM WebSDR is streaming 70 cm audio now. Nice to see and hear Arecibo. See: http://websdr.camras.nl:8901/ -- Ik gebruik de gratis versie van SPAMfighter. --- Now R5 S5 here in UK @ 18.37UTC What a fantastic signal... David G8OQW --- All, I heard them about 1x2 QSB Tried to call a couple of times, however, I just don't have enough antenna.. KLM 18C My preamp is only the ICOM UHF - I think if I do deeper space stuff, I need a better preamp and a lot more aluminum. Thanks for the education and hopefully, you get a lot of QSO's for those that made it... 73, Dee, NB2F --- Lashed together a temp az-el setup this AM.. all manual,,,calibrted azimuth by Sun,,,,,Heard them on SSB about 3-3/4-4... K1FO 25el and "deaf" IC-910, no pre-amp,. They must have big signal...After they went to CW called seveal times with 75W. just in case I got lucky. They were 559/569 on cw (ssb b/w) about 80% of the time...Windy here blowing antenna around a little. need more antenna, and pre amp,,,better rx, and QRG Loads of fun 73 de Ben W4SC --- FB David. Similar setup here - 19 ele tonna on tripod and homebuilt 0.45dB NF preamp > FT736R. BNOS 100W PA. Heard them very well tonight on CW and SSB. Much better since I added the preamp and they repaired the PA. Called and called - pressed the key as hard as I could, hi. Maybe tomorrow... Thanks for all the fun and excitement again. David Anderson, GM4JJJ --- Hi Nick, K5QXJ Is your KLM 436 a linearly polarized antenna or a circularly polarized antenna ? If it is circularly polarized switch polarization to LHCP because Arecibo transmit RHCP toward the moon but the moon reflect back isotropically a signal in LHCP If your KLM 436 is linearly polarized no matter if it is horizontal or vertical because Arecibo comes to you circularly LHCP About the sun-noise supposing that the gain of your antenna is 16 dBi corresponding to the gain of a dish with diameter of 6.5 feet and that the sun activity yesterdat 16 April was 75 sfu at 2800 MHz (10.7 cm) using the program NOISE.EXE with 75 kelvin for your 1 dB of NF for preamplifier and 70 kelvin for the antenna temperature with the elevation of the sun 75? it outcomes that the sun-noise you should receive as a (S+N)/N ratio is 2.8 dB maximum So you receive the right sun-noise figure from your system no matter if the antenna is linearly or circularly polarized because the sun-noise is a uncoherent signal no polarized. In a separate email I have sent to you the software NOISE.EXE a very simple but powerful program working in DOS 73" de i8CVS Domenico --- Today on my single M2 antenna, many times they are Q5. Their amp has made a difference from yesterday when they were outputting only about 30 watts or so. For those who want to hear them live from a real antenna (25 meter dish!), check out this link: http://websdr.camras.nl:8901/ Move the frequency slider to about 432.044 and they are 20dB over S9! Maybe one day, maybe one day. Hmm, do I have enough room in my yard for a 25 meter dish? Also, I hear them much better on RHCP. And I got my money's worth on my receive preamp. Without the preamp I can't hear a thing. 73 de W4AS --- I didn't hear them at all yesterday, but today they about RST 22 on phone. Using KLM 435-18c and left hand polarization. SSB Elec mast mounted amp. CW should be better. It is interesting to watch/listen to the web cast: http://www.ustream.tv/channel/kp4ao-eme The sign on the op position says 350 watts today. W8EH --- Briefly heard voice on 432.044.500 about 1920 when Moon was 24.5 deg.elevation; maybe the Moon traversed a sidelobe of my yagi? I checked with KL7XJ who is also trying to hear Arecibo to see if he might have been transmitting - he was not. No other 432 SSB stations within 70-miles so that rules out QRM. 73, Ed - KL7UW, WD2XSH/45 --- I'm copying them today. Was able to hear the SSB just barely above noise, marginal copy. On CW, they're between 519 and 529 on my 7 element WA5VJB cheap yagi and mast-mounted SSB electronics premp grafted onto my 2m EME array. I was able to detect the signal yesterday using WSJT, but it wasn't audible. Now I wish I had more power/antenna so I could get a QSO. 73, Sean - VA5LF --- Nothing heard on SSB but as soon as they switched to CW the signal came in very loud! David KG4ZLB EL96 --- Hi all, On a lark, I took my FT817 with ARR preamp and 8-el cheap yagi downstairs to listen for KP4AO. They were about 349 on CW around 2000Z. Unbelievable, I thought. I have tremendous noise of all manmade kinds here in Manhattan. You can only imagine how loud the noise is. Still, KP4AO was in there steadily for as long as I listened, about 15 minutes.. Another reason for my surprise is that the FT817 has no CW filter. With a filter, I'm sure they would have been Q5. Pointing the beam was not critical at all. This all reminds me of W2RS's backyard EME article of some years ago. Are you in there, Ray? Anyone out there with a spare million watt amp? 73, Tony, N2UN --- Very consistant signal 910/40el cp.? I wish they would use dxpedition qso methods for more qso/hr.? This is a very finite opportunity.? Had fun anyway, better luck tomorrow. 73 Bob W7LRD --- This was my experience with a KLM 435-40CX and no preamp into a FT-736R. I had to energize the relay on the antenna in order to hear them. I assume it's RHCP normally, and LHCP when the relay is energized. I actually had better copy during the SSB portion than the CW, but am not sure why that was. --Mike WQ5C --- Lashed together a temp az-el setup this AM.. all manual,,,calibrted azimuth by Sun,,,,,Heard them on SSB about 3-3/4-4... K1FO 25el and "deaf" IC-910, no pre-amp,. They must have big signal...After they went to CW called seveal times with 75W. just in case I got lucky. They were 559/569 on cw (ssb b/w) about 80% of the time...Windy here blowing antenna around a little. need more antenna, and pre amp,,,better rx, and QRG Loads of fun 73 de Ben W4SC --- So, I had pretty marginal copy in both SSB and CW, neither of which were quite good enough to hold a QSO. The odd thing is that CW did NOT improve things, even with the narrow filter on my FT-736R. The antenna is a 2x16 CP thing I picked up at a swap meet (so I don't know the brand). My copy was better with the CP relay UN-energized, so either it's wired backwards, or something is broken. On the man-made satellites, I have used both polarization settings, so I know they both work. Puzzle. There's also a no-name preamp up there, after a bit of coax to get around the rotor. Below the preamp is mostly hardline. Turning on the preamp results in a small but noticeable rise in the base noise floor, so I believe it is working. And I Just got down from the roof, after checking the aiming using the sun. No problem there. I even played with my W9GR DSP box, trying to pull out the signal. Didn't help much. Don't get me wrong - it was a thrill just to hear the moon. But what's wrong with my setup? The only other thing I can think of was that the moon was north-east of me at the time, and that means aiming through a bit of oak tree. Is that the problem? Greg KO6TH --- I heard it last night, around 2045UTC on 432.0564MHz with my 11-element ex-PMR yagi and Kenwood TH-F7E at my QTH in IO75vs. The CW was a bit too fast for me to copy, and it was all a bit noisy (moon pretty close to the horizon) but if I'd stuck in at the Koch method (I should spend more time on http://lcwo.net ) then I could easily have copied it. I'd say I had it about 519. Gordon MM0YEQ --- Here is 2 recordings of april 17 Arecibo EME transmission received on a linear 24 elements yagi with an Icom preamp on an FT-847 60' of LMR- 400. http://www.yourfilelink.com/get.php?fid=541211 http://www.yourfilelink.com/get.php?fid=541210 http://www.yourfilelink.com/get.php?fid=541209 My first observation is while some seems to report great reception with moderate set up? i cannot say my first EME reception is Q5... When you listen the audio file put your volume up as KP4AO is way down in the noise but after a couple of try you will be able to detect some words from them. The CW recording is much better with the maximum of filtering. Conclusion:1- An LEO class satellite station does not make an EME station at all. 2- Accurately reporting a reception by ears is not an exact science... recording tells the truth without any doubts 3- My third file is giving some explanation about why my JT65B program give's me 4 EME call sign: F5BUU KU7Z K3AX IQ2CJ I will try this mode if they used it but as i does not want to be controversial i think the 4 stations that i got on my JT65B screen where probably never transmitting at the time of reception!!! Just read the third file above and you will be able to understand more my point 2! Anyway it was my first EME SWL reception "i hope" as some just tells me it is possible that tropo scater reflection in the caribbean and ducting made some getting the Arecibo signal this way as their EIRP made it quite possible explaining the rapid QSB reported by some station. Here as soon as i move the antenna off by 10 deg Arecibo disappear. Just to pointed out i was listening the HAARP EME test 2 years ago and i was able to copy their HF ionospheric signal and their moon reflected signal much much weaker but some on the world where only able to get the moon reflected signal as they where out of range form the standard HF propagation path. Just to warned those in the tropo scatter/RF ducting path from Arecibo to checked if moving their antenna off the moon make the signal disappear. P.S. If someone is aware of an audio software able to filtered out the noise from a recording just pointed me toward the source. "-" Luc Leblanc VE2DWE --- Hello again! We tried to hear signals on friday 16 with a 10 element yagi but nothing was heard. Yesterday we tried to make contact but it was impossible. The station was a 19 element yagi pointed to the moon, five meters of 1/2" hardline and IC-910. Signals were marginal at best. We were very surprised to see deep QSB in the faint signal. While in SSB only some words could be heard really down in the noise, something like "kilo papa four", few times "kilo papa cuatro", "five nine", "over"... the strong QSB prevented hear anything more. Later when they switch to CW, things were just a bit better. We could heard some individual letters but never a complete calling. We recorded almost the complete moon pass, so I can upload files if anyone is interesting, It was a nice experience because you do not hear every day America on 70cm band, but we were very disappointed, we expected a MUCH stronger signal. If that is the signal we can heard from a mega/giga-watt erp station, it's clear eme is totally out of our capabilities. Anyway, congratulations to all involved and let's hope more eme activations from Arecibo. 73! EA4EOZ --- Miguel, I am not sure what the receiver is like in the IC-910. It may need a decent preamp ahead of it. On Friday I had no preamp on my FT736R and 19 ele tonna. I could just hear KP4 very weak at times (they were QRP). I did hear them much better in March tests when they ran 400 watts, but not super loud. Yesterday I put a HB preamp ahead of the FT736R - NF about 0.45dB gain 15dB and that made huge difference. I copied them all the time, SSB very readable. I even copied their SSB when they were reduced to 20W for a little time. So, that may be your answer, you need a good preamp for 70cm. Good luck, David GM4JJJ --- I also was very disapointed with the results. I heard Arecibo yesterday 17th with very marginal CW signals on a ft-817 and 9 el antena on a wooden boom. No preamp. I expected a louder signal. Does anybody know what noise figure can be expected for a FT-817 with no preamp? Thank you very much. Looking forward Arecibo today. Ramiro, EA1ABZ --- Ramiro, regard it as a very good result that you heard KP4AO with that setup hi! A bare FT817 has at least NF of 10 dB, so a preamp is highly recommended. VY 73, Dick PA2DW --- Unfortunately, I would say that based on your signal report, you clearly have a system problem. It could be a less than optimally designed or constructed yagi, lack of preamp/insensitive front end on your receiver, or a pointing problem. For comparison, I am using just a single M2 432-9WL with a preamp on the mast and then an SSB LT70S transverter and splitting the output from the LT70S to go to an HPSDR receiver and an SDR-IQ that feeds Linrad, so I can record everything using a Linrad "S" file. The antenna has a 21 foot boomlength and is spec'd at 17.3 dBd. I used this setup both at the end of March and again yesterday, and the KP4AO signals have always been quite strong and always Q5, both in late March and again yesterday. I didn't get a chance yet to extract audio from yesterday's Linrad "S" file [I am on call this weekend and just stealing a little time for radio], but I had at the end of March put brief snipits of both CW and SSB from KP4AO on the web. The signals yesterday were qualitatively comparable, though I haven't had a chance to do a quantitative comparison of the two sets of data yet. To give you a point of comparison to let you know what you should be hearing, the audio snippets from late March are at: http://www.nitehawk.com/w3sz/kp4ao1.wav for CW http://www.nitehawk.com/w3sz/kp4aossb4.wav for SSB The CW was recorded using a 2.5 kHz SSB filter [just for grins], and not a narrow CW filter. The SSB was of course recorded with the same 2.5 kHz SSB filter. For any newbies reading this, if you are using a similar yagi and you are not receiving similar strength signals, then you have a problem. If you don't have a mast-mounted preamp, start there. I believe that for all bands 50 MHz and above you need a mast mounted preamp to have what I consider to be satisfactory performance. I have tried it both ways and speak from experience. If you haven't used mast mounted preamps on these bands, either for weak signal terrestrial work or for EME, you quite literally have no idea of what you are not hearing. I think it would be foolhardy to even consider EME [other than listening to KP4AO] without having one. Good luck this afternoon to all, and 73, W3SZ
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	Thanks to the guys at Arecibo for this weekend. I listened solid signals in SSB, CW and JT mode, with a ft 847 and a DEMI uhf 25 elements ATV antenna, at GG66. Some times the signals rise to S1 with the preamp, and i could listen all the time with the preamp off. Tried to call with only 50 w... My amp failed and the 2 x 28 elements antennas of the main station were very bad.... so i did a garden setup and works great... The simplicity is the last stage of the complexity.... Thanks to all, 73?s de PY2BVF - Benito GG66tb --- Wow ... just heard EME with minimal setup (Arrow Antenna and HT). Not discernible, but they are there! Clint, K6LCS --- Hi All! I took my children and have done mini UHF field day. We was listening KP4AO signal here in Israel KM72OC with RST 519 (most of time it was good readable copy) during 19:00 to 19:30. Next setup was used: FT-897D, 6-ele Yagi, no LNA Many thanks for Arecibo team. 4Z5LV, Alex GL 73 --- I also did a FD on my backyard, hi. I had an hard time to point the 21 elem yagi to the moon (it was cloudy and rainy), but around 1930z I heard them on CW 519! WOW. I couldn't belive that signal was coming via the moon! What a thrill. Congratulations to all involved on this amazing experiment. 73 F.Costa, CT1EAT P.S. I also have no pre amp! --- OK, I know nobody is going to believe this but....on my life... I have been outside with an FT-817 connected via a very short piece of coax to a Diamond A430S10R (small 10 element beam modified for handheld use) and headphones and KP4AO was just audible on SSB. Signals were inconsistent but solid enough to copy their callsign and CQ calls around 19.00UTC and the odd information exchange thereafter. Now they've switched to CW copy is a good 80%. No signal strength showing on S-Meter of course but who cares. I would never have believed it had I not heard it with my own ears. Note: NO preamp was used. David G8OQW JO01FR --- Hello all Here ft857 and 19elmnts no preamp or other things. I m on the garden frozen but smilling !! How fun radio ham is ! F8AAR --- KP4AO was 56 in Illinois yesterday & I called him for 1/2 hour in English without results. Then I switched to Spanish and he came right back. Does that mean anything??? Hi Hi. I hope the KP4AO thing brings some new blood to 432 EME.? I run a net on 432.100 monday night at 0100 from northwestern Illinois with my EME setup. Please check in. We start looking southwest and rotate via north to east, SE etc. 73Steve Gross N4PZ / W9OJI --- I know that it is not EME gropup but: 204600 1 -8 3.1 19 3 # SQ7DQX KP4AO FK68 OOO 1 10 50W TS 2000 and 30m coax, 21 el. DK7ZB pointed to horizon with moon el. 13.6 deg file: http://www.enduro.idl.pl/KP4AO_100418_204600.wav 21 DK7ZB is a part of my sat system SP7DQX --- Hi all, I put on the picture of my EME antenna used for RX test in JT65b http://ok1teh.nagano.cz/emepic/kp4ao_at_ok1teh_eme.png I hope you'll like it 73's & tnx for big fun Matej, OK1TEH btw mp3 record of CW operation (23el dk7zb 5,7m boom): http://ok1teh.nagano.cz/mp3/kp4ao_18april2010/kp4ao_18april_2_48b.mp3 --- Heard them in CW with my TH-F7E and a CJU antenna. No difference between horizontal and vertical polarity. Pedro EB4DKA http://eb4dka.laserenadigital.com --- Was not lucky enough to break the pileups, but did have solid signals from Arecibo most of the weekend.? I took Friday off trying to beat the crowds, but found my 432 xvtr was not functioning and spent most of the window fixing the xvtr.? Got it fixed just in time to hear a few CQ's from them before they ran out of moon.? They were only about 519 when I heard them on Friday when they were running 20(?) watts.? Saturday they started out about 6-12db above the noise on SSB before the tube amp failed.? After switching to the solid state amp, they were pretty solid at around 12db above the noise on SSB and 18db on CW.? Sunday they were only about 6db above the noise with some QSB on SSB and pretty solid at around 18db on CW.? When they switched to JT65 they were 18db above the noise -3 on JT65 with about 6db of QSB.? I recorded the 96KHz passband for most of both passes from the Flex 5000a.? If anyone from the Arecibo team wants the files let me know and I can burn to DVD (1-2GB per recorded segment) and I can send it over. Thanks guys for the excitement (even though no completion). Single 9wl K1FO (manual az/el).? Mounted at 45 degrees due mast and elevation mount blockage. ~7.5m of LMR400 to brick amp (~80w at feed) ARR preamp directly after the amp (only 25w rated).? Probably around 1.5db total NF 30m RG213 to DEMI xvtr (still had too much gain from the preamp) Flex 5000A RX, HTX100 TX 73, KR7O DM07 ... Saturday I copied solid signals from DL7APV about 6db out of the noise on JT65 (-14).? Today I copied DL7APV again at -11, UA3PTW -16, PI9CAM -14.? All of them had good audible signals.? KP4AO was -3 for reference.? After the Arecibo window I copied SM4IVE on CW (319-519), HB9Q on CW (319-519) and quickly worked PI9CAM (-13) and HB9Q (-12) on JT65 for my first two 432 completions.? Didn't hear or see any other stations off the moon Single 9wl K1FO (manual az/el).? Mounted at 45 degrees due mast and elevation mount blockage. ~7.5m of LMR400 to brick amp (~80w at feed) ARR preamp directly after the amp (only 25w rated).? Probably around 1.5db total NF 30m RG213 to DEMI xvtr (still had too much gain from the preamp). KR7O --- They were much better today, esp on CW... Listened on IC910 and also K3/XVTR combo. K3 / Xverter MUCH better. Had 25 el K1FO, and about 75 ft LMR900 equivalent. No pre-amp; copied at 55 on ssb / 569 on cw (K3/Xvert) Never worked them, but lots o' fun trying. Thanks to KP4AO gang.. W4SC --- Yesterday I set up my 10-ft 432 Yagi on some lawn chairs in the back yard, with a Mirage D1010N amp running off a marine battery.? I used?an FT-817, and did actually hear some CW off the moon from Arecibo.? It was very weak, and I could only copy it?less than?20% of the time.? The noise figure on the 817 is probably 10-15 db at 432, and it really needed a preamp which I don't have (yet).? But I was encouraged that portable EME using the 817 will be possible with a preamp, especially using WSJT instead of CW.? I have been operating EME for some time but I am new to 432.? ? Today I used the same antenna but listened on my K3/XV-432 and the results were much better.? I was listening on WSJT mode, and copied Arecibo for?some time.? I called but TX problems prevented me from making a QSO (and the pileup!)? ?I could easily hear them through the speaker, best result was -18db on the single 18-el yagi and 25 ft of RG-213!? Amazing!? This was a real thrill.? THANK YOU to everyone down there, and I hope you can do it again!? 73, Eric WD6DBM --- I was hearing a CW signal around .044 about 10 or 15 min after KP4AO went QRT. Just wondering who I heard with my newly assembled 30 year old quad of 19el RIWs. W4DEX --- I enjoyed receiving strong cw signals on Sunday. Thank you very much. I only received, but if you go again in the future I will at least have JT65 available to try transmitting. My station is left over from AMSAT AO-40. Ant: KLM-40CX 20x20 CP Rcvrs: IC-475 and FT-736 BW: SSB on IC-475 and 500Hz on FT-736 Preamp: Advanced Receiver Research MML432VDA. NF: between 0.6 and 1.2dB ? Nothing received at first with RH polarity. Switched to LH and signals were strong. Future Xmtr: Only 100W brick. Thanks again for a fun weekend. I liked the live internet video too, with the mode and operator signs. Nice touch. 73, ron long w8gus I should have added this to my report. Antenna on 40 ft tower. 70 ft of old RG-8 coax to preamp in the shack. ron w8gus --- For this nice event I used my old 20 el. Yagi normaly lying waste in the loft and an old preamp with 1.2 dB NF, 18dB gain and 15 m RG213. Rx was Yaesu FT897D. No txing. Friday: nothing. Saturday: OP not at home. Sunday: SSB nothing. CW, look and hear: www.dj8fr.de/kp4ao/ant.jpg www.dj8fr.de/kp4ao/moon.jpg www.dj8fr.de/kp4ao/kp4ao_1.avi www.dj8fr.de/kp4ao/kp4ao_2.avi www.dj8fr.de/kp4ao/kp4ao_3.avi 73 de Juergen DJ8FR, OH4FR --- We set up a small (11 el) yagi fixed at 65 degrees on a stand in the backyard, 30 ft of LMR600 and a preamp in the shack to an FT-847. Didn't expect to hear much but was able to copy 3x3 SSB signals, 4x5 CW and -10 (!) JT65B. Decoded every transmission on JT65B- amazing....I was calling JT65B on 049, I think that was the message they displayed on the video feed, but no luck getting thru. I am sure that my 100w could have easily been decoded with their -10 signal to me but the QRM even on JT65 must have been fierce ! The QSO rate on JT65 was limiting, of course - took about 5 minutes per QSO, but it does give the very small stations (like mine) a real chance to work them. Fantastic job, guys....can't wait till next time. 73, Jay NY2NY (ex-K2OVS) --- Hi, April 16, qso KP4AO in ssb with his PA out. For Arecibo on 432 MHz, I confirm WA6PY ( ex SM0PYP, hi): /Many years ago, if I remember right 1988 when I was still in Stockholm, KP4I />/ from Arecibo came on 432 during the ARRL EME contest without any prior />/ announcement. /10/17/1987, qso KP4I with 4 Watts 569/559 (RST EME!). For me: 6m dish, 300W, NF>1dB (BFR91!). I thought as a joke local station! RST EME: S5 = good, S6 = Very good the max. R5 = Perfect (95%). Now, a new standard is necessary because it is everything and anything. 73 Philippe F2TU --- You can find some recordings here : http://www.f8arr.org/kp4ao/ My set up was : 19 elements on garden, manually. 1,5m of KX4. FT857d Pc with audiocity under linux for recording on ogg vorbis. no preamp, .. just listenning. Thanks to all KP4AO team ! Regards f8arr --- This past weekend was the 36th Eastern VHF Conference in Endfield, CT, hosted by the Northeast Weak Signal Group. We had a complete 432 EME station on the air and used the club calsign, W1RJA, to make contact with Arecibo, KP4AO. Dave Olean, K1WHS, and Bob Petersen, KB2RWW, provided a tower, rig, KW amp, antennas and everything else to make it all happen. It was a great event! I put together a 10 minute video of the event up on Youtube: http://www.youtube.com/watch?v=ZutOfYLPIMY enjoy! -Steve N1JFU --- I copied them here at 432.0446 in CW using a Yaesu FT-817ND and Elk dual-band yagi with 6 feet of RG8X between the antenna and the radio, no preamp. I copied them in CW between 1958 and 2000 UTC here, then switched to my FT-857D (which will transmit 20 watts on 70cm instead of the 817's 5) just as they were switching to JT65B. When I heard the digital mode, I quickly set up my Acer netbook and SignaLink USB, and copied multiple contacts in the digital mode quite easily - again with just the Elk and no preamp. Congratulations to the stations I copied KP4AO working in JT65B this afternoon - UA4FRL, AF6O, W1ICW, SQ7DQX, SV2DCD, UR4UAR and SV2RM. I tried to reach them in JT65B, and threw all 20 watts at them, too ... hihi. Nothing ventured, nothing gained! What a thrill to hear and copy them on the QRP radio in CW and in the digital weak-signal mode. My congratulations and thanks to Joe Taylor, K1JT, and the KP4AO club for organizing and staging the event. 73 to all, Tim - N3TL --- I forgot to add earlier that signal readings during the JT65B operation were in the -20 dB range. One peaked at -18 dB; the others stayed between -20 dB and -22 dB. I sat on my patio and pointed the Elk at the sliver of the moon I could see at roughly 80 degrees elevation, just to my south. Radio - Yaesu FT-857D Power - Panasonc gel cell battery Antenna - Elk 2M/440L5 Coax - RG8X, 6-foot length Preamp - None Computer - Acer Aspire One netbook Interface - SignaLink USB Software - WSJT7 73 to all, Tim - N3TL --- I was successful working KP4AO and it was quite a thrill for me. The first day, signals were weak. I didn't copy them on USB, but was able to hear them about 40-50% on CW. I called and called for the entire time. (CW) We were taking down the station of W4AD (SK), who enjoyed EME. My hope was to make one last contact from his back yard. Unfortunately, it didn't work out the first day. On day 2, I set up a station my back yard. KP4AO was louder and I was able to copy USB, but the QSB always hit at the wrong time. Inevitably, I heard 599 and 'over'! When KP4AO switched to CW, I was able to copy them about 80% of the time with the QSB. Finally, at 16:25 Eastern, I worked them on CW with my 23 element K1FO yagi, TS-2K, preamp and 175W. I tried several different TX frequencies and was very persistent. The S-Meter never moved and it was like working a typical weak VHF signal. My report is at: http://www.stu2.net/wiki/index.php/MT_Arecibo Thanks to the gang at KP4AO for all their work. I really appreciate your efforts. My first QSO was on 2M with W5UN many years ago and this one was just as special. Again - thanks! 73's Stu2 W7IY --- I worked the all Sunday afternoon to reach a small station installed at home, tonna 21el yagi - 90w brick (50w on the antenna) and not preamp, radio was FT-817 (impress me running well with no preamp), KP4AO was always with a tremendous signal, I was able to copy perfect the SSB part, I call several times in CW but no chance, in JT I try, and try and but also no answer, one hour before they start I did my first EME contact with DL7APV, he was -25 and half hour later I did Dan, HB9Q with -21, both first contacts confirm me system was working well, KP4AO was here most of the time -2, extremely loud. I was expecting and easy job I feel frustrated because it supposed such a BIG dish will give the advantage for small stations, any way at least after years of doing EME in HB9Q Arecibo motivate me to install something at home, even against the curios looks of my neighbors, next step will be 2xM2 and 1kw SSPA, I have the preamp but I didn't manage to install on time. 73 de Alex, HB9DRI --- A couple of video clips taken on my iPhonewhile I listened to the JT tones of KP4AO from my temporary "shack" last night and a photo of the 19 ele antenna used at GM4JJJ.(Taken in March tests). Didn't work them on CW or SSB and didn't try JT. I hope that the whole story from Arecibo will be written up it will be nice to know the details of the PA problems as well as all the technical details of how they fed the dish etc. Thanks again to all involved. The gallery is at: http://bit.ly/aQXpcn 73 David Anderson, GM4JJJ --- Hi, I have been around looking for KP4AO during the weekend and done some very interesting experiences.Saturday afternoon strong winds prevented me to move my small dish,? but in the evening I joined my old time friends IK5AMB and IK5VLS for a UHF field day and a fine dinner at their QTH.With ?a 25 el shark horizontal ?L.Y. (5,5 mt boom), cavity preamp a d IC7000 we followed the SSB pileup for more than a hour , KP4AO peaking up to s5 at times... fine! Sundaynafternoon I had the surprise to receive my first SSTV images on 23 cm during a test from PI9CAM, their text was clear , not bad for a 2,4 mts dish. Later I put again on a tripode my tiny 9 el yagi? tonna (1 mt boom)? in vertical ,? plugged a 0,4db NF preamp on the dipole and with my FT847: KP4AO'sSSB was unreadable, CW was 339 at times with deep qsb, while ?JT65B? was always decoded ?with best sigs at -17 to me. Soon I will put recordings /images ?on my web page. Final results: ZERO QSO, but a lot o fun, a great weekend! THANKS TO EVERYBODY , KP4AO, PI9CAM and EOA crews. 73s CU next we on 23cm! Andrea IK5QLO --- I had better luck with KP4AO off the moon today. It was raining yesterday so I just took the FT790R MKII and the 8 element WA5VJB Yagi. I had an ARR preamp, but it did not work. I could hear the occasional dit and dah, but not much else. Today, I fixed the 2 broken directors on the 11 element WA5VJB Yagi and got the power to the preamp fixed. That made a big difference. I also hauled the TS-2000X out on the deck. I still couldn't copy them on SSB, but I could hear them on CW all the time, and usually good enough to copy their side of a complete CW exchange. Say 419 to 529. I did not try a QSO as with the 50 Watt output power limit here in NM, that would have been fruitless, but with 2 or 4 times the antenna it would have been possible. Maybe next time. The moon was visible today so that made pointing easier. I could not see the moon yesterday due to clouds and it did not have much contrast against the sky. I couldn't hear any sun noise, no surprise there, but when the cumulonimbus clouds passed in front of the moon the noise went up a bit which was neat to observe. And the noise increased 3 dB or so pointing to the horizon. Lots of junk in the 70 cm RF ghetto. When KP4AO switched to JT65b, I thought I would be hosed with all the birdies, but it heard right through all the birdies. Amazing. Once I got things figured out, I could copy all of their JT65b transmissions. By the time I had all of the software and hardware issues on my end sorted out though, they had QRT. It was loads of fun though and a good way to spend a spring Sunday afternoon. - Duffey -- James Duffey KK6MC DM65tc Cedar Crest NM --- KP4AO provided lots of fun for me this weekend. Listened Saturday with old W0EYE yagi, only thing I could find in the barn. I copied them but not as expected, But I had a thought when going to sleep last night. This morning I pulled an old 10 foot TVRO dish from the barn. I attached the reflector and driven element of the W0EYE at the focus and set the dish outside the shack window. propped up on a saw horse for elevation control, and waited for KP4AO's moon window. Surprise, Q4 on SSB, soild 559 on CW and -3 on WSJT. Copied the entire pass FB. Only downer was no QSO with my powerful 50 watts. SWR on the dish was 2.1 to 1 so output was rolled back by 50%. I should have taken time to lenghten the folded dipole feed a 1/4 inch or so but still had the most fun with EME for a year or so. Thanks to the FB operators at Arecibo. The live video stream was interesting to watch especially when the amp was them giving problems Looked like a fire drill - HI HI. 73 John W8PAT EN81vg --- I tried the same thing with one of my FO432 11 el beams handheld with a bare FT817 this afternoon. This was right after getting home from the VHF Conference in Connecticut. I could hear KP4AO very well on JT65 right out of the speaker. My XYL heard the tones 25 meters away while she was raking leaves in the yard. I handheld the antenna . While at the conference we experimented with small yagis and a preamp. KP4AO was pretty good on a 7 el wood boom yagi, weak on a 3 element yagi, and very weak but audible on just a dipole. The kicker was when AF1T produced his di-pickle, which was a feedpoint with a small pickle on each side that approximated a full half wave on 432. KP4AO was barely detectable on the pickle antenna. Dale, AF1T says he wants to get more gain by building a cu-pickle quad! This may be the first reception of eme with VBD (Vinegar Based Dipole) technology! We actually erected a small eme station for KP4AO that ran off emergency power and was situated in the back of the rear parking lot at the hotel. It attracted much interest and we had great copy on SSB ad CW with the KP4AO running an amplifier. They were sort of weak on SSB when running just 20 watts. We did manage to work them with the VHF club call, W1RJA. The wx was poor, cold with rain. 73 Dave K1WHS Recording all qso if backup of log is needed --- I have never uttered a controversial word on this bb.?This Arecibo event presented us with a fantastic opportunity.? I truly applaud those who set this event up and ran it.? However-the object is to make contacts, and as many as possible in the allotted time.? The CW procedures were laborious, 73's, multiple calls, excessive id'ing.? They needed a top notch cw op.? They used SSB, CW, then JT-65. I was waiting for them to try FM.? Again, ?I am grateful for the chance to try to participate in this event.? I learned a great deal in preparing and participating in the process.? Their signal? peaked at 569 using a 910 with 50feet of LMR400 to a 40 el CP yagi set for LHCP.? I am sure the JT-65 mode gave flea powered stations an opportunity.?? As I hit this send button they have 40 minutes left.? They might work a few more. grumble!! W7RLD --- Have like I guess, many others spent a lot of time close to the Radio this weekend. Did not make any contact with Arecibo during the test in April due to problems in my TX-line so I started Friday evening and hoped to get a reply and found that signal from there was a bit weaker than expected. When Faraday did the best to block, signals was not better than the normal signal from DL9KR, hi After listening for little more than an hour and half and a few spontaneous calls a reply on CW was a fact but for me I was not sure if the qso was complete. Saturday morning started as planned with a fairly frozen lawn making a trip there with the Tractor for lowering the Antennas possible with no deep tracks. Goal was to replace the Preamp for 13cm in the feed point. But in the cold weather during the change of Preamp I was surprised by 3 cm of Snow in aprox 15 mins. So instead of the Mud-race I wanted to avoid I ended up in a Snow-race. Sun noise seemed fair after the switch but I did not measure any exact figure. Did instead spend most time during rest of the day trying to get my first qso on 13cm. Identified some calls but did not receive any answer to my calling. Some of the strongest where SP6OPN , SV1BTR , G3LTF , DL4MEA and OZ4MM. In the KP4AO Saturday window I was tempted to make another call due to earlier uncertain result and this time I got answer on SSB but again not sure of the Report. This time Arecibo was loud and clear and just listening to the activity was a great entertainment. Later back at 2320 I managed to catch ES5PC to be my first Initial on 13cm! Thanks Viljo for your great Ears! On Sunday also F2TU managed to copy my replies on his CQ and #2 was a fact! Thanks Philippe! Thanks also to Carl SD3F (SM3AKW) for the coaching during the weekend keeping the Spirit on top even if we did not manage to Copy each other on my new Band. Activity on 2320 was by natural reasons lower in evening in US window and I had no cross band. But I heard ES5PC many times during evening always hoping I found a new station. Window for KP4AO on Sunday was monitored from time to time. I also recorded some examples of the enormous level of the signal. I think signal on Sunday was strongest ever! Personally I feel almost spoiled with all this Happenings during the weekend. Eme is fantastic! Vy 73 /Per SM3JQU END --- The day before yesterday I could receive arecibo in SSB and I received several reports, CQs and ending transmissions such as "over over". Yesterday I could receive very clear the CW signal, it was a very steadily signal. When they change to JT65 I called to EB4FXD and he told mo how I had to configure the software. The sofltware in an old version could decode 100%. Pedro EB4DKA could receive the signal witn a single CJU and a THF6, so they encouraged me to try the contact. I can?t belive my eyes!, I have never tried an EME contact but with only 20 minutes spare to shut off they sent your report !!!!!!!!. EA4CYQ KP4AO FK68 000 Thank you vey much indeed to arecibo operators, Pedro EB4DKA y Manuel EB4FXD. Every day this hobby is more fantastic. My setup is: - hy-gain 7030SAT with CP installed (15+15CP) - 90 wats solid amplifier - preamplifier - hard line over 35 meters - And old pentium 2 running JT65 Juan Antonio EA4CYQ --- KP4AO was copied in Wall Township, NJ (home of the first successful moonbounce experiment in 1946 (http://www.k3pgp.org/1946eme.htm)). Equipment was set up in my backyard, and included a handheld 8-element quagi pointed toward the crescent moon through breaks in the cumulus clouds, 6 feet of RG/8 foam, a Yaesu FT-726R, and no preamp. Many CW contacts were copied on Sunday 18-Apr-2010 between 1925 and 1954 UTC on 432.042 MHz, with many 5NN reports being given. The effects of Libration Fading were clearly evident on all transmissions making solid copy somewhat difficult during dips in signal level. Significant levels of RFI in the form of broadband hash and birdies radiated from neighboring homes raised doubt as to whether a preamp would have done much to aid reception. (Fortunately, the moon was at 70+ degrees elevation at the time, minimizing the noise.) At one point, I hung the antenna from my clothesline and could still copy KP4AO! This is only fitting, since the 6 director string in my quagi were fashioned using clothes hanger wire. :-) Congratulations and thanks to all involved! 73, de John, KD2BD --- i was not qrv in 432 mhz EME, but for the event i worked a lot to building a decent antenna.With the help of lot friend here on the reflector, in particular VE7BQH Lionel and DF7KF Dithmar,?i had the pdf and some parts to building a 432 12 el m2 style for the event. The antenna finished Sunday afternoom, i put it on a chair in the balcony and pointint to the moon....with an ssb 432 preamp to a ts-2000 and abt 7 meters of low loss cable. At? 18;40 i beginning to lissen, and surprise i heard some weak SSB signals, after sometimes was most loud and i can copy several calls trasmitting from Arecibo, they swicht in CW and i heard very big signal with the help of linrad....i try to call them with 70 watts and one time i lissen something?like 1FJ !!! but the delay from Linrad no permit to lissen the whole call......then try JT65 the better signal was -7 !!! I enjoy the experiment, glad to heard KP4AO with so loud signal with one 3 meters long yagi.First EME signal in 70 CM for me ! Thanks for the fun... 73, Valter IK1FJI
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