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EME SSB QSO at 23cm band with OZ4MM 

sq7dqx
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Good signal from OZ4MM, example of phone (SSB) contact on 23cm band using moon reflection (Earth Moon Earth - EME). On my side 3,6m dish, 300W to OK1DFC feed and G4DDK preamp. On OZ4MM side is much more :-)

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19 май 2013

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Комментарии : 54   
@timbroadston8084
@timbroadston8084 5 лет назад
On 1.2 GHz the signal can be verifiable on your own by moving the dish a few degrees down to see if signal disappears. Ducting is possible propagation for this band obviously, but with a method mentioned above can be used to verify EME. I’m giving a thumbs up because I understand this video content.
@gerfmon1
@gerfmon1 3 года назад
My only phone contact on EME was with SM4IVE on 432 MHz back in the 1990's. IIRC he was using a 14 meter dish and I 4x30 ele KLM yagis, a Henry kilowatt, and my trusty Yaesu FT-726R. It was initially a CW schedule, but he was peaking S9, so I grabbed the mic and called him on phone. We completed the contact quickly using cross mode, him on CW, me on phone. lol All the horsepower was on his end, with that massive dish. Great job on doing a 2-way on 23cm! 73 de KD0GS.
@wy6k
@wy6k 6 лет назад
Amazing signal strength! Good job!
@Philg0jba
@Philg0jba 4 года назад
Thank you for posting and well done on your EME system.
@jim-lu7il
@jim-lu7il 3 года назад
Well done and no to the comment of possible ducting. That’s EME ... You can tell by the audio on the receive and the slight echo. I haven’t been involved in EME since 2010. Moved and cant put up my dish. Thanks for the vid!!
@rcas350pilot8
@rcas350pilot8 5 лет назад
Nice QSO on 1296 EME. Done EME for a very short time back in the 90s. Now getting interested again and looking to get the new ICOM IC 9700.
@SignalsEverywhere
@SignalsEverywhere 9 лет назад
Is digital EME fairly stable without having to retune through the qso?
@pumprnickelbred
@pumprnickelbred 6 лет назад
I am genuinely curious how EME is confirmed. How do you eliminate the chance of the signals being picked up by normal propagation?
@sq7dqx
@sq7dqx 6 лет назад
It is simple. Parabolic antenna beamwidth at 1.3GHz is so narrow that interception any terrestial signal is not possible. Lets see how much time I wait for answer after I finish my transmission. It is over 4 seconds. I finish transmitting, after over 2 seconds OZ4MM knows that I finished. He starts and after another over 2 seconds I can hear him. Its all.
@pumprnickelbred
@pumprnickelbred 6 лет назад
Cool, that makes sense. Thanks for the explanation. -KW4QI
@skynet5716
@skynet5716 5 лет назад
Hi congratulation that is a nice ssb EME qso DX on 23cm. i will be curious to now more about your setup ? What us yoyr amplifier, coax reference and which connector and antenna distance from the shack? And how many DB about your 6 meters dish can give fir i can get an idea about PAR W... Wich reception preamp are using? I listen my transmition only one time in my life it was on 11 meter. in 1992 i listen only the end of my call... that was amazing my signal make 36000km one turn from the hearth it was my best dx that is happened to me during few minutes. Thanks for sharing.
@CharlesMartel676
@CharlesMartel676 4 года назад
Very, VERY cool!!!!!
@petercharleslaurent
@petercharleslaurent Год назад
Well done, 73 de F4VTP ex ON4KNG (70cm)
@kd4nqy
@kd4nqy 6 лет назад
what model is that radio???who build that radio???
@sq7dqx
@sq7dqx 6 лет назад
TS2000X by Kenwood + some stuff behind
@andrzejaczmanski4448
@andrzejaczmanski4448 10 лет назад
Gratuluję!
@originalusernamefail
@originalusernamefail 5 лет назад
Gees that’s not bad at all, quite a long qso given it was voice EME. What’s the antenna and PA? In VK, we are flat out at 400 watts pX 😂
@sq7dqx
@sq7dqx 5 лет назад
3,6m dish and 300W out
@tonypino2858
@tonypino2858 8 лет назад
Cool erg mooi groetjes van (Tony pino) uit Nederland
@WelshWidgetMan2O1O
@WelshWidgetMan2O1O 10 лет назад
Wish I still had my TS-2000 but finances got very tight and it had to go. This is what I miss :(
@wseanovostok
@wseanovostok 5 лет назад
Good result for 3,6 m dish.
@LightStreamer
@LightStreamer 5 лет назад
at what frequency is the moon most reflective?
@sq7dqx
@sq7dqx 5 лет назад
There is no specific "the best" frequency for radio waves reflection from moon surface. Antenna is the key. Moon reflects short waves like 14MHz and microwaves like 76GHz. If antenna has a sufficient gain, narrow patern and ones use enough power there is a chance to hear own echo, hear other station transmitting (voice, morse code) or see trace of signal on the screen (digital modes). Gain of antenna, gain of preamplifier and transmitting power on both sides have to be higher then path loss.
@lawrenceindustriesgaming6537
@lawrenceindustriesgaming6537 6 лет назад
Kenwood TS-2000
@____.__._.._
@____.__._.._ Год назад
Jaki to wzmacniacz mocy, solid state czy lampa?
@sq7dqx
@sq7dqx Год назад
SSPA ok 300W
@____.__._.._
@____.__._.._ Год назад
@@sq7dqx Dzięki za szybką odpowiedź. nie chce ci zawracać głowy, ale chciałbym kiedyś mieć własny, i patrze czego koledzy używają. według kogo, np. w1ghz, w6pql ?
@sq7dqx
@sq7dqx Год назад
@@____.__._.._ Ja mam od Berta www.pe1rki.com/
@MrLotari
@MrLotari 6 лет назад
a co to za kenwood ?
@majkelcykaczswag9932
@majkelcykaczswag9932 5 лет назад
ts2000x
@juancarlosgonzalez3692
@juancarlosgonzalez3692 Месяц назад
Qué lindo está ése equipo yo soy radio aficionado en costa rica pero no tengo dinero para comprar uno solo con mi humilde radio de 2metros yaesu.te felicito hermano saludos TI.4.J.C.G
@KandiKlover
@KandiKlover 8 лет назад
oi that callsign lol
@pochonietypasjomrutusultim5875
@pochonietypasjomrutusultim5875 2 года назад
73
@glenng.8254
@glenng.8254 Год назад
I think he said 5:1... Was it 5:1?
@sq7dqx
@sq7dqx Год назад
41
@glennpritchard8097
@glennpritchard8097 7 лет назад
Thumbs down because you don't understand this? Childish....VE6ND
@johnwilson3918
@johnwilson3918 3 года назад
Hi Glenn. I think there are a few Amateurs that believe the Earth is flat and the Moon does not exist. I guess they think that this QSO was fake. I was thrilled after a QSO with cosmonauts on the MIR space (QRP 5W, 1/2w dp) but an EME contact would be the ultimate buzz.
@TankdozerCavalry
@TankdozerCavalry 5 лет назад
I hate to be a party pooper. EME certainly is an impressive feat. But why don't people stick to NATO phonetic? It'd make copying a little easier, especially under these kinds of conditions.
@DvorTerrier
@DvorTerrier 4 года назад
You are not a party pooper, my friend; you are a pedant. Not everybody was born in an English-speaking country; to some ham operators, certain "alternative" words make sense and are easier to hear/understand than the official words. Just like the dude in the video, I personally like "Mexico" more than "Mike" -- it has more character and strength, so to speak, so it's easier to hear it in a pile-up. Go ahead, ARREST me for this GROSS violation)))) Jeeeeez. Report me to your COMMANDER!)))
@gotowy_sp9adc
@gotowy_sp9adc 3 года назад
When i hear "Tokio, Oklahoma, Sugar, Bahamas" I wonder if I'm in kindergarten? Its sounds like shit!! Some kind of disrespect for me. Maybe not every one are English but if know few words to make QSO you can learn few words more to spell in NATO phonetic. Or you can read from paper. If you dont want to, then you are just lazy and you have no excuse.
@TankdozerCavalry
@TankdozerCavalry 3 года назад
@@DvorTerrier It makes my life as a listener harder when people don't use NATO phonetic. You are forcing the other guy to put in extra work to understand you because you couldn't be assed to learn NATO phonetic. Like Gotowy93 SQ9OUE said: it's being lazy. And in my opinion? It's rude. NATO phonetic is here because it makes things easier, not harder. If you can't put in the effort to learn NATO phonetic, why are you a ham at all? Isn't part of being a ham to improve your own skills? For what it's worth? I'm not a native speaker either. Hell, I'm not even a HAM operator at all and *I* use NATO phonetic. What's your excuse?
@DvorTerrier
@DvorTerrier 3 года назад
@@gotowy_sp9adc I agree, if somebody starts replacing MOST words with God know what, then it's not good at all. However, if I personally prefer Mexico over Mike (and I hear quite a few native speakers saying Mexico), I don't think I am committing a crime, or somebody's criticism is really justified. For the sake of an experiment, say Alph, Brav; now say Alpha, Bravo. Which are EASIER to read if you have a lot of QRM/QRN? Consonants at the end make the words less usable for our purpose. Mexico is a much more suitable (STRONGER PHONETICALLY!) word than Mike. Moreover, words with more than one syllable have a bigger punch than one-syllable words -- they are easier to recognize. Have you thought about that? There are MANY rules in ham radio; if on top of it we start being super-pedantic over "PROBLEMS" like Mike/Mexico, we will suck all fun out of the hobby. To compliment somebody for using PERFECT (recommended) phonetic alphabet is a great thing to do! To start giving somebody a hard time over one "wrong" word is disgusting. Most importantly, is it a VIOLATION to say Mexico, really? I don't think so. If somebody feels he is not in the mood to answer my call when I say Mexico -- fine! Luckily, there are much more normal/kind people out there than pedants :) 73, Adam! Hope to see you on the air! W1NM
@MarkPentler
@MarkPentler 3 года назад
Intelligibility first before everything else. If you try the NATO alphabet and it doesn’t work then you try something else. It’s not rocket science.
@UcchinoProduzioniElettroniche
Congratulation! 73 de it9ccq
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