From my home QTH in JO59BR, I should be able to work the moon when it's between 150 degrees and 280 degrees, so for a fair bit of each month. Going further north there are a lot of trees in between and a hill. 

Is it possible to phase 2 loop yagi's to obtain circular polarization? -----Original Message----- From: Kurious George via Moon-net &lt;moon-net(a)mailman.pe1itr.com&gt; To: Thomas S. Knutsen &lt;la3pna(a)gmail.com&gt; Cc: Moon-net &lt;moon-net(a)mailman.pe1itr.com&gt; Sent: Mon, Jun 6, 2022 1:16 pm Subject: Re: [Moon-Net] Getting started on EME - small station I've had great success on 23cm with a 1.9m wire mesh dish. Please email me if you wish more detail. (-: https://contests.arrl.org/soapphotoviewer.php?q=dGX8yOT1XB7eNy0WXFg5fF%2FHL… Bill, KB2SA San Diego, CA On Mon, Jun 6, 2022 at 10:12 AM Thomas S. Knutsen via Moon-net < moon-net(a)mailman.pe1itr.com&gt; wrote: Hello. I have been toying with the idea of getting a station on EME for close to 15 years now, so I figure it's time to get going. From my home QTH in JO59BR, I should be able to work the moon when it's between 150 degrees and 280 degrees, so for a fair bit of each month. Going further north there are a lot of trees in between and a hill. I have been collecting parts for some time in order to do a station setup, although I'm unsure if I should plan on starting on 70cm or 23cm. I believe 23cm has more stations than 23cm? 2M is probably not viable from where I'm living, neither is a dish antenna for higher frequencies. My planned station setup will be: Flex 6600 or Elecraft K3 locked to GPSDO Transverter (I have homebrew for 70cm, and DB6NT G2 for 23cm) Power amplifier (Either 300W on 70cm or a 600W W6PQL brick on 23cm is planned) WIMO yagi ( either 8M 20dBi on 70cm or 5M 22dBi on 23cm) I'm quite unsure with regard to pre-amps. I know there are some nice sub 1dB NF preamps around, and I guess that makes sense since I will be limited in gain with a single yagi? Coax relays, switching and such should not be the hardest thing to get going, I have a well filled junkbox with such parts. For antenna rotation, I have a couple rotors so I should be able to do a setup that tracks the moon fairly well. without too much effort. Does this sound like a reasonable approach? I would like to be able to do CW and digi QSOs with a limited station to start with. Are there any obvious pitfalls I should be aware of? 73 de Thomas LA3PNA. -- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments. _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html

yes, that's true, but loop Yagi is not suitable for this, I can't imagine how to mount two loop Yagi on one boom, rotated 90 degrees in polarization. This can be done using elements made from tubes or rods, but in the case of loops it probably won't work mechanically. 73 OK1VUM S pozdravem / Best regards, Miloslav Hakr tel. +420777144300 Dne 07.06.2022 v 14:22 Barry VE4MA via Moon-net napsal(a): _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html

Yes of course loops are not suitable for mounting on same boom, but probably with a small separation...not recommended anyway...but it would be interesting to see how well it could work ...it unfortunate that the 1296 EME beacon is down Barry VE4MA On Tue., Jun. 7, 2022, 7:39 a.m. Miloslav Hakr via Moon-net, &lt;moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com>> wrote: yes, that's true, but loop Yagi is not suitable for this, I can't imagine how to mount two loop Yagi on one boom, rotated 90 degrees in polarization. This can be done using elements made from tubes or rods, but in the case of loops it probably won't work mechanically. 73 OK1VUM S pozdravem / Best regards, Miloslav Hakr tel. +420777144300 Dne 07.06.2022 v 14:22 Barry VE4MA via Moon-net napsal(a): used not used _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html <http://www.nlsa.com/nets/moon-net-help.html> _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html

My fabric folding dishes use a patch feed. The 1296 MHz patch feed (SM6PGP design) is effectively a 2 port dual polarity (H & V) linear feed. I add a low loss 4-port hybrid to the patch feed and the result is a feed system that can make RHCP and LHCP signals very nicely. With the patch feed, the V & H polarities are on the same axis. It would be interesting to mount two (2) long 1296 MHz yagis on a cross-boom. One yagi configures vertical pol and the other horizontal polarity. Feed both yagis using a hybrid combiner and you might have a circular polarized signal. Remember you need switchable RHCP TX and LHCP RX. The hybrid gives you this. I think a dish (especially a deeper dish) has a major advantage over a yagi because it is a quieter antenna. I have made EME QSOs with a 0.8m dish. :) GL - 73 - Paul - W2HRO On Tue, Jun 7, 2022 at 12:29 PM Barry VE4MA via Moon-net < moon-net(a)mailman.pe1itr.com&gt; wrote: Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html

Paul I assume you have to switch the connections on the Hybrid combiner if you use Yagis. The dish reverses the polarity, anf the yagis will not do this. If this is correct please confirm. Thanks, Fred, N5JXO Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows *From: *Paul Andrews via Moon-net &lt;moon-net(a)mailman.pe1itr.com&gt; *Sent: *Tuesday, June 7, 2022 4:51 PM *To: *Barry VE4MA &lt;barryve4ma(a)gmail.com&gt; *Cc: *mikflathead(a)aol.com; Thomas S. Knutsen &lt;la3pna(a)gmail.com&gt;om>; Gary Abercrombie &lt;gabercr(a)gmail.com&gt;om>; Moon-Net is an e-mail reflector intended for discussion and announcements concerning amateur radio moonbounce communications. &lt;moon-net(a)mailman.pe1itr.com&gt; *Subject: *Re: [Moon-Net] Getting started on EME - small station My fabric folding dishes use a patch feed. The 1296 MHz patch feed (SM6PGP design) is effectively a 2 port dual polarity (H & V) linear feed. I add a low loss 4-port hybrid to the patch feed and the result is a feed system that can make RHCP and LHCP signals very nicely. With the patch feed, the V & H polarities are on the same axis. It would be interesting to mount two (2) long 1296 MHz yagis on a cross-boom. One yagi configures vertical pol and the other horizontal polarity. Feed both yagis using a hybrid combiner and you might have a circular polarized signal. Remember you need switchable RHCP TX and LHCP RX. The hybrid gives you this. I think a dish (especially a deeper dish) has a major advantage over a yagi because it is a quieter antenna. I have made EME QSOs with a 0.8m dish. :) GL - 73 - Paul - W2HRO On Tue, Jun 7, 2022 at 12:29 PM Barry VE4MA via Moon-net < moon-net(a)mailman.pe1itr.com&gt; wrote: If you just cannot handle a dish, for whatever reason, and you have loop yagis...use them....better some success than none. A hybrid coupler can look after polarity switching with a pair of linear & cross polarized feeds. You cannot use loopers on one boom but 2 booms slightly separated should be possible. I the early 1980s I heard my first 1296 EME CW SIGNAL with a single 45 El looped and a 0.5 dB NF preamp...VERY WEAK but with today's preamps and some of the Big guys a contact would be possible. One of the French stations had 8 linear yagis on 1296 for a dxpedition and had an excellent signal. I am sure their receive performance was not great due to the noise contribution of the phasing harness. I will sent some information about use of 4 loopers for EME separately. 73 Barry VE4MA On Tue., Jun. 7, 2022, 9:08 a.m. Gary Abercrombie, &lt;gabercr(a)gmail.com&gt; wrote: Years ago I tried (2) 55el loopers linear polarized and couldn’t hear anyone on CW during an ARRL EME contest. Personally I wouldn’t waste the time as even a small dish is superior. Gary, N8CQ Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows *From: *Barry VE4MA via Moon-net &lt;moon-net(a)mailman.pe1itr.com&gt; *Sent: *Tuesday, June 7, 2022 8:27 AM *To: *mikflathead(a)aol.com *Cc: *la3pna(a)gmail.com; moon-net(a)mailman.pe1itr.com *Subject: *Re: [Moon-Net] Getting started on EME - small station Circular can be generated with 2 linear antennas mounted at right angles polarization wise, and if they are fed with 90 degrees out of phase. This can be done with a hybrid coupler or just an extra 1/4 wavelength of coax line. This sort of arrangement is most often used on 2m & 70 cm for satellite use. I think it does not work very well with long antennas and I would not recommend it for 23 cm EME. 4 x 55 el loopers can work pretty well on 23 cm with attention to details and it will be like using a small dish (1.5m) .You will be able to work quite a number of stations on CW and WSJT. VE4\MO used 4 x45s and QSO'd about 30 JT stations. With a 1.5 m dish I have worked 30 CW stations and more than 30 WSJT stations with limited operating time. You will have better success if you can run more power....100 W minimum at antenna but >300 W will really help with CW Best 73 & GL Barry VE4MA On Mon, Jun 6, 2022 at 2:19 PM WB8PFZ via Moon-net < moon-net(a)mailman.pe1itr.com&gt; wrote: Is it possible to phase 2 loop yagi's to obtain circular polarization? -----Original Message----- From: Kurious George via Moon-net &lt;moon-net(a)mailman.pe1itr.com&gt; To: Thomas S. Knutsen &lt;la3pna(a)gmail.com&gt; Cc: Moon-net &lt;moon-net(a)mailman.pe1itr.com&gt; Sent: Mon, Jun 6, 2022 1:16 pm Subject: Re: [Moon-Net] Getting started on EME - small station I've had great success on 23cm with a 1.9m wire mesh dish. Please email me if you wish more detail. (-: https://contests.arrl.org/soapphotoviewer.php?q=dGX8yOT1XB7eNy0WXFg5fF%2FHL… Bill, KB2SA San Diego, CA On Mon, Jun 6, 2022 at 10:12 AM Thomas S. Knutsen via Moon-net < moon-net(a)mailman.pe1itr.com&gt; wrote: Hello. I have been toying with the idea of getting a station on EME for close to 15 years now, so I figure it's time to get going. From my home QTH in JO59BR, I should be able to work the moon when it's between 150 degrees and 280 degrees, so for a fair bit of each month. Going further north there are a lot of trees in between and a hill. I have been collecting parts for some time in order to do a station setup, although I'm unsure if I should plan on starting on 70cm or 23cm. I believe 23cm has more stations than 23cm? 2M is probably not viable from where I'm living, neither is a dish antenna for higher frequencies. My planned station setup will be: Flex 6600 or Elecraft K3 locked to GPSDO Transverter (I have homebrew for 70cm, and DB6NT G2 for 23cm) Power amplifier (Either 300W on 70cm or a 600W W6PQL brick on 23cm is planned) WIMO yagi ( either 8M 20dBi on 70cm or 5M 22dBi on 23cm) I'm quite unsure with regard to pre-amps. I know there are some nice sub 1dB NF preamps around, and I guess that makes sense since I will be limited in gain with a single yagi? Coax relays, switching and such should not be the hardest thing to get going, I have a well filled junkbox with such parts. For antenna rotation, I have a couple rotors so I should be able to do a setup that tracks the moon fairly well. without too much effort. Does this sound like a reasonable approach? I would like to be able to do CW and digi QSOs with a limited station to start with. Are there any obvious pitfalls I should be aware of? 73 de Thomas LA3PNA. -- With Best regards, Thomas S. Knutsen. Please avoid sending me Word or PowerPoint attachments. _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=emailclient> <#m_-3918383796993543162_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> _______________________________________________ Moon-Net posting and subscription instructions are at http://www.nlsa.com/nets/moon-net-help.html

From my home QTH in JO59BR, I should be able to work the moon when it's between 150 degrees and 280 degrees, so for a fair bit of each month. Going further north there are a lot of trees in between and a hill.