I can affirm Bill's comments: I worked 15 stations on 6m-eme, never seeing a trace on the Q65 Wide Graph screen. All contacts were arranged (mostly real-time on ON4KST EME chat board) so frequency was known and audio frequency was shared to improve decoding odds. Often I set F Tol to 100 at first, to allow for frequency differentials, but if I got a hit that produced DF, I then centered the Rx window and narrowed to F Tol of 10. I am no longer QRV for 6m-eme as high local noise made it near impossible (and then high winds made the final decision by bringing down my 40-foot rohn-45 tower and smashing the dual 6m yagi array). At that point I got the message ("you are not doing 6m-eme"). I had near $10k invested and can't do that over again. Efforts will be for 144/1296/3400/10G eme. 73, Ed On 1/29/2023 9:02 AM, N46Jenny via Moon-net wrote: > Les is correct. You do not have to see the trace to decode a very weak > Q65 signal. > > What you need is the ability to receive on exactly the correct > frequency. RF and audio. > > How? 1. Know the know the TX frequency and tone of your potential QSO > partner. By a prearranged schedule or from info on the reflector. 2. > Have correct doopler correction in play. 3. If you are sure of 1 and 2 > set the F Tol narrow. 4. Be patient. > > If you know the station is calling you or CQ, set the frequency and tone > and wait. Like wait a long time. Magic will happen and a QSO will occur. > > One further comment on Les’s response is that setting the F Tol wide in > my experience causes missed decodes. I “play” with the FTol and > sometimes I experience no decodes at 50, but reducing it to 10 or even 5 > causes a sudden decode. > > I always set “single decode” for best results. > > This discussion reminds me of the argument, back in the day, that SSB > (called “Donald Duck” squawk) would never replace AM. It did. > > Bill W3CJK > > >> On Jan 29, 2023, at 10:58 AM, Leslie L via Moon-net >> &lt;moon-net(a)mailman.pe1itr.com&gt; wrote: >> >>  >> Hi David, >> >>    I dont know what your EME setup is, but I am sure it is very >> frustrating to have " seen" and decoded  ONLY a single EME with all >> your efforts.  That would indicate that your challenge is more >> than just the difference between the 2 digital modes.  Shoot me an >> email about the specifics of your station and  maybe able to help. >> >> You mention you prefer JT65 over Q65, because you cant see the Q65 >> signals.   Actually that is a benefit and in the simplest terms allows >> you to decode weaker signals, if set up correctly. >> >>  The visual sync tone to the left of the JT-65 signals uses  a db or 2 >> of the  transmitted signal.  Thats huge !!!!!!!  So to create that >> visual tone,  we waste signal and it actually then makes it more >> difficult to decode the calls. >> >>  I understand the perception  that if you cant see it,  you >> cant decode it.  In actuality Q65  decodes better, and weaker signals, >> if set up correctly.  Open up your F Total so it looks at a wider >> bandwidth, if you are unsure of the exact frequency and let it >> average.  Many of us are GPS locked, so combined with activating >> doppler correction,  the station is always exactly on Frequency, >> without looking at the waterfalls.    One of the things I enjoy >> watching is WSJT-X Q65 mode decode a signal I didn't see at -28dbs.  I >> too only see very large Stations on  the Waterfalls, but that is not >> an issue. >> >> 73 >> Les >> W2LPL >> >> >> >> >> Message: 2 >> Date: Fri, 27 Jan 2023 19:46:46 -0600 >> From: David &lt;doccpu(a)cox.net <mailto:doccpu@cox.net>> >> To: moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com> >> Subject: [Moon-Net]  Q65 vs JT65b on 2 meter EME >> Message-ID: &lt;5665cdde-1857-dd73-2bd2-af4c7794dabc(a)cox.net >> <mailto:5665cdde-1857-dd73-2bd2-af4c7794dabc@cox.net>> >> Content-Type: text/plain; charset=UTF-8; format=flowed >> >> While I have been trying to hear signals off the moon for almost a year >> now, I have only heard dl7apv. So the idea of Q65 to me is daunting as >> there is no way to just look at a waterfall and see a sig unless its >> very strong. If you cant see it maybe only MAP65 could find it. Tho map >> 65 now has to be set for 15, 30, or 60 in a, b, c, or d modes. For >> little guys like me the discussion is mute because if you cant see it >> you cant receive it. >> >> On Sun, Jan 29, 2023 at 4:53 AM &lt;moon-net-request(a)mailman.pe1itr.com >> <mailto:moon-net-request@mailman.pe1itr.com>> wrote: >> >> Send Moon-net mailing list submissions to >> moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com> >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://mailman.pe1itr.com/mailman/listinfo/moon-net >> <http://mailman.pe1itr.com/mailman/listinfo/moon-net> >> or, via email, send a message with subject or body 'help' to >> moon-net-request(a)mailman.pe1itr.com >> <mailto:moon-net-request@mailman.pe1itr.com> >> >> You can reach the person managing the list at >> moon-net-owner(a)mailman.pe1itr.com >> <mailto:moon-net-owner@mailman.pe1itr.com> >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Moon-net digest..." >> >> >> Today's Topics: >> >>    1. Re: Meanwell Power Supplies (Gary Sutcliffe) >>    2.  Q65 vs JT65b on 2 meter EME (David) >>    3. 8.5W @ 10GHz power amplifier (SQ5KTM) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Fri, 27 Jan 2023 17:08:35 -0600 >> From: Gary Sutcliffe &lt;w9xt(a)unifiedmicro.com >> <mailto:w9xt@unifiedmicro.com>> >> To: moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com> >> Subject: Re: [Moon-Net] Meanwell Power Supplies >> Message-ID: &lt;b803dd05-faf0-8718-fe85-265ba2b8a5eb(a)unifiedmicro.com >> <mailto:b803dd05-faf0-8718-fe85-265ba2b8a5eb@unifiedmicro.com>> >> Content-Type: text/plain; charset=UTF-8; format=flowed >> >> I have repaired a few switching supplies with bulging caps. >> Ideally you >> can get the same part, but often times that part has been >> discontinued. >> >> If you must substitute a different cap, make sure you replace it >> with a >> voltage rating at or above the failed one. Also match the ripple >> current >> and ESR specs  as close as possible to the original one. If you >> don't, >> the repair may not last long and the failure mode might be more >> exciting >> (smoke/fire/explosions) than no output and a bulging cap. >> >> Good luck! >> >> 73 >> Gary, W9XT >> >> >> On 1/27/2023 12:00 PM, Mary Brown via Moon-net wrote: >> > Look for bulged electrolytic capacitors on the board and change >> them. >> > That cures 90% of switch mode power supply issues! >> > >> > On 1/27/2023 11:52 AM, Stephen Hanselman via Moon-net wrote: >> >> Dave, >> >> While this is not common I can understand the reason. ?When I >> had my >> >> company one of my customers wanted us to repair switching ?slot? >> >> supplies from several different vendors. We found two that didn?t >> >> support repairs (meanwell wasn?t one of them) and two that quoted >> >> repair prices that were a significant portion of the new price. >> >> >> >> The biggest problem today is that there are no ?real? technicians >> >> anymore. Component level fixers are very rare and switchers are >> >> notoriously hard to fix(i cheerfully detest them). ?So the >> philosophy >> >> of only fixing things that are in warranty makes sense. ?I suspect >> >> that their idea of fixing things is to change boards till it works. >> >> >> >> Steve, KC4SW >> >> >> >> Sent from my iPad >> >> >> >>> On Jan 27, 2023, at 08:38, David Kerl via Moon-net >> >>> &lt;moon-net(a)mailman.pe1itr.com >> <mailto:moon-net@mailman.pe1itr.com>> wrote: >> >>> >> >>> ? >> >>> Hello All, >> >>> I have a Meanwell power supply that needs repair. I have >> contacted >> >>> the company in California and was told they only repair power >> >>> supplies that are under warranty. (Nice product support >> Meanwell. And >> >>> yes, that is sarcasm.) >> >>> >> >>> Is there a company in the US that repairs these supplies? I >> hate to >> >>> waste it. >> >>> Dave >> >>> N9HF >> >>> el99 >> >>> _______________________________________________ >> >>> 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 >> athttp://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 >> <http://www.nlsa.com/nets/moon-net-help.html> >> > >> >> >> ------------------------------ >> >> Message: 2 >> Date: Fri, 27 Jan 2023 19:46:46 -0600 >> From: David &lt;doccpu(a)cox.net <mailto:doccpu@cox.net>> >> To: moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com> >> Subject: [Moon-Net]  Q65 vs JT65b on 2 meter EME >> Message-ID: &lt;5665cdde-1857-dd73-2bd2-af4c7794dabc(a)cox.net >> <mailto:5665cdde-1857-dd73-2bd2-af4c7794dabc@cox.net>> >> Content-Type: text/plain; charset=UTF-8; format=flowed >> >> While I have been trying to hear signals off the moon for almost a >> year >> now, I have only heard dl7apv. So the idea of Q65 to me is >> daunting as >> there is no way to just look at a waterfall and see a sig unless its >> very strong. If you cant see it maybe only MAP65 could find it. >> Tho map >> 65 now has to be set for 15, 30, or 60 in a, b, c, or d modes. For >> little guys like me the discussion is mute because if you cant see it >> you cant receive it. >> >> >> >> ------------------------------ >> >> Message: 3 >> Date: Sat, 28 Jan 2023 18:08:32 +0100 >> From: SQ5KTM &lt;sq5ktm(a)gmail.com <mailto:sq5ktm@gmail.com>> >> To: moon-net(a)mailman.pe1itr.com <mailto:moon-net@mailman.pe1itr.com> >> Subject: [Moon-Net] 8.5W @ 10GHz power amplifier >> Message-ID: &lt;4B1355D3-64BD-43A6-BF58-D8D1325AFD1C(a)gmail.com >> <mailto:4B1355D3-64BD-43A6-BF58-D8D1325AFD1C@gmail.com>> >> Content-Type: text/plain; charset="utf-8" >> >> ?Hello! >> >> I?m not going to finish my 3cm project, so I decided to sell my >> 8.5W @ 10GHz power amplifier. SMA IN - SMA OUT. >> >> Please contact me via email if interested. >> >> Price: 399 Euro plus shipping costs. >> >> Photos: >> https://www.dropbox.com/sh/c2jqcyp1wuerh5h/AAAuP3F76rfxkNJSoyr19M82a?dl=0 <https://www.dropbox.com/sh/c2jqcyp1wuerh5h/AAAuP3F76rfxkNJSoyr19M82a?dl=0> >> >> 73! >> Michal >> SQ5KTM >>