And JT9 is even worse (addictive). If you're a QRP junkie, there's nothing like a 500 mW contact, halfway around the world.
73, matt W6NIA On Sat, 24 Jan 2015 15:58:20 +0000 (UTC), you wrote: >Be Careful with JT-65 it can be addicting >I have nearly every state on every band from 160-10 (and a number of them on 6) >Plus 104 countries (some on nearly every band as well) >And it all started from me just "trying" it one day. > > > > > > > From: Edouard Lafargue <edou...@lafargue.name> > To: Mark <elecraft@mailman.qth.net> > Sent: Friday, January 23, 2015 11:51 PM > Subject: [Elecraft] DATA A mode and WSJT-X > >I tried JT65 for the first time today (there is a first for everything, >right?), and to my surprise, I discovered that for some reason, the DATA >mode is not usable on that program! > > Not 100% sure the mailing-list allows images in emails, so I will try to >describe the issue as clearly as possible: > > - In USB mode, with a flat EQ, I get a flat spectrum apart from the >actual JT9/JT65 chirps, from 200Hz to 3000 Hz > - In DATA A mode, on the other hand, I get a peak around 100Hz, nothing >until 300Hz, then a huge noise peak raising from 300Hz, peaking at 500hz >and going slowly down to 1kHz. Then a big dip in signal/noise centered >around 2kHz. In other words, very distorted signal! > > Image speaks for itself: http://imgur.com/QyqpzEh > > I am pretty sure this does not come from the radio, with a simple >audio waterfall displaying at the same time in another program I don't see >this artifact, but I wonder if anyone else has seen this and can explain >it? Could it be an FFT artifact linked to the sampling rate of the >soundcard and an internal sampling rate of the radio in DATA mode? >Something else ?? > > Kind of scratching my head on this one, maybe smarter/more experience >Hams on the list will have an answer! > > Oh yes: WSJT-X is running on a Mac, not that it should really matter. > >73 de Ed, W6ELA >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to hlyin...@yahoo.com > > > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft@mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to mzil...@roadrunner.com Matt Zilmer, W6NIA -- "Give me six hours to chop down a tree and I will spend the first four sharpening the axe." -A. Lincoln ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
