No Mal, WSPR is constant envelope so no linear TX is required. And it produces no keyclicks during the transmission. I think Rik's quantitative SNR comparisons were in no way haphazard but very caref
Jay, Am 23.09.2012 16:01, schrieb [email protected]: Markus, i would agree to move to WSPR-32 now. Same QRG. Will be interesting to see the new spectrograms and the possible distances! Stefan Ass
I real do not know. The signal was nice and clear in the waterfall of wspr. Bay the way, your wspr-32 is really strong in the waterfall of Specrum Lab now . I will try to decode. la5vna S Den 23.09.2
And a envelope restoration class e/d is 90 + , but may be imd -35 dB s/n ? G. From: Rik Strobbe Sent: Saturday, September 22, 2012 10:36 PM To: [email protected][email protected]
Thanks very much Jay, Terry and Chris for taking the effort to receive and report our experiment, and of course to Stefan for suggesting it in the first place. I think the expected gain in sensitivit
Like you say Stefan the modes are changing daily and there are too few operators to cover all these various modes. I expect it will all fizzle out eventually and then back to CW, QRSS and possible OP
hi, "simple" = - modulation ON-OFF , no needs for linear P.A. - no precise timing (= little beacons stand_alone. no PC.) - TX only 50% on. (to take in mind when compare whith other "continous" mode a
1. A linear (class AB push-pull) amplifier can have 60-70% efficiency 2. WSPR is an FSK mode and does NOT need linear amplification 73, Rik ON7YD - OR7T Van: [email protected] [owner
I doubt if WSPR is as good as OPERA taking all things into consideration. WSPR needs Linear PA at 35% efficiency. Opera works with an amplifier in class D or E at 90% efficiency. CW es QRS likewise w
Hi Terry, OK, now i'm on air in QRSS-120, TXing 2x my call. Right after finishing the last C i will run another few sequences of WSPR-8 on 136.164 kHz, with reduced power. Chris, YO/4X1RF will make a
Terry, Are you still decoding? No upload to the database, somehow.. 73, Stefan Am 23.09.2012 18:49, schrieb Terry GW0EZY: Stefan Screen grab showing decodes of FC and NM in WSPR32. I have now the c
Hi Markus Thanks for the opportunity to participate in the experiment! I finally managed to get it working with spots sent to WSPRnet with your correct frequency. Unfortunately, I see I am also decod
Am 22.09.2012 22:11, schrieb mal hamilton: WSPR needs Linear PA at 35% efficiency. My PA is extremely non-linear, at > 95% efficiency and is running WSPR-8, in this minute :-) 73, Stefan Opera works
Hi to all, only a question to the experts: is the SLOW WSPR better than the simple OPERA-32 ??? 73 de Mauro K1WVQ At 16.57 22/09/12, you wrote: Hi Markus, LF, It works! First reception of DF6NM in WS
On Sat, Sep 22, 2012 at 8:11 PM, mal hamilton wrote: > I doubt if WSPR is as good as OPERA taking all things into consideration. WSPR needs Linear PA at 35% efficiency. < Why? It's an FSK, not a mult
Stefan Just reading your email and the later correction for 10 minutes. Will need some setting up. OK I will give it a try. It is now 15:14 UTC 73 Terry From: owner- [email protected] [mai
Am 24.09.2012 15:48, schrieb Stefan Schäfer: [...] You must start the recording exactly when my transmission begins and it must be stopped after exactly 8 minutes! Sri, it must take exactly 10 minute
Hello Terry, Ah, now the older mails came through :-) Am 24.09.2012 17:51, schrieb Terry GW0EZY: Stefan My SDR was set with a “Dial” QRG = 135.164 and an audio B/W = 2kHz so your sig at 1
Hi Terry, Did you get any useful recordings? I got some from Chris YO/4X1RF. They are just running in a reprocessing loop. They are actually reproducable, i.e. i am getting decodes from the recording
