Hi John and group <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /> I think one of the features of Yahoo and Google groups is that an archive of Circuit, Photographs, Artic
Hi Group Dr Steve Myers, a director of the European Organization for Nuclear Research (CERN), which built the collider, said the machine will close at the end of a 2011. The collider is expected to r
Hi Andy and group What I am saying is that simplicity in that it's all done in the PC with software already written (no need to reinvent the wheel) no need to program PICs etc. Unless of coarse you w
Hi Jim If you mix the 1500hz tone up to 500 kc/s conventionally don't you get +/- 1500hz tone as the product. i.e. upper and lower sideband? Even if a double sideband signal was acceptable on 500 it
Hi Group What am I seeing and hearing on 4.38kc/s it is a regular pulse about 1 second long very strong slightly more that an Alpha station at this location IO91UX. These are sporadic and come in gro
Hi Group I think we have been here before but this is my contribution:- Do the whole thing with software WSPR - VAC - SDR software - Hardware Tayloe detector in reverse using a Multiplex chip. This m
Hi Chris Just a bit more for you to mull over. I dont think anyone has mentioned the MP3 approach where a 2min WSPR data stream is recorded at audio and used to modulate the TX with suitable start s
Please see below reply from Joe Taylor on this very subject September last year, This is the guy who actually wrote this application (you might say from the Horse Mouth) and he said :- On Mon, 7/9/09
After what seems like weeks of calling CQ on 500kc/s I finally worked Mal G3KEV lunch time today. Thanks Mal. I was beginning to think there was a conspiracy of silences on the band..................
Ok Graham I missed IMD sorry, not keeping my ear and eyes open. But we must try and get 500kc/s operating again its in the doldrums as far as I can see. I will be CQ ing later about 20:30 untill late
Hi again Eddie and group Thanks for the follow up Eddie. To be honest I think your solution is more in line with the way Chris XIZ is thinking (think he has gone to bed now) if I can presume to know
Hi Jim Sorry I missed the that mail I guess. Quickly looking at the G4JNT pdf file the circuit is basically the same as the Softrock TX in essences. The reason I suggested Softrock is that it is a ki
Hi all What does /L after the call sign mean? I am monitoring 70.260 mHz AM call and op frequency and am getting G8SJP/L in cw like some beacon mode. Have the RSGB stuffed the band plan on 4m again?
Thank you Jim and David These noisy beacon things just pop up all over the place now on VHF and probably HF too if I listened. I am hoping it is just an artifact of the receiver and not actually on 7
Wow thank you all, I knew you wouldn't let me down. Garry, Graham and John thanks John initially I had it as /P but it repeats every 10 / 15 mins and I verified it as /L so Garry's comment makes sens
Hi All Simply use your PC sound card as an RX with the very good SDR application from Alberto Winrad. Stuff your antenna into the mic socket. Preferably with a couple of fast recovery diodes back to
Yep nothing on 600m. It's a dead band like the parrot it's an ex band. Since the Data curse has fallen upon 600m, CW is dead. I was hoping that 600m would be a nice band to develop what little skill
