OK Rik May be your way is simpler. I was thinking along the lines of an existing SSB rig in most but not all shacks existing free software - 3 x 2n2222 devices a mixer chip an xtal and may be a fet p
For the narrow range of frequencies needed for WSPR, a 90 degree phase shift network at audio need consist of no more than a pair of CR's; although a pair of op-amp allpass networks does a better job
This is fantastic news for the Appliance Operator. Follow a basic set up guide then let the unattended machines, all 200 of them growling away at each other at 2 minute intervals. Operator check data
This is fantastic news for the Appliance Operator. Follow a basic set up guide then let the unattended machines, all 200 of them growling away at each other at 2 minute intervals. Operator check dat
It is only the Black Boxes that send 'bananas' on WSPR. Mind you the same rigs send the same 'bananas' on all non on off modes, they are just too wide to notice, I coined that term for the bent WSPR
Roger ''' More people should use WSPR - ''' That's not as easy as it sounds , wspr needs a liner audio to rf carrier frequency conversion, ...fine if you have a conventional transverter , mf exciter
Rik, ''''so writing the appropriate software shouldn'd be to hard.'''' Everyone can write software .. but not everyone can press the keys in the right order ! Talking of 'key's' its starting to look
There is a way... If you can arrange an oscillator so that it can be pulled onto the four WSPR tone frequencies (separated by 1.46Hz ) by two logic lines. This could be as simple as two resistors, on
For some of us, fun does not mean simple... It means using the latest techniques, learning as we go along and trying new ideas It would be nice if amateur radio could stay no more than a decade behin
-- Original Message -- To: [email protected] Sent: Monday, January 04, 2010 10:35 AM Mal - GROW UP. 2010/1/4 mal hamilton <[email protected] This is fantastic news for the Appliance O
Good point Andy My method on 30m is to use a $30 Softrock T/RX and use an VAC (Virtual Audio Cable) to interconnect Joes software to my SDR application audio input and visa versa for the RX. Still li
Probably simpler to to make up a transverter - mixer with a xtal controlled oscillator and a few stages of linear amplification driving the mixer with an SSB rig. The whole thing about WSPR is the Lo
Pete, There is no need for linear amplification with WSPR, so things can be kept simple. Another way to get a 500kHz WSPR signal is to generate WSPR with the tones 14.6Hz separated at 5MHz and then d
I am afraid we have a SSB beacon on 508 kcs spreading over 3 kcs wide and S9 plus with me. Beacon SM6BHZ is causing QRM to those of us trying to listen and work the East Coast USA stations. I cannot
I am afraid we have a SSB beacon on 508 kcs spreading over 3 kcs wide and S9 plus with me. Beacon SM6BHZ is causing QRM to those of us trying to listen and work the East Coast USA stations. I cannot
