I wonder if it is possible to design a wspr qso mode that allows multiple stations to handle the communications, as in this sketch?

I have been watching 40 meters mostly on wspr mode. 40 can be really excellent at times. I jump to other bands once in a whole to compare. But always seem to come back to 40 meters.

Thought I would share my result on WSPR mode today. Not hearing anything and did get one spot though on my 30 meter signal.

It seems odd to me that I would only be hearing from one rather small geographic region on 40 meters WSPR. You can see on the screen shot of the WSPRnet map that I have only picked up stns from SF area of CA (several stns repeatedly over about 1.5 hours so far). I am running a mag loop antenna from indoors... in the kitchen which has a due south facing wall.

My station is running at 1 watt or less using a KX3 and a magnetic loop antenna. The apartment is below ground level 3-4 feet. I was amazed I could actually get a signal out at 1 watt or less. Have had a few spots of my signal even at .1 watt. I am not having a lot of success hearing much though. There is a fair amount of manmade RF interference here which is not a big surprise there are overhead AC lines running all over the yard where this apartment is. I sometimes wonder that I am in a sort of "rf cage" that blocks signals.

I am really enjoying WSPR mode it is about the only mode on HF I have had any success with at all to speak of. Success being defined as A) someone actually can hear my signal and B) I am also able to hear others (though not always both ways). I am using a 20% setting for transmitting. So far WSPR is about it for ham radio and me it seems at the moment. I have always been most active on digital modes, and also SSTV in the past. Those were with more power and outside antennas though.