In the interest of propagating knowledge, let's open discussion about tropospheric scatter. I have doubts about its usability on ham bands. But I am a reasonable man and open to new data. Unfortunately, I haven't found much on the net about troposcatter and what little I have found has been of poor quality. What I know: Wavefronts strike airborne obstructions and disperse portions of RF into different directions. The amount of dispersed power is weak and incoherent (pieces of wavefront splattering different directions). Path loss calculators with ham gear predict > -200db of attenuation. This appears to be slightly better than EME path loss, so I'm warming up to the possibility. Gub'ment used tropospheric scatter (ts) with gigantic antennas and lots of power. One might (falsely) assume (guilty party right here) that all this equipment and expense is required for a ts circuit to work. But when we look at the bandwidths used by gub'ment and hams, we should easily why gub'ment needs so much power. Hams use very very small amounts of bandwidth. SNR is more manageable. Antenna polarity appears to play an import role in ts circuits. Every ts system I've found employs diversity: horizontal and vertical polarization. Ever the skeptic, I'm curious to know how anyone can know they are using ts. Are there traits to listen for? How does one find ts signals? Are antennas swept in both azimuth and elevation? I'd surely like to hear from someone who intentionally built a station to take advantage of ts. I think we'd all be interested to know what decisions were made in the design of the station, and would equipment is considered essential for a newcomer interested in ts.