Well Larry it's not an "experimental amateur" station but by the callsign an experimental license. US experimental callsigns resemble Amateur except the suffix begins with X while no Amateur callsign does. While Bob's callsign is W2ZM he operates as the sixth station under the WE2XGR license. Nice haul from the Finger Lakes district of New York but you really don't need a whole lot of power to blanket the continent on that frequency, especially with a clear channel CW beacon.
Something caught my attention, WD2XSH/23 - K2ORS but no frequency is given. Warren is in Wayland MA and would be a nice catch. His Amateur vanity callsign is in memorial of Jean Shepherd, the inimitable storyteller on WOR 710 NY and his Christmas Story movie is just as famous. BTW, don't try licking any poles even in Richmond this time of year or you'll end up like Ralphie. (;->)
Post edit;
Somebody is confused, the above information was from the log but is incorrect or out of date. The WE2XGR license effective 11-05-07 was issued to Warren and this link on the site indicates he operates as WE2XGR/1.
http://www.500kc.com/other_us_stations.htm Further note that while the license allows a maximum of 200W ERP that's not any indication of what the actual power level is. It is worth mentioning that with the exception of a quarter wave vertical which would be a VERY tall tower antenna efficiency is very low. I wonder if these guys are actually doing any better than QRP which makes for an interesting bit of listening.