W1MK after TOP BAND

Tonight before midnight I turned on tcvr. On 160 m band I heard a station from the USA, which gave CQ DX. After a short call, I called. Rob, W1MK uses powerful antenna systems. I searched the internet for more detailed information about its antennas:

http://www.4-square.co.uk/na/w1mk/index.html
www.kkn.net/dayton2005/ON4UN-Dayton-2005.pdf

I use tcvr KENWOOD TS-870S and antenna grounded vertical loop length about 86m, which I operate in all bands. The antenna is mounted about 12m above the ground, which is not enough for DX connections on the 160m band.

you 73! Fairy, OM3CAQ