The signal strengths are very low. The channels have adjacent channel and co-channel interference. Tropo means tropospheric ducting with WTOK. The upper atmospheric layers must be just right to funnel the signal to your location. And you will need this antenna array.
http://www.simplicitytool.com/Old%20...quad_array.htm * . . Reception will be unreliable at best. The price will climb to $2,000.00 or more , are you still interested??