I have just got my hands on a Clansman VRC 321 and the 25w Antenna Tuner (TURF) to play with. Unfortunately I do not have any manuals for either although most things seem very straightforward. I have figured out how to set the units up and how to connect a coax fed dipole but I am still trying to puzzle out the connections for an end-fed antenna and the counter-poise. There are two knurled knobs on the rear of the TURF, which seem to be for connecting the antenna and the counter-poise but there is nothing to show which connects to which. Looking from the front of the set, i.e from underneath the connections, they are at the top left and bottom right of the set. I would guess that the top connection is for the antenna and the bottom one is for the counterpoise but is this correct? Any advice would be much appreciated.