I recently came across a FAMPARC Mult-tap whip I had taken of my last ute and that was languishing in the shed, so decided to put it to use.
In the back garden I have a 4800x2400mm raised garden bed that has a treated pine frame of the same dimensions supported, again by treated pine posts, about 1800mm above ground level. Stretched over the frame is a galvanised chicken wire "roof". The garden bed is oriented roughly north-south on the long axis.
In the centre of the southern end I have mounted the whip (the chicken wire roof is the ground plane). The idea of mounting the antenna at one end was to bias the radiation pattern in a northerly direction.
So far, so good. Using FT8 on 15 through 40 metres it far outstrips the HVU-8 and 20 metre dipole mounted above the roof line of the house. In fact, it is surprisingly better.
My question is; if I was to move the antenna to a corner of the frame, with all else being equal, how different would the radiation pattern be? For example, if I moved the antenna to the south west corner would the radiation pattern be altered to a significantly more noticeable north-east alignment? As opposed to the surmised more north-south alignment of the current set up.