Dear Marco, Roelof, LF Group, I suppose what you have to consider is what will happen to the JFET when a high EMF is induced on the whip due to the nearby TX antenna. Certainly, one could expect more
Dear James, Thank you very much indeed for your thorough analysis. The estimated 3 pF antenna capacitance is about right and is the same as for a 30 cm long whip. A 30 cm long whip and a 30 x 40 mm P