In message , Jeff writes
On 12/02/2016 23:26, gareth wrote:
Whereas the radiating element of screwdriver antennae is tunable over
a wide frequency range, is it necessary to employ a 1/4 wave radial
for each band that it is proposed to work?


Obviously not as most screwdriver antennas are used in mobile applications!!

Do you mean to say that the 132' wire (with a brick on the end), that I
used to trail behind my car when operating on 160m, wasn't necessary?
--
Ian