LF: Re: active antennas at LF.

["Andre' Kesteloot" <andre.kesteloot@ieee.org>]

Talbot Andrew wrote:

> Incidently, returning to an earlier topic, the current Naval standard HF
> receiving antenna on board ships is an active whip, made from a 2m
> length of 50mm diameter Al pole.   The amp is made from three E88CC
> valves in parallel, operating in a cascode / common collector circuit.
Indeed, in case of EMP, a valve preamplifier would have better chances
of
surviving. 
Andre' N4ICK