[Milsurplus] Re: DFing receiver re-radiation in WW 2?

[Radioman390 at cs.com]

In a message dated 6/29/04 7:27:53 AM Eastern Daylight Time, whitaker at pa.net 
writes: 
> For you technical types,
> each vertical antenna fed directly, (untuned), to
> the grids of a 7N7 which whose cathode fed the
> coax into the shack.  Never saw that again.

Impedance matching, plain and simple, and the basic principle of an "active" 
antenna