Not forgetting Zeppelins used Zeppelin
aerials as well .. but where they called that then ?
Sent: Tuesday, January 03, 2012 10:43 PM
Subject: Re: LF: Antennas
Merchant ships used inv L antennas slung between two masts
and in some cases additional long whips for MF/HF. Aircraft also used inv L and
long wire antennas strung between the cockpit and the top of the tail fin
for MF/HF plus a trailing antenna that could be wound in/out as
required.
No pocket micro or ferrite sticks used. Some early
aircraft also had a small loop antenna for DF purposes.
I know why fixed services used large wire arrays,
for directivity and gain and switchable in direction in some
cases but not so sure others did.
A tuned loop on a Battleship could be tricky with all the
metal about.
mal/g3kev
----- Original Message -----
Sent: Tuesday, January 03, 2012 10:15
PM
Subject: Re: LF: Antennas
Mal,
>Why do commercial receiving stations use large
antenna farms out in the countryside ??
The reason is to get as much *directivity* gain as
possible.
BTW british military vessels since decades used
to use tuned loops with a preamp
for VFL/LW/MW operation.
And they operated also in CW in those
days...
73
Clemens
DL4RAJ
----- Original Message -----
Sent: Tuesday, January 03, 2012 3:03
PM
Subject: Re: LF: Antennas
4120 - Ausgabedatum: 03.01.2012
