In article ,
says...
http://www.aftenposten.no/english/lo...ticleID=609108

I've always assumed that the performance of ferrite-rod antennas in
transmitting applications was limited by core saturation. Wonder if
there's anything to this "invention"?

-- jm

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not much info there, but i've read articles about russian experiments on
small antennae and something about a capacitive antenna.

somewhere in the jumble, i came across a theory/claim supposedly
originated by Nikolai Tesla. the theory being that applying a large
voltage - low freq. ac, dc... i don't remember - to a short antenna
would set up an electrically large antenna by virtue of the electric
field.

say you applied 1000V to a 1m whip. that's 1000V/m. or it's 1V/m over a
length of 1000m effective antenna length. that's the theory... key word
"theory".

brs,
mike

"John Miles" wrote
http://www.aftenposten.no/english/lo...ticleID=609108

I've always assumed that the performance of ferrite-rod antennas in
transmitting applications was limited by core saturation. Wonder if
there's anything to this "invention"?


I especically like the statement:
"Our tiny antenna can be placed in the car or cast in metal, and is at least
as good"

Great, an antenna working even if cast in metal....

Arie.

I especically like the statement:
"Our tiny antenna can be placed in the car or cast in metal, and is at least
as good"

Great, an antenna working even if cast in metal....

Time will tell.

It's likely we'll not find out the exact details (if it lives upto ad-bumk that
is) but what else can it but a coil wound round a lump of ferrite ?

I don;t personally see why a ferrite can be used for transmitting - but then I'd
need filling in as to what the technical reasons are for this supposed reasoning
is.

Clive

read 'can' as 'can't'

sorry.

Halleluja,
all our antenna and tower problems are solved.
Where is it? I will take dozen.

BUm

On 17 Sep 2003 20:22:03 GMT, oSaddam (Yuri Blanarovich)
wrote:

Halleluja,
all our antenna and tower problems are solved.
Where is it? I will take dozen.

BUm

Didn't you already purchase the wonderful Joystick?


--
remove ,xnd to reply (Spam precaution!)

On 17 Sep 2003 20:22:03 GMT, oSaddam (Yuri Blanarovich)
wrote:

Halleluja,
all our antenna and tower problems are solved.
Where is it? I will take dozen.

BUm

Didn't you already purchase the wonderful Joystick?


--
remove ,xnd to reply (Spam precaution!)

Halleluja,
all our antenna and tower problems are solved.
Where is it? I will take dozen.

BUm

read 'can' as 'can't'

sorry.

I especically like the statement:
"Our tiny antenna can be placed in the car or cast in metal, and is at least
as good"

Great, an antenna working even if cast in metal....

Time will tell.

It's likely we'll not find out the exact details (if it lives upto ad-bumk that
is) but what else can it but a coil wound round a lump of ferrite ?

I don;t personally see why a ferrite can be used for transmitting - but then I'd
need filling in as to what the technical reasons are for this supposed reasoning
is.

Clive