Re: Coax Isolator

In article <43292e57$0$19468$ed9e5944@xxxxxxxxxxxxxxxxxxxxxx>,
Paul D.Smith <paul_d_smith@xxxxxxxxxxxxx> wrote:
> So that explains nicely what an "iso" plate is. Two questions,
> presumably there is some loss involved in such things in which case how
> much and second, when wiring a regular, off the roof aerial into the
> living room, would you use one or a non-isolating?

They're more often needed with VHF radio aerials feeding more than one
receiver as direct connection of the screen can cause an audio earth loop
and hum. Most TV sets 'isolate' the screen internally.

Basically, all they are is a couple of very small value capacitors which
have a low impedance at the required frequencies but an open circuit to DC.

--
*Growing old is inevitable, growing up is optional

Dave Plowman dave@xxxxxxxxxxxxxxx London SW
To e-mail, change noise into sound.
.

Relevant Pages

  • Re: Recession hits high rollers
    ... a car with shiny bits. ... Wimbledon Common, and spotted a Jag with the plate: ... Growing old is mandatory; growing up is optional. ...
    (uk.rec.sheds)
  • Re: Recession hits high rollers
    ... a car with shiny bits. ... and spotted a Jag with the plate: ... Growing old is mandatory; growing up is optional. ...
    (uk.rec.sheds)
  • Re: (OT) B-Day Alert!
    ... mandatory, growing up is optional." ... Am I a butterfly dreaming I'm a man, or am I a bowling ball dreaming I'm a ... plate of sashimi. ...
    (rec.arts.anime.misc)
  • Re: Yoofertoday
    ... I am at a loss to imagine what it was supposed to say. ... Growing old is mandatory; growing up is optional. ... horrid dot squeak snailything zetnet point co period uk ...
    (uk.rec.sheds)
  • Re: Whos got squirrel-trapping experience?
    ... Sorry about that - was going to try to unforget the name of the trigger ... plate - it has one, but for the life of me... ... Growing old is mandatory; growing up is optional. ...
    (uk.rec.gardening)