[TowerTalk] Dumbing down?

[John Geiger]

And some think the extra class license is still too tough.


----- Original Message -----
From: "Bill Aycock" <baycock at direcway.com>
To: <Towertalk at contesting.com>
Sent: Saturday, July 23, 2005 2:48 PM
Subject: [TowerTalk] Dumbing down?


> Speaking of basics- the following paragraph is from an Extra class, on
> another reflector:
>
> >Not So!   And RF signal consists of an electric field and a magnetic
> >field.  The magnetic field can be influenced by ferous materials
> >outside of the coax and can induce current in them.  The copper or
> >aluminum shield cannot contain the magnetic field.  This is why it
> >is recommended to route coax AWAY from conduit and water pipes
> >through the house.  This is also why coiling coax is a no-no.  You
> >concentrate the magnetic field and the coil becomes a choke.
> >Especially in VHF and up.
>
> ??
> Bill
>
> Bill Aycock - W4BSG
> Woodville, Alabama
>
>
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>
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