Re: NEC-LIST: Coil-loading.

Doug,

A Q of 300 can be achieved with close spacing of the windings on a
dielectric rod. A Q of nearly 1000 can be achieved with a properly
designed air-core solenoid inductor.

   Dave Cuthbert
   Micron Technology

-----Original Message-----
From: nec-list-bounces+drcuthbert=micron.com_at_robomod.net
[mailto:nec-list-bounces+drcuthbert=micron.com_at_robomod.net] On Behalf Of
D. B. Miron
Sent: Monday, February 07, 2005 8:35 AM
To: nec-list_at_robomod.net
Subject: Re: NEC-LIST: Coil-loading.

Good day,

Jim is right about the original question. I have a 1943
copy of Terman and I don't see anything about coil loading.
He has a very brief paragraph on automobile antennas in
which he mentions the whip, and plate antennas.

A related question is about coil Q. I read somewhere that
the maximum practical Q or an air-core solenoid is about
300. Does anyone disagree, or have different experience?
Thanks.

Doug Miron

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