Topband: Caged Inv-L - Pros and Cons ?

[Joe Subich, W4TV]

Modeling indicates about a 50% improvement in bandwidth with slight
changes in the length of the horizontal wire and series capacitor in
a 3/8 wave inverted L (60' up, 120 feet out) when going from a #12
vertical wire to a 2.5" diameter vertical section (about what one
would get with the Jetstream cage insulators for R and L).

In practice the increase in bandwidth will probably not be as great
because the Q of most real antennas is already reduced by ground
losses.

73,

    ... Joe, W4TV


> ----- Original Message -----
> From: topband-bounces at contesting.com<topband-bounces at contesting.com>
> To: topband at contesting.com<topband at contesting.com>
> Sent: Tue Jan 24 21:29:57 2012 Subject: Topband: Caged Inv-L - Pros
> and Cons ?
>
> I am considering modifying my Inverted L such that the vertical part
 > (~ 70 ft) is a cage of say 4 wires , purely for bandwidth. Besides BW
 > any Pro's and or Con's to this idea ? my current configuration allows
 > me to use from about 1800-1860
>
> Dan N8DCJ
>