[TenTec] OCF antennas evolution

[Steve Hunt]

Because:

a) It's a voltage balun and therefore will drive *unequal* currents into 
anything except a perfectly balanced load. A voltage balun has *zero* 
common-mode impedance.

b) Its a 4:1 balun; so, used with a doublet/ladderline combination, it 
will typically cause higher tuner losses for a large range of feeder 
lengths than would a 4:1. See:
http://www.karinya.net/g3txq/tuner_balun/

I use a good 1:1 current balun external to my 238 tuner with my 
doublet/ladderline system.

Steve G3TXQ



On 11/07/2013 21:20, Mike Bryce wrote:
> Why not use the internal balun in the 238?
>
> Sent from my iPhone
>
> On Jul 11, 2013, at 3:00 PM, "Rick - DJ0IP / NJ0IP" <Rick at DJ0IP.de> wrote:
>