[TenTec] Problem on 160 meters, Whats up?

[Jim Brown]

d.e.warnick at comcast.net wrote:
> The problem of heating an unmatched balun is one of the reasons that I chose the Palstar AT5K. 
Heating in a common mode choke (current balun) has NOTHING to do with 
SWR, it's all about antenna BALANCE, the common mode voltage across the 
choke, and the choking impedance. If the choking impedance is high 
enough, there's very little heating because there's very little current, 
and power is I squared R!

Heating in a voltage balun (transformer) has little to do with SWR 
either. All the TX power must go through the core. If the core is lossy 
it gets hot. Period.

73,

Jim Brown K9YC