Topband: Restistance of wire

[Tom W8JI]

 >  I square R loss is low as signal current is very low.

Thinking I^2 R with low current (because of being in a small signal 
application)  might mislead us. The absolute value of current would just 
tell us conductor heat, if we actually knew RF resistance (which is always 
higher than dc resistance) and current.

RF losses are best measured, because loss involves:

1.)  RF conductor resistance
2.) dielectric losses
3.) system impedances

We can use a high resistance wire if it is in a high impedance system, like 
a 600 ohm single wire Beverage.

We might have problems if it is in a low impedance system, like a 
transmission line, depending on impedances along the transmission line.

73 Tom