[TriEmbed] more detail to the "attaching to the copper tubes" Re: OT: RF questions

[Pete Soper]

One more detail that might be of general interest. The place where you 
attach the xmit output and ground to the two dipole legs determines the 
feedpoint impedance. If you attach to the closest practical two 
positions near the center the impedance will be at or near what the 
model predicted last night. So don't attach further out from the center 
thinking it's arbitrary. It gradually increases such that at the 
opposite ends it's several thousand ohms (i.e. phenomenally high SWR: 
all heat, no RF out).

-Pete