[Elecraft] OT: pwr rating of RG6, etc
Mark Bayern
plcmark at gmail.com
Tue Nov 13 10:49:30 EST 2007
A couple of points:
1 -- While the feedline might have a 1.5:1 swr, a tuner at the rig can
allow the rig to see it as 1.0:1.
2 -- If the feedpoint of the antenna has an impedance close to 75
ohms, RG-6 would be the _correct_ feedline to use. (Correct meaning
best match to the antenna and lowest voltage peaks on the feedline
while transmitting.)
3 -- Just because an Icom box does something does not make it right.
4 -- If you need a pi-network, BUILD ONE!
There is nothing sacred about 50ohms. After all the impedance of free
space is about 377ohms. 50ohms is just the impedance that the K3 wants
to see at its feedpoint for best power transfer.
Mark
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