I have an inverted L and using a hairpin coil to match in on 160M.
One coil is 6 inches OD the other is 2 inches OD. I have been thinking
about making another hairpin with wire wrapped around a toroid donut,
I have noticed with the 6 inch coil I have a higher noise level on 160M and
hear BCI pre
Anyone on the reflector had experience burying unshielded twisted pair wires at
HF frequencies?.
How much loss? Estimated ? Measured?
When burying, was there a before and after common mode increase ?
Notes
At audio frequencies the phone companies used to run many twisted pair in lead
s
Jack WS3N wrote:
Then it would seem that what you call the surface wave must be the
remaining part of the complete solution, and so it must decay exponentially
in the vertical direction. ... a decaying solution can't be projected in a
straight line and assumed to reach the ionosphere.
The rad
