Thanks for the summary of that hour and 15 minute presentation.
Someday when I find a decent network connection I may sit through it.
He mentions grounding and counterpoises.?
Google "EFHW counterpoise" and you'll get lots of differing opinions.
Here's mine (and I'm by no means antenna expert either):
If you have any coax from matchbox to rig, I doubt an explicit counterpoise is needed.
Not a bad idea to attach a good earth ground to the matchbox
to avoid trouble during electrical storms, and trouble from the kilovolts
of RF involved if stuffing a kilowatt into 3000 ohms.?
Likewise, an earth ground at the rig for safety is always a good idea.
For portable QRP ops with at least five feet of coax from the matchbox to rig,
I doubt an earth ground is needed for either performance or safety.
If no coax at all, put a hand on the case and your body will probably give sufficient counterpoise.
This is for an EFHW antenna system near resonance,
a significant counterpoise may be needed when off resonance.
Jerry, KE7ER
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On Tue, May 1, 2018 at 04:11 am, Kelly Jack wrote:
Summary of Steve Ellington's video presentation on efhw on youtube.
