Topband: : how to check a BOG
k1fz at myfairpoint.net
Sun Oct 23 15:01:52 EDT 2016
I purchased a MFJ 5014 noise generator for $ 39.95 (it took awhile to
get here, think they build to order.)
At Mid-day time to reduce interference, set it way out, with about 20
feet of wire sitting on the ground in the direction of the BOG null.
Tuned frequencies on the receiver to find minimum signal, trimmed the
BOG wire to bring the null into 160 meters.
"Worked like a charm"
On Sun, 23 Oct 2016 13:57:41 -0400, Art Snapper wrote:
I took a hint from Luis HC1PF. A small 1.8+/- clock oscillator
and a wire
attached to a pole is what he used.
I found said oscillator on eBay.
It worked, but I am not sure the near field results should be taken for
p.s. Still trying to figure out the computer problem that plagued me during
the SP, and is gone now!
On Sun, Oct 23, 2016 at 12:53 PM, Bob K6UJ wrote:
> How do you plot the directivity of your BOG ?
> I am toying with the idea of either transmitting from my car HF rig
> (milliwatt sig)
> and plotting the pattern from diff directions or is it possible to
> transmit with the BOG with
> a real low milliwatt sig ? I was thinking then I could drive around with
> my HF rig in the car
> in about a half mile radius and see if I could plot the pattern. This
> might not be doable,
> but thought I would throw it out there.
> How do you test your BOG ?
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