Make that BORED, not BOARD... Sigh... Typo and a spell checker...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 12/31/22 07:03, Dave (NK7Z) wrote:
Ed,
I was board one day a few years ago, and took out with my mobile rig,
and its rear mounted vertical... I plotted signal strength points all
around a known RFI source to see if an isoline map might help locate a
hard to find source... It actually did indicate the area for the source
quite accurately... One of these days, I will actually use that process
in a locate...
I have this dream of a drone, a computer, more programming experience,
and money than I currently have... Wouldn't it be cool to just let a
drone off, have it grid up an area, take signal strength readings at a
set altitude, then have a computer take the results and create either a
heat map, or an isoline map...
Anyway, someday I may tackle that project but not soon...
73, and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Volunteer Examiner
ARRL Technical Specialist, RFI
ARRL Asst. Director, NW Division, Technical Resources
On 12/31/22 06:40, Hare, Ed, W1RFI wrote:
If you are trying to locate a noise source, if a directional antenna
is available at the ham's QTH, that is the place to start. It will
give a general direction for that walk-around.
________________________________
From: RFI <rfi-bounces+w1rfi=arrl.org@contesting.com> on behalf of
Pete Smith N4ZR <pete.n4zr@gmail.com>
Sent: Saturday, December 31, 2022 8:03 AM
To: rfi@contesting.com <rfi@contesting.com>
Subject: Re: [RFI] Yagis and DFing
Or use a Moxon which has a deep null off the center of the back
73, Pete N4ZR
On 12/30/2022 7:19 PM, David Eckhardt wrote:
Use the sharp *nulls off the sides* of the Yagi. They are far
sharper than
the "gainy" front lobe.
Dave - WØLEV
On Sat, Dec 31, 2022 at 12:01 AM Jim Brown<jim@audiosystemsgroup.com>
wrote:
Remember that Yagis only have their intended directivity in the
frequency range for which they are built.
73, Jim K9YC
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