[Lowfer] Observations
Bill Ashlock
[email protected]
Sat, 30 Nov 2002 22:45:45 -0500
Mike
>At the other bearings, the signal was barely perceptible even 1/2
>mile away. =20
Are you certain that you were clear of trees by say 100ft where you made =
your measurements and with the engine off? You should be able to hear th=
at loop out to 100 miles in the direction of the loop plane with the type=
of soil you have there. What is your E-probe setup like. If you weren't =
putting out a good signal Mitch would not be able to see TMO all day long=
. =20
I'm not exactly buying the shadow idea. That would be the effect at much =
higher frequencies, but the metal in the garage would likely mess up the =
pattern somewhat by absorbing energy and/or producing a field of its own =
that could distort the figure 8 pattern. Remember that the size of the wa=
ve you are producing is over 1 mile long. =20
>At its closest, the antenna is about 20 feet away from the garage and 75
>feet from the Inn. The garage is (mostly) sheet metal and the Inn is 183=
2
>timbers but it was recently encapsulated in foil-backed insulated board
>prior to being vinyl sided.
75 ft should be far enough away as not to be a serious problem for the lo=
op. The magnetic field falls off to the cube of the distance.
>Here is an ANSI graphic of the layout. I hope it shows up OK. G=3Dgarage=
,
>H=3DInn, B=3Dwooden barn, \=3Dantenna
GGGGGGGGG \
GGGGGGGGG \ ^
GGGGGGGGG \ N
\
=20
HHHHHHHHHHHHHHHHHHHHHHHHH
HHHHHHHHHHHHHHHHHHHHHHHHH BBBBBBBBBB
HHHHHHHHHHHHHHHHHHHHHHHHH BBBBBBBBBB
HHHHHHHHHHHHHHHHHHHHHHHHH BBBBBBBBBB
Street Street Street Street Street Street Street Street Street Street Str=
eet
Great map! You said the loop was pointing close to E/W about 2 weeks ago.=
This map has the loop pointing close to N/S!
Bill
PS: "Wax on - wax off" was from the movie 'The Karate Kid'. The waxing wa=
s an exercise imposed on the kid by the Master.Get more from the Web. FR=
EE MSN Explorer download : http://explorer.msn.com
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