Yes but it still does not have believability on this group as immediately
there would be concern about the accuracy of the equipments used and the
suggestion that one must try for accuracy by going into free space as well
as the position of your body when obseving measurements.
To do thing right one must have complexity to convince a guru
Art
"Hal Rosser" wrote in message
...


How about if you get a field strength meter and walk away from the
reference
antenna (like a vertical 1/4-wave) until you get a mid-range reading. -
then
do the same with the tested antenna.
compare the distances - and note that signal strength is inversly related
to
the square of the distance.
If the distance for the same reading is double for the beam - that means
it
has 4 times the effective power in that direction.
then convert to db-gain



"Art Unwin KB9MZ" wrote in message
m...
Invariably when antenna gain is mentioned
questions arise as to gain measurement and accuracy there of.
I do a lot of antenna experiments and declarations of gain never get
any where.
Ihave now purchased a 27 Mhz electric model airoplane and am now in
the process of making a new design antenna and I intend to measure an
antennas
relative gain my comparing the distance travelled by the model by
usind a standard whip antenna and then by using newly designed
antenna.
I visualise keeping a record of distance travelled of my various
experiment antennas.
Does any body see any negatives about this aproach which will always
be done under zero wind conditions? I am looking for a real world
guide to gain to escape from the gain arguments of today.
Thanks in advance
Art


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