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Find a lost person or a lost dog with walk-and-talk

This idea is about: find a lost walk-and-talk part,
or: How to locate a lost part of 2-way radios;
This sound interesting, because we can finde at the
same time a lost person or a lost dog who is carring
that part easy to locate. Knowing that at our time,
cellular phone is a big help, still it can not help a lost
dog or a lost person disoriented or fainted.
The 2-way radio, or, walk-and-talk must function
the way that the nanufacture indicate. To work in
the way we are suggesting it just need a very small
and simple adjustment that we will clearly explain
in this page.
The best way to explain how it works, is this example:
if a 10 mile range radio respond to a call, means that
it is located inside of 10 miles radius, if not respond,
mean that it is located out of 10 miles radius. Untill it
continue to respond we are sure that it is inside a 10
miles radius, but we don’t know how far. Just at the
point that it stop to respond it is 10 miles away, but
still we don’t know in what diretion. Not worry about
this confusing explanation, the graphic demonstration
will be comprehensible.

A lost dog or a lost person fainted can not activate
a radio. We can make a little adjustement to our
radio, to make it activate automatically everytime
it receive our call.
Put the radio in voice operate feature that require
a haed set. Fig 1 show how usually it works:
Make a noise or speak in the microphone and you
are in contact with the other radio; this stay on untill
you speak. When yuo rest, you ear the other side in
the speaker.
Fig 2 has our little adjustment that consists on
bending the microphone very close to the speaker.
So, when the other radio call, a noise is produced
in the speaker that go in the microphone which
activate the radio that send back a signal.

picture-10.jpg

picture-11.jpg

when you know how to use a 2-way radios, you just
bend the microphone until touching the speaker, like
Fig 2; Now, every-time you call this post it reply back
on echo if is within the distance range of your radios.
It not respond back if is out of the distance range.

Now a practical demonstration:
The picture below show a big area where we start chec-
king.We enter the road at point (X), no signal, but we
continue. At once we have a signal, at that point we
mark on our map a dot (A) and we continue on the road
until the signal go lost, at that point we mark a dot (B)
on our map.

 

picture-8.jpg

Now on the picture below we mark a circle on dot (A)
and one on dot (B) with a radius corresponding at the
distance range of the radio. The 2 red arrows indicate
a red point that is barely out of both circles, there is
located our lost radio part.

 

picture-9.jpg

This page will keep on for everybody to use and
make improvement.

Remind:
Because the distance range of 2-way radio, refer
at the optimal condition of the environment where
it must operate, is suggested to verify and make
adjustment in the location where you intend operate.

march.doc

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