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[darbysan]

Just started using some of the Stick On
switches.  The ones I received have a very
short range-  less than 20 feet.  Range
varies from switch to switch.  Are the
batteries bad?  Would replacing them extend
the range considerably, or do these
switches have a short range as a function
of design.  

[Charles Sullivan]

The internal antenna is a little too short
for the operating frequency.  One scheme
which is said to increase the range is to cut
a length of coat hanger wire 18 inches long
and mount it on the wall close to the switch
- either horizontally or vertically.  The
concept is that of a very simplified YAGI
antenna.

Another consideration is the construction of
the wall.  I have one wall which is plaster
over metal lath and the range of an RF switch
on that wall is close to zero.

[bill johnston]

I’ve discovered that my physical body as
opposed to the walls will significantly
interfere with the signal if I position
myself between the switch and the
receiver.  It took me a while to figure
this out for my 4’ son was able to get the
switch to work 100% of the time and when I
stood in front of it it failed 100% of the
time.  Once I stepped aside to allow the
signal to see the receiver via a direct
line of sight it works.

[bill johnston]

I’ve discovered that my physical body as
opposed to the walls will significantly
interfere with the signal if I position
myself between the switch and the
receiver.  It took me a while to figure
this out for my 4’ son was able to get the
switch to work 100% of the time and when I
stood in front of it it failed 100% of the
time.  Once I stepped aside to allow the
signal to see the receiver via a direct
line of sight it works.