The
RANGE SWITCH is a 3 position switch used to attenuate the signal
going from the antenna to the receiver so the receiver is not overloaded
by a
strong signal. In LONG there is no attenuation, therefore the receiver
is
listening with full sensitivity. In the MED (or medium) position,
approximately 30db of attenuation is inserted between the antenna and
receiver. In CLOSE another 30db of attenuation is inserted for a total
of
60db. To DF your bird,always start in the LONG position to make sure
it
can be heard and you are satisfied with the pitch of the received tone
(as set
with the TUNE control). If you are able to hear your transmitter,change
switch positions to MED and see if it can still be heard. If it can
not,go
back to LONG,reduce volume so the meter indicates half scale and turn
around in order to find the strongest signal strength. This will show
what
direction your bird is. Walk or drive in that direction until you can
move
the RANGE switch to the MED position and still hear the signal. Continue
to walk or drive in the direction of strongest signal strength until
you can
move the RANGE switch to the CLOSE position. When you can hear your
bird in the CLOSE position,you are usually with sight of it.