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FEA TURES
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Light weight, small size and is self-contained.
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2 sep a rate an ten nas, one for trans mit, the
other for re ceive.
EX TER NAL CON TROLS (Re fer to Fig ure 6)
Vol ume OFF/ON Con trol: This thumbwheel
con trol serves as both an off/on switch and as a
vol ume con trol.
Low Bat tery and Overmodulation
In di ca tor LED:
Low Bat tery In di ca tor: Part of the bat tery
check cir cuit. When the power switch is
placed in the "ON" po si tion the LED will
flash one time if the bat tery is good. A poor
bat tery will cause the LED to il lu mi nate con -
tin u ously and a bad or un us able bat tery will
not cause any il lu mi na tion at all.
Overmodulation In di ca tor: Uses the same
LED as the low bat tery in di ca tor. Dur ing the
talk mode, if the mi cro phone gain is too
high, the LED will il lu mi nate when talk ing.
Push-To-Talk/Lock-To-TalkSwitch: For
Model TR-300, this switch en ables the talk
func tion. For Model TR-300P, this switch en -
ables the trans mit and au dio func tion and oth -
er wise op er ates as de scribed for BTR-300.
Talk LED In di ca tor: (La beled "talk") Will be
il lu mi nated when ever the talk func tion on the
TR-300 or trans mit func tion on the TR-300P is
en abled.
CON TROLS AND CON NEC TIONS
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Push-to-Talk with Lock-to-Talk fea ture
switch for the TR-300 and Push-to-Transmit
with Lock-to-Transmit fea ture for the
TR-300P.
Head set Jack: A four pin XLR con nec tor for
In put/Out put. The head set jack will ac cept
many dif fer ent Telex model head sets. Com pat i -
ble with other in ter com head sets with four pin
XLR con nec tors that are wired as shown in
Fig ure 5.
Fig ure 5
Head set XLR Con nec tor Wiring
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