Operating instructions

Antenna Connection

The beltpack comes with two detachable, screw type, ¼ wave

antennas. To attach the two antennas, screw into the recepta

cles at the bottom of the beltpack. The color dot on the screw

end of the antenna must match the color dot on antenna recep

tacle. The longest antenna is the receiver antenna. It screws

into the left receptacle if the beltpack is laying flat with the

battery compartment face up and the antenna receptacles fac

ing you. The other antenna is the transmit antenna. New an

tennas can be ordered if desired, see the “Accessories” section.

Transmit mode

The rear panel located transmit switch has the following two

modes:

Push-to-Talk (PT TALK) – Recommended position –

The transmitter is always on. No audio is sent unless the

talk switch is pressed.

Push-to-Transmit (PT TX) – The transmitter and audio

paths are off except when the talk switch is pressed.

Headset Connection

Insert the headset plug into the XLR connector. See the head

set pinout in the “WTR-670 beltpack controls and connec

tions” section if this is not a Clear-Com

headset. A dynamic

or electret headset microphone is automatically detected by

the beltpack and a bias voltage supplied if needed.

4-8

SET

MICROPHONE

GAIN CONTROL

TRANSMIT

SWITCH

HEADSET

CONNECTION

RECEIVE

ANTENNA

TRANSMIT

ANTENNA

BATTERY

RELEASE

LATCH

Figure 19

WTR-670 Rear Panel