7
Multiple Radio Operation
1. Plug the connector on the NoizeBarrier TAC headset
cable into the top of the Multi-Port Hub PTT.
2. Attach radio cables to the
MAIN
or
AUX
connectors
on the bottom of the hub.
a. To use both channels on the dual channel radio
attach the cable to the
MAIN
jack on the Multi-
Port Hub
b. To use three single channel radios, split cables
are used to attach two radios to the
MAIN
jack
on the hub. A third radio will attach to the
AUX
connector on the hub. Cables are specific to the
radio model in use.
3. Attach the cables to the connectors on the radios.
4. Turn on the radios.
5. Listening volume for radio communications are
controlled by the volume controls on the radios.
6. Situational awareness volume is controlled by the
+ and -
buttons on the left ear cup or the
+ and -
buttons on the hub.
7. PTT feature is activated when the PTT button marked
1
on the side of the hub is pressed.
a. Dual-PTT radios will use PTT
1
and 2. Receive
audio will be heard separately in the left and right
ears (if radio is capable).
b. Radios or accessories connected to the
AUX
jack
will use
PTT 3
when feature is enabled.
