Operating Manual

EVX-539 OpErating Manual
3
WarnIng! Fcc rF ExposurE rEquIrEmEnts

When transmitting, hold the radio in a vertical position with its microphone 2 inches (5 cm) away from
your mouth and keep the antenna at least 2 inches (5 cm) away from your head and body.

The radio must be used with a maximum operating duty cycle not exceeding 50%, in typical Push-to-
Talk congurations.
DO NOT transmit for more than 50% of total radio use time (50% duty cycle). Transmitting more than
50% of the time can cause FCC RF exposure compliance requirements to be exceeded. To keep the Body
Worn conguration with the Vertex Standard CLIP-20 belt-clip, reduce the maximum operating duty
cycle still more.
The radio is transmitting when the red LED on the top of the radio is illuminated. You can cause the ra-
dio to transmit by pressing the P-T-T button.

SAR compliance for body-worn use was only demonstrated for the specic belt-clip (CLIP-20). Other
body-worn accessories or congurations may NOT comply with the FCC RF exposure requirements and
should be avoided.

When operate the radio with the Vertex Standard CLIP-20 belt-clip, make the transmission time as short
as possible, to keep the Body Worn conguration.

Always use Vertex Standard authorized accessories.

The information listed above provides the user with the information needed to make him or her aware of
RF exposure, and what to do to assure that this radio operates with the FCC RF exposure limits of this
radio.

Electromagnetic Interference/Compatibility
During transmissions, this radio generates RF energy that can possibly cause interference with other de-
vices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so.
Do not operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals,
health care facilities, aircraft, and blasting sites.
FCC ID: AXI11154620
IC: 10239A-11154620