VX-450 S
ERIES
O
PERATING
M
ANUAL
3
The radio must be used with a maximum operating duty cycle not exceeding 50%, in typical Push-to-
Talk configurations.
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.
The radio is transmitting when the red LED on the top of the radio is illuminated. You can cause the
radio to transmit by pressing the P-T-T button.
SAR compliance for body-worn use was only demonstrated for the specific belt-clip (CLIP-20). Other
body-worn accessories or configurations may NOT comply with the FCC RF exposure requirements
and should be avoided.
DO NOT transmit when the radio is used in Body Worn configuration with the following accessory:
belt-clip.
It must be used ONLY for (1) there is 4 cm distance from the body during transmitting, (2) monitoring
purposes, using the speaker only and (3) for carrying purposes.
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
devices 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 hospi-
tals, health care facilities, aircraft, and blasting sites.
W
ARNING
! FCC RF E
XPOSURE
R
EQUIREMENTS
