Retevis RT639 Mode D'emploi page 10

population/uncontrolled Use".
RF Exposure Compliance and Control Guidelines and
Operating Instructions
To control your exposure and ensure compliance with the
occupational/controlled environment exposure limits,
always adhere to the following procedures.
Guidelines:
•User awareness instructions should accompany the device
when transferred to other users.
•Do not use this device if the operational requirements
described herein are not met.
Operating Instructions:
•Transmit no more than the rated duty factor of 50% of the
time. To Transmit (Talk), push the Push to Talk (PTT)
button. To receive calls (listen), release the PTT button.
Transmitting 50% of the time, or less, is important because
the radio generates measurable RF energy exposure only
when transmitting in terms of measuring for standards
compliance.
•Transmit only when people outside the vehicle are at least
the recommended minimum lateral distance away from a
properly installed according to installation instructions,
externally mounted antenna.
•When operating in front of the face, worn on the body,
always place the radio in a Retevis approved clip, holder,
holster, case, or body harness for this product. Using
approved body-worn accessories is important because the
use of Non-Retevis approved accessories may result in
exposure levels, which exceed the IEEE/ICNIRP RF
exposure limits.
Hand-held Mode
• Hold the radio in a vertical position with the microphone
(and other parts of the radio including the antenna) at least
2.5 cm (one inch) away from the nose or lips.The antenna
should be kept away from the eyes. Keeping the radio at a
proper distance is important as RF exposure decreases
with increasing distance from the antenna.
Phone Mode
•When placing or receiving a phone call, hold your radio
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