Security And Overview; Rf Radiation Information; Common Sense In Rf Radiation; Security In Rf Radiation - Retevis RT53 User Manual

Security and overview

RF radiation information

This product is intended for professional applications that meet FCC RF
radiation requirements. Users must be aware of the hazards of RF
radiation and take appropriate measures to meet the requirements of
RF radiation limit.

Common sense in RF radiation

RF refers to the electromagnetic frequency that can be radiated into
space. It is a technology widely used in the fields of communication,
medical treatment and food processing. It will produce some RF
radiation during use.

Security in RF radiation

To ensure the physical and mental health of users, experts from
science, engineering, medicine, health and industry, together with
relevant organizations, have developed radio frequency radiation
standards and guidelines, as shown below:
● United States Federal Communications Commission, Code of Federal
Regulations; Vol 47, Part 2, Subsection J.
● American National Standards Institute (ANSI) / Institute of Electrical
and Electronic Engineers (IEEE) C95. 11992 and 11999.
● Standard issued by the International committee on non-ionizing
radiation protection (ICNIRP) in 1998.
Federal communications commission regulatory
requirements
In accordance with the regulatory requirements of the federal
communications commission, terminals must comply with the
regulations of the federal communications commission on radio
frequency radiation limits, or they cannot be sold in the United States
market.The manufacturer is required to inform users of the matters
needing attention by putting labels on the products, so as to improve
users' awareness of radiation prevention.

Control and operating instructions of RF radiation

In order to maximize the performance of the product and to ensure
compliance with the radiation limits in the relevant occupational or
controlled environment of the above criteria, the sending time shall not
DIGITAL TWO WAY RADIO
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DIGITAL TWO WAY RADIO
1exceed 50% of the rated factor and shall follow the instructions below:
• RF radiation is generated only during transmission (speech) rather
than reception (listening) and standby.
• The distance between the terminal and the body during transmission
should be at least 2.5 cm.

Preparation before use

Be sure to ensure that the product is off when charging. Battery
into the charger may be charging red flashing constantly flashing, this is
the battery power is too low, the charger to protect the battery
pre-charge process, is a normal phenomenon, Generally continue for 30
seconds to turn the red light of the normal state of charge.
Please use the charging seat specified by our company to charge the
battery, the charging seat indicator shows the charging status.
1. Plug the power adapter into a power outlet;
2. Plug the other end of the power adapter into the socket on the back
of the charging cradle;
3. Insert the battery or the battery-equipped product into the charging
cradle correctly; the indicator light on the charging cradle shows the
charging status. When the indicator light is red, it indicates the start of
charging. When the indicator turns green, the charging is completed.
The specific table below.
Indicator display
Red light
Green light The charging is completed
Note:
● For best battery performance, charge for a minimum of 4 hours on
first charge.

Battery information

● The first use of the battery
Since the battery is not fully charged at the factory, please charge the
new battery before use. Under normal circumstances, the battery when
used for the first time, need to charge 4 hours, lithium-ion battery
charging using slow charge or fast charge can be performed when
Current charge status
In charging
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