User's Manual

DP770 Instruction Manual 3/27
To realize the best performance of the battery, change the battery once a year.
This device complies with part 15 of the FCC Rules. Operation is subject to the
following two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
Any Changes or modifications not expressly approved by the party responsible for
compliance could void the user’s authority to operate the equipment.
Your radio generates RF electromagnetic energy during transmit mode. This radio is designed for
and classified as "Occupational Use Only" meaning it must be used only during the course of
employment by individuals aware of the hazards, and the ways to minimize such hazards. This
radio is NOT intended for use by the "General Population"in an uncontrolled environment.
This radio has been tested and complies with the FCC RF exposure limits for "ccupational Use
Only" In addition, your Kirisun Communications Co.,Ltd radio complies with the following
Standards and Guidelines with regard to RF energy and electromagnetic energy levels and
evaluation of such levels for exposure to humans:
1. FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC
Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields.
2. American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with
Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz.
3. American National Standards Institute (C95.3-1992), IEEE Recommended Practice for the
Measurement of Potentially Hazardous Electromagnetic Fields- RF and Microwave.
4. The following accessories are authorized for use with this product. Use of accessories other than
those (listed in the instruction) specified may result in RF exposure levels exceed the FCC
requirements for wireless RF exposure.
To ensure that your expose to RF electromagnetic energy is within the FCC allowable limits for
occupational use, always adhere to the following guidelines:
1. DO NOT operate the radio without a proper antenna attached, as this may damaged the radio
and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna
supplied with this radio by the manufacturer or antenna specifically authorized by the
manufacturer for use with this radio.
2. DO NOT transmits 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 “TX indicator” lights red. You can cause the radio to transmit
by pressing the “PTT” switch.
3. ALWAYS keep the antenna at least 2.5 cm (1 inch) away from the body when transmitting and
only use the Kirisun belt-clip which is listed in instructions when attaching the radio to your belt,
etc., to ensure FCC RF exposure compliance requirements are not exceeded. To provide the
recipients of your transmission the best sound quality, hold the antenna at least 5 cm (2 inches)
from your mouth, and slightly off to one side. The information listed above provides the user with