• User awareness instructions should accompany device when transferred to other users.
• Do not use this device if the operational requirements described herein are not met.
Instructions:
• Transmit no more than the rated duty factor of 50% of the time. To transmit (talk or send data), assert the
PTT input pin. To receive calls, un-assert the PTT input. Transmitting 50% of the time, or less, is
important because this radio generates measurable RF energy exposure only when transmitting (in terms of
measuring for standards compliance).
• Transmit only when people are at least the recommended minimum lateral distance away, as shown in
Table 1, from a properly installed according to installation instructions, externally-mounted antenna.
NOTE - Table 1 lists the recommended minimum lateral distance for bystanders in an uncontrolled
environment from transmitting types of antennas (i.e., monopoles over a ground plane, or dipoles) at
several different ranges of rated radio power for mobile radios installed on a vehicle.
Table 1. Rated Power and Recommended Lateral Distance for quarter-wave ground plane antenna:
Rated Power of DTX
Recommended Minimum Lateral
2-way Radio
Distance from Transmitting Antenna
Less than 10 watts
6.4 inches (16.2 cm)
10 watts
7.2 inches (18.2 cm)
Antennas
• Install antennas taking into account the recommended minimum lateral distances in Table 1. These
antenna installation guidelines are limited to antennas with appropriate ground planes. The antenna
installation should additionally be in accordance with:
a.) The requirements of the antenna manufacturer/supplier.
b.) Instructions in this manual including minimum antenna cable lengths.
c.) Antennas other than those shown in Table 1 must be tested with the DTX module for RF
exposure compliance in the environment in which it is to be used per the FCC’s OET Bulletin 65,
Edition 97-01 or Industry Canada RSS-102.
• Use only a VHF quarterwave antenna or equivalent antenna or other antennas as specified in Table 1.
Unauthorized antennas, modifications, or attachments could damage the radio and may violate FCC
regulations.
Approved Accessories
• This radio has been tested and meets the FCC RF exposure guidelines when used with the Ritron
accessories supplied or designated for this product. Use of other accessories may not ensure compliance
with the FCC’s RF exposure guidelines, and may violate FCC regulations.
• For a list of Ritron approved accessories see this user manual, or visit the following website which lists
approved accessories: www.ritron,com
Contact Information:
For additional information on exposure requirements or other information, contact Ritron at (317) 846-
1201 or at www.ritron.com.
