Sailor 624228 VHF DSC, Руководство по установке, Страница: 7 / 104

98-132904-C v
regarding RF energy and electromagnetic energy levels including the recommended levels for
human exposure:
• FCC OET Bulletin 65 Supplement C, evaluating compliance with FCC guidelines for human
exposure to radio frequency electromagnetic fields.
• American National Standards Institute (C95.1) IEEE standard for safety levels with respect to
human exposure to radio frequency electromagnetic fields, 3 kHz to 300 GHz
• American National Standards Institute (C95.3) IEEE recommended practice for the measurement
of potentially hazardous electromagnetic fields - RF and microwaves.
Below the RF exposure hazards and instructions in safe operation of the radio within the FCC RF
exposure limits established for it are described.
Warning
Your Thrane & Thrane radio set generates electromagnetic RF (radio frequency) energy when it is
transmitting. To ensure that you and those around you are not exposed to excessive amounts of that
energy (beyond FCC allowable limits for occupational use) and thus to avoid health hazards from
excessive exposure to RF energy, FCC OET bulletin 65 establishes an Maximum Permissible
Exposure (MPE) radius of 200 cm for the maximum power of your radio (25W selected) with an half
wave omni-directional antenna having a maximum gain of 3 dB (5.2dBi). This means all persons
must be at least 200 cm away from the antenna when the radio is transmitting.
Installation
1. An omni-directional antenna with a maximum power gain of 5.2 dBi must be mounted at least
400 cm above the highest deck where people may be staying during radio transmissions. The
distance is to be measured vertically from the lowest point of the antenna. This provides the
minimum separation distance which is in compliance with RF exposure requirements and is
based on the MPE radius of 200 cm plus the 200 cm height of an adult.
2. On vessels that cannot fulfil requirements in item 1, the antenna must be mounted so that its
lowest point is at least 200 cm vertically above the heads of people on deck and all persons must
be outside the 200 cm MPE radius during radio transmission.
• Always mount the antenna at least 200 cm from possible human access.
• Never touch the antenna when transmitting
• Use only authorized T&T accessories.
3. If the antenna has to be placed in public areas or near people with no awareness of the radio
transmission, the antenna must be placed at a distance not less than 200 cm from possible
human access.
Failure to observe any of these warnings may cause you or other people to exceed FCC RF exposure
limits or create other dangerous conditions.