HYT TM-800K, Service Manual

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TM-800K Service Manual
1
Introduction
Manual Scope
This manual is intended for use by experienced technicians familiar with similar types of
communication equipment. It contains all service information required for the equipment and is current
as of the publication date.
Safety Information
The following safety precautions shall always be observed during operation, service and repair of this
equipment.
z This equipment shall be serviced by qualified technicians only.
z Do not modify the radio for any reason.
z Use only HYT supplied or approved antenna.
z Gain of antenna must not exceed 3dBi for VHF or 5.5dBi for UHF.
z Mobile antenna Installation: Install the mobile antenna at least 82cm (32 inches) away from your
body, in accordance with the requirements of the antenna manufacturer/supplier.
z Transmit only when people inside and outside the vehicle are at least the minimum distance away
from a properly installed, externally mounted antenna.
z Mobile antenna substitution: Don’t substitute HYT supplied or approved antenna, or excessive
radio frequency radiation will result. Please contact your dealer or the manufacturer for further
instructions.
z Please make sure there’s no stress on the antenna joint during transportation or installation.
z To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any area
where posted notices instruct you to do so. Hospital or health facilities may be using equipment
that is sensitive to external RF energy.
z For vehicles with an air bag, do not place a radio in the area over an air bag or in the air bag
deployment area.
z Turn off your radio prior to entering any area with explosive and flammable materials.
z Do not expose the radio to direct sunlight over a long time, nor place it close to heating source.