EU Declaration of Conformity: “CE”
NOTE: This equipment, Kantronics’ KAM’98, has been tested and found to
comply with the essential emission and immunity requirements of the EMC Di
-
rective 89/336/EEC. The test results are on file at the corporate offices of
Kantronics.
Type of Equipment: Information Technology Equipment
Class of Equipment: Class B
RFI Suppression
In moving to the world of digital communications via computers, a new dimen-
sion of RFI may be encountered. In spite of the equipment manufacturers’ dili-
gence, each new piece of electronic equipment will react differently in each
separate environment. Every amateur station will have its own unique layout,
equipment variation, and antenna installations. Experience has shown that these
differences are related to the total RF environment, and may be causative factors
in RFI induced problems. The suggestions given here may assist in resolving
RFI problems you may encounter in your “unique” station.
• Use shielded cable for all connections between equipment.
•
Make all interconnecting cables as short as practical. A balance should be
maintained between cable length and equipment proximity. At times
simply moving the video monitor one foot further from an interface or
other device will solve a “screen hash” problem.
•
Antenna runs should be kept away from equipment control lines and/or
interconnecting cables. If it is necessary for such lines to cross each other
they should do so at 90 degree angles.
•
Ground leads should be as short as possible and go to a GOOD EARTH
GROUND.
•
Interconnecting cables appearing to act as radiators or antennas should be
looped through a toroid. Be certain toroids, if used, are designed for the
frequency in use.
EU Declaration of Conformity: “CE”
User’s Guide 10 KAM’98 v 8.3
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