Kantronics KPC-2 - Page 9

Radio Frequency Interference Statement
This equipment complies with the limits for a Class B computing device in accordance
with the specifications in Subpart J of Part 15 of the FCC rules. These specifications
are designed to minimize radio frequency interference in a residential installation;
however, there is no guarantee that radio or television interference will not occur in
any particular installation. If this equipment does cause interference to radio or
television reception, which can be determined by turning the equipment off and on
when the radio or television is on, the user is encouraged to try to correct the
interference by one of the following measures.
* Reorient the radio or TV receiving antenna
* Relocate the computer with respect to the receiver
* Move the computer away from the receiver
* Plug the computer into a different outlet so that the computer and the receiver are
on different branch circuits.
If necessary the user should contact the dealer or an experienced radio/TV technician
for additional suggestions. The user may find the following booklet prepared by the
FCC helpful:
How to Identify and Resolve Radio-TV Interference Problems.
This booklet is available from the U.S. Government Printing Office, Washington, D.C.,
. 20402 by ordering Stock No. 004-00000345-4.
RFI Suppression󰾰 جم
In
moving
to
the
world
of
digital
communications
via
computers,
a
new
dimension
of
RFI
may
be
encountered.
In
spite
of
the
equipment
manufacturers'
diligence,
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.
1.
Use
shielded
cable
for
all
connections
between
equipment.
2.
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
the
"screen
hash"
problem.
3.
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.
4.
Ground
leads
should
be
as
short
as
possible
and
go
to
a
GOOD
EARTH
GROUND.
9.
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.
©
Copyright
1989,
Kantronics,
Inc.
All
Rights
Reserved.
e
Duplication
of
this
manual
or
the
firmware
without
1
Version
2.85
permission
of
Kantronics,
Inc.
is
prohibited.
Installation
Manual
77