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Page 9FT-897 OPERATING MANUAL
INSTALLATION
RF FIELD EXPOSURE
This transceiver is capable of power output in excess of 50
Watts, so customers in the United States may be required to
demonstrate compliance with Federal Communications
Commission (FCC) regulations concerning maximum per-
missible exposure to radio frequency energy. Compliance is
based on the actual power output used, feedline loss, an-
tenna type and height, and other factors which can only be
evaluated as a system.
Information regarding these regulations may be available
from your Dealer, your local radio club, from the FCC di-
rectly (press releases and other information can be found on
the FCC’s site on the World Wide Web at <http://
www.fcc.gov>), or from the American Radio Relay League,
Inc. (225 Main St., Newington CT 06111 or <http://
www.arrl.org>).
Although there is negligible radio frequency (RF) leakage
from the FT-897 transceiver itself, its antenna system should
be located as far away from humans and animals as practi-
cable, so as to avoid the possibility of shock due to acciden-
tal contact with the antenna or excessive long-term expo-
sure to RF energy. During mobile operation, do not transmit
if someone is standing adjacent to your antenna, and use the
lowest power possible.
Never stand in front of an antenna (during testing or opera-
tion) when RF power is applied, especially in the case of
430 MHz directional arrays. The 20 Watt power output sup-
plied by the FT-897, combined with the directivity of a beam
antenna, can cause immediate heating of human or animal
tissues, and may cause other undesirable medical effects.
ELECTROMAGNETIC COMPATIBILITY
If this transceiver is used with, or in the vicinity of, a com-
puter or computer-driven accessories, you may need to ex-
periment with grounding and/or Radio Frequency Interfer-
ence (RFI) suppression devices (such as ferrite cores) to
minimize interference to your communications caused by
energy from the computer. Computer-generated RFI is usu-
ally a result of inadequate shielding of the computers cabi-
net or I/O and peripheral connections. While computer equip-
ment may “comply” with RF emission standards, this does
not ensure that sensitive Amateur Radio receivers like the
FT-897 will not experience interference from the device!
Be certain to use only shielded cables for TNC-to-Trans-
ceiver connections. You may need to install AC line filters
on the power cord(s) of the suspected equipment, and
decoupling ferrite toroidal chokes may be required on inter-
connecting patch/data cables. As a last resort, you can try
installing additional shielding within the computers case,
using appropriate conductive mesh or conductive shielding
tape. Especially check “RF holes” where plastic is used for
cabinet front panels.
For further information, consult amateur radio reference
guides and publications relating to RFI suppression tech-
niques.
HEAT AND VENTILATION
To ensure long life of the components, be certain to provide
adequate ventilation around the cabinet of the FT-897. The
cooling system of the transceiver must be free to draw cool
air in from the side of the transceiver and expel warm air
from the rear of the transceiver.
Do not install the transceiver on top of another heat-gener-
ating device (such as a linear amplifier), and do not place
equipment, books, or papers on top of the transceiver. Place
the transceiver on a hard, flat, stable surface. Avoid heating
vents and window locations that could expose the transceiver
to excessive direct sunlight, especially in hot climates.
Heat Dust VentilationWater & Moisture
Note
Save the packing materials in case you need to trans-
port the set (on an airplane, etc.) and/or return the set
for service.
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