FUTABA FDL01TU, Instruction Manual

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accidental damage to the system and unexpected operation and/or
injury.
Be sure the FDL01TU modem power, the power to the equipment
that is being connecting to it, and the DC power source are all turned
off before wiring and connecting the power cable.
Be sure that the supplied power is within the specified range (3.5 to
7.0 VDC). Voltages outside the specified range may damage the
FDL01TU modem.
Be sure that the power source has sufficient current capacity.
Insufficient current may cause the unit to malfunction.
Securely attach the antenna cable, and serial communication
connector to the FDL01TU modem and equipment/power source to
which it is connected. Failure to do so could cause an unexpected
system failure.
II.III
Antenna Installation Hazards and Notes
Be sure to keep all systems and antennas clear of power lines.
Permanent equipment damage and severe shock injury or death can
occur if the system contacts power lines.
This device has been designed to operate with an antenna having a
maximum gain of 2.14 dB. Antenna having a higher gain is strictly
prohibited for use with this device. The required antenna impedance
is 50 ohms.
Contact Futaba before connecting any antenna not provided by
Futaba specifically for the FDL01TU modem. Attaching any non-
authorized antenna may be in violation of FCC regulations.
To reduce potential radio interference to other users, the antenna type
and its gain should be so chosen that the equivalent isotropically
radiated power (e.i.r.p.) is not more than that permitted for successful
communication
.
When using two antennas with a single FDL01TU modem for
diversity reception, mount the antennas as far apart as possible (6 cm
minimum). If the antennas are too close, the diversity advantage will
not be achieved.