
1
DOCNUMBER 8406
Document Issue 1.0
February 2014 Page 1–3
RF Concepts LLC Alpha 8406 Linear Amplifier User Manual
Introduction
1.3 Safety Considerations
General Considerations
For safe operation, take the following precautions:
•Locate the amplifier where there is good air circulation all around and
on top of the cabinet. The unit may become hot during operation.
•Move the amplifier only with great caution, being sure to do the
following:
— Remove the transformer and move it separately from the
amplifier by means of its lifting handle. Never transport the
amplifier with the transformer in place, as together they weigh
~70 pounds.
— Use proper lifting techniques and two people.
•Remember that, although the Alpha 8406 meets international safety
standards and US Federal Communications Commission (FCC)
regulations, it works with high voltages that can be LETHAL.
!
IMPORTANT •NEVER open the amplifier case without first unplugging the
unit from the wall outlet.
•NEVER touch an antenna during transmission.
•NEVER turn on the amplifier without the cover securely in
place and all attachment screws inserted.
•NEVER turn the amplifier back on after a hard fault (that is, a
fault to power off) without waiting at least 20 seconds.
•NEVER cover or obscure the exhaust holes in the amplifier
cover. Never stick objects into the holes or allow liquids to
enter through the holes.
RF Exposure
The FCC requires users to check their installations for compliance with
published values for allowable exposure to RF fields. This information is
available in American Radio Relay League (ARRL) publications, FCC
printed rules, and on the web. We strongly recommend that you do this
for any installation, either fixed and at an expedition or contest site.