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S A F E T Y
S-8
Installation and Operation Manual
General Microwave Guidelines
The purpose of these guidelines is to provide practical approaches
to control unwanted microwave energy associated with the
operation and servicing of CPI Satcom Division equipment.
The following approaches are effective in both laboratory or field
environments:
a.
Always terminate the output waveguide or connector with
a dummy RF load (capable of dissipating full CW RF
power). Similarly, terminate the input to avoid the
possibility of the amplifier being driven by stray leakage
signals.
Incorporate the terminations prior to applying
prime power to the amplifier. This procedure prevents self-
oscillation and irradiation of the local equipment.
b.
Do not look into the output port of the powered RF
amplifier.
Treat the powered amplifier as though it is a
loaded gun. Your eyes are particularly vulnerable parts of
your body.
c.
Shut off the unit if you are trying to locate a RF leak.
As
noted earlier, the levels of concern are very low. Examine
the physical unit with the high voltage OFF. If you have to
survey the RF runs with the power ON to find the leaky joint
or component, start by testing the system with low RF input
with a radiation meter.
If the microwave radiation exceeds 0.5mw/cm. sq., shut OFF
the high power voltage and consult your supervisor. Work
quickly (not at a panic pace) to minimize the dose level. The
dose you get is directly proportional to the power level and
the time you are exposed. Exposure to microwave radiation
can induce both thermal and non-thermal biological effects,
especially with the eyes. If you damage the lens of your eyes
by exposure to microwave radiation, cataracts can result.
Consider that small microwave ovens are very effective in
cooking foods. If you follow these guidelines you can
minimize exposure of yourself and other people in the
operations that you control.
Summary of Contents for T04CO
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