Operating instructions

MFJ-933 Loop Tuner
TM
Instruction & Technical Manual
- 1 -
RF HAZARD PRECAUTIONS
RF HAZARD BACKGROUND INFORMATION
The following WARNING is labeled on the MFJ-933 LOOP TUNER
TM
Rear
Panel:
WARNING
DO NOT touch or come into contact with Loop
Connectors or Loop Antenna while transmitting
YOU CAN BE SERIOUSLY INJURED
!!!
Using the MFJ-933 Loop Tuner
TM
can, and in fact does, produce LETHAL
voltages and HIGH CURRENTS during normal operation. The Hi-Q circuit
produced by resonating the wire loop connected to the tuner, and matching it to
the 50-Ohm coax supplying power creates this unique operating environment.
NOTICE
It is imperative that the operator specifically follows operating instructions and
complies with all CAUTIONS, WARNINGS, and FCC Guidelines for Human
Exposure to Radio frequency (RF) Electromagnetic Fields
Radio frequency (RF) Radiation
Radio frequency (RF) energy is one type of electromagnetic energy.
Electromagnetic waves and associated phenomena can be discussed in terms of
energy, radiation or fields. Electromagnetic "radiation" is defined as waves of
electric and magnetic energy moving together (i.e., radiating) through space.
The movement of electrical charges generates these waves. For example, the
movement of charge in a radio station antenna (the alternating current) creates
electromagnetic waves radiating away from the antenna and intercepted by
receiving antennas. Electromagnetic "field" refers to the electric and magnetic
environment existing at some location due to a radiating source such as an
antenna.