Operating instructions

MFJ-933 Loop Tuner

Instruction & Technical Manual

- 17 -

SYSTEM OPERATION

MFJ-933 LOOP TUNER

OPERATION

The most important aspect of using the MFJ-933 Loop Tuner

is it opens-up

opportunity for Hams to once again experiment while enjoying operating at the

same time. Imagine how exciting it can be to establish contact with a distant

station using an antenna that you designed for the first time. Even more so, what

if you are just using a few watts, and the antenna is just a few feet away from

your operating position inside your home!

Operation is simple, but must follow specific steps in a specific order. Moreover,

you must have first consulted the RF Hazards section of this manual to ensure

compliance with established standards for Minimum Permissible Exposure (MPE)

to certain levels of RF radiation.

WARNING

DO NOT touch or come into contact with Loop

Connectors or Loop Antenna while transmitting

YOU CAN BE SERIOUSLY INJURED

!!!

Step 1

Place the MFJ-933 Loop Tuner

at the chosen place of operation, and connect

the loop antenna to the wing nut terminals on the rear panel.

Step 2

Using a pre-cut prepared wire and fasteners (non-conductive plastic clothespins

for example) form a loop to enclose as much area as possible (for example,

clothespin a wire loop to a curtain around a window frame). A circle encloses the

maximum area. Otherwise, drape it across bookcases or similar objects to

fashion a loop of sorts to use. If the loop antenna is rigid, then place the Loop

Tuner

in a position to accommodate its particular shape and size.

Step 3

Complete the typical MFJ-933 Loop Tuner

setup configuration as illustrated in

Figure 6 of this manual.