Marshall Amplification Field Marshall 100 Owner's Manual page 7

5
Turning It On
The receiver is turned on by rotating the Volume Knob on
the front panel. It turns off again by turning to the left with a
final click.
6
Tuning
The frequency is selected with the three numbered
switches (two switches in
the case of the FM100.)
They indicate the kilohertz (KHz) of
the frequency.
The frequency of the receiver is
very accurate (within one KHz) but
to get the best tone may need to set
the frequency 1 to 3 kHz above or
below the frequency marked on your transmitter. This is perfectly
normal. If you can't hear the signal at all, try moving through the
whole range of numbers on the rightmost digit. For example, if your
transmitter is marked 216.025 you may end up tuning somewhere
between 216.022 and 216.028 (possibly even further away.)
The FM4000 Model has a
Switch
which gives you a choice
of which megahertz (MHz) band
you want to tune to. (For example,
each of the 216, 217, 218, and 219
MHz bands.)
The Fine Tune Knob
can adjust the frequency slightly (within one
KHz.) The tuning is very broad and not "touchy."
When tracking an extremely weak signal this
knob is useful because you will get the best range by adjusting the
Fine Tune to the strongest pitch (about 700-800 Hertz, or the upper
end of the treble clef on a piano).
For everyday tracking you can set Fine Tune anywhere you want –
many people prefer very high tones because they are sound so
clear. Just tune to what sounds best to you.
The FM1000 FM1000 gives 1000 different frequency
FM1000 FM1000
choices.
Band
The FM4000 FM4000 gives 4000 different frequencies
FM4000 FM4000
choices by providing a Band Selection Switch.
is available so you
Ow ner's Manual
Page 7