Radio waves, light, X rays, are all electromagnetic waves. The only thing
that differentiates them is their frequency.
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For convenience the range of frequencies used for radio
communications is split into bands. Frequencies below 100 kHz are
called Very Low Frequencies (VLF). The Long Wave (LW) covers
frequencies between 100 kHz and
300
kHz, whilst the Medium Wave (M W)
covers the frequencies between 300 kHz and 1.6 MHz (1 600 kHz).
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All frequencies between 1.6 MHz and 30 MHz are referred to as Short
Waves (S W).
MW
sw
The
HF3 covers all of these bands in one continuous sweep with steps
of 1 kHz. Numbers to the left of the decimal point are in MHt whilst
those to the right are
in kHz.
e.g.
0.198 is expressed as 198 kHz or 0.198 MHz
14.386 is expressed as 14386 kHz or 14.386 MHz
Turning the tuning knob slowly advances the tuning in 1 kHz steps,
turning a little faster the steps change to 10 kHz, faster still the steps
become 100 kHz, and a really fast spin will make the steps 1 MHz.
This makes it quick and simple to hop from one end of the spectrum to
the other.
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