15 meter tape

The frequency range from 21.0  MHz to 21.45 MHz is called the 15-meter band . It belongs to the shortwave range . The name is derived from the approximate wavelength of the area.

Propagation conditions

The propagation conditions of the 15 meter band are very dependent on the number of sunspots . During the sunspot minimum, there are only short band openings during the day in the summer months; during the winter time, there can even be total failures that can last for several days. All the more, at maximum solar activity, supported by low attenuation, very long distances can be bridged even with low power. Atmospheric disturbances have no effect on the belt.

15 meter amateur band

Band plan

The amateur radio - band plan is as follows:

Frequency range	Max. Bandwidth	use
21.000-21.070 MHz	200 Hz	CW, activity center QRS 21.055 MHz, activity center QRP 21.060 MHz
21.070-21.090 MHz	500 Hz	Narrow band, digimode
21.090-21.110 MHz	500 Hz	Narrow band, digimode, automatic stations
21.110-21.120 MHz	2700 Hz	all operating modes (no SSB), automatically working stations
21.120-21.149 MHz	500 Hz	Narrow band
21.149-21.151 MHz	-	international beacon project, no broadcasting
21.151-21.450 MHz	2700 Hz	all modes of operation, activity center SSB QRP 21.285 MHz, activity center “Worldwide Emergency Radio” 21.360 MHz

literature

• Hans Heinrich Meinke , Friedrich-Wilhelm Gundlach , Klaus Lange, Karl-Heinz Locher: Pocket book of high frequency technology: Volume 1: Basics . Springer, 1992, ISBN 978-3-540-54714-3 ( limited preview in Google book search).

Web links

• Frequency usage plan according to § 54 TKG of the Federal Network Agency