VLF transmitter DHO38

The VLF transmitter DHO38 is a VLF transmitter used by the German Navy near Rhauderfehn, Saterland, Germany. It is used to transmit coded orders to submarines of the German Navy and navies of other NATO countries.

DHO38 has transmitted since 1982 on 23.4 kHz with a power of up to 800 kilowatts. DHO38 uses an umbrella antenna which is carried from 8 steel tube masts with a height of 352.8 metres. Each pylon stands on 3 metre tall ceramic cylinders, which serve as insulators for voltages up to 300 kV. The masts are equipped with cylindrical oscillation dampers for better protection against storms. The transmitter is capable of transmitting signals to submarines worldwide to depths of approx. 30 metres.

External links

• Sendemasten Marinefunkstelle Saterland-Ramsloh at Structurae
• http://skyscraperpage.com/diagrams/?b45289

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Radio spectrum (ITU)

ELF 3 Hz/100 Mm 30 Hz/10 Mm

SLF 30 Hz/10 Mm 300 Hz/1 Mm

ULF 300 Hz/1 Mm 3 kHz/100 km

VLF 3 kHz/100 km 30 kHz/10 km

LF 30 kHz/10 km 300 kHz/1 km

MF 300 kHz/1 km 3 MHz/100 m

HF 3 MHz/100 m 30 MHz/10 m

VHF 30 MHz/10 m 300 MHz/1 m

UHF 300 MHz/1 m 3 GHz/100 mm

SHF 3 GHz/100 mm 30 GHz/10 mm

EHF 30 GHz/10 mm 300 GHz/1 mm

THF 300 GHz/1 mm 3 THz/0.1 mm

Radio portal

53°04′55″N 7°36′59″E / 53.08194°N 7.61639°E / 53.08194; 7.61639

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