en:se-450
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+ | ====== SE-450 (F6 station) ====== | ||
+ | **Radio station SE-450** or **F6 Station** of the Swiss [[embassy radio|embassy radio service]]; al equipment is manufactured by different manufacturers, | ||
+ | In the early 1970s, the Swiss embassy radio service changed from telegraphic to radio teleprinter operation, so new station equipment was needed for the so-called **F6 Station**. The centerpiece was the 1 kW commercial transmitter Siemens [[S-502|S654]] used to transmit two radio telegraphy channels with a time offset, so-called F6 operation. | ||
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+ | For the training of the signalmen in Switzerland, | ||
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+ | ===== Technical Data ===== | ||
+ | {{ : | ||
+ | * [[Principle]]: | ||
+ | * [[Receiver]]: | ||
+ | * [[Transmitter]]: | ||
+ | * [[Modes]]: [[A1]], [[A3J|SSB (A3J]], [[F1]] (FSK telegraphy), | ||
+ | * [[Frequency range]]: 1.5 - 30 MHz (reception 0.5 - 30.5 MHz) | ||
+ | * [[Sensitivity]]: | ||
+ | * [[Output power]]: 1000 W eff. | ||
+ | |||
+ | ==== Power Supply ==== | ||
+ | * [[Mains]]: three-phase mains 3 x 380/220 V | ||
+ | * [[Generator]]: | ||
+ | |||
+ | ==== Dimensions ==== | ||
+ | The mobile radio station for training puposes came installed in a shelter on a Berna truck, the generator on a single-axle trailer. | ||
+ | * Station vehicle: Berna 4x4 Truck | ||
+ | * Generator: Saurer / BBC C485D, a water-cooled four-stroke diesel engine of 25 hp drives a 15 kVA three-phase generator. | ||
+ | {{ : | ||
+ | ==== Accessories ==== | ||
+ | * A 2 x 15 m dipole is used as the standard antenna. | ||
+ | * A 3.6 m rod antenna was to be used for reception. | ||
+ | * The teleprinter used in the original embassy radio station was the well known Siemens [[Stg-100]], | ||
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+ | ===== Station Equipment ===== | ||
+ | The complete embassy radio training station SE-450 was installed onboard a Berna truck, it consists of a Siemens 1kW transmitter [[S-502]] and two receivers, in the original configuration, | ||
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+ | The transmitter [[S-502]] is the 1 kW FSK transmitter S654 made by [[Siemens]]. Manual keying in A1 mode was provided for emergency communication.\\ | ||
+ | The transmitter covers the complete range of 1.5 - 30 MHz in three bands: 1.5 - 4 / 4 - 11 / 11 - 30 MHz. | ||
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+ | In the original configuration, | ||
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+ | {{ : | ||
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+ | The teleprinter Siemens [[Stg-100]] was used as terminal unit, in addition two punched tape transmitters 61d. A Siemens 30 RTTY adaptor, a channel synchronization unit 70 (K Syn), a punched tape comparator (STREIKO, Albiswerk), | ||
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+ | The antenna switching unit G3 feeds the RF to the antenna system, the station has an automatic antenna tuning device, an artificial antenna Bird 8251 and a 2 × 15 m dipole as standard antenna. | ||
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+ | ===== Technical principle ===== | ||
+ | |||
+ | ==== Valve layout ==== | ||
+ | * [[Receiver]]: | ||
+ | |||
+ | ==== Development ==== | ||
+ | {{ : | ||
+ | |||
+ | ==== Field use ==== | ||
+ | The **F6 radio station** was used as [[Embassy radio]] station, a total of 35 stations was acquired. Six stations were used at the Swiss embassy radio center in Murain (or Aegerten near Kernenried). | ||
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+ | In the next generation of the embassy radio, the transmitter driver [[TD 90]] from [[SRT]] was used together with the Siemens 1 kW as power amplifier, the [[CR91]] also [[SRT]] as main receiver and the operation mode was changed to [[ARQ]] operation. | ||
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+ | Six mobile stations with similar equipment were used as **SE-450** for training purposes to train signalmen from Fk Kp 48 and operators for the stations in the Swiss embassies. | ||
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+ | {{gallery>: | ||
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+ | ===== Technische Unterlagen ===== | ||
+ | * {{: | ||
+ | ==== Weitere Informationen ==== |
en/se-450.txt · Zuletzt geändert: 2020/01/01 17:39 von 127.0.0.1