en:se-125
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+ | ====== SE-125 ====== | ||
+ | **Kleinfunkgerät SE-125**; developed and produced by [[Autophon|Autophon AG, Solothurn]]. | ||
+ | In 1969, a new " | ||
+ | The solid state set exists in six variants: they all have three channels 6, 7, 8 in common, the channels 1 - 5 operate on different frequencies according to the set variant; they can be recognized by the color of the typeplate. | ||
+ | |||
+ | The SE-125 has been replaced by the SE-135, it has still been used by Swiss Civil Protection after 2000. | ||
+ | |||
+ | ===== Technical Data ===== | ||
+ | {{ : | ||
+ | * [[Principle]]: | ||
+ | * [[Modes]]: [[F3|FM (F3 resp. G3E)]] | ||
+ | * [[Frequency range]]: 77,5 - 87,5 MHz, 8 crystal controlled channels in the frequency range | ||
+ | * [[Sensitivity]]: | ||
+ | * [[Output power]]: 0,5 W | ||
+ | |||
+ | ==== Power Supply ==== | ||
+ | * [[Accumulator / Batteries]]: | ||
+ | |||
+ | Usually, the SE-125 is powered by a special cylindrical 7,5V battery, as an alternative special 6V NiCd accumulators could be used - the batteries are inserted in a compartment covered by a lid at the bottom face of the set. | ||
+ | |||
+ | ==== Dimensions ==== | ||
+ | {{ : | ||
+ | * 287 x 142 x 57 mm, 2.4 kg | ||
+ | |||
+ | ==== Accessories ==== | ||
+ | * standard antenna is a rod antenna of 1,2 m plugged in to the antenna connector on the top face of the set. | ||
+ | * as an alternative, | ||
+ | {{ : | ||
+ | * as a standard, the " | ||
+ | * only for training purposes, there was an external speakter to be used with the SE-125. | ||
+ | {{ : | ||
+ | |||
+ | ==== Variants ==== | ||
+ | The different variants of the SE-125 which come with different frequency coverage can be distinguished by their channel numbers and the colour of the typeplate. The channels 6, 7 and 8 are common channels, on which SE-125 sets from different variants or colours can communicate. | ||
+ | |||
+ | ^Colour code ^Channels||||^ Common||^ | ||
+ | |grün|1|2|3|4|5|6|7|8| | ||
+ | |weiss|11|12|13|14|15|6|7|8| | ||
+ | |gelb|21|22|23|24|25|6|7|8| | ||
+ | |blau|31|32|33|34|35|6|7|8| | ||
+ | |rot|41|42|43|44|45|6|7|8| | ||
+ | |schwarz|51|52|53|54|55|6|7|8| | ||
+ | |||
+ | ===== Operation ===== | ||
+ | {{: | ||
+ | |||
+ | The set has a typical rounded metal case, the combined microphone / speaker (the so-called " | ||
+ | |||
+ | The dimensions of the SE-125 are 287 x 142 x 57 mm, it's weight with the battery 2,4 kg; it can be carried with a canves strap and has a flexible (often bended) wire antenna screwed plugged in the socket on the top face of the set. | ||
+ | |||
+ | {{ : | ||
+ | At the rear end, You find the push-to-talk button and underneath the connector for an external handset (called " | ||
+ | |||
+ | A simple antenna that is made of a kind of stiff wire can be connected to the BNC antenna socket, it's top part can be pulled out to give a total length of 1,2 m. After some time of use, these antennas have been bent many times and do not look like new anymore. The same antenna can be connected via a coaxial antenna cable, this arrangement is called " | ||
+ | |||
+ | The SE-125 is extremely easy to operate: insert the battery and mount the antenna, select the desired channel, main switch to "big dot", You should hear a noise. After having made contact with the second set, switch to " | ||
+ | |||
+ | The " | ||
+ | |||
+ | The SE-125 is a short distance personal transceiver, | ||
+ | |||
+ | It is illegal to operate your SE-125, as it's operation frequencies are just below the FM broadcast band, but it's a nice set to have in the collection. | ||
+ | |||
+ | ===== Technical principle ===== | ||
+ | {{: | ||
+ | |||
+ | ==== Semiconductors ==== | ||
+ | The SE-125 is a solid state set. | ||
+ | |||
+ | ==== Development ==== | ||
+ | In the early sixties, [[Autophon]] had developed a compact VHF transceiver which was widely used in public services communications and by swiss railways. It turned out to be so successful, so that [[Autophon]] got an order to develop a compact squad radio. After the development phase 1960/5, a total of 28'200 sets have been acquired for the army and 9410 sets for Swiss Civil protection in the years 1967/76. | ||
+ | |||
+ | ==== Field Use ==== | ||
+ | {{ : | ||
+ | The SE-125 is intended for short range communications, | ||
+ | |||
+ | In the seventies until 2002, so for over thirty years, the SE-125 was the most commonly used wireless set in the Swiss Army and it was used in virtually every company and squad. The SE-125 was used for squad exercises, for guard patrols and shootings exercise guard. It was the only military radio that was used not only by signalmen, but also by untrained soldiers. Caporals (sergeants) and officers got a quick instruction without technical beackground, | ||
+ | |||
+ | The major drawbacks was the demand for special 7,5 Volt batteries (which had the tendency to be exhausted when really needed), the short transmission range and the fact that the frequency modulated speech signals werde not encrypted or scrambled. | ||
+ | |||
+ | So all message content hat to be " | ||
+ | |||
+ | {{gallery>: | ||
+ | |||
+ | ===== Technical Documents ===== | ||
+ | * {{ : | ||
+ | |||
+ | ==== Additional Information ==== | ||
+ | * [[http:// | ||
+ | * [[https:// | ||
+ | * [[http:// |
en/se-125.txt · Zuletzt geändert: 2018/12/25 17:12 von 127.0.0.1