en:se-412
Unterschiede
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+ | ====== SE-412/K ====== | ||
+ | **VHF Radio SE-412/K**, **VRC-12** resp. **VRC-43**; Transceiver **RT-264**, manufactured by [[Associated Industries]]. | ||
+ | In the late sixties, American VHF radios were acquired with the purchase of the American armored personnel carrie M113: the system **[[SE-412|AN/ | ||
+ | |||
+ | The variant **RT-264** with ten electomechanical frequency presets and motor tuning was originally not used in Switzerland. Only when the tank 87 " | ||
+ | |||
+ | {{: | ||
+ | ===== Specifications ===== | ||
+ | * [[Principle]]: | ||
+ | * [[Modes]]: [[F3|FM (F3)]] | ||
+ | * [[Frequency Range]]: 30-52.95 and 53-75.95 MHz, 920 channels with 50 kHz channel spacing | ||
+ | * ten mechanical frequency presets; no internal speaker | ||
+ | * [[Sensitivity]]: | ||
+ | * [[Output Power]] [[F3]] 1-3 W (low power) / 35 W (high power) | ||
+ | |||
+ | ==== Power Supply ==== | ||
+ | * [[Mains]]: only with mains supply unit | ||
+ | * [[Accumulator / Batteries]]: | ||
+ | |||
+ | ==== Dimensions ==== | ||
+ | * 381 x 152 x 330 mm, 26.4 kg | ||
+ | |||
+ | ==== Accessories ==== | ||
+ | * The standard antenna for the SE-412/K onboard the " | ||
+ | * In U.S. standard installations, | ||
+ | |||
+ | ---- | ||
+ | |||
+ | ===== Operation ===== | ||
+ | The VHF radio covers the military VHF range in two bands (30 - 52.95 and 53 - 75.95 MHz) in 50 kHz steps, the transmitter output power can be varied, in position POWER LOW, with an output power of 1 - 3 W the communication range is approx. 5 km, in position HIGH, with an output of approx. 35 Watts, the range is increaded to 20 - 30 km when the standard whip antenna is used. | ||
+ | |||
+ | On the front panel of the **transceiver**, | ||
+ | |||
+ | The SQUELCH switch is located in the lower left corner of the front panel: in the SQUELCH OLD mode, the receiver is activated by an incoming signal, in NEW position by a 150 Hz audio subcarrier from another set of the SE-412/227 family. Right next to it, the volume control. | ||
+ | |||
+ | In the middle of the front panel, the band switches for the two VHF ranges A and B (30 - 52/53 - 75 MHz) and automatic switchover from the remote control in the AUTO position are loacted; below is the operation switch with the positions for low and high transmitter output and REMOTE operation. | ||
+ | |||
+ | To the right, the push-buttons for the ten channel presets are located, the frequencies are preset electromagnetically for each button. \\ | ||
+ | In the right upper corner is the antenna socket. The automatic antenna tuner is connected to the ANT CONT(rol) socket. | ||
+ | |||
+ | For mechanical presetting of the frequencies, | ||
+ | |||
+ | With a **C-2724** channel selectorc onnected to the REMOTE connector, the ten channels of the RT-264 can be remotely controlled. The X-MODE connector is provided for connection of a voice encryption device [[SVZ-B]]. | ||
+ | |||
+ | ===== Technical Principle ===== | ||
+ | {{: | ||
+ | |||
+ | ==== Semiconductor Layout ==== | ||
+ | In the RT-264 sets manufactured after 1.1.1983, all solid state modules were used, these are only partially compatible with the ones in older sets. | ||
+ | |||
+ | ==== Development ==== | ||
+ | The RT-264 frequency-modulated VHF radio was developed by the American **Avco Corporation** and was launched in the US around 1965.\\ | ||
+ | Only in 1984, when the tank Leopard II was equipped with **SE-412/ | ||
+ | |||
+ | {{gallery>: | ||
+ | |||
+ | ===== Technical Documentation ===== | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
+ | ==== Additional Informations ==== | ||
+ | * [[https:// |
en/se-412.txt · Zuletzt geändert: 2019/11/23 10:34 von 127.0.0.1