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← Radio Crypto Data Telefunken ETM-1810 →
HF radio modem with FEC
- this page is a stub
ETM-1800 was a high-end HF radio modem with error-correcting features like
Forward Error Correction (FEC) and echo-cancelling,
developed in the early 1980s
by Telefunken 1
in Ulm (Germany). The device was mainly intended for use by the
German Armed Forces and by NATO.
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The device is housed in a 4U 19" rackmount enclosure, as shown in the image
on the right. It has several controls for setting the baudrate and selecting
the desired transmission protocol,
plus a LED-bar that shows the signal quality.
Several LEDs are available to show the current status.
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The layout of the front panel is in the same style as that of the E-1800
receiver, which was part of the same family of devices. In the FARCOS
communications system, they were mounted in the same 19" rack.
The ETM-1800 was succeeded in 1984 by the 1U high
ETM-1810
and ETM-1820.
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© Crypto Museum. Created: Monday 26 March 2018. Last changed: Monday, 26 March 2018 - 14:52 CET.
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![Front panel of the ETM-1800 [1]](img/etm1800_thumb.jpg "image # etm1800_large.jpg")
![Jim Meyer with a double FARCOS installation in the former Telefunken Museum in Ulm in 2015 [1]](img/farcos_jim_thumb.jpg "image # farcos_jim_large.jpg")
![Front panel of the ETM-1800 [1]](img/etm1800_large.jpg)
![Jim Meyer with a double FARCOS installation in the former Telefunken Museum in Ulm in 2015 [1]](img/farcos_jim_large.jpg)