Your contact partner for this product is: Michael Hirschmueller ǀ +49 9078 9695-95 ǀ

Switching unit


The switching unit is used for the switching of RF signals in the frequency range DC … 3 GHz. The unit is used in a satellite ground station.


The switching unit is housed in a 1 U 19“ subrack with very good RF shielding and consists of the following sub-assemblies:

-    relay switches SPDT
-    I/O board
-    power supply module

All the necessary signal, power supply and earthing connections are provided at the rear.
The mains switch is located on the front panel.


The unit is controlled via a TTL signal.

Special features

The unit is constructed using a modular approach utilising 19” plug-in sub-assemblies which enable ease of installation and maintenance.

Technical datameasured at 25 °C
Configuration:2 SPDT switches
with internal termination
Switching specifications
Impedance:75 Ohm, optional 50 Ohm
Frequency range:DC … 3 GHz
Insertion loss:1 dB max.
VSWR:1.3 : 1 max.
Isolation:80 dB min.
Input power:1 Watt CW max. (at 1 GHz)
Switching elements:failsafe relays
Switching time:20 ms max.
Switching cycles:1 million min.
Further specifications
Control:TTL signal
RF connectors:1.6/5.6 female, 75 Ohm (optional BNC female, 50 Ohm)
Power supply:195 … 264 VAC, 47 … 63 Hz
Connector3-pin, with mains filter and fuses
Mains switch:with integrated lamp
Temperature range:
Operating0 … 50 °C
EMC:in accordance with European standard EN 55022 and EN 50082-1/2
Height1 RU
Depth Front panel:19“about 360 mm (without connectors)
Depth Front panel:painted light grey (RAL 7032)