R

adi Switch

®

The Maximum Flexibility in EMC Test Systems
Flexible · Versatile · Extensible
EMC test systems are complex installations with many test and measurement
instruments connected. In order to enable full automated testing, these devices
and measuring instruments as well as the connections made between amplifiers,
power meters, antennae and EMI receivers should be controlled in an automated
manner. To enable switching these signals DARE!! Instruments developed the
RadiSwitch® plug-in cards that can be used with the RadiCentre® modular
multifunctional EMC test system.
Flexible
The RadiSwitch® RF coaxial relay plug-in cards are able to switch RF signals
from DC till 40 GHz and with powers up to 700 Watts directly, or any RF
power indirect using externally controlled switches. RadiSwitch® plug-in cards
are available in several versions, with one, two or four SPDT coaxial relays or
SP6T coaxial relays. Any combination of plug-in cards is allowed, making the
system the most flexible switching systems in the world!!
Extensible
RadiSwitch® plug-in cards are designed to fit in the RadiCentre® modular EMC
test systems. This system has a backplane that will fit one, two or seven plug-in
cards, bringing the maximum capacity of the system to 343 switches! Of course
it is possible to build even larger switching systems by combining any number
of RadiCentre® systems.
Easy to use
The system is “Plug and Play”, which means that every board is automatically
recognised and initialised and ready for use. The user can configure and control
the functionality of every individual plug-in card by means of external software
or using the RadiCentre® colour TFT touch screen display.
Hardware interlock
The first relay of the RadiSwitch® plug-in card can either be used as a standard
relay or as a safety interlock relay. When using this relay as a safety interlock,
this enables the function to switch OFF the RF input to the amplifier, in order to
prevent personnel to be subjected to high radiated RF fields. The RF interlock
input can be connected to a switch on the entrance door of the test chamber.

Dijkstra Advice, Research & EMC Instruments B.V.
Vijzelmolenlaan 7 – NL-3447 GX Woerden
The Netherlands
Tel: +31 348 41 65 92
Fax: +31 348 43 06 45
Internet: www.dare.eu
E-mail: instruments@dare.eu
The Standard in EMC Instruments & Software,
Consultancy and Training.

External switch box
High power RF amplifiers are normally placed in separate test rooms with
appropriate cooling facilities. To control these amplifiers a RadiSwitch® plug-in
card can be connected to an external switch system which has an internal power
supply to power 12VDC/24VDC/28VDC external (high power) relays.
Software support
The RadiSwitch® plug-in cards are software controllable with RS-232 or IEEE488. Besides the RadiMation® integral EMC measurement software the system
can be controlled by any EMC measurement package using control commands.
Linux Based & Software upgrades
The system is Linux based, thus offering great stability and fast start-up times.
As all embedded software is stored in flash it is very easy to upgrade the system
with new versions, thus protecting the initial investment.