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Audio Technology 3
The operation of the SUP3 has also changed. A
colour OLED display is now available. It is operated
comfortably with a rotary wheel (rotary encoder).
A very special feature, as already mentioned, is the
USB connection. This makes it possible to transfer
digital audio data from the PC to the SUP3. The SUP3
functions as an external sound card. Remote control
is also possible via the USB connection.
Change of Function
Fig. 1
shows the connection diagram for the SUP3
with all connection variants. The device under test
is shown here as a vintage radio. Please note that a
shielded cable must always be used as the connecting
cable to the device under test and must be connected
directly to the antenna input of the device. As already
mentioned, the SUP3 is a test generator and not a VHF
transmitter in the conventional sense. Therefore, HF
radiation must be avoided at all costs.
Figure 1: Connection diagram of SUP3
DUT Device Under Test
USB-Power
+
Control Commands
Digital
Audio data
PC
USB-HID
Analog
Audiodata
