Option R&S ZVA<n>-B16, Direct Generator/Receiver Access, provides 3 pairs of SMA connectors (or smaller connectors, for microwave analyzers) for each test port. <n> corresponds to the network analyzer type. For detailed ordering information refer to the product brochure. See also section Converter Control.
The connectors give direct access to various RF input and output signals. They can be used to insert external components (e.g. external signal separating devices, power amplifiers, a ZVAX extension unit etc.) into the signal path in order to develop custom measurements, e.g. to test high power devices and extend the dynamic range. If no external components are connected, each OUT/IN loop should be closed using a jumper.
The SOURCE OUT signal comes from the internal RF signal source. The SOURCE IN signal goes to the test port. A power amplifier can be inserted between SOURCE OUT and SOURCE IN in order to boost the test port power.
The REF OUT signal comes from the coupler and provides the reference signal. The REF IN signal goes to the receiver input for the reference signal.
The MEAS OUT signal comes from the coupler and provides the received (measured) signal. The MEAS IN signal goes to the receiver input for the measured signal.
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Attention! The maximum RF input levels at all SMA inputs according to the front panel labeling or the data sheet must not be exceeded. In addition, it is important that the signal fed in at the SMA inputs contains no DC offset, as this may impair the measurements and even cause damage to the instrument. |
