Rf Receiver - Viavi CX100 ComXpert Operation Manual

Chapter 5 RF Instrument Function Descriptions
RF Test

5.2.5 RF Receiver

The RF Receiver controls and settings are used to determine how the instrument
processes an incoming signal. In order to obtain accurate test and measurement results,
RF Receiver parameters must be set according to the known characteristics of the
incoming signal.
The RF Receiver Port, Frequency, Reference Level and External Attenuator
parameters apply to all types of incoming signals. There are additional parameters that
must be configured depending on the type of modulation that has been applied to the
incoming signal. The modulation type that is selected from the RF Receiver
Demodulation Type menu enables the parameters applicable to each modulation type.
Input Overload Caution
CAUTION
Do not overload input connectors. Refer to product labeling or product specifications
for maximum input ratings.
5.2.5.1 RF Receiver Controls and Settings
The following controls and settings are used to configure the CX100 RF Receiver. The RF
Receiver should be configured according to the expected characteristics of the incoming
signal.
Control/Setting
Port
Rev 002
5 - 10
Table 5-4 RF Receiver Controls and Settings
Description
The RF Receiver Port menu selects the input connector at
which the incoming signal is being received. This setting should
be selected according to the properties of the incoming signal
and the requirements of the test being performed.
ANT/SWR
ANT/SWR should be selected for performing high sensitivity,
low power measurements. When ANT/SWR is selected, the
RF Receiver's pre-amplifier is available.
"PreAmp On/Off Soft-key", on page 5-13
DUPLEX
DUPLEX should be selected for receiving high power
signals.
See "Input Overload Caution" on page
If the test involves a high power incoming signal that exceeds
the input ratings of the RF Receiver input connectors, use an
external attenuator (see
below).
CX100 ComXpert Operation Manual
See section ,
for information.
5-10.
"External Attenuator" description
22144015
August 2023