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On the ENA I am receiving the message "Continuous switching may damage source attenuator". What corrective actions should I pursue?

FAQ 2012-03-16

What is the recommended transit case for my Agilent ENA Series Network Analyzer?
Custom fit ENA Series transit cases are not available. However customer can refer to other commercial company’s product like Pelican or ECS case.

FAQ 2012-02-15

How is trace math implemented within the Agilent Technologies Vector Network Analyzers?

FAQ 2012-01-11

What is an alternative solution to the 87075C / 87050E replacement?
Build your home-made switch box using the L4491A RF/MW switches. Refer to the application note for details.

FAQ 2011-12-09

Does the ENA support 87050E / 87075C series multiport test sets?
Unlike the E5061A and E5062A, the E5061B, E5071C and E5072A (ENA) does NOT support full functions of 87050E / 87075C. But it is possible to change switch state of 87050E-Hxx / 87075C-Hxx via GPIB.

FAQ 2011-12-08

Why Do I Get a "VCO Unlock Error" on my N9923A?
The solution is to upgrade firmware to A.05.04 or later.

FAQ 2011-11-14

Can I use S2P data characterized by the ENA, as the calibration mixer data for Vector Mixer Calibration on the PNA?
For the case of RF mixer (RF=LO+IF), there is no problem. However, when using an image mixer (RF=LO-IF) as the calibration mixer on the PNA, taking the S2P data in the ENA with a special setting is required...

FAQ 2011-10-17

When I perform receiver calibration on the ENA, why should I perform the power-calibration on both the output port and the input port?
Since the receiver calibration calibrates both the reference receiver and the test receiver, power level of both input and output should be calibrated.

FAQ 2011-10-17

Is it possible to measure a 50 to 75 Ω impedance matching device using the ENA?
50 to 75 Ω impedance matching device can be measured with the adapter removal/insertion feature and the impedance conversion feature of the ENA.

FAQ 2011-10-17

When I perform both the calibration with frequency offset off and the scalar-mixer calibration with frequency offset on, which one is valid?
If the frequency offset function is turned on, the scalar mixer calibration data is used.

FAQ 2011-10-17

Can I measure a dual conversion mixer on the ENA?
If the LO frequencies are fixed, dual conversion mixers can be measured with option 008 (Frequency-Offset Mode).

FAQ 2011-10-17

Can the ENA perform Vector Mixer Calibration (VMC) with Fixed RF or Fixed IF measurement?
No. It is not possible to perform Fixed RF measurements (RF: Fixed, LO and IF: Swept) with VMC.

FAQ 2011-10-17

How can I make 75 Ω measurements using the ENA?
You can make 75 Ω measurements with the ENA by shifting system characteristic impedance to 75 Ω.

FAQ 2011-10-17

Is there an outline to achieving a simplified mixer conversion loss measurement on the ENA?
Option 008, Frequency offset, is required for mixer measurements utilizing these analyzers.

FAQ 2011-10-16

On mixer measurement with the ENA and external signal source, should I connect frequency references of the ENA and external signal source?
Yes.

FAQ 2011-10-16

What is the Port Reference Impedance Conversion? Is this function available on the ENA / ENA-L?
The Port Reference Impedance Conversion is one of a feature of the Fixture Simulator. This function is only available on the ENA.

FAQ 2011-10-16

Can the ENA make mixer measurements?
Yes. With option 008 (Frequency-Offset Mode), you can measure frequency-converting devices, such as mixers.

FAQ 2011-10-16

On the ENA-L, can I use Normalize function like the 871x?
Yes. Data/Memory of the data math function is equivalent to Normalize function of the 871x.

FAQ 2011-10-16

When measuring active devices with an external DC power supply, are there any precautions?
Yes. Please be careful of transient voltages.

FAQ 2011-10-16

When utilizing the Frequency Offset Mode on the ENA, should the ENA's 10MHz reference and the external source's 10MHz reference be interconnected?
Yes

FAQ 2011-10-16

When the frequency-offset is turned on, the number of sweeps during measurement increases. Is this the normal operation for the ENA?
Yes.

FAQ 2011-10-16

Is there a trial license for the ENA software option?
It depends on models...

FAQ 2011-10-16

What will occur if I save touchstone file with different port reference impedance for each port?
The Z0 of the minimum port is selected for the reference port impedance of the saved data.

FAQ 2011-10-16

ENA & PNA Series Network Analyzer Frequently-Asked Questions (FAQs)

FAQ 2011-10-07

On the ENA and ENA-L, is there a SCPI command to query the active channel?
Yes.

FAQ 2011-10-07

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