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Frequency Tuning Times
Many factors contribute to RF signal generator frequency tuning times. One factor is the amount of time required for the PXI-5610 upconverter phase-locked loop (PLL) to lock to a new frequency. Because the RF signal generator is an AWG-based vector
- 2 minute(s) read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Frequency Tuning Times
The PXIe-5654 is a highly agile frequency synthesizer. When the fast tuning option is available, the PXIe-5654 can usually tune to and from any frequency in 100 µs or 150 µs when tuning to frequencies less than 250 MHz. One
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Modulation
Modulation is a process that alters the characteristics of a carrier wave according to information in the message signal to generate and transmit a modulated wave. There are several different types of modulation.
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Power Level Adjustment
The PXIe-5654 RF Analog Signal Generator has two modes for power level adjustment: automatic leveling control (ALC) disabled (open-loop mode) and ALC enabled (closed-loop mode). Note When using the PXIe-5654 as a stand-alone device, only open-loop mode is supported because
- 2 minute(s) read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Power On and Reset Conditions
The PXIe-5654 RF Analog Signal Generator is in the following state after powering on or restarting the system. The RF analog signal generator frequency is set to 1 GHz. The RF analog signal generator power level is set to -7
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Power Search
A power search temporarily enables the ALC (closed-loop mode), adjusts the RF output power for better accuracy, and then disables the ALC (open-loop mode). Performing a power search is useful during modulation, specifically when you desire the accuracy of the
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Querying Device Temperature
Query the value of the Device Temperature property or the NIRFSG_ATTR_DEVICE_TEMPERATURE attribute to return the temperature of the internal RF circuitry of the PXIe-5654 RF Analog Signal Generator. If you are using the PXIe-5654 with the PXIe-5696 Amplitude Extender, you
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Temperature Monitoring
Both the PXIe-5654 RF Analog Signal Generator and the PXIe-5696 Amplitude Extender have an internal temperature sensor that monitors the RF analog circuitry temperature. You can query these internal temperature sensors using NI-RFSG. The PXIe-5654 queries its temperature sensor at
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
Syntax for Terminal Names
The syntax for terminal names is a unique identifier that refers to a physical terminal in your system.
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual
System Reference Clock
The PXI chassis supplies the PXI 10 MHz system Reference Clock signal (PXI_CLK10) independently to each peripheral slot. An independent buffer drives the clock signal to each peripheral slot. The buffer has a source impedance matched to the backplane and
- 1 minute read
- Last Updated2025-04-02
- Manual: NI RF Signal Generators User Manual