Signal Generator Overview

Rear Panel

14. Q-bar OUT

This female BNC connector (E8267D only) can be used with an internal baseband generator (Option 601/602) to output the complement of the analog, quadrature- phase component of I/Q modulation. On signal generators without Option 601/602, this female BNC connector can be used to output the complement of the quadrature- phase component of an external I/Q modulation that has been fed into the Q input connector.

Q- bar OUT is used in conjunction with Q OUT to provide a balanced baseband stimulus. Balanced signals are signals present in two separate conductors that are symmetrical relative to ground and are opposite in polarity (180 degrees out of phase). The nominal output impedance of the Q- bar OUT connector is 50 ohms, dc- coupled.

15. AC Power Receptacle

The ac line voltage is connected here. The power cord receptacle accepts a three- pronged power cable that is shipped with the signal generator.

16. GPIB

This GPIB interface allows listen and talk capability with compatible IEEE 488.2 devices.

17. 10 MHz EFC

This female BNC input connector (Options UNR/UNX only) accepts an external dc voltage, ranging from 5 V to +5 V, for electronic frequency control (EFC) of the internal 10 MHz reference oscillator. This voltage inversely tunes the oscillator about its center frequency (approximately 0.0025 ppm/V). The nominal input impedance is greater than 1 Mohms. When not in use, this connector should be shorted using the supplied shorting cap to assure a stable operating frequency.

18. ALC HOLD (Serial Prefixes >=US4722/MY4722)

This female BNC connector (E8267D only) is a TTL- compatible input that controls ALC action with bursted I/Q signals from an arbitrary waveform generator (AWG). A high signal allows the ALC to track the RF signal and maintain constant RF output level as the I/Q inputs vary. A low input signal allows the ALC to be held for a brief time (less than 1 second) and not track the RF signal. When driving the external I/Q inputs from an external arbitrary waveform generator supplying a bursted waveform, the ALC Hold line should be driven from a marker output from the AWG that is high when the bursted signal is at the proper level and low when the bursted signal is not at the proper level Damage levels are > 5.5 V and < 0.5 V.

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Agilent Technologies E8267D PSG, E8257D PSG AC Power Receptacle, Gpib, MHz EFC, ALC Hold Serial Prefixes =US4722/MY4722

E8267D PSG, E8257D PSG specifications

Agilent Technologies, a recognized leader in electronic measurement and communications solutions, offers a comprehensive range of signal generators, including the E8257D PSG (Pulsed Signal Generator) and E8267D PSG. These instruments are engineered to meet the demanding requirements of wireless communication, aerospace, defense, and various research applications.

The E8257D PSG is known for its versatility and reliability. It operates within a frequency range of 250 kHz to 40 GHz, making it suitable for a wide array of applications, from signal generation to vector modulation. With an output power capability of up to +30 dBm, it delivers high-quality signals with exceptional precision. Its low phase noise performance is especially critical for applications such as radar and communication system testing, where signal integrity is paramount.

One of the standout features of the E8257D is its advanced modulation capabilities, including analog and digital modulation schemes. This flexibility allows engineers to simulate real-world communications environments accurately. The PSG also features a built-in arbitrary waveform generator that enables users to create complex waveforms tailored to specific testing needs, providing a significant advantage in research and development.

On the other hand, the Agilent E8267D PSG is designed to cater to the needs of users requiring a combined signal generation and analysis solution. With the capability to generate signals from 250 kHz to 67 GHz, the E8267D is ideal for millimeter-wave applications, as well as testing next-generation wireless technologies.

This model includes features such as enhanced phase noise performance and faster switching speed, which are crucial for signal integrity in sophisticated networks. The instrument's intuitive user interface and powerful software integration facilitate effortless operation and automation, thereby improving workflow efficiency.

Both the E8257D and E8267D PSG instruments incorporate cutting-edge technologies such as low-noise microwave and RF components, as well as digital signal processing capabilities. They provide users with enhanced accuracy and reliability in their measurements.

In summary, Agilent Technologies' E8257D and E8267D PSG signal generators represent the pinnacle of precision in signal generation technology. With their extensive feature sets, advanced modulation capabilities, and robust performance specifications, these instruments are invaluable tools for engineers and researchers working across various high-tech industries.