Fluke 9640A RF Reference Source

The Fluke 9640A RF Reference Source is meticulously engineered to streamline RF calibration, significantly enhance productivity, and reduce operational costs. As the pioneering RF calibrator that amalgamates level precision, dynamic range, and frequency capability into a single cohesive unit, the Fluke 9640A stands out in the realm of RF calibration instruments.

Versatile Calibration Capabilities

Ideal for calibrating a diverse range of RF test equipment, the Fluke 9640A can proficiently handle spectrum analyzers, modulation meters, RF power meters, measurement receivers, and frequency counters, among others. With its integrated signal leveling and attenuation, this instrument simplifies the RF calibration process, effectively replacing multiple conventional devices like level generators and step attenuators.

Wide Frequency Range

The Fluke 9640A accommodates an expansive frequency coverage from 10 Hz to an impressive 4 GHz, providing outstanding level accuracy of 0.05 dB. It generates a pure sinusoidal signal with minimal harmonic and spurious content, ensuring reliability across various RF applications while eliminating inconsistencies between different sensor types.

Precision in Design

Featuring a rugged precision leveling head, the 9640A ensures direct signal delivery to the unit under test (UTT), maintaining signal precision and noise immunity across a dynamic range of +24 dBm to -130 dBm. The standard 50 ohm leveling head can be optionally upgraded to a 75 ohm head, enabling versatile calibration for workloads requiring both 50 and 75 ohm inputs.

User-Friendly Interface

Designed to optimize calibration laboratory tasks, the Fluke 9640A incorporates dedicated function keys and context-sensitive softkeys alongside a vibrant color display. Users can effortlessly set level or frequency step sizes and view calculated UUT errors, simplifying documentation processes essential for calibration certification and quality assurance.

Integrated Modulation Features

Equipped with internal modulation capabilities, the Fluke 9640A is perfect for applications that require precise modulation, such as modulation analyzer calibration and spectrum analyzer testing with AM techniques. Frequency modulation rates reach up to 300 kHz, alongside amplitude modulation depths of up to 99% at rates up to 200 kHz, eliminating the need for additional external function generators.

Advanced Sweep Functions

The 9640A’s built-in sweep functions simplify frequency response testing of legacy spectrum analyzers and filters, enhancing the efficiency of RF application testing.

External Frequency Reference Input

For applications demanding high clock accuracy, the selectable external frequency reference input on the rear panel allows output locking to an external reference, such as the Fluke 910R Rubidium Standard. Additionally, the frequency reference output enables the UUT to be frequency-locked to the internal reference clock, mitigating frequency offset errors.

Performance Beyond Comparison

The Fluke 9640A RF Reference Source is designed to meet and surpass the performance of the now-discontinued HP 3335A Synthesizer/Level Generator and the HP 8662A/HP 8663A low phase noise synthesizer. It features a GPIB command interpreter capable of emulating these legacy systems, ensuring compatibility and ease of integration into existing calibration setups.

Experience the future of RF calibration with the Fluke 9640A – where precision meets efficiency.