More Information
Features:
- Range of 1 mHz to 4 GHz
- Resolution of 10 uHz
- –60 dBc Harmonics, –70 dBc Spurious to 1 GHz
The Fluke 9640A Series RF Reference Sources are an RF reference that takes the central role and typically halves the cost of a high capability RF calibration system. Its unique features and performance enable it to replace up to four signal sources (from audio/function generators to RF signal and low phase noise sources), power meters and power sensors, step attenuators, filters, pads, couplers, and also a frequency counter with the 9600FC integrated counter option. For many spectrum analyzer models operating below 4 GHz, only the 9640A Series is required to perform their entire calibration.
The 9640A Series performs more than 80 percent of all the tests required during high performance spectrum analyzer calibration. For workload with frequency requirements beyond 4 GHz, an existing RF and microwave source can be used alongside the 9640A rf reference to address the few remaining higher frequency test points all controlled by MET/CAL software.
The features of the 9640A Series provide many benefits in spectrum analyzer calibration. They also make the 9640A ideal for other workload, including RF millivoltmeters, signal level meters, modulation analyzers, receivers, counter/timers and attenuator calibration. Reducing the number of instruments in a calibration system brings many benefits. Metrology is simpler with fewer error sources and uncertainty contributions to consider. System support costs are reduced, as there are fewer instruments to calibrate and maintain. A smaller, more compact and robust system with a dependable rf reference is also a practical onsite calibration solution with lower transport costs.
The 9640A models are designed to match or exceed the performance and functionality of the HP3335A and HP8662/3A in calibration systems. With HP3335A GPIB command emulation as standard in both 9640A models and optional HP8662/3A emulation in the 9640A-LPNX, replacing these popular but obsolete and difficult-to-maintain products becomes just a plug-and-play substitution. HP8662/3A GPIB command emulation is installed on the 9640A-LPNX as "try before you buy" temporary license for convenient and thorough compatibility testing.
The 9640A Series provides unrivalled level and attenuation accuracy, with high signal purity, low harmonic and spurious content. A rugged, precision leveling head delivers the 9640A signals directly to the unit under test, minimizing losses, noise, interference, and mismatch errors, and maintains the integrity of low-level signals-all through a single connection, and eliminating the need for power meters and sensors, step attenuators and filters required when using general purpose signal generators in calibration applications.
This unique "connect once, measure many" capability not only simplifies the calibration process but also greatly reduces the number of measurement error sources and uncertainty contributions. The standard 9640A and 9640A-LPNX models are supplied with a 50 ohm leveling head and the /75 models have both 50 ohm and 75 ohm leveling heads. The mainframe and heads are calibrated together as a system.
The 9640A-STD Fluke RF Reference Source may still be available for purchase and support from Artisan Technology Group beyond End-Of-Life (EOL) by the manufacturer (OEM).
Functions
Provides precision RF signal generation with high frequency stability and accuracy for calibrating RF test equipment, signal generators, and frequency counters. Generates continuous wave signals across multiple frequency bands with low phase noise and excellent spectral purity. Features programmable output power levels and modulation capabilities. Interfaces via GPIB, RS-232, or Ethernet for automated test system integration. Includes internal frequency references and temperature compensation for measurement traceability. Used as primary frequency standard in metrology laboratories and for verifying performance specifications of RF instruments.
Platforms
Generates RF signals for calibration and testing. Operates on a benchtop platform, utilizing a mains power supply (100-240VAC, 50/60Hz). Interfaces via GPIB, RS-232, and Ethernet for remote control and data transfer. Provides output frequencies from 10 kHz to 2.5 GHz. Supports amplitude, frequency, and phase modulation. Commonly used in metrology labs and for RF equipment manufacturing.
Applications
Provides precision RF reference signals for calibrating and verifying performance of RF test equipment, spectrum analyzers, signal generators, and communication receivers. Used in metrology laboratories for establishing traceability to national frequency standards. Generates stable CW signals across multiple frequency bands with high spectral purity and accurate power levels. Essential for validating measurement uncertainty in RF calibration systems and supporting accreditation requirements for testing facilities. Enables characterization of frequency response, linearity, and dynamic range in RF instrumentation.
Accessories
Requires mainframe 9640A RF Reference Source mainframe chassis for operation. Connectors include: rear panel BNC connectors for RF output (50 ohm, female, standard BNC), a GPIB interface (IEEE-488, 24-pin micro ribbon connector) for control and programming, and a 10 MHz reference input/output SMA connectors for frequency reference input and output. Also includes a 9-pin D-sub for remote control. Standard 19-inch rackmount compatible chassis.
Interfaces
Four type-N female RF connectors (RF Output, Leveled Output, Modulation Input, Frequency Counter); nine-pin D-sub male GPIB/IEEE-488 interface for remote control; RJ45 Ethernet port; type-B USB device port; 3-pin IEC power connector with voltage selector; front panel LCD display with keypad interface; compatible with 9600FLT series filter accessories using type-N connections; accepts external 10 MHz reference via BNC connector.
Specifications
High-performance precision RF reference source delivering exceptional calibration capability from -130 dBm to +24 dBm across 4 kHz to 4 GHz. Features amplitude and modulation functionalities with superior accuracy, resolution, and stability. Provides precise leveled sine waves with AM, FM, and phase modulation options. Integrates automated processes for spectrum analyzer and receiver calibration through GPIB interface. Incorporates internal self-calibration systems with reference frequency outputs. Functions as complete solution for RF calibration and metrology applications while maintaining traceability to primary standards.
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Fluke 9640A-STD RF Reference Source Specs
| General |
| Manufacturer | Fluke |
| Model | 9640A-STD |
| Condition | Used and in Excellent Condition |
| Product Family | 9640A Series |
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Artisan Scientific Corporation dba Artisan Technology Group is not affiliated with or a distributor for Fluke. The depiction, description, or sale of products featuring names, trademarks, brands, and logos is for identification and/or reference purposes only and does not indicate any affiliation with or authorization by any rights holder.
RF Reference Source Price & Specs