We buy, sell and rent general purpose, optical and RF test and measurement equipment. We pay top dollar for your unwanted, surplus or defective gear. Let us make you an offer on your new or used Agilent, Tektronix, Anritsu, Fluke, Rohde & Schwarz and IFR instruments.
The Fluke 9640A RF Reference Source has been designed to simplify RF calibration while improving productivity and lowering cost. The Fluke 9640A Reference Source is the first RF calibrator to combine level precision, dynamic range and frequency capability in a single instrument. It can be used to calibrate a broad range of RF test equipment including spectrum analyzers, modulation meters and analyzers, RF power meters and sensors, measurement receivers, frequency counters and attenuators. With built-in signal leveling and attenuation, the Fluke 9640A provides the frequency range and precision required to replace many commonly used RF calibration devices including level generators, RF signal generators, power meters and sensors, step attenuators and function generators.
The Fluke 9640A is supported by a range of common RF workload procedures within the Fluke MET/CAL? Plus Calibration Measurement Software, allowing quick automation of the calibration process while simplifying the documentation requirements for quality standards and tracking assets.
Designed to handle the broadest portion of the RF calibration workload, the Fluke 9640A provides frequency coverage from 10 Hz up to 4 GHz with a best level accuracy of 0.05 dB. It outputs a pure sinusoidal signal with low harmonic and spurious content, helping eliminate differences between the wideband/narrowband and peak/RMS sensors without requiring additional external filters.
The Fluke 9640A also features integrated signal leveling and attenuation within its rugged precision leveling head, eliminating the need to use separate, often difficult-to-automate step attenuators. The leveling head delivers signals directly to the unit under test (UTT), maintaining signal precision and noise immunity throughout a +24 dBm to -130 dBm dynamic range to minimize losses, noise, mismatch errors and to maintain the calibrated integrity of the signal. The Fluke 9640A comes with a 50 ohm leveling head and has an option to add a 75 ohm head, which extends the instrument's capability to calibrate workload with 50 and 75 ohm inputs, a unique characteristic in modern signal sources.
Designed to simplify calibration laboratory applications, the Fluke 9640A features dedicated function keys, context-sensitive softkeys and a bright color display. Users may set a level or frequency step size and deviate the output to match specified target values while the Fluke 9640A displays the calculated UUT error for calibration certificate documentation.
The 9640A Reference Source’s internal modulation capability makes it suitable for applications that require precision modulation to be applied to the output signal, such as modulation analyzer calibration and spectrum analyzer sweep time testing using AM methods. You don’t need additional function generators as a low frequency modulation source – the 9640A delivers it all. Frequency modulation is available at rates up to 300 kHz for applications such as modulation analyzer testing. Amplitude modulation is available at depths of up to 99 % and rates up to 200 kHz.
RF applications often require a frequency sweep. The 9640A’s sweep functions simplify the application of manual legacy spectrum analyzer frequency response testing, as well as filter response.
Selectable external frequency reference input is available on the rear panel of the 9640A. The input allows you to lock the frequency output to an external reference, such as the Fluke 910R Rubidium Standard, for applications where high clock accuracy or use of a common reference frequency is important. The frequency reference output allows a UUT to be frequency locked to the 9640A internal reference clock. This configuration is often required to reduce frequency offset errors that may occur between the reference source and the UUT.
Summary specifications |
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| Frequency specifications | Level specifications (50 Ω output, see extended specifications for 75 Ω) |
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| Range | 1 mHz to 4 GHz | -130 to +24 dBm to 125 MHz, 14 dBm at 4 GHz (leveled) |
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| Resolution | 10 uHz | 0.001 dB | |
| Accuracy | 0.05 ppm + 5 uHz | Down to -48 dBm 0.03 dB to 100 kHz, 0.05 dB to 128 MHz, 0.5 dB at 4 GHz
10 MHz to 128 MHz |
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| Attenuation | 0.02 dB to 55 dB, 0.15 dB at 110 dB | ||
| VSWR | ≤500 MHz: ≤1.1, ≤1 GHz: 1.2, ≤3 GHz: 1.3, ≤4 GHz: 1.4 |
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| Harmonics and spurious | –60 dBc harmonics, –70 dBc spurious to 1 GHz | ||
| Phase noise at 1 GHz | 9640A: –122 dBc/Hz, typical, at 10 kHz offset 9640A-LPNX: –138 dBc/Hz, typical, at 5 kHz to 100 kHz offset |
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| Modulation | AM, FM, PM, internal and external. Frequency pull and external leveling. | ||
| Frequency sweep | 1 mHz to 4 GHz. Linear or Logarithmic. Stop-Start or Center-Span. | ||
| Frequency counter | Optional internal 50 MHz frequency counter | ||
| Temperature | Operating: 0 °C to 50 °C, 23 °C ± 5 °C for specified performance Storage: -20 °C to +70 °C |
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| Standard interfaces | IEEE488.2 (GPIB) | ||
| GPIB command emulation | 9640A, 9640A-LPNX: HP3335 9640A-LPNX + Opt 8662/8663 GPIB: HP3335, HP8662A, HP8663A |
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| Calibration documentation | 17025 accredited report of calibration included | ||
| Dimensions (HxWxD) | 146 mm x 433 mm x and 533 mm (5.8 in x 17.0 in x 21.0 in) Industry-standard 19 in (483 mm) rack mounting when fitted with Y9600 rack mounting kit | ||
| Weight | 18 kg (40 lbs) | ||
This unit is in excellent condition, has been fully tested and is guaranteed functional. It comes with a 14 day right of return should it not perform to your expectations. Please review pics and text carefully before bidding to verify accuracy of description. If you don't see it in the pictures, it is not included.
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Need your unit calibrated by an ISO 17025 accredited lab prior to shipment? Not a problem. We work with numerous calibration and repair companies that can provide your required service at competitive prices.
Spaulding Surplus, LLC was established in 2002 and we pride ourselves on sustaining an expansive and diverse inventory of high value test equipment, in stock and ready to ship. We strive to exceed our customers expectations by providing quality general purpose electronic test and measurement equipment at the absolute lowest prices around. Our equipment is sourced from a variety of manufacturers including Agilent/HP, Fluke, Tektronix, Rohde & Schwarz, LeCroy, Anritsu, Advantest, Aeroflex/IFR, ILX Lightwave, JDSU, Wavetek, etc. We are also dedicated to providing fair and competitive bids for your unused test equipment and excess inventory. WHY PAY MORE FOR THE SAME EQUIPMENT?
We accept payment by company check, bank transfer and Paypal (for items valued below $1500 USD). Payment must be received within 5 days of close of auction. Our mailing address is below and our bank info can be forwarded upon request. Spaulding Surplus 12829 Landale Street Studio City, CA 91604.
All instruments are professionally packed and shipped via UPS GROUND with full insurance. We typically ship within the continental US only (please no PO Boxes) unless other arrangements have been made with the buyer. International customers may provide their UPS, DHL or FedEx account for international shipments. Items will be shipped within 7 business days of payment.
All items sold on Ebay come with a standard 30 day right of return warranty from the date of receipt, unless otherwise specified in the auction details. Payment in full is required prior to shipment. Buyers are required to notify us immediately if an instrument arrives damaged, and must keep all boxes and packing materials in case a UPS damage inspection is necessary. An extended warranty of 30 days is available for all direct purchases from Spaulding Surplus, LLC and established customers purchasing directly may qualify for net 30 payment terms with PO required prior to shipment.
All Ebay items can be returned for a full refund within 30 days of purchase should they not function as intended, unless they are being sold AS IS with known defects. Spaulding Surplus, LLC shall not be held liable for any damages resulting from buyer/operator negligence, or the improper use of its equipment, nor does it warrant their suitability for any specific application or project. The verification of product capability is the sole responsibility of the buyer. PO's and purchases cancelled due to insufficient instrument capability, buyer's remorse or loss of order are always subject to a 20% restocking fee. A complete evaluation is required for any instrument returned under warranty, and refunds are not issued until said evaluation has been completed by an ISO 17025 accredited calibration lab. WE KINDLY REQUEST THAT BUYERS CONTACT US FIRST SHOULD THERE BE ANY PROBLEMS WITH THE ITEM PURCHASED, RATHER THAN FILING A "NOT AS DESCRIBED" CLAIM WITH EBAY OR IMMEDIATELY LEAVING NEGATIVE FEEDBACK. WE HAVE BEEN IN BUSINESS FOR OVER 15 YEARS AND ALWAYS STRIVE FOR PERFECT FEEDBACK AND INTEND TO PROVIDE QUALITY EQUIPMENT AND EXCELLENT CUSTOMER SERVICE TO ALL OF OUR CUSTOMERS. IF YOU EVER HAVE A PROBLEM WITH A TRANSACTION WE WILL MAKE IT RIGHT!
Spaulding Surplus, LLC prides itself on sustaining an expansive and diverse inventory of high value test equipment, in stock and ready to ship. We strive to exceed our customers expectations by providing quality general purpose electronic test and measurement equipment at the absolute lowest prices around.
