Tested Fluke 9640A Series RF Reference Source Multi Product Calibrator with 1 mHz to 4 GHz Frequency Range in Pre-Owned Condition
The Fluke 9640A Series RF Reference Source serves as the central component in high-capability RF calibration systems, typically reducing system costs by half. This versatile instrument replaces multiple signal sources and accessories while delivering exceptional performance for spectrum analyzer calibration and other RF testing applications.
- Replaces up to four signal sources including audio/function generators, RF signal sources, and low phase noise sources
- Eliminates need for separate power meters, sensors, step attenuators, filters, pads, couplers, and frequency counters
- Performs over 80% of tests required for high-performance spectrum analyzer calibration below 4 GHz
- Simplifies metrology with fewer error sources and uncertainty contributions
- Reduces system support costs with fewer instruments to calibrate and maintain
- Compact, robust design ideal for onsite calibration with lower transport costs
| Parameter | Specifications |
|---|---|
| Frequency Range | 1 mHz to 4 GHz |
| Frequency Resolution | 10 μHz |
| Frequency Accuracy | 0.05 ppm + 5 μHz |
| Level Range (50 Ω output) | -130 to +24 dBm to 125 MHz, 14 dBm at 4 GHz (leveled) |
| Level Resolution | 0.001 dB |
| Level Accuracy | 0.03 dB to 100 kHz, 0.05 dB to 128 MHz, 0.5 dB at 4 GHz |
| Attenuation Accuracy | 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 |
| 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 |
| 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 |
| Operating Temperature | 0 °C to 50 °C, 23 °C ± 5 °C for specified performance |
| Storage Temperature | -20 °C to +70 °C |
| Standard Interfaces | IEEE488.2 (GPIB) |
| GPIB Command Emulation | 9640A, 9640A-LPNX: HP3335 9640A-LPNX + Opt 8662/8663 GPIB: HP3335, HP8662A, HP8663A |
| Dimensions (HxWxD) | 146 mm x 433 mm x 533 mm (5.8 in x 17.0 in x 21.0 in) |
| Weight | 18 kg (40 lbs) |
The 9640A models are designed to match or exceed the performance and functionality of HP3335A and HP8662/3A in calibration systems. With HP3335A GPIB command emulation standard in both models and optional HP8662/3A emulation in the 9640A-LPNX, replacing obsolete products becomes a simple plug-and-play substitution.
Includes 17025 accredited report of calibration.
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