Keysight (Agilent)
Keysight (Agilent) 5071A
Primary Cesium Frequency Standard Frequency Standard Type
5 MHz and 10 MHz Frequency Output
±1 × 10⁻¹³ (factory setting) Accuracy
≤2 × 10⁻¹⁴ per month Long-Term Stability (Aging)
-100 dBc/Hz Phase Noise (10 MHz, 1 Hz offset)

| Attribute | Value |
|---|---|
| Frequency Standard Type | Primary Cesium Frequency Standard |
| Frequency Output | 5 MHz and 10 MHz |
| Accuracy | ±1 × 10⁻¹³ (factory setting) |
| Long-Term Stability (Aging) | ≤2 × 10⁻¹⁴ per month |
| Phase Noise (10 MHz, 1 Hz offset) | -100 dBc/Hz |
| Output Impedance | 50 Ohms |
| Operating Temperature Range | 0°C to 55°C |
| Power Requirements | 100–240 VAC, 47–63 Hz, 95 W typical |
| Cesium Beam Tube Life | Approximately 7 years (typical) |
| Form Factor / Dimensions | Rack-mountable, 3U, 425 mm × 133 mm × 497 mm (W × H × D) |
Keysight Technologies 5071A Options:
- 5071A - 001 - High-performance cesium beam tube
- 5071A - OB2 - One extra set of operating and programming documentation
- 5071A - OBW - Assembly-level service manual
- 5071A - 908 - Rack flange kit (for mounting when front handles are not to be used)
- 5071A - 913 - Rack flange kit (for use with front handles supplied with 5071A)
- 5071A - W30 - Warranty: Two additional years of "Return to Agilent" service on the electronics (total of three years of coverage)
- 5071A - W50 - Warranty: Four additional years of "Return to Agilent" service on the electronics (total of five years of coverage)
- 5071A - 048 - 48-Vdc Power
- 5071A - 104 - 1.544 Mbps, 100 Ω balanced, super frame (D4)
- 5071A - 105 - 1.544 Mbps, 100 Ω balanced, extended super frame (ESF)
- 5071A - 220 - 2.048 Mbps, 120 Ω balanced, common channel signaling
- 5071A - 221 - 2.048 Mbps, 120 Ω balanced, channel associated signaling
- 5071A - 222 - 2.048 Mbps, 120 Ω balanced, channel associated signaling with CRC4
- 5071A - 270 - 2.048 Mbps, 75 Ω unbalanced, common channel signaling
- 5071A - 271 - 2.048 Mbps, 75 Ω unbalanced, channel associated signaling
- 5071A - 272 - 2.048 Mbps, 75 Ω unbalanced, channel associated signaling with CRC4
| Model | 5071A |
|---|
The Keysight (Agilent) 5071A primary frequency standard offers frequency accuracy of 5 x 10⁻¹³ and long-term stability better than 1 x 10⁻¹⁴, ideal for calibration services.
With automatic startup, intuitive front-panel menu, and remote programmability, it is perfect for military, commercial, and advanced tracking systems.
Testwall can supply the used Keysight (Agilent) 5071A, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 5071A.





