Agilent / HP 5071A

Cesium standard · 5 MHz and 10 MHz outputs · 1 PPS · ±1 × 10⁻¹² accuracy

Used, calibrated
Cesium beam standard
5 and 10 MHz outputs
1 PPS output

$14,950

● In stock · ships from Diamond Bar, California

FrequencySee specs

CalibrationFresh partial calibration

ConditionGrade B · normal wear

Warranty30-day warranty

✓ Inspected and function-tested before it ships
✓ Photos are of this exact unit
✓ Packed with care, insured and tracked

Overview

The Agilent/HP 5071A is a cesium beam primary frequency standard with 5 MHz and 10 MHz outputs and a 1 PPS timing output. This unit is used and calibrated, with a healthy cesium tube, and can serve as a lab's master timebase.

Key specifications

Manufacturer	Agilent / HP
Model	5071A
Type	Cesium beam primary frequency standard
Accuracy	±1 × 10⁻¹² (standard tube)
Environmental stability	<1 × 10⁻¹³ frequency change (standard tube)
Long-term stability	≤5 × 10⁻¹⁴ for 5-day averaging (standard tube)
Main outputs	Ports 1 and 2, each settable to 5 MHz or 10 MHz from the front panel or by remote command
Warm-up	Automated, 30 minutes to full specifications
Frequency settability	Range ±1 × 10⁻⁹, resolution 6.3 × 10⁻¹⁵
Operating temperature	0 to 55 °C
Net weight	30 kg
Condition	Grade B · normal wear · Used, calibrated
Stock number	EB-19344

Condition & service

Overall	Used; display bright, buttons work easily
Testing	Fully tested
Calibration	Fresh partial calibration, NIST-traceable, 2-year cert and sticker

Good to know

The two main outputs are within spec and harmonic-free at 10 MHz. The divided outputs show high harmonics, a common issue with this model; we can supply a filter for the frequency you need.
Battery operation is available on request.