Condition: Used — Excellent Condition

Used Keysight U7227C USB preamplifier in excellent condition with minimal usage, fully working. Supplied complete with a Huber+Suhner Sucoflex 103EA high-performance microwave cable assembly, making this a ready-to-use system sensitivity enhancement solution.

Included with this unit:
• Keysight U7227C USB preamplifier
• Huber+Suhner Sucoflex 103EA microwave cable assembly

The Keysight U7227C is a USB-powered preamplifier operating from 100 MHz to 26.5 GHz, designed to increase signal analyser sensitivity by reducing instrument noise figure for measuring low-level signals. When connected to a Keysight X-Series signal analyser, the preamplifier automatically configures the instrument to detect the specific unit connected and downloads embedded calibration data — including gain, noise figure, and S-parameters — via USB plug and play. This provides accurate correction data and more repeatable measurement results. Temperature-compensated automatic gain correction further enhances accuracy across operating conditions. Powered entirely via USB, the U7227C eliminates the need for an external power supply and is suited to both benchtop use and remote front-end field deployments.

Frequency Range: 100 MHz to 26.5 GHz
Gain (100 MHz to 26.5 GHz): > 16.1 + 0.26F dB (F = frequency in GHz); typical ~23 dB
Noise Figure (100 MHz to 4 GHz): < 6 dB
Noise Figure (4 to 6 GHz): < 5 dB
Noise Figure (6 to 18 GHz): < 4 dB
Noise Figure (18 to 26.5 GHz): < 5 dB
Power Supply: USB bus-powered (no external supply required)
Calibration Data: Embedded gain, noise figure, and S-parameters
Temperature Compensation: Automatic gain correction with temperature compensation
Operating Temperature: 0 °C to +55 °C
Storage Temperature: -40 °C to +70 °C
Connector (included adapter): 3.5 mm (f) to Type-N (m)
Compatibility: Keysight X-Series signal analysers (PXA, MXA, EXA, CXA)
Form Factor: Compact, portable, rugged
Firmware Version: D.6
Applications: Noise figure measurement, low-level signal detection, RF/microwave system testing, remote front-end field applications

Keysight USB Preamplifiers U7227/8 Series Technical Overview (covers U7227C, 100 MHz–26.5 GHz): Download PDF

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