Agilent/Keysight 53147A

The Keysight 53147A is a multifunction microwave instrument combining frequency counter, power meter, and DC voltmeter in a single compact chassis. It delivers precise frequency measurements to 20 GHz, calibrated power assessment across a wide dynamic range, and DC voltage monitoring - three critical capabilities for ATE integration, telecommunications, aerospace, and defense test environments where space efficiency and measurement versatility are essential.

Technical Specifications

• Frequency range: 50 MHz to 20 GHz (CW microwave input); Channel 1: 10 Hz to 125 MHz


• Resolution: Selectable 1 Hz to 1 MHz


• Accuracy: ±1 LSD (Channel 1)


• Measurement time: 1/Resolution + 30 ms (typical, Channel 1) -# Power Meter


• Power range: −70 dBm to +44 dBm (sensor dependent)


• Resolution: 0.01 dB (log mode), 0.1% full scale (linear mode)


• Instrumentation accuracy: ±0.02 dB or ±0.5%


• Display modes: Absolute (dBm or Watts) or Relative (dB or %)


• Compatible sensors: Agilent 8480 series; models span 10 MHz to 50 GHz with power handling from 100 pW to 25 W


• Features graphical peaking meter for real-time power adjustment -# Digital Voltmeter


• DC voltage range: ±50 Vdc


• Resolution: 2 mV


• Accuracy: ±0.25% of reading ±10 mV

Key Features

• Three independent measurement channels in one instrument


• Switchable resolution from 1 Hz to 1 MHz for frequency measurements


• Wide dynamic range power measurement with factory-supported sensor ecosystem


• N-type, APC-3.5 mm, and 2.4 mm connector options via sensor selection


• Relative and absolute measurement modes for power and voltage


• Suitable for both manual test benches and automated test equipment architectures

Typical Applications

• Microwave link validation and maintenance


• RF power monitoring in transmitter systems


• Frequency stability verification in oscillator design


• Multi-point measurements in integrated test systems


• Aerospace and defense signal characterization

Compatibility & Integration The 53147A accepts Agilent 8480 series power sensors, including 8481 (10 MHz–18 GHz, N connector), 8485 (50 MHz–26.5 GHz, APC-3.5 mm), and 8487 (50 MHz–50 GHz, 2.4 mm) models. High-sensitivity variants extend measurement capability to −70 dBm. Integration with ATE systems benefits from compact form factor and three independently configurable measurement functions.