The HP/Agilent 53147A is a portable three-in-one instrument combining a 20 GHz microwave counter, power meter, and digital voltmeter. It consolidates field measurement capabilities across frequency, power, and DC voltage monitoring—eliminating the need for separate instruments on installation, maintenance, and ATE tasks. The counter spans 50 MHz to 20 GHz (CW), the power meter operates from -70 dBm to +44 dBm via Agilent 8480 series sensors, and the DVM monitors ±50 Vdc circuits. GPIB and RS-232 interfaces enable remote control and data logging. Optional battery power and a lightweight, bumper-protected enclosure support field deployment.
Technical Specifications
Microwave Counter
• Frequency range: 50 MHz to 20 GHz (CW microwave input)
• Channel 1: 10 Hz to 125 MHz
• Sensitivity: 40 mVrms (10–30 Hz); 25 mVrms (30 Hz–125 MHz)
• Maximum input: 2 Vrms
• Damage level: 120 V (dc + ac pk), linearly derated to 5 Vrms at 125 MHz
• Resolution: 1 Hz
• Accuracy: ±1 LSD
• Connector: BNC female, AC coupled
Power Meter
• Range: -70 dBm to +44 dBm (sensor dependent)
• Resolution: 0.01 dB (log mode); 0.1% full scale (linear mode)
• Accuracy: ±0.02 dB or ±0.5% (instrumentation)
• Supported sensors: Agilent 8480 series (8481A, 8481B, 8481D, 8481H, 8485A, 8485D, 8487A)
Digital Voltmeter
• Function: DC voltage
• Range: ±50 Vdc
Timebase
• Internal: TCXO (standard); Oven (Option 001)
– Key Features
• 1 second / 1 Hz resolution for precise frequency measurement
• Zero-set power reference with digital adjustment
• SCPI-programmable for automated test sequences
• Low-pass filter option (10 Hz to 50 kHz) on counter input
– Typical Applications
• Microwave link frequency verification and maintenance
• AGC circuit monitoring in receiver chains
• Telecom site power supply verification (-48 Vdc)
• Field antenna alignment and performance validation
– Compatibility & Integration
Connects via GPIB and RS-232. Compatible with Agilent 8480 series power sensors spanning 10 MHz to 50 GHz and power levels from 100 pW to 25 W.
