The HP/Agilent 5347A is a dual-function microwave counter and power meter operating to 20 GHz, combining frequency measurement and power analysis in a single portable instrument. Designed for telecommunications, radar, and RF/microwave testing environments, it delivers both benchtop precision and field-service durability through a straightforward operator interface and rugged mechanical design.
Technical Specifications
Frequency Counter — Input 1 (Power Meter/Counter)
• Frequency range: 10 Hz to 20 GHz
• Sensitivity: −32 dBm (−35 dBm typical) from 500 MHz to 12.4 GHz; −27 dBm (−32 dBm typical) from 12.4 GHz to 20 GHz
• Maximum input: +7 dBm
• Damage level: +25 dBm peak
• Connector: N(f), AC-coupled
• Resolution: 1 Hz or 10 kHz, selectable
• Accuracy: ±1 LSD ± time base error × frequency
• Acquisition time: <125 ms at 1 Hz resolution
• Tracking speed: 1 MHz/sec at 1 Hz resolution
• Automatic amplitude discrimination: ≥6 dB above interfering signals within 500 MHz; ≥20 dB above signals from 500 MHz to 20 GHz (typical)
Frequency Counter — Input 2 (Counter Only)
• Frequency range: 10 Hz to 525 MHz
• Sensitivity: 25 mV rms (15 mV typical)
• Impedance: 1 MΩ nominal (<70 pF shunt, 10 Hz–80 MHz); 50 Ω nominal (10 MHz–525 MHz)
• Resolution: 1 Hz or 10 kHz, selectable
• Gate time: minimum 1 ms
Power Meter
• Frequency range: 10 MHz to 20 GHz (sensor-dependent)
• Power range: −70 dBm to +20 dBm (100 pW to 100 mW)
• Dynamic range: 50 dB in 10 dB steps
• Display units: Watts, dBm
• Resolution: 0.01 dB (logarithmic); 0.1% full scale (linear)
• Accuracy: ±0.02 dB or ±0.5%; zero set ±0.5% full scale
Time Base
• Internal; oven timebase available as option
• Operating temperature range: 0° to 50°C (internal); 0° to 55°C (external timebase)
– Key Features
• Supports HP 8481A, 8481D, 8484A, and 8485A power sensors
• Selectable resolution for improved speed or precision trade-off
• Maximum FM rate: 10 MHz
• Maximum frequency deviation: 20 MHz peak-to-peak (automatic mode)
– Typical Applications
• Telecommunications system verification
• Radar signal characterization
• RF and microwave component testing
• Field service and bench measurement
