The HP/Agilent 5348A is a dual-function microwave instrument combining frequency counter and power meter capabilities in a single platform. It spans 10 Hz to 26.5 GHz for frequency measurement and supports power characterization from 0 MHz to 26.5 GHz across -70 dBm to +20 dBm. Built for laboratory, production, and field service use, it delivers high-resolution counting with selectable 1 Hz to 10 kHz resolution and precise power measurement through compatible HP 8480 series sensors.
– Technical Specifications
Frequency Counter
• Range: 10 Hz to 26.5 GHz (Input 1); 10 Hz to 525 MHz (Input 2)
• Resolution: 1 Hz to 10 kHz (selectable)
• Sensitivity: -35 dBm (1 Hz or 10 kHz resolution); Input 2 requires 25 mV rms (15 mV rms typical)
• Tracking Speed: 1 MHz/sec (1 Hz resolution); 1 GHz/sec (10 kHz resolution)
• Acquisition Time: <125 ms (1 Hz resolution); 6 dB above interference within 500 MHz, >20 dB above interference from 500 MHz to 26.5 GHz
Power Meter
• Frequency Range: 0 MHz to 26.5 GHz (sensor dependent)
• Power Range: -70 dBm to +20 dBm (sensor dependent)
• Dynamic Range: 50 dB in 10 dB steps
• Resolution: 0.01 dB (logarithmic); 0.1% of full scale (linear)
• Accuracy: ±0.02 dB (logarithmic); ±0.5% (linear)
• Zero Set: ±5% of full scale on most sensitive range, decreasing by factor of 10 per higher range
• Auto Filter: Selects averaging automatically per selected range
– Key Features
• Dual measurement capability eliminates need for separate instruments
• Modulation tolerant: handles any AM index; supports FM up to 10 MHz
• Input 2 impedance: 1 MΩ (10 Hz to 80 MHz) or 50 Ω (10 MHz to 525 MHz)
• Fast frequency acquisition supports dynamic signal tracking
– Compatibility & Integration
Supports HP 8480 series power sensors: 8481A, 8481D, 8484A, 8485A.
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