The Agilent 53148A is a three-in-one portable instrument combining a CW microwave frequency counter, true power meter, and DC digital voltmeter into a single compact unit. Designed for field service, microwave link installation and maintenance, and ATE systems where rack space is critical, it delivers microwave measurement capability to 26.5 GHz with integrated power analysis and voltage monitoring.
– Technical Specifications
Frequency Counter
• Two measurement channels
• Channel 1: 10 Hz to 125 MHz
• Channel 2 (Microwave): 50 MHz to 26.5 GHz CW
• Selectable resolution: 1 Hz to 1 MHz
• Accuracy: ±1 Least Significant Digit
• Measurement time (typical): 1/Resolution + 30 ms (Channel 1); 1/Resolution + Acquisition time + 30 ms (Channel 2)
• Acquisition time (typical): 150 ms/125 ms (FM Auto/FM Off) at 1 MHz FM rate with power meter off
• FM tolerance: 20 MHz peak-to-peak maximum at 10 MHz rate to 26.5 GHz (FM Auto); 1 MHz peak-to-peak at 10 MHz rate (FM Off)
• Amplitude discrimination: Automatically isolates signals >10 dB above adjacent signals separated by <75 MHz
Power Meter
• Type: True Power Meter
• Range: -70 dBm to +44 dBm (sensor-dependent)
• Resolution: 0.01 dB
• Basic instrument accuracy: 0.02 dB
• Graphical peaking meter for power adjustment
• Relative and offset reading modes
Digital Voltmeter
• DC measurement capability
• Range: ±50 Vdc
• Monitors AGC circuitry and power supplies
– Key Features
• LCD display with switchable backlight
• Averaging function for signal stabilization
• Compact form factor reduces test setup complexity
– Compatibility & Integration
Accepts Agilent/Keysight 8480 Series power sensors: 8481A/B/D, 8482A/B, 8484A, 11708A, 8485A/D, and 8487A for extended frequency and dynamic range coverage.
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