Agilent HP 5352A Microwave Frequency Counter

The HP 5352A is a CW microwave counter with a measurement range of 10 Hz to 40 GHz. The counter combines high performance measurements with simple, easy-to-use operating procedures. The 5352A is controlled by a single microprocessor that interacts with the counting circuitry to generate data, compute, display measurements, and manipulate measurement data.

All measurement modes are selectable via 17 pushbutton keys on the front panel. Selectable functions include Sample Rate and Resolution control for the various measurement modes, and Math functions, such as Offset and Scale, for data manipulation. Additional power and convenience are provided by user-callable test and diagnostic functions, which can be used for troubleshooting, and to obtain additional measurement information. The counter is equipped with memory for saving the front panel setup when the counter is set to Standby mode. All display functions are performed by an LCD, which contains 24 alphanumeric characters (including function annunciators) for displaying both messages and measurement data.

Full HP-IB programmability is a standard feature of the 5352A frequency counter. The HP-IB interface provides remote control of measurement functions and data output. All front panel features are available with the HP-IB.

Input 1

• Frequency range: 500 MHz to 40 GHz
• Sensitivity (full operating environment)
  • 500 MHz to 12.4 GHz: -25 dBm
  • 12.4 GHz to 20 GHz: -25 dBm
  • 20 GHz to 26.5 GHz: -25 dBm
  • 26.5 GHz to 40 GHz: dBm = 0.741 f(GHz) -44.6
• Maximum input: +7 dBm
• Damage level: +25 dBm, peak
• Impedance: 50 Ω, nominal
• SWR
  • 500 MHz - 10 GHz: Typically, <2:1
  • 10 GHz - 20 GHz: Typically, <3:1
  • 20 GHz - 26.5 GHz: Typically, <3:1
  • 26.5 GHz - 40 GHz: Typically, <3.5:1
• Coupling: DC to 50 Ω termination, AC to instrument
• Accuracy: ±1 count ±time base error x frequency
• Resolution: Selectable 1 Hz to 1 MHz
• Connector: APC-3.5 male with collar, SMA compatible
• Modes of operation: Automatic, manual
• FM tolerance
  • Maximum deviation: 12 MHz p-p
  • Maximum FM rate: 10 MHz
• AM tolerance: Any modulation index as long as the minimum signal level is not less than the sensitivity specification
• Automatic amplitude discrimination: Automatically measures the largest signal present, as long as that signal is >6 dB above any signal within 500 MHz or >20 dB above any signal within 500 MHz to 40 GHz
• Acquisition time
  • Automatic mode: Normal FM rate is <200 ms, low FM rate is <1300 ms
  • Manual mode: <40 ms

Input 2

• Frequency range: 10 Hz to 525 MHz
• Mode of operation
  • 50 Ω: 10 MHz to 525 MHz
  • 1 MΩ: 10 Hz to 80 MHz
• Impedance: Selectable 1 MΩ nominal shunted by <70 pF or 50 Ω nominal
• Maximum input
  • 50 Ω: +10 dBM
  • 1 MΩ: 1 Vrms
• Coupling: AC
• Connector: Replaceable fuse, Type BNC female

General

• Data output
  • Automatic mode: ~10 readings/sec at 1 kHz resolution
  • Manual mode: >80 readings/sec at 10 kHz resolution
• Sample rate: Variable from <50 ms between measurements to HOLD, which holds the display indefinitely or until Trigger occurs
• Sleep mode: Input 1 emissions reduced to <-70 dBm typical when sleep mode or Input 2 is selected
• IF output: Rear panel BNC provides 30 - 110 MHz down-converted microwave signal at >-20 dBm into 50 Ω, AC coupled
• TCXO time base crystal frequency: 10 MHz
• Options
  • 001: Oven oscillator timebase
  • 010: High stability timebase
• HP-IB interface for programming functions and diagnostics 

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