Agilent 5385A Frequency Counter, 10 Hz to 1 GHz

Frequency coverage allows measurements from 10 Hz to 1 GHz, with resolution of 9 digits per second. The 5385A incorporates a programmable alphanumeric display, accessible remotely via either HP-IB (standard).

• Channel A Characteristics
  Range: 10 Hz to 100 MHz
  Sensitivity: [MAIN LEVEL] off
  15 mVrms sine wave 50 Hz to 100 MHz
  25 mVrms sine wave 10 Hz to 50 Hz
  45 mV pk-pk 5 ns minimum pulse width
  Dynamic Range: 45 mV to 4 V pk-pk × attenuator setting.
  Coupling: AC
  Impedance:
  X1: 1 Mohm NOMINAL | | <25 pF
  X20: 500 kohm NOMINAL | | <25 pF
• Channel B Characteristics
  Fused input! (Front panel accessible)
  Range: 90 to 1000 MHz
  Sensitivity:
  10 mVrms (-27 dBm) 100-1000 MHz
  15 mVrms (-33 dBm) 90-100 MHz
  Dynamic Range: 10 mV to 7 Vrms (-27 to +30 dBm)
  Coupling: AC
  Impedance: 50 ohm NOMINAL

5385A Data sheet

5385A Manual Book