The Keysight (formerly Agilent HP) 5352B is a high-performance 40 GHz CW microwave frequency counter designed for fast, precise measurements across a wide range from 10 Hz to 40 GHz (extendable to 46 GHz with Option 005). Featuring microwave components integrated on a single hybrid GaAs circuit, the 5352B offers outstanding sensitivity, fast acquisition times, robust FM tolerance, and rapid tracking of frequency drift. With automated amplitude discrimination, math scaling, and comprehensive GPIB programmability, the 5352B is ideal for demanding microwave test environments, VCO testing, and automated systems integration.

Specifications

Channel 1 Input (Low Frequency)

ParameterValue
Channel 1 Frequency Range10 Hz - 525 MHz
Channel 1 Connector TypeBNC female
Channel 1 Sensitivity10 Hz to 525 MHz: 25 mVrms

Channel 2 Input (Microwave)

ParameterValue
Channel 2 Frequency Range500 MHz - 40 GHz (46 GHz with Option 005)
Channel 2 Input Impedance50 Ω nominal
Channel 2 Connector TypePrecision 2.4 mm male

Measurement & Resolution Capabilities

ParameterValue
Frequency Resolution1 Hz, 10 Hz, 100 Hz, 1 kHz, 10 kHz, 100 kHz, 1 MHz (selectable)
Least Significant Digit (LSD)1 Hz to 1 MHz

Timebase & Reference Oscillator

ParameterValue
Internal Nominal Frequency10 MHz
External Reference Input Frequency1, 2, 5, or 10 MHz
External Reference Input Level1.5 Vp-p minimum into 1 kΩ
Reference Output Frequency10 MHz

Acquisition & Modulation Tolerance

ParameterValue
Acquisition Time (Manual Mode)< 20 ms
Tracking Speed1 GHz/second
FM Tolerance (Auto Mode)20 MHz peak-to-peak
FM Rate (Modulation Frequency)10 Hz to 10 MHz
AM ToleranceAny modulation index provided the minimum signal level is within sensitivity

System Interfaces & Auxiliary Outputs

ParameterValue
GPIB Interface CapabilitiesSH1, AH1, T5, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1, C0, E1

Physical & Environmental Specifications

ParameterValue
Operating Temperature Range0 °C to 50 °C
Rack Mount Height2U (EIA standard)
Net Weight10 kg (22 lb)

Ordering Options & Hardware Configurations

ParameterValue
Option 005 Frequency ExtensionExtends maximum frequency to 46 GHz
Option 006 Rear Panel ConnectorsMoves input connectors to the rear panel

Power Requirements

ParameterValue
AC Input Frequency47.5 Hz - 440 Hz (100 / 120 V AC), 47.5 Hz - 66 Hz (220 / 240 V AC)
Standby Power OperationOven timebase (Opt 001/010) remains energized in Standby mode when AC power is connected

Interfaces

ParameterValue
Command CompatibilityBackward compatible with HP 5350A, 5351A, and 5352A

Options

ParameterValue
Option 908 Rack Mount KitAdapts counter for installation in a standard 19-inch rack
Option 913 Rack Flange KitAdapts counter for installation in a standard 19-inch rack with front handles

Environmental

ParameterValue
Operating AltitudeUp to 4,600 m (15,000 ft)
Storage AltitudeUp to 15,240 m (50,000 ft)

Technology

GaAs hybrid IC

Applications

Microwave frequency measurements, VCO characterization, transmitter testing, calibration