Tektronix 2465B Oscilloscope 400MHz 100% TESTED

The Tektronix 2465B is a four-channel, 400 MHz portable analog oscilloscope engineered for signal analysis in laboratory and field environments. It delivers real-time waveform capture with instantaneous response to dynamic signal conditions, leveraging analog circuitry for high-speed trigger rates. The instrument combines dual-range vertical sensitivity, variable time-base controls, and flexible input impedance selection to accommodate diverse measurement requirements across analog signal characterization.

Technical Specifications

Bandwidth & Vertical Performance

• Bandwidth: 400 MHz


• Channels: 4


• Vertical Sensitivity (CH 1 & 2): 2 mV/div to 5 V/div


• Vertical Sensitivity (CH 3 & 4): 100 mV/div, 500 mV/div


• Vertical Sensitivity Accuracy: ±2%


• With 10X probes

CH 1 & 2: 20 mV to 50 V/division; CH 3 & 4: 1 V or 5 V/division Time Base & Sweep

A Sweep Rate: 5 ns/div to 500 ms/div

B Sweep Rate: 50 ms/div to 5 ns/div

Maximum Resolution: 500 ps/div (with X10 magnification)

Timing Accuracy: 1%

Time Interval Resolution: 20 ps

Continuous Variable Timing: extends slowest A Sweep to 1.5 s/div Input Characteristics

Input Impedance: Switchable 1 MΩ ±5% (15 pF ±2 pF) or 50 Ω nominal

Input Coupling (1 MΩ): AC, DC, GND

Maximum Input Voltage (1 MΩ): 400 V DC + peak AC

Maximum Input Voltage (50 Ω): 5 Vrms average for 1 sec, ±50 V peak Trigger System

Trigger Sources: CH 1 or CH 2

Coupling Options: DC, AC, Noise Reject, HF Reject, LF Reject

Trigger Sensitivity (DC coupled, to 50 MHz): 0.35 div

Trigger Sensitivity (Noise Reject, to 50 MHz): ≤1.2 div

Trigger Sensitivity (HF Reject, DC to 30 kHz): 0.5 div

Trigger Sensitivity (LF Reject, 80 kHz): 0.5 div

Trigger Sensitivity (AC coupled, 60 Hz): 0.35 div

Above 50 MHz sensitivity increases to 1.5 div (DC, LF reject, AC)

Level Control (CH 1 & 2): ±18 × V/div setting

Level Control (CH 3 & 4): ±9 × V/div setting

Trigger Modes: Auto level, HF Reject, LF Reject, Noise Reject, TV sync

Key Features

• Auto setup and automatic measurements


• Front-panel setup storage and recall


• Cursor measurement capability for precision analysis


• Switchable input impedance for 1 MΩ and 50 Ω applications


• 100% factory tested

Typical Applications

• General-purpose analog signal characterization


• Time-domain waveform analysis


• DC and AC signal measurement


• Bandwidth-limited circuit testing up to 400 MHz