The Tektronix 2246 is a 100 MHz, four-channel portable analog oscilloscope built for general-purpose electronic testing and design work. It combines fast acquisition with precise measurement capabilities, featuring 2 mV/div vertical sensitivity across a 2 mV/div to 5 V/div range and ±2% measurement accuracy on both vertical and horizontal axes. Channels 1 and 2 deliver full performance with ≤3.5 ns step response; Channels 3 and 4 support digital and trigger signals with limited deflection and coupling options. The instrument includes auto-level triggering with noise reject, HF reject, and LF reject modes to stabilize complex waveforms. A and B time bases span 0.5 s/div to 2 ns/div (with x10 magnification), supported by delayed sweep capability and ±2% horizontal accuracy. SmartCursors provide auto-tracking measurements of voltage, time, frequency, and phase. Hands-off voltmeter functions deliver DC, ±Peak, and P-P voltage readings with accuracies to ±0.3% of reading for DC and ±2% of reading for peak measurements.
Technical Specifications
Vertical System
• Bandwidth: 100 MHz
• Channels: 4 (Channels 1–2 full performance; Channels 3–4 limited deflection and coupling)
• Vertical Sensitivity: 2 mV/div to 5 V/div (11 steps, 1-2-5 sequence)
• Vertical Accuracy: ±2%
• Step Response (CH 1 & 2): ≤3.5 ns
• Bandwidth Limiting: 20 MHz available
• Display Modes: CH 1, CH 2, CH 3, CH 4, Add (CH 1 + CH 2), Invert (CH 2); alternate and chopped modes for all channels
Horizontal System
• A Sweep: 0.5 s/div to 20 ns/div (24 steps); x10 magnification extends to 2 ns/div
• B Sweep: 5 ms/div to 20 ns/div (21 steps); x10 magnification extends to 2 ns/div
• Delayed Sweep: Available in ALT and B modes
• Delay Time Range: 9.9 div of A sweep
• Delta Time Range: 0 to >10 div right of delay setting
• Horizontal Accuracy: ±2%
Triggering
• Source: CH 1, CH 2, CH 3, CH 4
• Coupling: DC, AC, Noise Reject, HF Reject, LF Reject
• Auto-Level Mode: Available
• Sensitivity: 0.25 div at 50 MHz (1.0 div at 150 MHz)
• Holdoff: 10:1 range
Measurement and Cursors
• SmartCursors: Auto-tracking voltage, time, frequency, phase measurements
• Voltmeter Functions: DC Volts, +Peak, -Peak, P-P Volts, Gated Peaks
• DC Volts Accuracy: ±0.3% of reading (±0.02 div)
• Peak and P-P Accuracy: ±2% of reading (±0.1 div), 20 Hz to 30 MHz
– Key Features
• Four-channel architecture with full-bandwidth primary channels
• Dual time base with independent delay capability
• Trigger holdoff for reliable multi-event capture
• Integrated cursor-based measurements eliminate manual calculation
• Portable form factor for field and lab deployment
– Typical Applications
• General analog circuit debugging and verification
• Digital signal timing analysis on Channels 3–4
• Power supply and clock signal characterization
• Educational and training environments
– Compatibility & Integration
Channels 1 and 2 accept standard passive probes and accessories rated to 100 MHz bandwidth. Channels 3 and 4 support trigger and logic-level signals.
