# Tektronix TDS6604 6 GHz Digital Storage Oscilloscope (Pre-Owned)

# Tektronix TDS6604 6 GHz Digital Storage Oscilloscope (Pre-Owned)

## Key Features At A Glance

-   Bandwidth from 4 GHz to 6 GHz across the series to capture fast leading-edge digital signals
-   20 GS/s real-time sample rate on 1 or 2 channels; 10 GS/s on 4 channels simultaneously
-   Four input channels with 50 Ω input impedance and TekConnect signal interconnect
-   GPIB (IEEE 488.2), USB, PS-2, LAN (10/100Base-T), serial and parallel interfaces for automation and networking
-   10.4 in. touch-sensitive color display with classic analog-style controls and MultiView Zoom
-   Open Windows environment with VISA, ActiveX, and plug-and-play drivers for LabVIEW and LabWindows
-   Jitter measurements to 0.7 psRMS via the series' trigger and acquisition performance and applied software
-   Optional serial communications mask testing and 32-bit serial pattern trigger (separate licensed options)

The Tektronix TDS6000 Series — comprising the TDS6604 and TDS6404 — is a family of digital storage oscilloscopes built for verification, debug, and characterization of sophisticated electronic designs. Each instrument pairs high-performance signal acquisition with classic analog-style controls, a large touch-sensitive display, and graphical menus, while open access to the Windows operating system enables customization and extensibility.

A digital storage oscilloscope captures fast electrical signals and displays them as voltage-versus-time waveforms, letting an engineer examine amplitude, timing, and signal shape. The TDS6000 Series is applied to the validation and characterization of high-speed digital designs, jitter and timing analysis, and the investigation of transient phenomena. Compliance mask tests support a wide range of computer and datacom standards, and a 32-bit serial trigger isolates pattern-dependent effects.

ValueTronics stocks and holds its own inventory in a 20,000 square-foot secure warehouse at 1675 Cambridge Drive in Elgin, Illinois. Every used unit we sell is inspected and functionally verified in-house before it ships, while new units ship factory-sealed exactly as received from the manufacturer. Operating since 1992, we match the right instrument and condition to each customer's application.

## Compare Other Models in This Series

The Tektronix TDS6000 Series brings high-performance signal acquisition, operational ease, and open connectivity to the verification, debug, and characterization of sophisticated electronic designs. The family is built around exceptional acquisition and trigger performance, a touch-sensitive interface, and an open Windows environment shared across its models.

Within the series, the TDS6604 and TDS6404 share the same four-channel architecture, 20 GS/s sample rate on one or two channels, display, and connectivity, differing principally in analog bandwidth and rise time.

Each model in the series is offered below as its own dedicated pre-owned product page with condition-matched pricing. Select the bandwidth tier that fits your application, then choose the pre-owned listing for that specific model.

The two models are distinguished by their bandwidth tiers: the TDS6604 provides 6 GHz analog bandwidth with a typical rise time of 70 ps, while the TDS6404 provides 4 GHz bandwidth with a 100 ps typical rise time. Channel isolation is specified to ≥20:1 at each model's full bandwidth — 6 GHz for the TDS6604 and 4 GHz for the TDS6404. The comparison table below summarizes these per-model figures.

Beyond bandwidth and rise time, the models share their core capabilities — four input channels, 20 GS/s real-time sampling on one or two channels, 10 GS/s on four channels, identical acquisition modes, and the same Windows-based analysis and networking platform. Each also ships with a different probe calibration and deskew fixture matched to the model (067-0484-xx for the TDS6604, 067-0405-xx for the TDS6404).

Model

Bandwidth

Rise Time

Max Real-time Sample Rate

**TDS6604**

6 GHz

70 ps

20 GS/s

TDS6404

4 GHz

100 ps

20 GS/s

Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below.

## Accessories Supplied

-   Accessory pouch
-   Front cover
-   Mouse
-   Quick reference
-   User reference
-   GPIB programmer's reference
-   TDS6000 Series product software CD-ROM
-   TDS6000 Series operating system restoration CD-ROM
-   Performance verification procedure PDF file
-   NIST, MIL-STD-45662A and ISO9000 calibration certificate
-   Power cord (specify power plug when ordering)
-   (4) TekConnect to SMA adapters (TCA-SMA)
-   Probe calibration and deskew fixture (067-0484-xx)

## Product Core & Specifications

Specification

Value

Vertical System

Rise Time (typical)

70 ps

Input Channels

4

Analog Bandwidth (-3 dB)

6 GHz

Input Impedance

50 Ω ± 2.5%

Input Sensitivity, 50 Ω

10 mV/div to 1 V/div

Vertical Resolution

8-Bit (> 11-Bit w/ averaging)

Max. Input Voltage, 50 Ω

Determined by TekConnect accessory

DC Gain Accuracy

2.5%

Offset Range

10 mV to 50 mV/div ± 0.5 V; 50.5 mV to 100 mV ± 0.25 V; 101 mV to 500 mV ± 5 V; 505 mV to 1 V/div ± 2.5 V

Channel Isolation

≥20:1 at 6 GHz; ≥80:1 at 1.5 GHz

Timebase System

Timebase Range

50 ps to 10 s/div

Timebase Delay Time Range

16 ns to 250 s

Channel-to-Channel Deskew Range

± 25 ns

∆Time Measurement Accuracy

(0.06/sample rate) + (2.5 ppm \*|reading|)RMS

Trigger Jitter (RMS)

7 psRMS

Long Term Sample Rate and Delay Time Accuracy

± 2.5 ppm over ≥100 ms interval

Acquisition System

Equivalent Time Sample Rate (max.)

1,000 GS/s

Real-time Sample Rate, 1 channel

20 GS/s, Record Length 250 k

Real-time Sample Rate, 2 channels (channel 1 with 3, channel 1 with 4, channel 2 with 3 or channel 2 with 4)

20 GS/s, Record Length 250 k

Real-time Sample Rate, 2 channels (channel 1 with 2 or channel 3 with 4)

10 GS/s, Record Length 125 k

Real-time Sample Rate, 3 or 4 channels

10 GS/s, Record Length 125 k

Acquisition Modes

Sample

Acquire sampled values

Peak Detect

Captures narrow glitches at all real-time sampling rates

Minimum Peak Detect Pulse Width

50 ps

Averaging

From 2 to 10,000 waveforms included in average

Envelope

From 2 to 2x10⁹ waveforms included in min-max envelope

Hi-res

Real-time boxcar averaging reduces random noise and increases resolution

Trigger System

Sensitivity, Internal DC Coupled

0.35 div DC to 50 MHz increasing to 1.5 div at 3 GHz (guaranteed); 2.5 div at 4 GHz (typical)

Sensitivity, External (auxiliary input)

250 mV from DC to 50 MHz increasing to 350 mV at 500 MHz

Main Trigger Modes

Auto, Normal and Single

Trigger Sequences

Main, Delayed by Time, Delayed by Events. All sequences can include separate horizontal delay after the trigger event to position the acquisition window in time

Trigger Level Range, Internal

± 12 divisions from center of screen

Trigger Level Range, External (auxiliary input)

± 8 V

Trigger Level Range, Line

Fixed at 0 V

Trigger Coupling

DC, AC (attenuate < 60 Hz), HF Rej (attenuate > 30 kHz), LF Rej (attenuates < 80 kHz), Noise Reject (reduce sensitivity)

Trigger Holdoff Range

250 ns minimum to 12 seconds maximum

Edge Trigger

Positive or negative slope on any channel or front panel auxiliary input. Coupling includes DC, AC, noise reject, HF reject and LF reject

Glitch Trigger

Trigger on or reject glitches of positive, negative, or either polarity. Minimum glitch width is 1.0 ns with 200 ps resolution

Width Trigger

Trigger on width of positive or negative pulse either within or out of selectable time limits (1 ns to 1 s)

Runt Trigger

Trigger on a pulse that crosses one threshold but fails to cross a second threshold before crossing the first again. Optional time qualification

Timeout Trigger

Trigger on an event that remains high, low, or either, for a specified time period, selectable from 1 ns to 1 s with 200 ps resolution

Transition Trigger

Trigger on pulse edge rates that are faster or slower than specified. Slope may be positive, negative or either

Setup/Hold Trigger

Trigger on violations of both setup time and hold time between clock and data present on any two input channels

Pattern Trigger

Trigger when pattern goes false or stays true for specified period of time. Pattern (AND, OR, NAND, NOR) specified for four input channels defined as HIGH, LOW or Don't Care

State Trigger

Any logical pattern of channels (1, 2, 3) clocked by edge on channel 4. Trigger on rising or falling clock edge

Optional Communications Trigger

Support for AMI, HDB3, BnZS, CMI, MLT3, and NRZ encoded communications signals. Select among isolated positive or negative one, zero pulse form or eye patterns as applicable to standard

Optional Serial Pattern Trigger

32-Bit serial word recognizer to 1.25 GBaud

Trigger Delay by Time

16 ns to 250 seconds

Trigger Delay by Events

1 to 10,000,000 Events

Waveform Measurements

Amplitude

Amplitude, High, Low, Maximum, Minimum, Peak-to-peak, Mean, Cycle Mean, RMS, Cycle RMS, Positive Overshoot, Negative Overshoot

Time

Rise time, Fall time, Positive Width, Negative Width, Positive Duty Cycle, Negative Duty Cycle, Period, Frequency, Delay

Combination

Area, Cycle Area, Phase, Burst Width

Histogram-related

Waveform count, Hits in box, Peak hits, Median, Maximum, Minimum, Peak-to-peak, Mean (µ), Standard Deviation (σ), µ + 1σ, µ + 2σ, µ + 3σ

Eye-pattern Related

Extinction Ratio (absolute, %, and dB), Eye Height, Eye Top, Eye Base, Eye Width, Crossing %, Jitter (peak-to-peak, RMS, and 6σ), Noise (peak-to-peak and RMS), S/N ratio, Cycle distortion, Q-factor

Waveform Processing/Math

Algebraic Expressions

Define extensive algebraic expressions including waveforms, scalars and results of parametric measurements e.g., (Integral (Ch1-Mean(Ch1))\*1.414)

Arithmetic

Add, subtract, multiply, divide waveforms and scalars

Calculus

Integrate, differentiate

Frequency Domain Functions

Spectral magnitude and phase, real and imaginary spectra

Vertical Units

Magnitude: Linear, dB, dBm; Phase: degrees, radians

Window Functions

Rectangular, Hamming, Hanning, Kaiser-Bessel, Blackman-Harris, Gaussian, Flattop2, Tek Exponential

Waveform Definition

As arbitrary math expressions

Display Characteristics

Display Type

Liquid crystal active-matrix color display

Display Size

211.2 mm (W) x 158.4 mm (H), 264 mm (10.4 in.) diagonal

Display Resolution

640 horizontal x 480 vertical pixels

> **Important:** Probes are not included in the price and should be ordered separately.

> **Important:** Please specify power plug when ordering (power plug options: Opt. A0 US, A1 Euro, A2 UK, A3 Australian, A5 Swiss, A99 No Power Cord, AC China).

> Usage tip: pair the oscilloscope with the Tektronix P7260 6 GHz active probe for full bandwidth at the probe tip, or the P7350 5 GHz differential probe for low-voltage differential signaling (LVDS) applications.

## About this Pre-Owned unit

This pre-owned unit is inspected and functionally verified in-house before it ships and is backed by our pre-owned warranty. To confirm its exact condition, firmware revision, installed options, or included accessories for your application before ordering, contact our Test Architects.

-   Warranty included
-   Functional verification included
-   Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data.
-   Note that unnecessary accessories may not be included (contact Test Architect to confirm).

ValueTronics supplies both new and used test and measurement equipment. New units ship factory-sealed, exactly as received from the manufacturer; every used unit is inspected and functionally verified in-house at our 20,000 sq ft secure facility in Elgin, Illinois before it ships. Our Test Architects can help you select the condition, calibration, and configuration that fit your application.

**Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.**

## Details

- **Price:** 0.0 USD
- **Vendor:** Tektronix
- **Type:** Dig Oscilloscope
- **Tags:** Dig Oscilloscope, Digital, Inc., Manufacturers, Model 6604, Oscilloscopes, Pre-Owned, product_manual_group_1, Product_used, TDS6604, Tektronix

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 0.00 USD | In stock |
| NIST Traceable | 0.00 USD | In stock |
| NIST Traceable with Full Data | 0.00 USD | In stock |
| ISO IEC 17025 Accredited | 0.00 USD | In stock |

## Images

- Tektronix TDS6604 6 GHz Digital Storage Oscilloscope (Pre-Owned)

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> Source: [ValueTronics](https://valuetronics.com/products/tds6604-tektronix-digital-oscilloscope-used)
> Updated: 2026-06-02