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Brand: Tektronix
Tektronix MDO34 3 Series 4-Channel Mixed Domain Oscilloscope
Description
MDO34 is the four-channel Tektronix 3 Series Mixed Domain Oscilloscope: an oscilloscope with a built-in 1 GHz spectrum analyzer input in a case 148.6 mm deep, weighing 5.31 kg in the 1 GHz version, with an 11.6 in. capacitive touch display.
Scope, spectrum analyzer and signal source in one instrument
The 3 Series MDO combines analog waveforms, optional digital logic, optional arbitrary function generation and a dedicated spectrum analyzer channel. The datasheet lists integration as the way to save bench or rack space in manufacturing test stations and service kits, so one box can replace three instruments on a crowded bench.
The MDO34 has four analog channels and is offered in 100 MHz, 200 MHz, 350 MHz, 500 MHz and 1 GHz bandwidth versions, upgradable later by software key up to 500 MHz in the field (1 GHz upgrades need a Tektronix service centre). Every channel records 10 M points, and FastAcq reaches more than 280,000 waveforms per second on the 1 GHz models.
Key features from the datasheet
- Spectrum analyzer 9 kHz to 1 GHz as standard, or 9 kHz to 3 GHz with option 3-SA3, with up to 3 GHz capture bandwidth.
- Optional 16 digital channels (3-MSO) with 121.2 ps MagniVu timing resolution.
- Optional 50 MHz arbitrary function generator (3-AFG) with 13 predefined waveforms and 128 k arbitrary record.
- Standard TekVPI passive probes with 3.9 pF loading; 250, 500 MHz or 1 GHz depending on model.
- Free 4-digit DVM and 5-digit frequency counter after product registration.
Technical specification
Model and bandwidth overview
| Parameter | Specification |
|---|---|
| Model | MDO32 (2 analog channels) or MDO34 (4 analog channels) |
| Bandwidth versions | 100, 200, 350, 500 MHz and 1 GHz |
| Sample rate | 2.5 GS/s on all channels up to 500 MHz; 5 GS/s on 1 GHz models |
| Record length | 10 M on all channels |
| Standard spectrum analyzer | 9 kHz to 1 GHz; 3 GHz with 3-SA3 |
Vertical, horizontal and trigger
| Parameter | Specification |
|---|---|
| Input impedance | 1 MΩ ±1 % or 50 Ω ±1 % |
| Sensitivity | 1 mV/div to 10 V/div (1 MΩ); 1 mV/div to 1 V/div (50 Ω) |
| Vertical resolution | 8 bits; 11 bits with Hi Res |
| Maximum input | 1 MΩ: 300 V RMS CAT II, peaks ≤ ±425 V; 50 Ω: 5 V RMS, peaks ≤ ±20 V |
| DC gain accuracy | ±1.5 % at 5 mV/div and above; ±2.0 % at 2 mV/div; ±2.5 % at 1 mV/div |
| Bandwidth limits | 20 MHz or 250 MHz (≥350 MHz models); 20 MHz (100 and 200 MHz models) |
| Time base | 400 ps/div (1 GHz) or 1 ns/div to 1000 s/div; ±10 ppm over any interval ≥1 ms |
| Holdoff | 20 ns to 8 s |
| Trigger types | Edge, sequence, pulse width, timeout, runt, logic, setup and hold, rise/fall, video, parallel |
| Peak detect | Glitches as narrow as 1.5 ns (1 GHz) to 7.0 ns (100 MHz) |
| Measurements | 30 time-domain, 3 frequency-domain; statistics, gating, FFT, math |
Spectrum analyzer and optional generator
| Parameter | Specification |
|---|---|
| Resolution bandwidth | 20 Hz to 150 MHz |
| Reference level | -140 dBm to +20 dBm |
| DANL, 5 MHz to 2 GHz | < -136 dBm/Hz (< -140 dBm/Hz typical) |
| Maximum input level | +20 dBm average continuous; ±40 V DC; +33 dBm CW before damage |
| AFG sine / square | 0.1 Hz to 50 MHz / 0.1 Hz to 25 MHz; 20 mVp-p to 5 Vp-p into Hi-Z |
| Digital inputs (3-MSO) | 16 channels; 500 MS/s main, 8.25 GS/s MagniVu; threshold -15 V to +25 V; 250 MHz toggle rate |
Display, I/O, power and environment
| Parameter | Specification |
|---|---|
| Display | 11.6 in. (295 mm) TFT, 1920 x 1080, capacitive touch |
| Interfaces | Two front and one rear USB 2.0 host, USB 2.0 device (USBTMC), 10/100 LAN, HDMI, aux out, Kensington slot |
| Power | 100 to 240 V ±10 %, 50 to 60 Hz (400 Hz ±10 % at 115 V); 130 W maximum |
| Dimensions | 252 x 370 x 148.6 mm (H x W x D); rackmount 6U |
| Weight | MDO34 1 GHz 5.31 kg net; 7.89 kg shipping |
| Temperature | Operating -10 to +55 °C; non-operating -40 to +71 °C |
| Humidity / altitude | 5 to 90 % RH to +40 °C, 5 to 60 % RH to +55 °C; operating to 3,000 m |
| Safety / EMC as printed | UL61010-1:2004, CAN/CSA-C22.2 No. 61010.1, EN61010-1:2001, IEC 61010-1:2001; EMC Directive 2004/108/EC |
How to choose the options
Choose the MDO34 when you need four analog inputs next to the RF input; the two-channel MDO32 adds an auxiliary trigger input instead. Instrument options are 3-AFG, 3-MSO, 3-SA3 and 3-SEC (password-protected ports and firmware update). Analysis options are sold per bus: 3-SREMBD (I2C, SPI), 3-SRCOMP (RS-232/422/485/UART), 3-SRAUTO (CAN, CAN FD, LIN, FlexRay), 3-SRUSB2, 3-SRAUDIO, 3-SRAERO (MIL-STD-1553, ARINC429) and 3-PWR, or the 3-BND bundle. Each can be added later as SUP3 software keys tied to the serial number. State the bandwidth when enquiring.
Operating notes
Leave 50.8 mm of free space on the right side and at the rear for cooling. The 50 Ω paths accept only 5 V RMS, so use the 1 MΩ path for anything above that. A TPA-N-PRE preamplifier adds 12 dB nominal gain from 9 kHz to 6 GHz for small signals, but reduces the maximum DC input to ±20 V.
Where it fits in Gulf workshops and labs
Radio-frequency checks on telemetry radios, remote-terminal-unit links and switch-mode supplies are typical uses for the spectrum analyzer, since it can show which harmonic is radiating while the scope shows the time-domain cause. Service teams working on generator controllers and drives can use CAN and power-analysis options. The instrument operates from -10 to +55 °C and is a laboratory unit: no ingress or hazardous-area rating is printed.
Probes and add-ons
Tektronix lists TPP0250, TPP0500B and TPP1000 passive probes, TDP0500 and TDP1000 differential probes, THDP0200 and TMDP0200 high-voltage differential probes, TCP0030A current probes, near-field probe set 119-4146-00, the RM3 rackmount kit and HC3 or SC3 transit cases. See the Portable Test and Measurement category.
Frequently asked questions
How many analog channels and what bandwidth does the MDO34 have?
Four analog channels, in 100 MHz, 200 MHz, 350 MHz, 500 MHz or 1 GHz bandwidth versions, with 10 M record length on each channel.
What frequency range does the spectrum analyzer cover?
9 kHz to 1 GHz as standard, and 9 kHz to 3 GHz with option 3-SA3.
Can digital channels and a function generator be added?
Yes. Option 3-MSO adds 16 digital channels and 3-AFG adds a 50 MHz arbitrary function generator; both can also be added later by software key.
What display does it have?
An 11.6 in. 1920 x 1080 capacitive touch display.
Is Seven Star LLC a Tektronix distributor?
No, we are an independent supplier in Muscat and supply Tektronix items on request rather than acting as a Tektronix channel partner.
Documents and quotation
For quotation, send your required quantity and destination. The Tektronix datasheet for MDO34 is provided below the description on this page. Seven Star LLC works as an independent supplier from Muscat. Please compare code, ratings and approvals with the document before you place an order; see also the category listing.
Datasheets & Documents
- Datasheet Tektronix 3 Series MDO datasheet (PDF) Download
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About brand
Tektronix is an American maker of test and measurement instruments, founded in 1946 in Portland, Oregon, by Howard Vollum and Jack Murdock. Its early triggered-sweep oscilloscopes set the pattern for modern scopes. Tektronix is headquartered in Beaverton, Oregon, joined Danaher in 2007 and has been part of Fortive since 2016; Keithley is a Tektronix company.
Seven Star LLC is an independent supplier in Muscat. We list Tektronix and Keithley instruments with the official datasheet beside each listing, for laboratories, workshops and training centres in Oman and the GCC.
Tektronix company profile
| Founded | 1946, Portland, Oregon, USA |
|---|---|
| Founders | Howard Vollum and Jack Murdock |
| Headquarters | Beaverton, Oregon |
| Ownership | Fortive, since 2016 (Danaher from 2007) |
| Product families | MSO 2, 4, 5 and 6 Series mixed-signal oscilloscopes, TBS basic oscilloscopes, AFG arbitrary function generators, real-time spectrum analysers, probes, Keithley source measure units and DMMs |
Milestones
- 1946: Vollum and Murdock found Tektronix.
- 2007: Danaher acquires Tektronix.
- 2016: Tektronix becomes part of Fortive.
Tektronix product series
Oscilloscopes include the TBS2104 100 MHz digital storage oscilloscope, the MSO24 2 Series and MSO44B 4 Series B mixed signal oscilloscopes and the MDO34 3 Series mixed domain oscilloscope with built-in spectrum analyzer.
Meters and sources include the Keithley DMM6500 6.5-digit touchscreen multimeter, the DMM7510 7.5-digit sampling multimeter, the Keithley 2460 SourceMeter (100 V, 7 A, 100 W), the DMM4050 bench multimeter, the PA1000 single-phase power analyzer and the AFG3022C two-channel arbitrary function generator.
Where Tektronix instruments are used
Electronics design and repair, power electronics and drive testing, component characterisation, university and training labs and calibration rooms.
Tektronix products we list
Ordering Tektronix instruments: what we need
Send the model, bandwidth and channel options, software licences, probes and accessories, the supply voltage and whether a calibration certificate is required.
Facts checked against Tektronix company history and Fortive filings, October 2026.
Browse Tektronix products by category: Portable Test & Measurement.
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Frequently Asked Questions
How many analog channels and what bandwidth does the MDO34 have?
Four analog channels, in 100 MHz, 200 MHz, 350 MHz, 500 MHz or 1 GHz bandwidth versions, with 10 M record length on each channel.
What frequency range does the spectrum analyzer cover?
9 kHz to 1 GHz as standard, and 9 kHz to 3 GHz with option 3-SA3.
Can digital channels and a function generator be added?
Yes. Option 3-MSO adds 16 digital channels and 3-AFG adds a 50 MHz arbitrary function generator; both can also be added later by software key.
What display does it have?
An 11.6 in. 1920 x 1080 capacitive touch display.
Is Seven Star LLC a Tektronix distributor?
No, we are an independent supplier in Muscat and supply Tektronix items on request rather than acting as a Tektronix channel partner.
Reviews
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