Tektronix 3 Series Hybrid Domain Oscilloscope

Harmonic distortion:<-55dBc (guaranteed),<-60dBc (typical) when 2nd harmonic>100MHz;

Input capability: Maximum continuous power+20dBm (0.1W), DC maximum ± 40V, pulse power+45dBm (32W,<10 μ s pulse width,<1% duty cycle).

6. Other key specifications (ensuring overall availability)

Display: 11.6-inch TFT capacitive touch screen, 1920 × 1080 resolution, 16.77 million colors, brightness of 450cd/m ² (new screen full brightness), supports touch operations (such as dragging cursor, switching menu);

I/O interface:

Ethernet: RJ-45, 10/100Mb/s, used for remote control and data transmission;

USB: 2 USB 2.0 hosts on the front panel (connected to USB flash drives and mice), 1 USB 2.0 host and 1 USB device on the back panel (supporting USBTMC);

HDMI: 19 pins, used for external display;

GPIB: Requires TEK-USB-488 adapter (optional), supports IEEE 488.2 protocol;

Environment and Machinery:

Working temperature -10 ℃ -+55 ℃, non working temperature -40 ℃ -+71 ℃;

Weight: MDO32 at 1GHz is about 5.26kg, MDO34 at 1GHz is about 5.31kg, with a soft shell (SC3) content of+1.81kg;

Dimensions: Height 252mm x Width 370mm x Depth 148.6mm.

Performance verification process (verifying whether the instrument meets the standards)

Performance validation is the core chapter of the document, which includes over 20 tests covering both analog and digital channels AFG、 All core functions such as spectrum analyzer must be strictly executed according to the process to ensure reliable results.

1. Preparation before verification (basic conditions)

Instrument preheating and compensation: The instrument needs to be continuously powered on for 10 minutes to achieve thermal stability; Afterwards, execute "Signal Path Compensation (SPC)" - path: Utility → Calibration → Run SPC, taking 5-15 minutes per channel. If the ambient temperature changes by more than 5 ℃, SPC needs to be re executed.

Equipment connection and calibration:

The oscilloscope and all testing equipment (such as DC voltage sources and power meters) must be connected to the "same AC circuit" to avoid testing errors caused by ground offsets between different circuits; If unsure, it can be connected through a common ground power strip;

Before testing, it is necessary to calibrate the "signal source accuracy", such as verifying the DC voltage source output with a high-precision DMM (such as Tektronix DMM4040) and verifying the frequency of the sine wave generator with a frequency counter.

List of required equipment (Table 3): The document specifies the "minimum requirements" to avoid invalid test results due to insufficient equipment accuracy. The core equipment is as follows:

Equipment Name Minimum Requirements Example Model Usage

DC voltage source 3mV-100V, ± 0.1% accuracy Fluke 9500B (equipped with 9530 module) provides DC excitation, tests gain and offset accuracy

Level sine wave generator 9kHz-3000MHz, ± 4% amplitude accuracy Anritsu MG3690C provides AC excitation, tests bandwidth and noise

Time stamp generator with 80ms cycle, ± 1ppm accuracy, rise time<50ns - test sampling rate, delay accuracy

Power meter+sensor sensor range -30dBm -+10dBm Rohde&Schwarz NRX+NRP-Z98 testing spectrometer amplitude accuracy

Frequency counter 0.1Hz-50MHz, 5ppm accuracy Tektronix FCA3000 testing AFG, DVM frequency accuracy

Auxiliary accessories: 50 Ω BNC cable, 50 Ω straight through terminal Tektronix 012-0057-01 matching impedance to reduce signal reflection

2. Core testing projects and detailed processes

(1) Basic testing: Self check and SPC (to verify that the instrument hardware is functioning properly)

System diagnosis (self-test):

Disconnect all probes and cables, and reset the instrument by pressing the "Default Setup" button on the front panel;

Touch "Utility" → "Self Test" → "Run Self Test", wait for 5-10 minutes (including hardware, software, and interface testing);

After self inspection is completed, confirm that all items are "Passed"; If it fails, record the failure item (such as' RF channel not responding ') and contact Tektronix support.

Signal Path Compensation (SPC):

After passing the self-test, press "Default Setup", touch "Utility" → "Calibration" → "Run SPC";

During the compensation process, the instrument cannot be operated. After completion, confirm "SPC Status=Passed";

SPC is a prerequisite for all subsequent accuracy tests, and failure to pass cannot guarantee the validity of the test results.

(2) Simulation channel key testing (core function verification)

① Input terminal testing (verifying impedance accuracy)

Test purpose: To confirm whether the 1M Ω/50 Ω input impedance is within the qualified range, and to avoid signal attenuation/reflection caused by impedance mismatch.

Testing process:

Connect a DC voltage source (such as Fluke 9500B) to channel 1, with the voltage source set to "1M Ω output impedance";

Press "Default Setup" for the instrument, set channel 1 to a vertical gear of 10mV/div and a termination impedance of 1M Ω;

Measure the input impedance of channel 1 using a voltage source, and record the value within the range of 990k Ω to 1.01M Ω;