Electrical_Engineer
13.3K posts
Electrical_Engineer
@Saelig
Started by an EE in 1988, Saelig is designed to be a source for engineers and techs to find test equipment & unique adapters, ICs, boards & components.
Fairport, NY Katılım Mart 2009
9.1K Takip Edilen14.5K Takipçiler
Unlocked the 100 MHz real time bandwidth option!
Mehdi@MehdiHacks
I have received a new RF product to test and review: Harogic SAN-90 real time spectrum analyzer. I will do detailed and in-depth test and review, and also compare it to my Signal Hound analyzers. Let me know if you have specific questions or tests you want me to do
English
16 Tx (9kHz to 10GHz version) PCB ready for Soldering 😎
This is the SPARK Ultra frontend PCB which will fit in a 19" rack. 16 independent phase coherent 40GSPS Tx.
#aaronia #rf #sigint #tech #signalgenerator
English
Understanding Oscilloscope Probe Compensation for x10 Probes
Oscilloscope probe compensation is a fundamental aspect of ensuring accurate measurements when using an oscilloscope. When using x10, x100 probes it’s necessary to adjust the compensation.
If a scope probe is not properly compensated then it can lead to inaccurate and misleading readings.
But what exactly is it, and why is it so crucial?
Why Compensate Your Probe?
The performance of your oscilloscope is directly tied to how well your probes are matched to it. Most oscilloscopes have an input impedance that includes a combination of resistance (typically 1MΩ) and capacitance (around 15 to 30 pF).
When you use a passive attenuating probe (like a 10x or 100x probe), the probe itself adds capacitance which, if not compensated for, can distort the signal. Without proper compensation, your oscilloscope readings can suffer from amplitude inaccuracies or waveform distortion, especially at higher frequencies.
How Does Probe Compensation Work?
Compensation involves adjusting the capacitance within the probe to match the oscilloscope's input capacitance. This is typically done by tuning a variable capacitor in the probe. Here's how:
1. Connect the Probe: Hook up your probe to the oscilloscope's input channel.
2. Square Wave Test: Most oscilloscopes have a built-in square wave generator for this purpose. Connect the probe tip to this, and the ground clip to the ground terminal on the scope.
3. Adjust for Flat Response: You'll see the square wave on the screen. If the waveform shows overshoot (probe overcompensated) or undershoot (probe undercompensated), use the adjustment screw or dial on the probe to tweak the response until you get a flat top on the square wave, which indicates proper compensation.
The adjustment is crucial because even at low frequencies, the interaction between the scope's input capacitance and the probe's capacitance can skew your measurements. For example, with a 9MΩ resistor in a 10x probe, the 25pF capacitance starts affecting signal integrity at frequencies as low as 10kHz.
When to Compensate?
- Change of Scope: If you move the probe between different oscilloscopes or even different channels on the same scope, compensation is necessary due to potential variations in input capacitance.
- Regular Checks: Even if you're not switching equipment, it's good practice to check probe compensation periodically, as conditions can change or probes might be swapped or borrowed.
The Impact of Not Compensating:
Failing to compensate your probe can lead to:
- Amplitude Errors: Signals might appear with the wrong amplitude, leading to incorrect measurements.
- Waveform Distortion: High-frequency components of a signal might not be accurately represented, leading to misleading waveform shapes.
For a deeper dive into the specifics, check out my detailed guide on my website: link in the comments.
#oscilloscope #scope #oscilloscopes #testmeasurement #electronicsnotes
English
The Amplicon KwikDraw-A rackmount consoles series are available in single, 8, 12 and 16 port options with varying screen sizes and resolutions and single/dual/triple displays. Offering a full 106-key keyboard and touchpad in 1U/2U rack-space. bit.ly/SAELIGkwikdraw
English
40GSPS SPARK DDS RF Signal Generator at Satellite 2026 🥳
Unmatched performance: 2x20GHz bandwidth, 750ps chirp, powerfull API. Runs on any platform.
#aaronia #satellite2026 #rf #microwave #tech
English
The #VSG200 is the latest drop in our vector signal generator line and with a frequency range of 100 kHz to 20GHz and an amplitude range of -55 dBm to +7 dBm, it's our most powerful #VSG yet. Don't just take our word for it though - check out the data sheet here for the full specs ⬇️ bit.ly/3XHUwNO
English
Mitigating Risk to Protect Value: How the UK MoD Saved Millions Through Critical Electronics Recovery. saelig.com/news/articles/…
English
Siglent SMM3000X features 6½-digit resolution, output capability of up to ±210 V DC voltage, ±3.03 A DC current, and ±10.5 A pulsed current, with programming and measurement resolution down to 10 fA / 100 nV.
saelig.com/pr/smm3000x.ht…
English
Latest Nuts&Volts newsletter is out: BUILD AN AM SIGNAL GENERATOR - Simplify your troubleshooting with this simple signal generator you can trust!
bit.ly/NV032026
English
At DesignCon ev eryone asks“What’s new?” From the portable MHO900 (800 MHz) up to the DS80000 (13 GHz) oscilloscope on the bench. But the quiet surprise for a lot of visitors? RSA6000 spectrum analyzer + the new DNA5000/6000 VNAs.
youtu.be/SezA_2NfSLI
YouTube
English
EMC SHORT COURSE (APRIL 13-16, 2026) UoW - Madison! Looking for a deep dive in Electromagnetic Interference (EMI) and Compatibility (EMC)? Join Todd Hubing & Ken for this upcoming training session designed for engineers and leaders working with EMI/EMC.interpro.wisc.edu/courses/emc-an…
English
@nemanjan00 Aren't they a bit hard to get inside the US right now?
English
Does anyone have a UNI-T MSO1000 series oscilloscope? I’m considering getting one instead of the Rigol MSO5000.
English
Electrical_Engineer retweetledi
Not sure which high-voltage oscilloscope probe is right for your application?
Use Teledyne LeCroy’s High-voltage Probe Selection Guide to quickly narrow your options and choose with confidence.
Try it here: lcry.us/4ba9pQs
#powerelectronics #TeledyneLeCroy #APEC26 #APEC2026
English
Saelig Debuts DNA5000/6000 Series 26.5GHz Vector Network Analyzers | Aviation Pros:
bit.ly/saeligAVpro031…
English
Discover the Best in Test & Measurement Equipment! 🔍 At Saelig, we offer an extensive selection of test & measurement equipment for professionals + makers alike. From oscilloscopes to signal generators apectrum analyzers and data loggers
#TestEquipment saelig.com
English
event.on24.com/wcc/r/5149619/… How To Choose An Oscilloscope
English