The Siglent SSA3021X Spectrum Analyzer? Yeah, it runs Doom.

I know less than nothing about Spectrum Analysis tools, but I'm told this is a pretty nice and cheap one. I'm also told that it’s fairly easy to Telnet in and muck around with the Linux/Busybox-enabled insides.

ItRunsDoom reader Maxime decided to take this train of thought to its usual station. There’s no input just yet so it just loops the rolling demo endlessly, but we have to start somewhere, right? You can grab the source code here if you’re so inclined, too.

Siglent SDS800X HD Series Oscilloscopes: A New Choice for High-Resolution Testing Product Overview The Siglent SDS800X HD Series is the latest high-resolution digital oscilloscope from Siglent Technologies. Positioned in the mid-range market, it provides professional-grade test and measurement solutions for engineers and educators. While maintaining Siglent's renowned cost-effectiveness, this series significantly improves waveform capture rate and vertical resolution.

Key Technical Features 12-bit High-Resolution ADC The SDS800X HD series features standard 12-bit vertical resolution, providing 16 times finer vertical measurement accuracy than traditional 8-bit oscilloscopes, making it ideal for small signal measurements and power integrity analysis.

200MHz Bandwidth Option The series offers a variety of bandwidth options: 70MHz, 100MHz, and 200MHz, to meet diverse application requirements. The top-of-the-line model, the SDS824X HD, supports 200MHz bandwidth and a 2GSa/s real-time sampling rate.

Excellent Waveform Capture Rate Utilizing Siglent's latest SPO technology, the waveform capture rate reaches up to 500,000 frames/second (in segmented memory mode), significantly increasing the probability of capturing infrequent anomalies.

Large Memory Depth The standard memory depth is 100 Mpts (expandable to 200 Mpts). Combined with the segmented memory function, it can record high-resolution waveform data for extended periods.

7-inch Capacitive Touchscreen The high-resolution (1024×600) touchscreen display supports gesture operation and offers an intuitive and user-friendly interface.

Application Scenarios Power Supply Design and Testing The 12-bit resolution is ideal for applications requiring high-precision measurements, such as switching power supply ripple measurement and power integrity analysis.

Embedded System Development Supporting triggering and decoding for multiple serial protocols (I2C, SPI, UART, CAN, etc.) makes it an ideal tool for MCU and embedded system development.

Education and Research Combined with cost-effective features, it is suitable for university laboratories and research institutions.

Automotive Electronics The high resolution combined with powerful triggering capabilities enables signal analysis and troubleshooting in automotive electronics.

Competitive Advantages The SDS800X HD offers higher vertical resolution than similarly priced competitors.

Compared to high-end 12-bit oscilloscopes, it offers a more attractive price.

Continues the ease of use that Siglent products have always enjoyed.

A wide range of optional accessories and upgrade options.

Summary The Siglent SDS800X HD series oscilloscopes fill the gap in high-resolution oscilloscopes in the mid-range market, delivering professional-grade test capabilities at an affordable price. For engineers and educators who need to make precise measurements, this is a worthwhile option. Its 12-bit resolution is particularly suitable for applications requiring high-precision measurements, such as power supply, audio, and sensor signals.

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