PicoScope vs Keysight at 200 MHz: Which Oscilloscope Delivers More Value in India?

The 200 MHz Decision Point

The 200 MHz bandwidth class is the most competitive segment of the oscilloscope market, it serves the broadest range of applications (embedded systems, power electronics, automotive, industrial) and attracts the most purchasing decisions. At this bandwidth, Indian engineering teams typically evaluate instruments from Keysight (InfiniiVision 1000X, 2000X, and 3000 series), Tektronix (TBS and MDO series), Rohde & Schwarz (RTB and RTM series), and Pico Technology (PicoScope 3000E series).

This article compares the PicoScope 3000E series against the Keysight InfiniiVision lineup at 200 MHz, the two most frequently compared options in GSAS customer evaluations.

Specification Comparison

Memory Depth: The Largest Divergence

This is where the PC-based architecture creates the widest gap:

• PicoScope 3406E: 512 MS standard (upgradeable)
• Keysight EDUX1052G: 2 Mpts standard
• Keysight DSOX2024G: 8 Mpts standard (100 Mpts optional, with licence purchase)

The PicoScope provides 64–256 times more buffer depth than the Keysight models at standard configuration. This is not a minor specification difference, it fundamentally changes what you can capture.

With 512 MS at 1 GS/s sample rate, the PicoScope captures approximately 500 ms of continuous data at full resolution. The Keysight DSOX2024G at 8 Mpts captures approximately 4 ms. For serial bus decoding, power supply transient capture, and intermittent fault hunting, this difference determines whether you capture the event of interest or miss it.

Protocol Decoding

• PicoScope: 20+ protocol decoders included free (CAN, CAN FD, LIN, FlexRay, I2C, SPI, UART, I2S, 1-Wire, and more)
• Keysight 2000X/3000: Protocol decoders sold separately. Each decoder licence costs approximately Rs 30,000–80,000 depending on protocol complexity

For a lab needing CAN, I2C, SPI, and UART decoding:

• PicoScope: Rs 0 additional (included)
• Keysight: approximately Rs 1.2–3.2 lakh additional for four protocol licences

Spectrum Analysis

• PicoScope: Built-in FFT spectrum mode with up to 1M-point FFT, included free
• Keysight: Built-in FFT is standard on most models, but advanced spectrum analysis features may require additional licences on lower-tier models

Sample Rate

• PicoScope 3406E: 1 GS/s
• Keysight DSOX2024G: 2 GS/s

Keysight has the advantage here, 2 GS/s provides better time resolution for fast signal edges. However, for most 200 MHz applications, 1 GS/s provides adequate sampling (5x oversampling of the bandwidth-limited signal).

ADC Resolution

• PicoScope 3406E: 8-bit (with FlexRes option for 10/12-bit at reduced bandwidth)
• Keysight 2000X: 8-bit standard (12-bit high-resolution mode via software on some models)

Comparable at the base level; the PicoScope FlexRes hardware approach and Keysight’s software approach achieve similar results.

Software Updates and Licensing

• PicoScope: Free lifetime software updates. PicoScope 7 is a single application, no separate licence tiers.
• Keysight: Software updates may be included for a limited period. Advanced features and bandwidth upgrades are available as paid licences.

Workflow Comparison

PicoScope Workflow

1. Connect PicoScope to laptop via USB
2. Launch PicoScope 7 software
3. Configure channels, timebase, trigger
4. Capture and analyse on the PC display (any size, 14-inch laptop to 32-inch monitor)
5. Export data, screenshots, or CSV directly from the PC

Strengths: Large display, easy data export, portable, works on macOS/Linux/Windows. Trade-off: Requires a PC.

Keysight Workflow

1. Power on the oscilloscope
2. Connect probes
3. Configure using front panel knobs and touchscreen
4. Capture and analyse on the built-in display (7–8.5 inches depending on model)
5. Export via USB drive or network connection

Strengths: Standalone operation, physical knobs, no PC dependency. Trade-off: Smaller display, data export less convenient, heavier.

Total Cost of Ownership (3-Year Projection)

For a lab needing a 4-channel 200 MHz oscilloscope with CAN, I2C, SPI, and UART protocol decoding:

PicoScope 3406E:

• Instrument: competitive pricing (contact GSAS for current INR quote)
• Protocol decoders: Rs 0 (included)
• Software updates: Rs 0 (lifetime free)
• Calibration: periodic (available through GSAS)

Keysight DSOX2024G:

• Instrument: typically higher list price at 200 MHz 4-channel
• Protocol decoders: Rs 1.2–3.2 lakh (4 protocols)
• Memory upgrade to 100 Mpts: additional licence cost
• Software updates: may require separate purchase after initial period

The total ownership cost difference can be significant, particularly when protocol decoders and memory upgrades are factored in.

When Each Option Makes Sense

Choose PicoScope When:

• Memory depth is a priority (serial bus, transient capture)
• You need multiple protocol decoders without ongoing licence costs
• Portability matters
• Budget is constrained
• Your engineers prefer working on their PCs

Choose Keysight When:

• Standalone operation is required
• You prefer physical knobs and a dedicated instrument
• Your organization has existing Keysight calibration and support contracts
• Higher native sample rate (2 GS/s) is important for your specific measurements

Why Buy PicoScope from GSAS

GSAS Micro Systems is India’s authorized Pico Technology partner. We provide objective comparison guidance, we want you to choose the right instrument for your application, not just the one we sell.

• Side-by-side evaluation at our offices in Bengaluru, Hyderabad, Chennai, Pune, Mumbai, and Delhi NCR
• INR invoicing with GST-compliant documentation
• Free protocol decoders and software updates: no hidden costs
• Application engineering support for your specific measurement challenges

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