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Handheld spectrum analyser with 4 inch touchscreen, dark matte finish, SMA port and 3.5 mm jack visible

BFKK

BFKK TinySA Ultra 4" Spectrum Analyzer 100kHz-5.3GHz measurement tool

SKU CH-65ME-WB2X9

Portable spectrum analyser covering 100 kHz to 5.3 GHz with 4″ touchscreen, 32 GB storage, 3.5 mm audio output and 3000 mAh battery

  • Product typeStroboscopes
  • Wide frequency coverage up to 5.3 GHz
  • Low phase noise of -92 dBc at 10 kHz offset
  • Excellent sensitivity with DANL -166 dBm/Hz
  • 4 inch touchscreen for clear operation
  • Built-in 32 GB SD card stores onsite data

Portable spectrum analyser

The BFKK TinySA Ultra is a handheld spectrum analyser covering 100 kHz to 5.3 GHz in ultra mode and up to 800 MHz in high-performance mode. It is intended for engineers, hobbyists and field technicians who need a portable RF measurement tool with a built-in display and storage.

Frequency limits and calibration

Above 5.35 GHz the instrument uses harmonic mixing, which introduces variable conversion loss that may require user calibration using a 5.34 GHz reference signal between -50 dBm and -10 dBm. In ultra mode the low-pass filter is automatically engaged up to 750 MHz; beyond that the filter is bypassed and measurement speed decreases due to mirror and spur elimination processing.

Build, storage and audio

A 4-inch touchscreen provides direct control and clear readout, while an integrated SD slot with a supplied 32 GB microSD card enables on-site data capture without external storage. A standard 3.5 mm headphone jack allows audio monitoring through headphones or an external amplifier, and a 3000 mAh battery supports untethered operation.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $256.99
Pricier than about 81% of the 3,030 comparable items (median $54.99).

Specifications

Product
Product typeStroboscopes

Questions about this item

Should I pick the standard 100kHz-800MHz range or the Ultra mode up to 5.3GHz for my measurements?

Use standard mode for best sensitivity and speed up to 800MHz. Switch to Ultra mode when you need coverage up to 5.3GHz; the low-pass filter is bypassed above 750MHz and sweep speed slows due to spur elimination.

What does the -166dBm/Hz DANL mean when I am scanning a live signal?

It is the displayed average noise level in a 1Hz resolution bandwidth. In practice you will see signals roughly 166dB above the thermal floor in a 1Hz bin; wider RBW settings raise the visible floor proportionally.

How does the harmonic-mixing front end above 5.35GHz affect the readings I get?

Above 5.35GHz conversion loss varies, so a level step can appear at 5.35GHz. Apply a -50 to -10dBm signal at 5.34GHz and run the CALIBRATE above 5.34GHz command to remove the step.

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