Reference handbook · BNC-HB-001 · Rev A

SDR Integration Handbook for the ICX-FieldHawk RTSA

Open software on a calibrated real-time analyzer: where software-defined radio and instrument-grade measurement meet, what each one gives up at the boundary, and how to work across it without losing the number.

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Software-defined radio and instrument-grade measurement grew up in different rooms. The open ecosystem gives an engineer every sample and no absolute reference; the instrument gives an absolute reference and, usually, no way in. This handbook is about the boundary between them.

It sets out what a software-defined receiver is and where its programmable edge falls, derives what real-time analysis guarantees that a swept receiver cannot, documents the SoapySDR hardware abstraction layer in enough detail to write acquisition code from, reviews the ICX-FieldHawk against seven requirements derived before any product is named, and then walks six signal chains built in GNU Radio against a calibrated front end. It closes with the practice, the troubleshooting and the quick reference a working engineer needs on the bench.

44 pagesFive parts, 26 sections, 20 figures and 22 tables, every one referenced from the text.

6 signal chainsAM, FM, QPSK, 16-QAM, Wi-Fi OFDM to a packet capture, and ADS-B, each drawn and given its full parameter set.

Every number checkableEach specification carries its measurement condition, and the derived figures show the arithmetic that produced them.

Honest limitsA verification note lists every value that is documented or demonstrated rather than published on a datasheet.

What is in it

Part I. The field

2. Why software-defined radio arrived in measurement
3. Anatomy of a software-defined receiver
4. What separates a reading from a measurement
5. Real-time analysis, and what gap-free actually guarantees
6. SoapySDR in depth
7. What the abstraction deliberately leaves out

Part II. The ICX-FieldHawk, reviewed

8. The family: form factors and frequency tiers
9. The front end and the published performance
10. The real-time engine
11. IQ capture, streaming and triggering
12. The measurement set, and what it costs
13. Reference and timing
14. Where this instrument is not the answer

Part III. Building on it: GNU Radio

15. How a flowgraph actually works
16. The source block, parameter by parameter
17. Getting the environment right
18. Six chains, drawn and explained
19. The arithmetic that has to close
20. Making a flowgraph produce a defensible number

Part IV. Applications

21. Ten applications, reviewed

Part V. Practice and reference

22. Measurement practice
23. Troubleshooting
24. Proving the amplitude path, and a reproducibility checklist
25. Quick reference
26. Definitions, symbols and further reading

Who it is for

RF and systems engineers building measurement or monitoring systems on open software. Researchers and teaching staff who need a result that survives peer review rather than a demonstration. Product architects deciding how much of a receiver to build. Test engineers who already own an analyzer and want to reach the samples underneath it.

Download the handbook (PDF, 44 pages) Read the companion: SDR Product Handbook Talk to an RF engineer about your application