PiFlux · Volume 8
SDR Capabilities & vs. uConsole
The Advanced Radio external SDR, software stack, bands, antennas, and a head-to-head comparison with the Clockwork uConsole's SDR story
Stub — section skeleton authored 2026-06-27; prose to follow.
8.1 SDR on the PiFlux: Context
8.2 The Advanced Radio Module
8.2.1 The SDR front end: hardware identification
8.2.2 Frequency coverage and sensitivity
8.2.3 The GPS and LoRa complement
8.3 Software Stack
8.3.1 Driver layer
8.3.2 SDR receivers: GQRX and SDR++
8.3.3 GNU Radio on ARM
8.3.4 Decoders and protocol tools
8.3.5 APRS and digital voice: Direwolf
8.4 Antenna Options for the PiFlux Form Factor
8.4.1 The antenna interface on the chassis
8.4.2 Portable antenna options by band
8.4.3 Regulatory context (Part 97 / receive-only)
8.5 Representative Field Use Cases
8.5.1 ADS-B aircraft tracking
8.5.2 APRS receive and decoding
8.5.3 HF receive with an upconverter
8.5.4 Signal hunting and spectrum survey
8.5.5 AIS marine traffic receive
8.6 SDR Comparison: PiFlux vs. Clockwork uConsole
8.6.1 uConsole SDR story
8.6.2 Integration model comparison
8.6.3 Compute platform comparison for SDR workloads
8.6.4 Decision: which platform for which SDR user
8.7 Resources
Table 1 — 7. Resources
| Resource | URL |
|---|---|
| Advanced Radio add-on (Carbon Computers) | https://carboncomputers.us/products/pi-flux |
| RTL-SDR drivers and software | https://www.rtl-sdr.com/rtl-sdr-quick-start-guide/ |
| GQRX SDR receiver | https://www.gqrx.dk/ |
| SDR++ | https://www.sdrpp.org/ |
| GNU Radio | https://www.gnuradio.org/ |
| Direwolf (APRS software TNC) | https://github.com/wb2osz/direwolf |
| dump1090-fa (ADS-B) | https://github.com/flightaware/dump1090 |
| rtl-ais (AIS decoder) | https://github.com/dgiardini/rtl-ais |
| rtl_433 (ISM sensor decoder) | https://github.com/merbanan/rtl_433 |
| uConsole deep-dive (SDR + radio) | ../../Clockwork uConsole/ |
| Vol 5 — Add-On Catalog (Advanced Radio) | ../../PiFlux/02-inputs/volume_sources/vol5.md |
| Vol 4 — Power & Thermal (SDR CPU load) | ../../PiFlux/02-inputs/volume_sources/vol4.md |