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

ResourceURL
Advanced Radio add-on (Carbon Computers)https://carboncomputers.us/products/pi-flux
RTL-SDR drivers and softwarehttps://www.rtl-sdr.com/rtl-sdr-quick-start-guide/
GQRX SDR receiverhttps://www.gqrx.dk/
SDR++https://www.sdrpp.org/
GNU Radiohttps://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