A New Raspberry Pi for π Day

The Raspberry Pi Foundation has announced the new Raspberry Pi 3 Model B+. This incremental design improvement provides some interesting features.

  • 1.4GHz 64-bit quad-core ARM Cortex-A53 CPU
  • Dual-band 802.11ac wireless LAN and Bluetooth 4.2
  • Faster Ethernet (Gigabit Ethernet over USB 2.0)
  • Power-over-Ethernet support (with separate PoE HAT)
  • Improved PXE network and USB mass-storage booting
  • Improved thermal management
Raspberry Pi 3 Model B+

The 5 GHz wifi and power over ethernet capabilities are especially interesting improvements. The Raspberry Pi is a great experimenter’s computer. Many amateur radio operators and makers are using them in purpose built applications such as digital hotspots and home control. You can see more here.

Update: 03/19/2018 — One difference that I failed to note betwee the RPI 3 Model B and the B+ is that while the RPi 3 Model B sported 1 GB of RAM, the B+ cuts it back down to 512 MB. While 512 MB may be enough for your application, if it is not, you may with to stick with the original RPi 3 Model B.

Update: 05/03/2018 — I have verified that RPi 3 Model B+ does still have 1 GB of RAM.  The reference to 512 MB RAM came from the specifications listed on the RPi Foundation web page when originally released.

2018 SWL Fest Talk Links

Here are the links mentioned in my 2018 SWL Fest presentation, “RTL-SDR: more SDR on the cheap!”

Receiving NRSC-5 by Theori
NRSC-5 Proof of Concept Code
NRSC-5-D Standard
Other NRSC-5 Related Standards
NRSC-5 Metadata GUI by K2DLS
dump1090 blog post
Dire Wolf source code
Xastir wiki
Xastir source code
Raspberry Pi Foundation

Other useful links

Digital Signal Decoder+
Virtual Audio Decoder
DAB Player

If you attended my presentation, thank you for your interest. If you have never attended a Winter SWL Fest and are interested in any aspect of radio reception, consider attending next year. All frequencies from DC to Daylight are fair game.