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Best Single-Board Computer for GopherTrunk
The best single-board computer for GopherTrunk is a Raspberry Pi 5 — it’s fast enough for several SDRs, sips power for 24/7 use, and has the deepest Linux support of any SBC. Because GopherTrunk is pure Go with ARM/ARM64 builds, it runs on almost any Linux board with a USB port, so a low-cost SBC makes a perfect always-on, headless scanner beside the antenna.
Key takeaways Best overall: Raspberry Pi 5 (8GB, ~$80). Best value: Raspberry Pi 4 (4GB, ~$55). Cheapest / tiny: Pi Zero 2 W (~$18, one channel). Most power (multi-SDR): Orange Pi 5 / Radxa Rock 5B (RK3588). Skip the Jetson — GopherTrunk doesn’t use its GPU. Add an SDR + antenna and it’s a complete scanner. No host decodes AES encryption.
Quick picks
Raspberry Pi 5 (8GB)
around $80
Fast quad-core, PCIe for NVMe, low-power. Handles multiple SDRs and runs GopherTrunk headless 24/7 with the best community support.
Pi 5 on Amazon →Raspberry Pi 4 (4GB)
around $55
More than enough for one or two SDRs, huge community, cheap. The safe default if the Pi 5 is out of budget.
Pi 4 on Amazon →Orange Pi 5 / Radxa Rock 5B
around $90–150
RK3588-class boards for a multi-SDR pool or wideband channelizing. Less turnkey OS than Raspberry Pi OS, but a lot of horsepower.
Orange Pi 5 on Amazon →Pi Zero 2 W / Le Potato
around $18–35
Enough to follow a single control channel with one RTL-SDR. RAM/CPU-limited — not for wideband or multi-SDR.
Pi Zero 2 W on Amazon →Full comparison
| Board | CPU / RAM | Power | Best for | Approx price |
|---|---|---|---|---|
| Raspberry Pi 5 | Quad A76 / up to 8GB | Low | Best all-round; multi-SDR | ~$80 |
| Raspberry Pi 4 | Quad A72 / up to 8GB | Low | Value; 1–2 SDRs | ~$55 |
| Pi Zero 2 W | Quad A53 / 512MB | Tiny | One control channel | ~$18 |
| Orange Pi 5 | RK3588S / up to 16GB | Med | Multi-SDR / wideband | ~$90 |
| Radxa Rock 5B | RK3588 / up to 16GB | Med | Fastest; PCIe/NVMe | ~$150 |
| ODROID-N2+ | A73+A53 / up to 4GB | Low | Well-supported Pi alt | ~$110 |
| Banana Pi BPI-M7 | RK3588 / up to 16GB | Med | Capable RK3588 | ~$180 |
| Le Potato | Quad A53 / up to 2GB | Low | Cheapest Pi alt | ~$35 |
| NVIDIA Jetson Orin Nano | A78AE + GPU | Med | Overkill (GPU unused) | ~$250 |
GopherTrunk is CPU-only. It never touches a GPU or NPU, so an AI board’s accelerator is wasted on scanning. Spend on RAM and CPU cores if you’ll run a multi-SDR pool, not on a Jetson.
What GopherTrunk needs from an SBC
GopherTrunk is deliberately light on its host — it’s a pure-Go static binary with no vendor toolchain, so “will it run?” almost always answers itself. What matters is how much you ask of it:
- Architecture. GopherTrunk ships ARM64, ARMv7, and amd64 builds. Nearly every modern SBC is ARM64 — drop the binary on 64-bit Linux and it runs.
- CPU. Following one trunked system with one RTL-SDR is light real-time DSP — a quad-A53 (Pi Zero 2 W, Le Potato) handles it. A multi-SDR pool or wideband channelizing of several control channels wants more cores and clock — a Pi 5 or an RK3588 board.
- RAM. ~512 MB covers a single channel; 2–8 GB is comfortable once you add the web console, call recording, and several systems at once.
- USB. One free USB 2.0+ port per dongle. RTL-SDR’s ~2.4 MS/s is trivial; a wideband Airspy capture pushes real USB bandwidth, and multiple dongles want a powered hub. USB 3 ports (Pi 4/5, RK3588) give the most headroom.
- Storage. An SD card is fine to start; eMMC or NVMe (Pi 5, Rock 5B) is faster and more durable for 24/7 recording and the call database.
- Power & heat. Low draw suits an always-on box by the antenna; RK3588 boards run hot under load and want a heatsink/fan.
- Networking. Ethernet or Wi-Fi lets you run it headless and reach the web console from your phone or laptop.
In short: one dongle, one channel → any SBC. Recording, several systems, or wideband multi-site → more cores, more RAM, USB 3, and faster storage.
How to choose
- Want the easy, best-supported path? Raspberry Pi 5 (or a Pi 4 to save money). Raspberry Pi OS + the huge community make setup painless.
- Running many SDRs or wideband multi-site? An RK3588 board — Orange Pi 5 or Radxa Rock 5B — has the cores and RAM headroom.
- Tiny budget / one channel? A Pi Zero 2 W or Le Potato will follow a single trunked system.
- Already own a board? If it runs Linux and has a USB port, GopherTrunk almost certainly runs on it — download an ARM build and try it.
Turn it into a scanner
An SBC is only the host. Add an SDR dongle, an antenna, an SD card, and power, and you have a complete standalone GopherTrunk scanner you can leave running by the window. The full parts list is in what hardware do I need, and the step-by-step is in run GopherTrunk on a Raspberry Pi.
Bottom line
For almost everyone, a Raspberry Pi 5 (or a Pi 4 on a budget) is the best single-board computer for GopherTrunk — cheap, low-power, and endlessly documented. Reach for an RK3588 board only if you’re driving several SDRs at once, and skip the Jetson unless its GPU is for something else. The host never changes the encryption wall — so buy the cheapest board that fits your channel count.
Frequently asked questions
What is the best single-board computer for GopherTrunk?
A Raspberry Pi 5 (8GB) is the best all-round choice — fast enough for multiple SDRs, low-power for 24/7 use, and the best-documented Linux SBC. A Raspberry Pi 4 (4GB) is the value pick, and a Pi Zero 2 W works for a single control channel on a tight budget.
Can a Raspberry Pi run GopherTrunk?
Yes. GopherTrunk is pure-Go and ships ARM/ARM64 builds, so it runs on a Raspberry Pi 4 or 5 (and most Linux SBCs) with no vendor toolchain. A Pi is the standard way to run GopherTrunk headless, 24/7, next to the antenna, and reach it from the web console.
How powerful an SBC do I need?
Following one trunked system with one RTL-SDR is light work — even a Pi Zero 2 W or Le Potato can do it. For a multi-SDR pool or wideband channelizing of several control channels, use a Pi 5 or an RK3588 board (Orange Pi 5, Radxa Rock 5B) with more RAM and CPU.
Is an NVIDIA Jetson worth it for GopherTrunk?
No. GopherTrunk uses only the CPU — it has no CUDA/GPU workload — so a Jetson’s expensive GPU sits idle. Buy a Raspberry Pi unless you already want the Jetson for AI projects.
Do I need a computer at all, or just the SBC?
The SBC is the computer. Add an SDR dongle, an antenna, and an SD card, and it’s a complete standalone GopherTrunk scanner. See the full what-you-need checklist.
Does the SBC change what I can decode?
No. The host only runs the software — decoding is identical to a laptop or desktop. And no host, however powerful, can decode AES-encrypted talkgroups; that limit is cryptographic, not computational.