QK4

Remote control software for the Elecraft K4

Active Development — QK4 is currently in beta. Expect bugs and frequent updates as features are refined.
New releases and demos on YouTube @AI5QK — Follow for updates
QK4 connected to an Elecraft K4 showing spectrum and waterfall display on 40m CW

The first fully cross-platform remote control application for the Elecraft K4. Built to bring the complete K4 operating experience — every control, meter, and display — to macOS, Windows, and Raspberry Pi. Operate your K4 from anywhere on your network, exactly as if you were sitting in front of it.

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About

QK4 was created to fill a gap in the Elecraft ecosystem — a native, purpose-built remote control application that runs on any platform. No emulators, no workarounds, no compromises. Full spectrum and waterfall display, dual VFO control, audio streaming, and CW/voice operation over your local network.

Links

Requirements

macOS macOS 14 (Sonoma) or later
Apple Silicon (M1/M2/M3/M4)
Windows Windows 11, x64
VC++ Redistributable 2019+
Pi Pi 4 or 5, ARM64
Debian Trixie

Getting Started

macOS Open the DMG and drag to Applications.
Signed and notarized — no Gatekeeper warnings.
Windows Extract the ZIP and run QK4.exe.
Install VC++ Redistributable if prompted.
Pi Extract the tarball and run ./QK4/run.sh.
First run requires sudo to install a udev rule for KPOD USB access. After that, sudo is not needed.

Development & Feedback

QK4 is under active development. New features, bug fixes, and improvements are being worked on regularly. If you run into a problem or have a suggestion, we'd love to hear from you.

View Current Open Issues on GitHub