ctcss

Satellite Tracking & Communications — satellite tracking with built-in Hamlib Doppler & Rotator controls, SDR supports, AX.25, APRS, FT4, Q65, Image reception(built-in SatDump), AI CW decoding, telemetry decoding(built-in gr-satellite) and EME.

Generates CTCSS tones for ham radio

DSD-FME digital voice decoder with a web UI: spectrum, waterfall, trunking, call log and radio map.

Open-source macOS Bluetooth intercom and bidirectional audio routing utility. Latest version added device selection in Mac Menu Bar.

A CTCSS Encoder using the SiLabs C8051F531A MCU. Describes the hardware (schematic and images of the prototype) and includes all source code for the application.

CTCSS tone generator in Rust based on RP2040 microcontroller using PDM.

Pocketable Raspberry Pi 4 + MikroTik mAP lite RF scanner with CTCSS/DCS tone decoding (built for situational awareness at horse shows, fairgrounds, outdoor events) + toggleable DefCon-Mode captive-portal Rickroll. Receive-only by design; talk-back is on the operator's own licensed radio.

CTCSS tone generator using DDS

Yaesu FTS-8 CTCSS Replacement (Encoder Only)

Arduino Nano replacement for Icom UT-34 CTCSS module