ReticulumHF

Overview

Runs Reticulum over HF radio using FreeDV data modes.

Quick Start

1. Flash to SD card using Raspberry Pi Imager
2. Insert SD card, connect radio via Digirig, power on
3. Connect to WiFi: ReticulumHF (password: reticulumhf)
4. Open http://192.168.4.1 in browser
5. Complete 6-step setup wizard
6. Connect Sideband to 192.168.4.1:4242

Setup Wizard

1. Select Radio - Choose from supported radios (tested radios marked)
2. Radio Settings - Configure your radio with the displayed menu values
3. Hardware Detection - Automatically detects Digirig, serial port, audio device
4. Test Connection - Verify CAT and PTT (or check "Using VOX mode" for audio-only)
5. Network Security - Optional IFAC encryption for the gateway
6. Start Gateway - Launches services and redirects to status page

IMPORTANT: All stations must use the same FreeDV mode to communicate. Coordinate with other operators before changing modes.

Network Configuration

Setting	Value
WiFi SSID	ReticulumHF
WiFi Password	reticulumhf
Gateway IP	192.168.4.1
Web Portal	http://192.168.4.1
RNS Gateway Port	4242 (all clients)
SSH	pi / reticulumhf

Client Connections

All clients connect using TCP Client Interface on port 4242.

Sideband / Columba: Settings → Connectivity → Add Interface → TCP Client

Setting	Value
Interface Type	TCP Client Interface
Address	192.168.4.1
Port	4242

MeshChat: Settings → Interfaces → Add → TCP Client Interface

Setting	Value
Interface Type	TCP Client Interface
Target Host	192.168.4.1
Target Port	4242

Note: If IFAC is configured on the gateway, clients must use matching IFAC Name and Passphrase.

What's Included

• Raspberry Pi OS Bookworm Lite (64-bit)
• RNS (Reticulum Network Stack)
• freedvtnc2 (FreeDV modem)
• codec2 (built from source)
• Hamlib rigctld (CAT/PTT control)
• Web portal with setup wizard and status dashboard

---

References

• Reticulum Manual
• codec2 Data Modes
• freedvtnc2
• Sideband
• MeshChat
• Hamlib Supported Radios