termlogger 26.1.1

A terminal-based amateur radio logging application

TermLogger

A terminal-based amateur radio logging application built with Python and Textual.

Features

• Fast keyboard-driven QSO logging - Optimized for rapid contest and everyday logging
• Real-time dupe checking - Instant duplicate contact detection
• ADIF import/export - Full ADIF 3.1 support for log interchange
• Callsign lookup - QRZ.com and HamQTH integration
• Real-time DX spots - DX cluster spots via HamQTH web API
• POTA spots - Parks on the Air spot integration from pota.app
• POTA park database - Automatic park info lookup with name, location, and grid square
• Rig control - Hamlib (rigctld) and Flex Radio SmartSDR integration with auto-QSY

Operating Modes

• General Logging - Standard everyday QSO logging
• POTA Activation - Parks on the Air activation mode with progress tracking
• POTA Hunter - Hunt park activators and track unique parks worked
• Contest Mode - Contest logging with serial numbers and scoring
• ARRL Field Day - Field Day with class/section exchange and bonus tracking

Installation

Recommended: pipx (isolated environment)

# Install pipx if you don't have it
pip install --user pipx
pipx ensurepath

# Install TermLogger
pipx install termlogger

Alternative: pip

pip install termlogger

From Source (for development)

git clone https://github.com/lacy-digital-labs/TermLogger.git
cd TermLogger
python3 -m venv .venv
source .venv/bin/activate
pip install -e ".[dev]"

Requirements

• Python 3.11 or later
• A terminal with Unicode support

Usage

termlogger

Key Bindings

Key	Action
Tab / Shift-Tab	Navigate fields
Enter	Log QSO
F1	Help
F2	New mode / End mode (toggle)
F3	Clear form
F5	Lookup callsign
F6	Log manager (export/import/archive)
F7	Browse log
F9	Settings
F10	Exit
Ctrl+F	Manual tune (frequency/mode)

Spots Table

• Click on Band column header to cycle through band filters
• Click on Mode column header to cycle through mode filters
• Click on any spot row to auto-fill the QSO entry form
• POTA spots display park info (name, location, grid) when selected

Configuration

Configuration is stored in ~/.config/termlogger/config.json.

Callsign Lookup

To enable callsign lookup, configure your credentials in Settings (Ctrl+S):

• QRZ.com - Requires XML subscription
• HamQTH - Free registration at hamqth.com

Spot Settings

• POTA Spots - Enabled by default, refreshes every 60 seconds
• DX Cluster - Enabled by default, uses HamQTH web API

Rig Control

TermLogger supports automatic radio control through two backends:

Hamlib (rigctld)

# Start rigctld before running TermLogger
rigctld -m <model_number> -r <serial_port>

# Example for Icom IC-7300:
rigctld -m 3073 -r /dev/ttyUSB0

# Find your radio's model number:
rigctl -l | grep <radio_name>

Flex Radio SmartSDR

• Enter the Flex Radio's IP address in Settings
• Default port: 4992 (SmartSDR API)

Features:

• Band indicator shows current frequency/band from radio
• Frequency field updates from rig when focused
• Auto-QSY: clicking a spot changes the radio frequency

Documentation

See the User Guide for detailed documentation.

Version Numbering

TermLogger uses calendar-based versioning: YY.MM.nn

• YY - Two-digit year
• MM - Two-digit month
• nn - Release number within the month (01, 02, etc.)

Example: 25.12.01 is the first release in December 2025.

License

MIT License - See LICENSE for details.

Contributing

Contributions are welcome! Please read CONTRIBUTING.md before submitting pull requests.

All contributors must agree to the Developer Certificate of Origin (DCO) by signing off on their commits. See the contributing guide for details.