Fldigi focuses on operating digital modes in amateur radio using a computer's sound card. It is catalogued under Lifestyle & Personal on PulseGate.

fldigi is a consumer product built for amateur radio operators.

Is fldigi still maintained?

Unverified. fldigi has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to fldigi?

Similar projects tracked by PulseGate include RepairSolutions2, Yatri Sathi - Ride Booking App, and Bhanu.

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fldigi

Name: fldigi
Author: W1HKJ

FlathubLifestyle & Personal

Fldigi is a free software modem application for amateur radio operators. It supports a wide variety of digital modes including CW, PSK, MFSK, RTTY, Olivia and others. The program interfaces with a computer's sound card to transmit and receive signals and includes tools for frequency measurement and time signal calibration.

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Overview

6 features

fldigi is a Lifestyle & Personal project. It focuses on operating digital modes in amateur radio using a computer's sound card. fldigi is a consumer product aimed at amateur radio operators. fldigi costs nothing to use. It runs on Linux.

W1HKJ builds and maintains fldigi. Among its 6 catalogued features are Digital Modes, Sound Card Modem, and CW.

Digital Modes
Sound Card Modem
CW
PSK
RTTY
Frequency Measurement

Built with & integrations

Runs on

Linux

Trust & compliance

Verified signals

HTTPSFree tier

Indexing history

What PulseGate has recorded for this listing

Indexed21 Jul · 20:19 UTC
fldigi verified against its public source
Source: PulseGate · Open

Frequently asked questions about fldigi

What is fldigi?: Fldigi focuses on operating digital modes in amateur radio using a computer's sound card. It is catalogued under Lifestyle & Personal on PulseGate.
Who is fldigi for?: fldigi is a consumer product built for amateur radio operators.
Does fldigi have a free plan?: Yes — fldigi is free to use.
What platforms does fldigi run on?: fldigi runs on Linux.
Is fldigi still maintained?: Unverified. fldigi has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to fldigi?: Similar projects tracked by PulseGate include RepairSolutions2, Yatri Sathi - Ride Booking App, and Bhanu.RepairSolutions2 Yatri Sathi - Ride Booking App Bhanu
Who makes fldigi?: fldigi is developed by W1HKJ.

At a glance

Platforms: Desktop
Languages: English
First seen: 21 Jul 2026
Built for: amateur radio operators
Model: B2C
Solves: Operating digital modes in amateur radio using a computer's sound card.

Registered as

Flathub: com.w1hkj.fldigi

Developer

W1HKJ

Live coverage

Identity confidence: Medium · 70
Indexed: 21 Jul 2026
Lifecycle: Alive
First seen: Jul 2026
Last seen: 21 Jul 2026

Identity audit (13)

Slug: fldigi-flathub-org
Lifecycle state recorded: 21 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 21 Jul 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Taken from the project's own store listing.
Languages from: Detected by a language model from page content.
Last updated: 3 Aug 2026
Canonical URL: https://flathub.org/apps/com.w1hkj.fldigi

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Also in Lifestyle & Personal

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