Showing 116 open source projects for "java open source"

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    Nonprofit Budgeting Software

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  • 1
    HackRF

    HackRF

    Low cost software radio platform

    This repository contains hardware designs and software for HackRF, a low-cost, open source Software Defined Radio platform. HackRF One from Great Scott Gadgets is a Software Defined Radio peripheral capable of transmission or reception of radio signals from 1 MHz to 6 GHz. Designed to enable test and development of modern and next-generation radio technologies, HackRF One is an open-source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation. ...
    Downloads: 67 This Week
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  • 2
    Yet Another APRS Client
    Client software for users of the Automatic Packet Reporting System amateur radio network.
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    Downloads: 597 This Week
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  • 3
    WSJT

    WSJT

    Weak signal ham radio communication

    The WSJT project implements software for amateur radio communication using state-of-the-art digital techniques. Typical applications involve "DXing" at LF, MF, HF, and VHF+ frequencies, including meteor scatter and EME ("moonbounce"). Major emphasis is placed on weak-signal techniques. Summary Program Descriptions: WSJT-X supports the communication protocols FST4, FT4, FT8, JT4, JT9, JT65, Q65, MSK144, WSPR, FST4W, and Echo, each optimized for different sorts of radio-wave...
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    Downloads: 7,701 This Week
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  • 4
    fldigi

    fldigi

    Ham Radio Digital Modem Application

    Fldigi is a modem program for most of the digital modes used by radio amateurs today: CW, PSK, MFSK, RTTY, Hell, DominoEX, Olivia, and Throb are all supported. It can help calibrate a sound card to a time signal and do frequency measurement tests. NOTICE: You must proceed to the Files section to locate the correct fldigi, flrig etal download for your particular operating system. Do not blithely use the big green Download button! Use the "Files" menu item or the "Browse All Files" link.
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    Downloads: 4,177 This Week
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    eProcurement Software

    Enterprises and companies seeking a solution to manage all their procurement operations and processes

    eBuyerAssist by Eyvo is a cloud-based procurement solution designed for businesses of all sizes and industries. Fully modular and scalable, it streamlines the entire procurement lifecycle—from requisition to fulfillment. The platform includes powerful tools for strategic sourcing, supplier management, warehouse operations, and contract oversight. Additional modules cover purchase orders, approval workflows, inventory and asset management, customer orders, budget control, cost accounting, invoice matching, vendor credit checks, and risk analysis. eBuyerAssist centralizes all procurement functions into a single, easy-to-use system—improving visibility, control, and efficiency across your organization. Whether you're aiming to reduce costs, enhance compliance, or align procurement with broader business goals, eBuyerAssist helps you get there faster, smarter, and with measurable results.
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  • 5
    wsjt-x_improved
    WSJT-X_IMPROVED is published by Uwe Risse, DG2YCB. It is an enhanced edition of the excellent WSJT-X software by Joe Taylor K1JT, Steve Franke K9AN, Bill Somerville G4WJS, myself and others (https://sourceforge.net/projects/wsjt/) that provides several additional features and improvements, as well as more frequent updates and bug fixes. Notes: wsjt-x_improved is experimental and is licensed under GNU GPL v3 (https://www.gnu.org/licenses/gpl-3.0.txt). I am not aware of any adverse...
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    Downloads: 2,413 This Week
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  • 6
    Ham Radio Control Libraries

    Ham Radio Control Libraries

    Library to control radio transceivers and receivers

    The Hamlib project's purpose is to develop flexible and portable shared libraries that offer a standardized API to control any radio oriented equipment through a computer interface.
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    Downloads: 463 This Week
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  • 7
    jtdx_improved
    ═══════════ ▲▲▲ ═════════════════════════════════════════════ Find the various versions on the "Files" tab (https://sourceforge.net/projects/jtdx-improved/files/) jtdx_improved is an enhanced version of JTDX by Igor Chernikov et al. (https://sourceforge.net/projects/jtdx/). Both my and Igor's forks are based on the excellent WSJT-X software by Joe Taylor K1JT, Steve Franke K9AN, Bill Somerville G4WJS, myself and others (https://sourceforge.net/projects/wsjt/). After the succes of my...
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    Downloads: 507 This Week
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  • 8
    Open source libraries and utilities to support using digital signatures for Amateur radio QSL information.
    Downloads: 26 This Week
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  • 9

    unixcw

    Morse code library and applications for GNU/Linux

    Umbrella project for cw, cwcp, xcwcp, cwgen programs, and for libcw library.
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    Downloads: 16 This Week
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    G-P - Global EOR Solution

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  • 10

    SmallPortableRotator

    Portable rotator for amateur satellite tracking

    Small Portable Rotator: a simple, lightweight, self-consistent antenna rotator for amateur radio satellite tracking, plus an optional portable controller. *** CHANGELOG *** [version 1.0]: - Added tighter control over rotation limits - Fixed some minor bugs - With the 'V' command the version is displayed and no longer the "built filename"
    Downloads: 2 This Week
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  • 11
    Filt8- v3.6 alerts for WSJT-X FT8

    Filt8- v3.6 alerts for WSJT-X FT8

    Alert and filter QSO for WSJT-X FT8 FT4

    THIS VERSION HAS A TABLE VIEW FOR SYSTEMS THAT DO NOT SUPPORT LARGE GRAPHIC DISPLAYS SUCH AS LOW-END LAPTOPS. CHECK OUT ft8mapper FOR BETTER GRAPHICS AND GRID TRACKING. Filt8 - v3.6 release - Requires Python 3.x (3.10 or higher on Mac) Scrollable maps for small screens State data as of Feb 25, 2024. Map saves settings. Map features: filter by band, click to Lookup. Offline Maps to show station grid locations as you decode them in real-time (Check out js8mapper project on ...
    Downloads: 5 This Week
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  • 12
    The POTA File Cleaner takes an adi file exported from logging software and removes all superfluous aid fields from each QSO record in the log while preserving the minimum adi fields necessary for POTA activator log uploads and organizes the fields for easy review if there are any issues uploading the activator log to the POTA App site. This updated version will also automatically generate an adi file for multi-park (n-fer) activations by listing all park numbers separated by a...
    Downloads: 1 This Week
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  • 13
    OHHamLogger

    OHHamLogger

    OHHamLogger on helppokäyttöinen radioamatöörilokiohjelma,

    OHHamLogger on helppokäyttöinen radioamatöörilokiohjelma, joka tukee ADI 3.1.0 -formaatia ja WWFF-lokien tallennusta. Ohjelma on suunniteltu erityisesti suomalaisia radioamatöörejä varten, mutta tukee myös englannin kieltä. Pääominaisuudet ✅ Täysi ADI 3.1.0 -tuki ✅ WWFF-lokitus ✅ Nopeat pikakomennot ✅ Lokien yhdistäminen ✅ Monipuolinen teemavalikoima ✅ Kaksikielisyys (suomi/english) ✅ Reaaliaikainen duplikaattitarkistus ✅ Tilastot ja analyysit Ohjelma tunnistaa automaattisesti...
    Downloads: 0 This Week
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  • 14

    IO91pm

    Command-line calculator for Maidenhead- (QTH-, QRA-) Locators.

    Keywords: Hamradio, Radio-amateurs, Maidenhead-, QTH-, (QRA-), Locator, Distance and Bearing Calculator, GNU/Linux command-line, LaTeX,- UTF-8-, ASCII-output, GPLv3; based on GM4ANB's book. "IO91pm is the Maidenhead-Locator for Maidenhead" ========================================= Background --------------- * For another little project, I wanted a QTH-Locator calculator for the UNIX (GNU/Linux, bash) command-line. * There are many, some very good, online QTH resources, but I wanted...
    Downloads: 0 This Week
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  • 15
    MATTA

    MATTA

    Morse Code Utilitiies to convert text messages to & from sound files.

    This is a commandline utility that converts a WAV sound file containing morse code to English text. Pre-built binaries run on OSX, MsWindows, & GNU/linux. It is written in Ada, so can be rebuilt on any platform with an Ada compiler. The input wav file must be monaural, with a 16-bit signed integer encoding, and a sample rate of 8000 Hz. Either sox or audacity can easily transform to this format. The wav file is expected to be international morse code, preferrably clean and properly...
    Downloads: 0 This Week
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  • 16

    MFJ-993b Web Remote

    Arduino Mega 2560 + Ethernet Shield to Drive 8 Relays for MFJ-993b

    Arduino Mega 2560 Code to that supports a standard Ethernet Shield . i.e. Drive Relays hence outputs to MFJ-993b. Supports Up and Down for manual L and C Tuning, Autotune On/Off, Antenna Selection 1/2 and 100ms Short /1000ms Long for Tune. Op Note 1: You may need additional power for the 5V relay board; sometimes you can power the 5V relay board from the Mega 2560 - but reset/start the device first and then connect power to the relay board. Op Note 2: You will need determine...
    Downloads: 0 This Week
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  • 17
    CWStudio
    CWStudio is a portable almost library-independent and computationally efficient generator of CW signals for telegraphy training purposes. It can create a sound with maximum similarity to the real air, simulating many difficulties.
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    Downloads: 13 This Week
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  • 18

    Inductor Turns Calculator

    Calculate number of turns needed to produce a coil with given L

    Avoid by-guess-and-by-golly use of turns-to-inductance calculators to determine number of turns to yield the inductance you need. Using the inversion of Wheeler's formula for inductance of single-layer coils, calculates the number of turns required to produce a specified inductance. Specify desired inductance, coil radius, and winding pitch.
    Downloads: 0 This Week
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  • 19
    Gpredict

    Gpredict

    Real time satellite tracking and orbit prediction

    Gpredict is a real-time satellite tracking and orbit prediction application. Gpredict can track an unlimited number of satellites and display the data in tables and various graphical view.
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    Downloads: 429 This Week
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  • 20
    Panoramic RTL-SDR directly

    Panoramic RTL-SDR directly

    Open source RTL-SDR Panoramic Spectrum Analyzer

    This utility 'rtl_sdr_panorama.exe' designed for panoramic imaging spectrum REALTIME any (reasonable) band by accumulating within 0.5 second spectral samples of limited bandwidth for simultaneous monitoring (speed via USB, usually within 2...3 MHz) c DVB- chip based RTL-2832/R820 (13...1864 MHz). Controlled parameters: 1. Dongle Phone system. 2. Initial scan, Hz. 3. Endpoint scan, Hz . 4. Spacing scanning ediitsy tens kHz/MHz. 5. Noise level, dB. 6. Magnitude clock frequency...
    Downloads: 19 This Week
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  • 21

    DvapFM

    Utility for exercising DVAP Analog FM Capability

    Implements an analog FM transceiver using the DVAP Hardware
    Downloads: 0 This Week
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  • 22
    gpsfeed+

    gpsfeed+

    A software gps simulator

    A software gps simulator, providing TCP/IP, UDP, http and serial port connectivity in NMEA 0183, XML or user defined output format. Usable for testing all kinds of GPS applications. Can playback pre-recorded GPS files with NMEA output.
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    Downloads: 27 This Week
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  • 23
    finds exact gain, directivity and input impedance of Yagi or log-periodic antennas (planar symmetric array of cylindrical dipoles, many driven elements) for a range of specified frequencies, integrates 2D for segments on the same element, moment method
    Downloads: 0 This Week
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  • 24
    Gqrx software defined radio receiver

    Gqrx software defined radio receiver

    Software defined radio for Linux and Mac

    Gqrx is a software defined radio receiver powered by GNU Radio and the Qt GUI toolkit. It can process I/Q data from many types of input devices, including Funcube Dongle Pro/Pro+, rtl-sdr, HackRF, and Universal Software Radio Peripheral (USRP) devices.
    Downloads: 21 This Week
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  • 25
    FreqLength

    FreqLength

    Wavelength Calculator

    FreqLength is a simple wavelength calculator that takes a given frequency as input and spits out various wavelength values for that frequency (full wave, half wave, etc.) If you'd like to donate there's several ways to do so: PayPal: https://paypal.me/gerowen Bitcoin (BTC): bc1q86c5j7wvf6cw78tf8x3szxy5gnxg4gj8mw4sy2 Monero (XMR): 42ho3m9tJsobZwQDsFTk92ENdWAYk2zL8Qp42m7pKmfWE7jzei7Fwrs87MMXUTCVifjZZiStt3E7c5tmYa9qNxAf3MbY7rD LiberaPay: https://liberapay.com/gerowen
    Downloads: 0 This Week
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