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The JACK Audio Connection Kit provides a robust, cross-platform solution for routing audio and MIDI data between various software applications with minimal latency. It addresses the common challenge of directing the output of one program, such as a digital mode decoder or SDR application, into the input of another, like a logging program or audio recorder. Jack audio is a multi platform application, runs on Linux, Windows and MacOS. This virtual audio cable functionality allows for complex signal flows, enabling users to simultaneously send audio from a single source to multiple destinations and even loop it back for recording or further processing within the same or different applications. For amateur radio operators, JACK facilitates advanced configurations for digital modes, contesting, and signal analysis. It supports intricate setups where a single radio's audio output can feed multiple decoders, spectrum analyzers, or recording utilities concurrently. The API is designed for real-time performance, crucial for applications requiring precise timing and minimal delay in audio processing.

Footprint Satellite Tracker is a satellite tracking software that provides real-time monitoring of satellite movements worldwide. It features a global map with celestial markers and allows users to adjust time settings to predict satellite paths. Customizable options include location coordinates and time zones. Users can analyze satellite ephemeris and print reports, though file-saving requires a virtual printer. Despite its research utility, the software supports a limited satellite list and lacks options for manual data source connections. Current version has been tested running on Windows 10.

Demonstrates RadioComm, a freeware Icom transceiver/receiver controller program for Windows, which facilitates memory programming, spectrum analysis, and interfacing with extensive frequency databases. The software allows users to program their Icom radio's memory, generate radio-frequency spectra, and connect the radio to a computer-based frequency database. It supports various Icom models, offering bidirectional control where virtual controls mirror the transceiver's physical controls and vice versa. The program's spectrum analysis feature, exemplified by tuning the WWV time standard at 15 MHz, provides insights into the AM passband, a capability often found in high-end Icom transceivers. While RadioComm offers these functionalities, the author, Paul Lutus, notes that it has been superseded by JRX (a virtual radio) and IcomProgrammer II (a memory programming utility), which are described as superior and compatible with more platforms. RadioComm is available as a 516 KB self-extracting executable, requiring an Icom CT-17 RS-232 interface box for radios that need it. Users can also customize the plain-text database to include unsupported Icom models. However, the author explicitly states that no user support is provided for this free program.

RT Systems provides programming software for Windows operating systems, supporting a wide range of amateur radio transceivers, scanners, and receivers from manufacturers like Icom, Yaesu, and Kenwood. The software facilitates memory management and radio settings configuration, often surpassing OEM software in user-friendliness and functionality. Their **USB programming cables**, featuring **FTDI chipsets**, are noted for reliable operation, even in virtualized environments like Windows ARM on a Mac, where OEM cables might fail. Users report that RT Systems software simplifies the often complex process of radio programming, making it less arduous than manual entry. The availability of integrated frequency databases is a significant advantage. The software and cables are frequently cited for their long-term reliability, effective customer support, and thoughtful hardware design, which collectively address common real-world programming challenges for various radio models, including the Icom ID-880H and Anytone 878.

adsbScope is a freeware Windows application designed for processing _ADS-B_ (Automatic Dependent Surveillance-Broadcast) frames received from a compatible decoder. It identifies aircraft, calculates their real-time positions, and presents flight parameters in both alphanumeric tables and a graphical display. The software interfaces via a virtual COM port, receiving raw frames to provide detailed situational awareness, including a global coordinate grid, continental coastlines, over 4,000 **airport** locations, and major cities. Users can overlay OpenStreetMap tiles and view world state boundaries, with each tracked aircraft rendered with labels showing altitude, speed, heading, squawk code, and flight identifiers. When paired with the adsbPIC-decoder, adsbScope enables advanced hardware control, allowing users to toggle data filters for specific frames like DF17/18/19, adjust analog signal thresholds for reception fine-tuning, and manage system resets or bootloader activation directly from the PC. This functionality provides a customizable toolkit for hobbyist radar listeners, offering a robust alternative to commercial tools for processing aircraft data. The software displays up to **1090 MHz** transponder data and can track aircraft up to 250 nautical miles.

The MCP-F6/F7 software facilitates memory channel and menu data creation for the Kenwood TH-F6A, TH-F7A, and TH-F7E transceivers. It operates on _Windows_ XP (SP3+), Vista (SP2+), Windows 7 (RTM+), Windows 8 (RTM+), Windows 8.1 (RTM+), Windows 10, and Windows 11. System requirements include a CPU faster than the OS recommendation, RAM exceeding the OS recommendation, and **2 MB** of free hard drive space. Display resolution must be XGA (1024 x 768) or higher. Connectivity to the transceiver requires an optional PG-4Y (RS-232) or KPG-22U (USB 2.0) programming cable. The KPG-22U cable necessitates a virtual COM port driver installation. The software supports COM1 through COM20 for RS-232 communication. Installation requires administrator privileges and involves executing "setup.exe" from the extracted MFX101.zip archive. Uninstallation is performed via the Control Panel's "Uninstall a program" function or by re-executing "setup.exe." Created data files are not removed during uninstallation and require manual deletion. The software version is **1.01**. DXZone Focus: Kenwood TH-F6 F7 | Memory Management | Windows | RS-232

VQLog 3.1 - 782 is a shareware logbook program designed for Windows operating systems (95, 98, NT, 2000, ME, XP, Vista, 7, 10, or later), supporting resolutions of 800x600 or higher. It can also operate on macOS and Linux via virtualization software like Virtual PC for MAC, Oracle VirtualBox, or VMware. The software facilitates QSO access by date, callsign, prefix, square, DXCC, and other parameters, offering robust import capabilities for ADIF, Cabrillo, and ASCII files from various contest and logbook programs. Key features include comprehensive award tracking for DXCC, WAZ, WAC, WPX, WAS, IOTA, TPEA, DIE, VUCC, 100EACW, and up to 30 user-defined awards. It generates customizable summaries and graphical statistics for QSO activity, DX contests, Most Wanted Squares (MWS), propagation openings, and prefixes. VQLog supports DX-Spot reception and processing from DX-Cluster and PSK-Reporter with programmable warnings, integrates with callbook services like QRZ.COM and Buckmaster's CD, and offers online lookup. Electronic QSL and log upload support extends to LoTW, eQSL.cc, Clublog, and DXMAPS, with real-time updates for online logs. The program provides extended QSO information for VHF-DXers, including separate TX/RX frequencies, start/end times, propagation modes, and specific entry fields for MS, EME, and Tropo. CAT support for rig control and interfaces with ARSWIN and PstRotator for azimuth/elevation control are also included.

With over 20 years of experience, Proyecto 4 operates as a specialized ham radio retailer in Madrid, Spain, providing a diverse inventory of transceivers, antennas, and related accessories. The store features popular models like the _ICOM IC-705_ and _ICOM IC-7300MK2_, alongside Yaesu transceivers such as the _FTX-1 Optima_, which delivers 100W on HF and 50W on V/UHF bands. The product range includes mobile and portable antennas, such as the D-Original DX-NR770HB, offering 3 dB gain on 144 MHz and 5.5 dB on 430 MHz, and the Diamond RH-770 with a BNC connector. CB radio enthusiasts can find the Anytone CB SMART II AM/FM transceptor and the Telecom LS145 mobile antenna, rated for 500W and 4 dB gain on 26-30 MHz. Proyecto 4 emphasizes its in-house technical service, inviting customers to visit their laboratory for repairs and technical consultations via sergio@proyecto4.com. The store also highlights customer reviews and offers promotions like Yaesu Cashback, providing savings up to 100€.

The 11-meter band, often associated with Citizens Band (CB) radio, presents unique challenges and opportunities for long-distance communication, particularly for operators interested in DXing. This group facilitates discussions and information exchange among enthusiasts who operate on this frequency, often utilizing single-sideband (SSB) modulation for improved range and signal clarity compared to traditional AM CB operations. The community provides a platform for members to share experiences, technical insights, and propagation reports relevant to 27 MHz operations. Members engage in discussions covering various aspects of 11-meter DX, including antenna configurations, transceiver modifications, and operating techniques to maximize signal propagation across continents. The forum serves as a central hub for coordinating contacts, sharing QSL information, and celebrating successful long-haul QSOs. Specific topics often include optimizing power output, reducing noise, and understanding solar cycle effects on 27 MHz. The group's activities extend to organizing virtual gatherings and promoting ethical operating practices within the 11-meter DX community. It supports both seasoned operators and those new to the band, fostering a collaborative environment for exploring the capabilities of CB radio beyond local communications.

VSP Manager is a software program that creates serial port pairs which allows software programs to talk to each other using Cat commands. This virtual com port emulator is offered FREE to Ham Radio Operators.

Windows user-mode application, which allows you to create software virtual serial ports and emulate physical serial ports behavior. It operates exclusively in user-mode, therefore it is more stable and uses less memory, processor and operating system resources than any competitive products.

Virtual Serial Ports Emulator for Windows. Virtual Serial Ports Emulator tool (and VSPE API) is free on 32 bit platform and can be used with no charge for any purpose. No registration or activation key is required.

The Icom IC-7300 is a popular HF transceiver among amateur radio operators, known for its advanced features and ease of use. However, integrating it with software like Ham Radio Deluxe (HRD) can be challenging due to compatibility issues. This guide provides step-by-step instructions on how to configure the IC-7300 to work seamlessly with HRD 5.24, the last freeware version available. It covers the installation of necessary drivers, setting up virtual COM ports, and configuring audio settings for digital modes. To begin, users must download and install the Icom USB driver, which creates a virtual serial COM port for communication between the radio and the computer. The guide details how to check for this new port and adjust the CI-V address settings to ensure proper communication. It also explains how to set up the soundcard settings in HRD for digital modes, allowing operators to transmit and receive audio effectively. Following these instructions will enable IC-7300 owners to maximize their radio's capabilities with HRD.

HW VSP is a free software driver that adds a virtual serial port (e.g. COM5) to the operating system and redirects the data from this port via a TCP/IP network to another hardware interface

The Null-modem emulator is an open source kernel-mode virtual serial port driver for Windows, available freely under GPL license.Allows you to create an unlimited number of virtual COM port pairs and use any pair to connect one COM port based application to another.

Software to create virtual com ports when you need to assing different serial ports and you have just one COM port on your PC. Commercial version

QuickSmith provides an online _Smith chart_ for impedance matching, enabling users to drag virtual components onto a ladder network and observe dynamic trace movement. The tool displays live readouts for critical parameters such as VSWR, return loss, insertion loss, loaded Q, and bandwidth. It facilitates auto-matching to **50 ohms** with various network choices and supports _Touchstone_ file import, allowing _NanoVNA_ measurements to be plotted directly for analysis. Beyond basic matching, QuickSmith includes features for frequency and component sweeps, generating S11 and S21 response graphs. It also supports amplifier design, incorporating stability, gain, and noise circles, alongside microstrip and coax synthesis capabilities. The platform offers shareable links, worked examples, and guided tours, making it a practical resource for hams learning about RF circuit analysis and antenna optimization.

Demonstrates ZeusSDR, a WebGL-native station console for _OpenHPSDR_ radios, including Hermes-Lite 2 and ANAN-class transceivers. The software integrates a 2D and 3D WebGL/WebGPU panadapter with click-to-tune functionality, alongside native FT8/FT4 and FreeDV digital voice modes, eliminating the need for external software like WSJT-X or virtual audio cables. It features a protected transmit chain with SWR-trip and TX-timeout, and supports _PureSignal_ linearization on Protocol 2 for enhanced signal quality. The console incorporates a broadcast TX chain with a noise gate, 10-band EQ, compressor, exciter, bass, reverb, and VST3/Audio Unit hosting for advanced audio processing. A comprehensive logbook is included, offering contact history, a 3D NASA globe, DX radar, and analytics for DXCC/WAS/grids, with ADIF and LoTW integration. Amplifier panels for RF2K-S, KPA500, and SPE Taurus are also provided. ZeusSDR supports both OpenHPSDR protocols (P1 + P2) and utilizes WDSP from Thetis. It is available for Windows, macOS, and Linux, with a public listening feature allowing others to view live waterfalls and use virtual receivers with Zeus DSP, including NR, NB, ANF, AGC, and filters. The software is open-engine, following the PowerSDR–OpenHPSDR–Thetis lineage.

Wavelog, a web-based amateur radio logbook application, launched in February 2024, represents a significant fork from the established Cloudlog platform, developed by a core team including DF2ET and DJ7NT. This open-source project focuses on delivering advancements in both stability and functionality, specifically tailored for the amateur radio community. The application allows users to manage their radio logs from diverse environments, including professional servers, standard web hosting, or even compact _Raspberry Pi_ setups. The platform distinguishes itself through its emphasis on simplicity, robust features, and versatile accessibility, enabling operators to log contacts from virtually any location. It supports various operating modes and data formats, providing a flexible solution for tracking QSOs and managing station activities. The project's development is driven by the collaborative spirit of the amateur radio community, prioritizing utility and user experience over commercial objectives. Key features include comprehensive logging capabilities, support for multiple bands and modes, and integration with common amateur radio data standards, ensuring broad utility for DXers and contesters.

The RTL-SDR tuner dongle is a popular tool for amateur radio enthusiasts, transforming a $10 device into a wide-band software-defined radio. This guide outlines using the RTL-SDR as a full-band pan-adapter for conventional receivers, focusing on hardware setup and software integration with HDSDR. Future sections will address RTL-SDR performance compared to native receivers, enhancing digital mode operations with virtual serial ports and audio cables.

PortFlux provides a software-defined virtual serial cable solution for Windows operating systems, specifically supporting x64 and ARM64 architectures. It facilitates the creation of paired virtual COM ports, allowing two distinct applications to communicate as if connected by a physical null-modem cable. The utility is designed to bridge data streams between software requiring serial port access, such as logging programs, rig control applications, or digital mode clients, without the need for physical hardware interfaces. This software addresses the common challenge of connecting multiple ham radio applications that each demand exclusive access to a single physical serial port. By establishing virtual pairs, PortFlux enables simultaneous operation of, for instance, a contest logger and a digital mode program, both interacting with a single transceiver via a shared virtual link. The GitHub repository includes source code, offering transparency and the potential for community contributions or custom modifications.

Dot & Dash is a macOS application for learning and practicing Morse code, providing an interactive environment for aspiring CW operators. The software features **twenty short chapters** that guide users from basic characters like E and T to the full alphabet, figures, punctuation, and common _prosigns_. Users learn by keying characters and words, with a daily five-minute review system to reinforce learning. The application allows users to compose messages, which the virtual machine then sends, or to key messages themselves and observe real-time decoding. It supports various input methods, including holding the Space bar, using a virtual knob, or connecting a USB key/keyer that emulates keyboard input. Operators can adjust sending speeds from **5 to 40 WPM** and apply _Farnsworth spacing_. Further capabilities include converting Morse code to text and vice-versa, and a "Type Anywhere" feature that enables keying Morse directly into other Mac applications. The software operates offline and offers a 24-hour free trial before requiring a one-time purchase for full functionality.

The Gemini Amplifier Remote Control software operates on Windows 7 and above, facilitating remote management of the Gemini HF-1K and DX-1200 amplifiers. Users connect via Ethernet, configuring the amplifier's IP address through the front panel. The software allows seamless band and antenna selection, saving settings for each band without requiring transmission. Integration with _OmniRig_ from Afreet Software, Inc. enables automatic band adjustments based on the radio's frequency changes. Users can configure serial or virtual serial connections, with tracking options accessible through the ribbon bar. The software supports speech functionality, enhancing accessibility for operators. Firmware updates, such as version 2.5Ee, introduce features like background datalogging and power output control, uploaded via FTP. Version 1.2.0 allows users to offload internal parameter data for support purposes. The firmware upload process requires the amplifier's IP address and port 21, taking approximately 90 seconds. Users are encouraged to upgrade to the latest firmware for improved performance and remote diagnostics.