Search results

GPSTime is a small freeware applet that corrects your PC clock using GPS. GPSTime reads the serial data coming out of your GPS receiver and decodes the $GPRMC messages to determine the precise UTC time. Works on Windows Vista/7/8/10 with PC with serial ports.

The free CW Speed Training Software for Windows by JI0VWL

A homebrew four elements log periodic antenna for HF bands

WorkedFields is a windows free software to displays a map showing the amateur radio field squares contacted and logged in using a third-party logging program.

Radio Free Europe / Radio Liberty is an international news and broadcast organization serving Central and Eastern Europe, the Caucasus, Central Asia, Russia, the Middle East and Balkan countries.

This is a group for CBers, Sidebanders, Amateurs and Freebanders. Items to be discussed are CB, Skip, Skeds, DX communications, SSB, export radios, Radio equipment, mods, ham radio, repairs, electronics, CW, PSK31, RTTY, digital, and different radio shops.

Around 200 electronic circuits in pdf format or images, There are also over 1000 links to useful electronics, freeware, open source websites. There are some 100 useful documents, software and pcbs too. Mainly industrial electronics, instrumentation. Covers Various aspects of electronics and basics of circuit design.

Independent non-profit-making federation that try to act as the link between the listeners and the free radio stations

Soundmodem is a free software defined dual-port Packet-Radio TNC that implement a soundcard as a modem and supports AX.25 protocol. Soundmodem has been tested on Windows XP, Vista, 7, 8, 10 and has proved stable in operation. The Soundmodem may be used to build EMCOMM, APRS, BBS, Node station, for satellites

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.

The RadioFrequency Program is a professional Software dedicated to all HAM, SWL and Radio Listeners. Freeware. Included is a Text-CSV dBase Converter. Connection to the ICOM R8500 Receiver. Special Scanning Feature. Special Search Feature x large dBase.

A group for the purpose of buying-selling-trading SW receivers and scanners only. Free and mainly for individuals.

iSpectrum is a free spectrum analyzer for MacOS that allows you to display live audio in a standard frequency plot, waterfall display or in a stereo oscilloscope view. Used by ham radio operators, audiofiles, musicians, and Sound Technicians.

Wouxun KG-UVD1P Tips And Hints For Eyes-Free Operation

Constructing a high-power 70cm solid-state amplifier presents unique challenges, particularly when aiming for 500 watts output using modern LDMOS devices. This resource details the author's experience building a 70cm amplifier based on a _Freescale MRFE6VP5600H_ transistor, initially from an RFHAM kit. It meticulously outlines the necessary modifications to achieve advertised performance, including optimizing input and output matching, correcting bias circuitry, and ensuring proper output balun connections for stability. The author shares specific adjustments, such as trimming the prototyping board for better transistor fit, drilling additional mounting holes for improved heat sinking, and replacing original matching capacitors with a single _20pf MIN02 metal mica_ for superior output. A critical fix involved jumpering gate decoupling pads to balance the push-pull transistor halves, which increased output to 580W and improved IMD. The resource also highlights a crucial correction to the output balun connection, initially reversed in the _Dubus_ article schematic, which resolved intermittent stability issues. Test results are provided, showing input power, output power, and drain current at 50V, demonstrating the amplifier's performance after modifications. This practical account offers valuable insights for hams undertaking similar high-power UHF amplifier projects, especially those working with LDMOS devices and kit-based constructions.

A simple free running oscillator oscillating at the receiver\'s IF (intermediate frequency) beats with the incoming signals in either CW or SSB and the resultant audio frequency goes to the AF amplifier.

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

Solar panels, solar and wind home power systems, pre-wired power panels. Wholesale prices for everybody. Free solar design.

iOS EchoLink client, this free app will allow licenced ham radio operators to use iPhone, iPad or iPod devices to connect to the echoLink system and connect to repeaters or other echolink users.

Democratic Voice of Burma is a multimedia organization focusing on Burma - Myanmar. We provide impartial news, information and analysis about Burma. We have two hour daily radio broadcast to Burma via short wave, promoting press freedom, democracy and human rights. Our news is available in Burmese, English, Arakan, Chin, Kachin, Karen, Karenni, Kayan, Mon and Shan languages.

Sharing the stories of Pacific radio, an on-line archive and resource. Includes searchable databases, articles, images, store, newsletter, research, advocacy, publishing, radio heritage documentary production and more. Free membership worldwide.

Complete guide to receive weather satelite images with a RTL SDR dongle and free software

This page describes how to set up RaspBerry Pi Linux system with already configured AX.25 softwares on SD or micro SD cards

Free programming software for the Yaesu VX-6 and VX-6R.

This app permit to work in DigiModes using the latest free version of HamRadio Deluxe Suite 5.24.0.38 with the new Yaesu FT-991 (which is not supported in that version of the application) using the Yaesu FT-950 model in HRD

Free windows software to program or reset cara ht olinca th888a and th888S th888 th10 th2100 th2uv th9 handheld VHF UHF two way radios

Comitato Regionale Veneto della Federazione Italiana CB - Servizio Emergenza Radio.

This online database, called HAMLOG, can be used free of charge by any radio amateur worldwide.

Free programming software for the Yaesu VX-5 and VX-5R

Master the Ham Radio license exams with Ham Technician, Ham General and Ham Extra! With these free iPhone applications, you will take the test with confidence.

A lot of good things, not for QRP fans.

ord- Bretagne France includes info on dx and sstv, in French

Presents a dedicated logging solution for amateur radio DXpeditions, addressing the unique operational demands of remote or temporary stations. This freeware Windows application provides essential tools for managing QSO data, ensuring accurate record-keeping during high-volume operations. The software supports efficient entry and retrieval of contact information, crucial for verifying DXCC credit and submitting contest logs. It streamlines the process of logging contacts, which is vital when operating from rare entities or during intense pile-ups, helping operators maintain focus on making contacts rather than complex data management. The application aims to simplify the logistical challenges associated with DXpedition logging.

QRZ.com Free app for iPhone iPad let you search the QRZ.COM call sign database from your mobile device. Completely free with no subscription required.

RSN International DX Group, free and relatively big club for all DX'ers!

An High voltage power supply design by F1FRV

A free PDF from NASA about cubesat. Basic Concepts and Processes for First-Time CubeSat Developers. A great introduction document dedicated to Cubseat developers.

A 2 elements delta loop antenna for 14 MHz with a MMana simulation file, dimensions, pictures of this aluminium tube based delta loop antenna, and matching system details.

WinXXDataConverter is a Windows GUI application that will convert files between the various formats used by Win92, Win93, Win95, and Win96.

Tips and tricks to start working Meteorscatter with WSJT. Author: PE1AHX

VHF/UHF Contest Logger is a windows freeware contest log program that supports ARRL VHF/UHF contests and other popular VHF contests

APRS-Webserver, that presents aprs-data and maps for free using Google Maps api. The position data is imported from aprs.org, winlink.org and echolink.org. The map data are partially commercial and free. This server is for amateur radio purposes only.

SkookumLogger is a free contest logging program for Mac OS X 10.7 or later, supporting CW and SSB events on the six HF contest bands plus 6m, 4m, 2m, and 70cm

Demonstrates a specialized DX cluster monitoring application, _DxWatcher_, designed for Windows environments. It processes DX spots received via Telnet/Internet, presenting them in a filtered table and a dynamic bandmap. The software integrates with transceivers, specifically the FT-2000, to read VFO frequency and enable one-click tuning to spotted stations. _DxWatcher_ version 1.0.3.0, released on 13 June 2020, includes minor bugfixes and improvements such as enhanced recovery from suspend mode. Key features include configurable bandmap position and size, automatic opening, and bolding of spots received within the last **10 minutes**. The application utilizes the standard _ctry.dat_ file for DXCC country analysis, allowing users to update it for current DXCC status. Source code, developed in C# with MS Visual Studio 2008, is freely available, encouraging modification and sharing while requesting retention of the original author's callsign.

Le Club radio-amateur Beziers

The requested resource, identified by the title "Micamold XTR" and description referencing the _Micamold XTR-1_ transmitter manufactured in 1948 by MICAMOLD Radio Corp., is currently unavailable, returning a 404 error. This indicates the specific content detailing the vintage radio equipment, its technical specifications, or historical context is not present at the given URL. The original intent was likely to provide information on this particular piece of antique radio gear, potentially covering its design, operation, or restoration aspects relevant to collectors and enthusiasts of historical amateur radio equipment. The absence of the page means no technical details, schematics, or operational insights regarding the _XTR-1_ transmitter can be retrieved. Users seeking information on this specific "boat anchor" radio would need to pursue alternative sources or attempt to contact the original website owner directly, as suggested by the QSL.net error message. The QSL.net platform, which hosts over 30,000 individual amateur radio websites, provides free services but does not maintain the content of individual hosted pages.

The mission of the Trusted QSL Group is to keep eQSL an open and free activity for amateur radio operators by promoting the Digital Signature Standard (DSS).

A free photo hosting service for amateur radio. Upload your own photos or browse through what others have uploaded.

The IFR-100 PMR446 radio, developed by ICIT Co., Ltd., incorporates a unique _private speaker_ function. This feature enables users to receive communications discreetly, preventing audio from being broadcast aloud from the radio's internal speaker. Instead, the operator can hear transmissions exclusively through a connected earpiece or similar accessory, facilitating private talk mode operations. ICIT Co., Ltd. positions itself as a primary developer and manufacturer of PMR446 equipment within Korea. Their product line emphasizes innovative features designed to enhance user privacy and operational flexibility in short-range, license-free radio communications. The company's focus is on delivering specialized two-way radio solutions. The resource highlights the company's manufacturing capabilities and its commitment to developing distinct functionalities for the PMR446 market. It underscores their role in providing specific communication tools for users requiring secure and private audio reception.

GUI for the KK7KA Wolf software, that was originally written as command line interface only. Wolf is a weak signal software