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Online Log 9U4U

A Bluetooth Headset Interface with built-in PTT for Amateur Radio by Bertrand Zauhar, VE2ZAZ

Excellent article and guide to choose the best RF power amplifier that fit your needs by ON4SKY

This is a collection of emails collected over time which indicate how to put some mods into your Sierra transceiver. Most of the mods have to do with improving the power output.

W9dc north america amateur radio checkpoint for iota islands on the air and wlh world lighthouse award applications and award instructions

CAARA, an ARRL affiliated club, operates the 2 meter W1GLO repeater on 145.130 MHz

Antenna element holders, antenna parts, aluminium tubing, fiberglass tubing, connectors and antenna mounts and hardware by Eidolon AS

Ham radio wire antennas are the most common form of antenna used by ham radio operators. Here you can find hints and tips on diy wire antennas

a Podcast for amateur radio enthusiasts... by jeff davis, ke9v

eHam users reviews on the TS-480SAT

Basic guidelines for proper placement of an amateur radio mobile antenna

This website explains coverage and construction for our repeaters. Includes useful links and an insight into the Ham community in Rhode Island

This site is devoted to promoting RSQ as an improved signal reporting system for narrow band digital modes and to demonstrating its application to the popular PSK31 mode.

York Region Amateur Radio Club, one of Canada's largest

The Pikes Peak FM Association is a nonprofit, amateur radio VHF/UHF group which operates and maintains VHF and UHF communications facilities serving the Colorado Springs and Pikes Peak region.

Amateur, scanner, wi-fi and land mobile antennas and accessories online store

A simple charger designed for charging 12 V sealed lead acid batteries, used by radio amateurs for portable operation Amp-Hr Class used by radio amateurs for portable/emergency operation.

Welcome to the home page for the Lake Area Amateur Radio Klub (K5LRK) located in southern Denton county, Texas

This program converts an ADIF report file from ARRL's Logbook of the World (LoTW) to comma-separated value (CSV) format so that it can be read into a spreadsheet program like Microsoft Excel.

Zveza Radioamaterjev Slovenije

The mark 2 Crossfield Antenna was described in Sprat 76 by Alec, GD3HQR

A 109 pages presentation in PDF File by Jim Brown K9YC on techniques in operatint the top band from a small lot.

Very simple iambic keyer with only two chips

Presents the **BayCom** packet radio system, detailing both its hardware and software components specifically designed for amateur radio use. The resource offers insights into the technical specifications and operational aspects of the BayCom modem, which has been a staple for many German packet radio enthusiasts. It covers the integration of these components within a typical amateur radio station setup, enabling reliable digital communication. Further, the site provides a broader context by including general information about the German packet radio network. This encompasses network topology, operational protocols, and historical developments relevant to packet radio in the region. Users can find details on how to connect to and utilize the existing infrastructure, fostering participation in the local digital amateur radio community.

Conejo Valley Amateur Radio club AA6CV CVARC is an ARRL special service club.

By I0GEJ Weblog - Lidio Gentili

FTB2070 is a memory management program for the VX-120 and VX-170 FM handhelds

Video on Baofeng uv-3r menus

On-line resource that provides practical battery knowledge for engineers, educators, students and battery users alike. The papers address battery chemistries, best battery choices and ways to make your battery last longer.

Basic information about learning morse code

Established around 1968, the Wichita Amateur Radio Society (W.A.R.S.) N5WF provides a central hub for amateur radio operators in the Wichita Falls, Texas area. The society actively supports local ham radio interests, fostering community engagement and technical development among its members. W.A.R.S. is known for its commitment to public service communications and promoting the amateur radio hobby through various activities and educational initiatives. The society's activities often include field operations, technical presentations, and participation in emergency communications drills, which align with its mission to support the amateur radio community. Members frequently engage in _DXing_ and _contesting_, sharing their experiences and knowledge to help others improve their operating skills. The club also maintains local repeaters, providing essential infrastructure for regional communications.

Radio for Peace International (RFPI) is a Global Community Radio Station located in Costa Rica, Central America that broadcasts progressive news on shortwave radio and the internet on topics of Peace, Human Rights and the Environment. RFPI gives a voice to the voiceless by promoting democratic communication.

Eme meteorscatter Aurora Fai Tropo Tep and more about VHF

A University of Florida Student Organization. The W4DFU amateur radio station was established in 1934 and represents the Gator Nation internationally on a daily basis.

An end-fed-half-wave antenna matcher project based on a FT-82-43 core with a 100 pF and 45 pF capacitor in parallel

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.

The QRV.DK platform offers a dedicated **QRZ callsign search engine** specifically tailored for Danish amateur radio operators. It enables users to look up callsigns and ascertain their **Logbook of The World (LoTW)** status, a critical feature for DXers and contesters seeking QSL confirmations. The search functionality facilitates rapid access to operator details within the Danish amateur radio community, streamlining contact verification processes. Beyond callsign lookups, the resource includes a comprehensive repeater list for Denmark, providing essential information for local and regional VHF/UHF operations. This feature supports mobile and portable stations in locating active repeaters, enhancing communication reliability across various bands. The site also curates a collection of ham radio links, serving as a centralized hub for related amateur radio resources.

Assocation des Radio Amateurs Libanais

This retrofit of a GLA-1000 to GI-7B was done by Lawson, W4EMF, in 2002. Modifying The Dentron GLA-1000B for the GI-7B Triode

An article on RFD antennas, resonant feed-line antennas

Provide new, used, and rare Gizmos

A project with schematic to build a receiver for 80 meters band by VK1PK

The author who works successfully via EME on this band wants to describe his own yagi design and give some of hints for the construction. by Heinrich F. Reckemeyer, DJ9YW

Ikeda Shimin (Citizen) Amateur radio Club is the club which consists of Ikeda(JAPAN) citizens.``Sorry...japanese language only.

How to connect a mose key to a pc using the standard RS232 serial ports by F8EHO

Penta Laboratories is a Manufacturer and Distributor of vacuum tubes, capacitors and electron tubes for Broadcast, Industrial, Marine and Avionics applications worldwide.

This project describes the construction of a real CW QRP keyer with a small microcontrolle

Solar Power for Your Ham Station, It is Easier Than You Think QST article April 96 by KE0OG via Repeater-Builider.com

This article describes firmware and minimal hardware for encoding and decoding of on-air CW using an terminal/modem based on these controller boards.

a forum for extra class operators to discuss cw, and extra class operation without the usual friction debates.