Search results

How to install a BNC connector on a coaxial cable like the ELSPEC1030AF / HPF195RG and 58C/U cables

Kansas Repeaters directory

The Oxley Region Amateur Radio Club, ORARC provides the encouragement for those interested in the scientific development of radio communications and associated electronics.

The basics of using an oscilloscope, this article is meant for thiose with very little or no experience at all with electronics or oscilloscope.

Time Mapper UHD is a versatile mapping and time visualization program offering multi-satellite viewing with frequency display and unique country-pairs for PskReporter data. It features live feeds from logging programs and can plot ADIF files. Ideal for schools, offices, or amateur radio stations, it provides customizable 4K or HD world clock displays with over 60 map layers, including ham radio zones and natural features. The program supports various time functions and can import logs for detailed analysis. It runs on Windows 10 or 11 and offers a 30-day free trial.

The Heard Island DX Expedition March 20 - April 10 2016 official web site

Albania DX Pedition ZA100I 2012

An home made simple spectrum analyzer project includes pictures and diagram.

Dipole antennas, vertical half-wave dipole antennas with impedence tranformes that can be used for portable operations. Some well worn antenna configurations are the easiest and loudest lash-ups you can try.

G1XYZ G3XYZ The Home of Amateur Radio in West Norfolk

KARS was founded in January 2008 and has grown from strength to strength

Chapter 25 hosts the Nebraska QSO Party which will take place in April

Orchard City ham radio club in Kelowna, BC Canada

DX Pedition TX3X Chesterfield Isl. OC-176, 2015 October 1-12

Upper New York Repeater Council, Inc, support the frequency coordination needs of the Amateur Radio repeaters operating in its area

Virgin Islands Amateur Radio Organization

V63XG will be on the air from 4th December 2012

Many antennas and antenna designers neglect the true cause of loss. The major problem using short antennas is the reactance, not the length

The Trident Amateur Radio Club was formed in April 1973.

This page details my building of a 100 Watt Power Amplifier for the 432 MHz Band based on two Motorola MRF646 transistors taking inspiration by Carlo Gnaccarini VK3PY, formerly VK3BRZ

This 10 meter antenna is right out of the ARRL Antenna Book. There are 5 elements on a 24 feet boom and it performs well from 28.0 to 28.9 MHz.

Frequency coordinations on BC Canada

Monthly dx newsletter published by the Carolina DX Association

This device was designed as an SWR and power meter for Radio Amateurs. In addition to SWR, it measures forward and backwards power, therefore can also be used as a wattmeter. With a large measuring range from 1 to 1000 watts, it is suitable for use from QRP to QRO

How to setup the Yaesu FT-847 along to the PSTRotator under Windows 10 PC with Omnirig.

The collinear J-Pole, often known as the Super-J, does improve the behavior over a regular J-Pole. there is an advantage when vertically combining 1/2 radiating sections to have a bit of separation between the half-wave end points. Get 0.8 dB more gain out of the trusty Super-J by replacing the traditional phasing stub with a long coil.

The Precision VXO (PVXO) and its matching Crystal Test Fixture (CTF) were created to provide a low cost means of evaluating the characteristics of crystals and a means of measuring their series resonant frequency.

This unique online tool helps Ham Radio operators to choose the right rotator for medium and large HF antenna systems. The algorithm implemented in this calculator is the result of 40 years of experience in the HF Antenna sector. Given the Wind Speed, the total antenna square area, and the boom length, it will return the calculated torque value.

The Utica Shelby Emergency Communication Association is a group of over 150 hams from all over the Metro-Detroit area

DXPedition from Zimbabwe QSL via SP5UAF

This KX3 go-box weights 1,6 kg including the components and the KX3 with its ATU and filter-option installed (no internal batteries) and a light-weight headset

Experimenting with capacitive antennas for 40 and 80 meters band. A very space-saving antenna with good receivings caracteristics

SMARC provides a list of HF nets available to local Hams with the right equipment. Join one or all of them

The Ontario QSO Party (OQP), an annual event, takes place on the third full weekend of April, specifically from 1800Z April 18 to 0300Z April 19, 2026, and 1200Z to 2000Z April 19, 2026. This **QSO party** encourages stations outside Ontario to contact as many Ontario amateur radio stations as possible, while Ontario stations work both in-province and worldwide. Key rule changes for 2026 include phone QSOs now counting equally with **CW** QSOs (2 points), the introduction of VE3RHQ as a bonus station, a 250m county line proximity definition, and a new Fixed County Line Category, alongside an adjustment of contest times. Established in 1998 by Bob Chandler VE3SRE, the OQP has been managed by Contest Club Ontario (CCO) since 2006. The event contributes to the State QSO Party Challenge, offering various award categories and maintaining records of past performance. Participants can submit activation plans, review Ontario multipliers, and access county maps. Final results and certificate winners are published, and a dedicated groups.io discussion group facilitates community interaction and support for logging software.

SimpleHRR is a free ham radio remote control web application (or web app) hosted by Raspberry Pi in the ham station to remote control a ham radio HF transceiver through a supported web browser from a Desktop PC, Laptop or Android phone. Supports recent ICOM IC-7x series transceivers

TO2D Saint Barthelemy DXpedition web site July 22th to August 4th, 2012.

Win-Test Contest Logger scripts for VGS-1 Voice keyer module for the TS-590 by DK5TX

The Davis County Amateur Radio Club (DCARC) serves as a focal point for licensed amateur radio operators in Davis County, Utah, fostering community and promoting radio communication interests. Members engage in various aspects of the hobby, including local nets, public service events, and technical discussions. The club's activities often involve supporting emergency communications preparedness and providing opportunities for skill development among its members. DCARC maintains a presence in the local ham radio scene, facilitating contacts and knowledge exchange. They frequently participate in events like _Field Day_ and offer resources for those interested in obtaining or upgrading their amateur radio licenses. The club also supports local repeaters, ensuring reliable VHF/UHF communication infrastructure for the region. Their website, dcarc.net, provides information on club meetings, upcoming events, and contact details for prospective members.

Amateur radio station in Bosnia-Herzegovina

A collection of QSL confirming EME contacts

This Field Day Vertical Antenna project is the result of many years of attending various field day sites and realizing that what was needed is a simple, easy to assemble vertical antenna. The design of this Field Day Antenna is not very novel and leverages ideas from Butternut verticals and ARRL publications. The one essential requirement was that the antenna can be raised by just one person. The design of this Field Day Antenna is an above ground mounted ground plane vertical.

Yaesu FT-7800R dual band mobile transceiver reviews

Livonia Amateur Radio Club

Oregon Region Relay Council

This amplifier had the full treatment, including nichrome hairpins, but they had to be removed because of parasitics or instability.

This is a great project to learn about the basics of electronics, batteries, and renewable energy. The finished project can charge a phone or tablet, light up a camp-site, and provide for whatever other small electric needs you have.

TX Marquesas 2019 Nov 6 - 2019 Nov 19, 60-10m; CW SSB FT8 QSL via LoTW official web site

V63XG from 5th to 12th December 2012 by JA1XGI