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The Internet has changed our lives. Nowadays it is possible to remotely control your Ham Radio station via the Internet.

Ham radio blog by KU7PDX Chris Arnesen

The South Milwaukee Amateur Radio Club is an ARRL general-purpose affiliated club with Hams from all interest groups

A HF power amplifier with a push-pull of AFT09MS015N. The (small-signal) gain of the amplifier is around 26 dB in the lower HF band and goes down to about 24 dB on the higher end and still around 21 dB at 50 MHz. Its input matching is relatively good at the lower HF and degrades above 10 MHz.

One of the most popular amateur radio dx news web site. Includes Ham Radio News, DX News, DX Peditions, everything bout DX and DXing.

A Radio Society of Great Britain affiliated Club

YL Ham radio clun

Showcasing college amateur radio club activities, events, and projects. Informs visitors of up to date news items pertaining to ham radio technology used on campuses by students, faculty, and staff. A way for alumni to be informed of their clubs activities.

QSO Relay is a Windows desktop application that listens for contacts being forwarded from WSJT-X/JT65-HF and JTAlertX and write to Ham Radio Deluxe Logbook v6.x database

Amateur radio dealer and on-line shop of major ham radio market brands, established in 1990, based in Poland.

how I learned to stop worrying and love the magic smoke

Volunteer group registered by the ARRL/VEC that conduct FCC amateur radio license examinations in Yokohama.

Malcom Technical Support Radio Electronics Repair, ICOM Authorized Service Center, also service 1988 and newer Kenwood HF/VHF/UHF transceivers based in Toledo, WA USA

Frequency coordinations on BC Canada

The Camb-Hams are an informal group of Cambridgeshire Radio Hams.

The Trident Amateur Radio Club was formed in April 1973.

Orchard City ham radio club in Kelowna, BC Canada

The Icom IC-7300 is a popular SDR transceiver known for its excellent performance in ham bands. However, users have reported issues with reception reliability outside these bands due to ADC aliasing. This phenomenon occurs when the sampling rate of the radio interacts with frequencies outside the intended range, leading to unwanted signals being received. For instance, when tuned between 30 to 36 MHz, users may inadvertently pick up WFM broadcast signals or PMR communications due to aliasing effects. This guide outlines modifications to improve the IC-7300's performance by addressing the low-pass filter design, which is crucial for reducing interference from these unwanted signals. The proposed modifications involve adjusting the low-pass filter on the PA unit to better attenuate frequencies that cause aliasing. Measurements indicate that the original filter design allows significant signal leakage, leading to false receptions. By implementing the suggested changes, users can achieve a notable reduction in unwanted signals, enhancing the overall functionality of the IC-7300. While the modification requires careful soldering, the benefits in performance make it a worthwhile endeavor for serious operators looking to optimize their SDR experience.

Thames valley repeater group homepage. information about the group, its activities and its four amatuer radio repeaters in the thames valley area

Ultimate HAM Radio LogBook for Windows for both beginners and experienced Dxers. It features several functions like complete logbook with powerfull search capabilities, FT8 and LoTW integrations, DX cluster. Cat Interface to control your radio, licence is based on yearly subscription.

The Northampton Scout Amateur Radio Group provides Radio Scouting and associated technology based activities for Scouts in the Northampton area.

The Sinbad Desert Amateur Radio Club is a general-purpose club that mainly serves the Carbon and Emery Counties but has members from all over Utah and surrounding states. The Club was formed by local Hams in Eastern Utah in 1982 by individuals with a common interest

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

As a ham radio club we get involved with contest, emergency response and services (CERT, RACE, ARES & etc), volunteering to organizations that needs our help (Community, Boys Scouts, Senior Citizens, & etc.), promoting and educating individuals of amateur radio operations (ARRL, FCC, Obtaining Licenses, Local Government, & etc), meeting new and interesting people around the world and beyond through many sources (VHF, UHF, HF, Computers, CW, D-Star, RTTY, & etc.), amateur radio is a great social skill, there is no age limit on who can get involved, and much more.

How many times have you heard the advice to coil a few turns of coax at the antenna end to form a choke. How to find out if your common mode current choke really works

N3UJJ's Ham Radio Web Site

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.

Welcome to the Barron County Amateur Radio Association located in north western Wisconsin. A local group of hams that enjoy the hobby of amateur radio.

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.

QRM.guru has been developed to assist radio hams in dealing with RF noise. This is an educational and reference resource.

Sumter Amateur Radio Club (SARA) Official Website

An overview or summary of amateur radio / ham radio contests, contesting and a contest calendar of some of the more popular contests.

Local amateur radio club to the south of nottingham city

The largest Amateur Radio trade show on Florida s West coast

This website provides information of the worldwide Hytera Hamradio DMR network. Informations about supported talkgroups, functions and features of the DMR network.

Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns

DARC DOK L16 Duisburg-Huckingen Ham Radio Club

Italian Hamfest from ASTI provice, in cooperation with Florence HamFest.

Ham Call Lookup is an windows phone app that allows you to perform amateur radio callsign lookups via QRZ.COM. It also incorporates DX cluster feeds, DXCC information retrieval and Solar data all within one application on your Windows Phone. For callsign lookups, the application uses the QRZ.COM XML interface, please register at QRZ.COM for an account if you do not already have one. The application will happily work with a free QRZ.COM account although it is recommended to use a paid account, as a minimum the XML Logbook Data paid option, in order to access the full functionality of callsign lookups within the application.

Specialist for vertically adjustable supporting frameworks including telescopic masts and telescopic towers for ham radio systems, lighting systems, measurement techniques, observation systems. Located in Gnaschwitz Germany

DCI MotoTRBO IPSC Amateur Radio Group Our mission is to connect to and converse with the wider DMR Ham community by openly sharing our network resources and talkgroups to enable dynamic connections to all radio amateur DMR groups.

Ham radio activity and homebrew from Italy with some interesting article on QRSS, decoding interfaces, APRS and antennas

An informal group of ham radio operators sharing information and knowledge about radio-related technologies.

Shirehampton is located near the mouth of the Avon about 1 mile from the port of Avonmouth and 5 miles from the city of Bristol

Personal ham radio blog by Phil VA3QR Canada

The PARC web site describes ham radio activities and information of the Peterborough Amateur Radio Club in Peterborough, Ontario

Ham Radio in Middle Tennesse

RSGB Affiliated club

Spend your vacation with family or friends in this beautiful, romantic place with full access to Ham Radio. Finland, Savonlinna, the Heart of the largest lake district in Europe.

TelTad is a Polish amateur radio dealer with an online shop. Products offered includes all major ham radio brands, Yaesu Icom Kenwood, Alpin, OM Power, VPA systems Antennas