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

The Mansfield Amateur Radio Society brings together people interested in Amateur Radio

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

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

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

Sporadic E is a form of propagation that can arise with little warning, and enable radio frequencies of 150 MHz and more to travel over distances of a thousand kilometres and more.

The Club aims to meet the needs of all interested in amateur radio, and has a varied programme of guest speakers, surplus sales, members' interests evenings, and social evenings.

Based in Filwood, Bristol England

The map display allows you to select by locator, or clicking on the map, where you want to calculate the probability of Sporadic-E by building a combination EPI, Es Probability Index, based on factors using many of the known parameters which can effect Es. T

Amateur Radio Section, Isle of Wight England UK

Amateur radio blog by Adrian Leggett M0NWK

Local amateur radio club to the south of nottingham city

Ban Power Line Technology a website devoted to defend amaterur radio against power line communications devices interferences

Surprisingly, although PCB soldering is the core process of electronics assembly, few people do know how to solder reliably

The Newbury and District Amateur Radio Society (NADARS), operating under the callsign G5XV, details its extensive history spanning **104 years** and its operational activities. The resource outlines regular monthly meetings held at Acland Hall, Hermitage Rd, Cold Ash, RG18 9JH, typically featuring informal lectures on radio-related topics. It also highlights the club's engagement in various social and radio events, including participation in contests such as _IOTA_ and _NFD_. NADARS maintains regular daily nets on both 2M and HF bands, providing specific details for members to join. A significant annual event is the Newbury Radio Rally, hosted each summer at the Newbury Showground, which attracts visitors nationwide and features radio and computing sales, club stands, and live demonstration stations. Information on upcoming events, including the next Newbury Radio Rally scheduled for July 5th, 2026, is also provided.

Gloucester amateur radio and electronics society

The MiniTioune receiver project, developed by Jean-Pierre F6DZP, consists of the home constructed MiniTiouner hardware which interfaces via a standard USB 2.0 port to a Windows PC running the MiniTioune software. It can be used to receive satellite broadcasts transmissions making it ideal for use on Q-oscar 100 Es hail-2 without any external frequency converters.

Tektronix Signal Generator web site. A Tektronix signal generator can create a virtually unlimited number of signals - analog or digital, ideal or distorted and more.

Crawley, West Sussex UK.

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

Founded in 1958, as the Wolverton & District Radio Club, largely by members of the Diplomatic Wireless Service at Hanslope Park, MKARS now has over 120 members

TSGARC Amateur Radio club Thornbury & South Gloucestershire Englang UK

List of amateur radio repeaters in Essex England

Scottish repeater Group

RSGB Affiliated club

Amateur radio uhf repeater covering the bristol area - callsign gb3bs

ARAC Andover radio amateur club

Echelford amateur radio society is based in ashford, middlesex, uk. has about 80 members.

S.C.A.R.T is a club based in the Southampton area of the UK open to everybody who is interested in amateur television and video related subjects.

Home brewing a high performance, high power common mode choke for HF bands

Is for those who wish to explore the globe by radio and experiment with electronics.

Established 1938

ESR is located in the North East of England and was formed in the early 1980s offering customers a broad range of Audio-Visual, Electrical and Electronic Components and Accessories.

G3ztt mid cheshire amateur radio society, cheshire uk

Maybe not state-of-the-art technology but the author offers a quick and easy project for a Morse code practice oscillator using a 555 timer chip

2013 Apr 13 - 2013 Apr 20 Palm The Grenadines

The South Manchester Radio and Computing Club (SMRCC) provides a vibrant community for radio amateurs and computing enthusiasts in Sale, Cheshire, UK. Established as an active local club, it hosts regular weekly talks covering diverse subjects within both amateur radio and general computing. Members engage in various activities, fostering knowledge exchange and practical skills development across different facets of the hobby. The club's focus extends to supporting members in their pursuit of radio operating, technical projects, and digital communication methods. With a consistent schedule of meetings, SMRCC aims to be a central hub for local hams and those interested in the intersection of radio and computer technology. The club's activities contribute to the local amateur radio scene, offering opportunities for learning and social interaction.

The ICOM IC-7610 SDR HF/50MHz Transceiver official product page with product specifications, option accessories and video at ICOM UK

Specification of the ICOM IC R7100, VHF UHF Receiver

The amateur radio listener for when you're not on the radio. Repeater-START, the offline repeater listing app for Windows, Linux, Raspberry Pi, Ubuntu, Librem Phone is available, Now with grid square display, topographical maps and frequency preferences

The Worthing and District Amateur Radio Club

Details the operational scope and maintenance requirements for the Gloucestershire Repeater Group's amateur radio repeater network. It outlines the financial obligations associated with site rent, electricity, insurance, and professional aerial maintenance, emphasizing the necessity of member support or donations for sustained operation. The resource provides information on accessing individual repeater systems via the site menu. It also announces the 2026 Annual General Meeting (AGM) details, including the date, time, and location at The Robins Nest, Cheltenham Town Football Club, noting the venue is shared with the Cheltenham Amateur Radio Association. The page highlights the availability of the repeaters to all licensed radio amateurs and details how to contribute to their upkeep through membership or direct donations.

The kent repeater group provides amateur radio repeaters on 6 sites in the county

Saltash & District Amateur Radio Club

The following is the third part of a three-part guide to help get started with HF, written by Charlie Davy – M0PZT

Here is a formula and calculator for creating a loaded (shortened) quarter wave vertical or balanced dipole. The calculation refers to either a loaded 1/4 wave or a loaded dipole

GB3SO GB3FR Official Fenland Repeater Group website

New and information for the UK Radio Scout

This review of progress and future Prospects provides a practical guide for effective use of VHF sporadic-E propagation.

This WEBSDR runs on Raspberry PI4-8G, Afedri-Net RX for 160m, RTL-SDR stick with homemade SBL1 mixer upconverter and fullsize 160m Delta loop antenna 4m up. Operated from Ukraine by UR5WT, US5WE and UX5DH,