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UK Suppliers of electronic components

A club for all those who are interested in Amateur Radio, meet in the London Borough of Harrow which is located in North-West London, UK

Four or Five turn one meter loop antenna for 80 and 160 meter band. This home made receive only antena can be assembled in a small place.

The club is based in chingford, north east london

FPARC - Supporting amateur radio enthusiasts and SWLs in the Portsmouth area. Monthly meetings and summer Field Weekends using club call M0GZN and occasional Special Event Station GB1PF.

Simon Saunders' Blog, from UK

Blog post by Adrian M0NWK showing how to calculate the latitude and longitude at the centre of a Maidenhead locator using basic maths.

Flight cases manufacturer, plastic cases, waterproof Storm and Explorer cases plus padded bags, plasma screen cases, foam inserts and aluminium boxes.

GM4YEQ Galashiels and District Amateur Radio Society (GDARS)

Mini-Operating Guide includes useful hints on Using the HM-133 Microphone, Basic Operation, Operating through a Repeater, Programming a Memory Channel and Assigning a Memory Channel to a Memory Bank

The White Rose Amateur Radio Society website provides information on amateur radio activities in Leeds and West Yorkshire, including details on meetings and membership. Contact details for the membership secretary are also available.

Tektronix Frequency Counters pack the functionality of a frequency counter, meter and timer into one instrument.

The South Essex Amateur Radio Society was formed in 1983 in UK

The CobWebb antenna project is a compact, multiband HF solution ideal for amateur radio operators. Covering 14-28 MHz, it features a square dipole array with near-omnidirectional coverage and unity gain. This guide details a DIY approach, using a 1:4 current balun for impedance matching. Construction involves aluminum and fiberglass tubing, with optimized element tuning for SWR performance. Weather resistance improvements and resonance shift considerations are also discussed. Build your own CobWebb antenna for an efficient, space-saving HF experience.

A Radio Society of Great Britain affiliated club. GS3BSQ GM3BSQ

Calculate distance, bearing and more between Latitude/Longitude points. This page presents a variety of calculations for lati­tude/longi­tude points, with the formulas and code fragments for implementing them.

Blog about my radio activities and homebrews

Amateur radio repeaters, often designated by an "R" number like _R6_ or _R5_, serve as crucial infrastructure for extending VHF/UHF communications range. This resource from Essex Ham explains the fundamental concept of a repeater, detailing how it receives on one frequency and simultaneously retransmits on another, typically with a 600 kHz offset for 2-meter repeaters. Understanding the input and output frequencies, along with the required CTCSS tone, is essential for successful access, ensuring your signal is processed and relayed across a wider service area. The article clarifies the importance of using the correct _CTCSS_ (Continuous Tone-Coded Squelch System) tone, often referred to as a sub-audible tone, to activate a specific repeater. It also touches upon the concept of _simplex_ operation versus repeater use, highlighting the benefits of repeaters for mobile and handheld transceivers. Proper operating procedures, such as listening before transmitting and keeping transmissions concise, are emphasized to maintain good amateur practice on shared repeater assets.

Derby and district amateur radio society

UK based manufacturer of digital mode PC fully isolated interfaces. Includes several types of interfaces including USB interfaces for CW and Digital modes

Scottish ham radio society

Getting started on receiving the QO-100 satellite using standard satellite LNBs and a 60cm dish

SDARC The Swindon and District Amateur Radio Club England UK

Formed in 1998 with the aim of encouraging Amateur Television (ATV) activity in the North London/Lea Valley area, and specifically to establish an Amateur Television repeater in North London.

This page provides a list of UK scanner frequencies, specifically focusing on the Police UHF bands. It is a useful resource for hams interested in monitoring and listening to police communications in the UK. The page offers a detailed breakdown of frequencies used by the police, allowing hams to stay informed and connected to emergency services in their area.

Home of GB3FH, 50.770MHz CTCSS 77.0Hz

For more than 40 years the Group has been a leading light in the amateur radio community around the Derby area.

Operating under the callsigns G1ORC, G4ORC, and M5ORC, the Oldham Amateur Radio Club (OARC) serves as a local hub for radio enthusiasts in Royton, Oldham, England. This RSGB-affiliated organization welcomes individuals with an interest in any facet of radio communication, fostering a community environment for learning and on-air activity. The club maintains an active calendar, detailing upcoming amateur radio events and specific courses hosted by OARC, providing a structured approach to engagement for its members. Club activities are centered at the No.1855 (Royton) Squadron Air Training Corps on Park Lane, a consistent meeting point for members. This physical location facilitates hands-on learning, equipment demonstrations, and social interaction among hams. OARC's commitment to the hobby is evident through its multiple transmitting licenses, enabling diverse operational experiences for its members across various bands and modes.

Regional radio club of Odessa Ukraine

A light portable 2 element Delta beam antenna for 14 MHz. It is basically a two element delta loop wire antenna made for portable usage providing good directivity and a 4.2 dBd gain

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

A web site deticated to the Kenwood TS-590 transceiver with links to software downloads fot the 590s seriend and technical documentation in Russian.

E51LYC DXPedition to Pukapuka atoll OC-098 North Cook Isl 2017

North bristol amateur radio club, M0NBC, G4GCT, G6PNB

When experimenting with the WellGood Loop antenna, I came across the PA0RDT MiniWhip design referenced in several places. The construction of the PA0RDT MiniWhip is simpler than the WellGood Loop since there are no inductors to wind, but during my testing, I have found the loop to have slightly better performance.

Loughborough and District Amateur Radio Club (LADARC) takes it\'s membership from the north west part of Leicestershire encompassing Loughborough, Shepshed, Coalville, Whitwick and Castle Donington.

The Sutton & Cheam Radio Society has a 60 year history. We are an Affiliated Society of the Radio Society of Great Britain (RSGB) and are based in the London Borough of Sutton.

A dedicaed vertical antenna for 80 meters band based on a 40 meter vertical experiment

Jim, G3RTE and Phil, G3SWH will be QRV on all bands 80 to 10 metres as VK9C/G6AY on CW only from the Cocos Island Motel on West Island between 22nd February and 5th March 2011

Riviera Amateur Radio Club was formed in 2012 in Torbay, Devon, England.

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

Jim, G3RTE and I will be QRV as H44KW from Honiara, Guadalcanal in the Solomon Islands from the 18th to the 28th February 2013.

HARIG is the radio club for people in and around the Harwich area in NE Essex on the east coast of the United Kingdom.

If you want to build your own common mode choke, this article explains how to measure the efficiecy of your choke before using it. In the examples has been used Amidon FT240-31 toroids.

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

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

The Anglo Scottish Repeater Group is a voluntary organisation which owns, operates and maintains four amateur radio FM repeaters in North Cumbria.

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

G1XYZ G3XYZ The Home of Amateur Radio in West Norfolk

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