|
CATS Radio Links | |
CATS Internet links are grouped under the following headings:
| Antennas | Broadcast | National Societies | Local Clubs | Events |
| Historical & Vintage | Manufacturers | Operating | Publications | QRP |
| Satellites | Software | Suppliers | Technical Topics | Miscellaneous |
| 80 Metre Vertical | GM4AFF site with good practical information |
| AA5FR | Lots of stuff including including info on satellite tracking |
| AC6V's Antennas Links | Literally hundreds of antenna links |
| AC6V Antenna Suppliers | Comprehensive list |
| Analyser | Comments about the MFJ-259B |
| Antenna Analysers | Comparative review of different manufacturers' offerings |
| Antenna Software | Many links to other software sites by AC6V |
| Butternut Antennas | Well-known antenna manufacturer: Bencher & Butternut |
| Coaxial Collinear | Interesting design for 432 MHz - not tried by G3WZK |
| Cushcraft | Well-known antenna manufacturer |
| Cushcraft R7 | Manuals for the R7 antenna |
| Cushcraft A449-11 | Manual for this 70cm antenna |
| Diamond | US site for many antennas |
| DK7ZB | Homebrew antennas |
| EZNEC | Antenna design software by W7EL |
| Gamma Match | QST article on gamma matching |
| Gamma Match II | Info from a Google book |
| Hy-Gain | Well-known antenna manufacturer |
| Magnetic Loop | (G4FON site) |
| Moxon Antenna Project | Inspiring antenna project completed in YU-land |
| Moxon Calculator | Program to calculate the dimensions of a Moxon Rectangle |
| Log Periodic | How to design a log periodic antenna |
| Log Periodic 2 | More info on how to design a log periodic antenna |
| Phoenix 4 metre Dipole | Simple practical design |
| PicATUne | Auto ATU, as featured in Radcom in 2000/01, now updated |
| Pro Antennas | Manufacturer and supplier of HF antennas |
| Pro Whip Antennas | Verticals and Delta Loops |
| Resonance | How to achieve it (Google Book) |
| Safety | RAYNET Guide To Antenna Safety |
| Slim Jim | Not an amateur antenna, but easily scalable |
| Slim Jim 2 | Design for 2m version |
| Slim Jim Calculator | On line design tool |
| Small Loops | Slide Set From Professor Mike Underhill |
| SOTA Beams | Manufacturer of portable HF, VHF and UHF antennas |
| Spiderbeam Antennas | Manufacturer of portable HF antennas |
| Tennamasts | Manufacturer of masts for amateur and other use |
| Tenna Reviews | Reviews of Tennamast products on eHam.net |
| Tower Installation | Practical info with photos from HS0ZEE |
| Tri-band Collinear | Full design information |
| Versatower | Versatower and Radiostructures lattice masts |
| VHF antennas (in French) | Links for 6m and 2m antennas |
| Vine antennas | |
| VK5JST | Supplier of antenna analyser design PCB |
| W2BRI Magnetic Loop Antennas | Includes practical design for 80 metres (or 75 m in the US) |
| Yagi design | Access to DL6WU's Yagi design software |
(Checked for broken links 19/09/2011)
| A.T.V | Aerials and Television |
| BBC Network Status | Up-to-the-minute information |
| FM Reception | Reception Advice (Radio Jackie site) |
| Freesat | Main site for satellite equivalent of Freeview |
| Freeview | Free digital TV and radio |
| Radio Susy | Local Community Radio For Surrey and Sussex |
| Rajar | Audience Research |
| UK Broadcast Transmission | Interesting collection of both historical info and future plans |
(Checked for broken links 19/09/2011)
National and International Societies:
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RSGB |
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Radio Amateur Invalid & Blind Club |
| RAOTA | Radio Amateur Old Timers' Association
Broken link Sept 2011 |
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Royal Signals Amateur Radio Society |
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The Vintage and Military Amateur Radio Society: National/worldwide organisation for people interested in vintage and vintage military radio |
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ARRL (USA)
(Click on "open This content in a new window") |
| EPSK | European PSK Club |
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German DARC (In English) |
| JARL | Japanese National Society (in English) |
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New Zealand ART |
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Spanish National Society |
| SARL | South African National Society |
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Wireless Institute Of Australia |
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Gibraltar National Society |
| HARTS | Hong Kong National Society (in English) |
| CARS | Cyprus National Society (in English) |
(Checked for broken links 21/09/2011)
| BDARS | Bromley & District ARS |
| CARC | Crawley ARC |
| CPREC | Crystal Palace Radio & Electronics Club |
| Caterham RG | Caterham Radio Group |
| CARS | Chelmsford ARS |
| CVRS | Cray Valley Radio Society |
| DDRS | Dorking & District RS |
| EDRS | Edgware & District RS |
| HARC | Horsham ARC |
| Mid-Sussex ARS | Mid-Sussex ARS |
| RATS | Reigate ATS |
| Southgate ARC | Southgate ARC |
| SRCC | Surrey Radio Contact Club |
| SCRS | Sutton & Cheam RS |
| SCRS Practical Group | The SCRS group that meets on Monday evenings in Banstead |
| W&DARS | Wimbledon & District ARS (currently out of service) |
| Region 9 Clubs | Other local clubs (RSGB Site) |
| Radioclubs.net | List of RSGB-affiliated clubs. CATS entry |
| and not so local .... | |
| CVRC | Crescenta Valley Club (California) - twinned with CATS |
(Checked for broken links 19/09/2011)
| Friedrichshafen | International Amateur Radio Exhibition |
| International Museums | List of Museums registered for 2009 |
| Kempton Park Rally | West London Radio & Electronics Show |
| Rally Information | What's on and where in the Amateur calendar |
| VMARS events | Military Radio Events |
(Checked for broken links 19/09/2011)
| 1945 Wireless World | Includes link to historic 1945 proposal by Arthur C Clarke for geostationary satellite communications |
| 1950's British TV Nostalgia | Not technical, but interesting info on 1950's programming |
| 50 years | The second fifty years of amateur radio |
| Andy's Valve Website | Restoration of old electrical and electronic technology |
| Antique Radio Classified | Monthly US publication for buyers and sellers of old radios etc |
| Antique Radio Supply | Links to sources of supply |
| Aurora Design | Standards converters of obsolete TV systems |
| Bakelite World | Masses of information on old wirelesses |
| Brenell Tape Recorders | Also contains info on Ferrograph, Truvox, etc |
| British DX Club | Guide to radio museums & vintage radio in the UK & Ireland, by county |
| British Vintage Wireless Society | Self-explanatory |
| British Vintage Wireless & Television Museum | All about the Dulwich museum lovingly created and maintained by Gerry Wells ( and others) |
| Bush DAC90 | Classic set - but not rare - got one myself |
| Carlos Miranda Radio Collection | Relatively small collection |
| Classic Wireless | Info on many vintage wirelesses |
| Coast Stations | Info on Coastal Radio Worldwide |
| Droitwich | YouTube clip of Droitwich's construction |
| Early TV | Load of fascinating historical material on this US site |
| Eddystone | User Group |
| Ferrograph Tape Recorders | Lots of info including downloadable manuals |
| Heathkit HW8 | Info on popular 4-band QRP transceiver |
| Heathkit Shop | Disappointing site with very little for sale, despite the name |
| Home Radio of Mitcham | Browse parts of the old catalogue and dream of times past ... |
| John R's Mellow Pages | Home-constructed TVs |
| Jonz Valve Page | Info on vintage television sets and wirelesses |
| Light Straw | British telephone memorabilia |
| Marconi Documents | Index of historical Marconi-related documents |
| Mikey's Vintage Technology Page | Diary of 8 years repairing TVs |
| Old Computers | On line museum since 1995 |
| Old Radio World | Everything from crystal sets to regenerative receivers |
| Past Times Radio | Vintage radios and projects |
| MSF Rugby | Fancy a mast 180 m high ... |
| Old Radio World | Circuit diagrams and service manuals for radio sets, vintage radios, tape recorders, amplifiers, TV sets, record players, etc. |
| The Radar Pages | All you ever wanted to know about British air defence radar |
| Radio Caroline | The cyber home of the Ross Revenge |
| Radio Constructors' Circuit Archive | Transistor TRF circuits from Radio Constructor and elsewhere |
| Radio Constructors' Circuit Archive | Valve TRF circuits from Radio Constructor and elsewhere |
| Radio Constructor Info | Site covering the now-defunct magazine |
| Radio Picture Gallery | Pictures of and links to vintage wirelesses |
| Rugby | Wikipaedia entry for Rugby radio station |
| Rugby Radio | The history of Rugby (part of a site about low frequency (LF) amateur radio |
| R1155/ T1154 | Lots of info on this Rx/Tx combination used in the Lancaster and Sunderland aircraft |
| Service Data | UK Vintage Radio Service Data |
| The Telephone File | The history of UK customer telephone apparatus & systems |
| Transistor Museum | The history of transistors |
| UK Vintage Radio | Repair and restoration |
| The Valve Page | Radios - televisions - test equipment |
| Valve & Tube Supplies | Supplier of thermionic components |
| VIs | Radio Security Service - Voluntary Interceptors in WW2 |
| Vintage components | Specialist vintage components |
| Vintage European Circuit Diagrams | Circuit diagrams and components for vintage wirelesses |
| Vintage & Military ARS | The VMARS Technical Information Service |
| Vintage Radio & Electronics | Articles from Radio Constructor and other vintage electronic constructor magazines and books |
| Vintage Radio Emporium | A virtual radio shop that has mysteriously moved from the past to the web. The shop keeper lives in England and is particularly fond of crystal sets. |
| Vintage Technology | Lots of interesting stuff (not just radio) from South Wales |
| Virtual Valve Museum | Info and pictures of a wide range of thermionic devices |
(Checked for broken links 19/09/2011)
| Adat | Swiss maker of all digital transceiver |
| AEA | Antenna Analysers |
| Alinco | Rigs |
| Amidon | Ferrite and iron powder products, baluns, inductive components for EMI suppression and RFI suppression |
| Bencher | Keys and (Butternut) Antennas |
| C&K | Switch Manufacturer |
| Caddock | Precision resistor manufacturer |
| Cushcraft | Antennas |
| Elecraft | High quality equipment - kits and ready-built |
| Fair-Rite | Ferrite components |
| Fluke | Test Gear |
| Heil | Headsets and mikes |
| Hilberling | Radio gear manufacturer, including amateur |
| Hy-Gain | Antennas |
| Icom | Rigs |
| IK-Telecom | Finnish manufacturer of antennas for 6m, 4m, 2m and 70cm, plus professional gear |
| Jensen | Danish capacitor manufacturer |
| Johnny Melvin | G3LIV - supplier of data interfaces |
| Kenwood | Rigs |
| Kuhne | Microwave kit |
| MFJ | Antennas, antenna accessories and power supplies |
| microHAM | High end DX accessories |
| Microtelecom | Italian SDR manufacturer |
| Mitsubishi | Semiconductors and modules |
| Philips | PMR rigs |
| RM Italy | Interesting manufacturer of RF gear |
| Steppir | Antenna Manufacturer |
| TigerTronics | SignaLink™ Model SL-1+ (Datamodes interface) |
| Tonna | Antenna Manufacturer |
| Ultrabeam | Italian antenna manufacturer |
| Vertex Standard | Yaesu parent company |
| Versatower | Versatower and Radiostructures lattice masts |
| Winradio | Radio communications equipment manufacturers |
| Yaesu | Rigs |
| Yaesu Museum | German site (includes recording of QSO between W5LFL on Space Station and JY1 (King Hussein of Jordan) |
(Checked for broken links 19/09/2011)
| 4 Metre Website | Self-explanatory |
| 6 Metre Group | UKSMG: dedicated to encouraging amateur radio operation on 50MHz around the World |
| 6 Metres | Info from the Northwest Amateur Radio Club |
| 10 Metre Net | Home Counties 10m net every Saturday from 9pm (local) on 28.5MHz USB (28.6MHz if busy) |
| 50 MHz and up | The DK5YA VHF page |
| 50 MHz Beacons | G3USF site |
| 70 MHz Forum | EA6CA site (in Spanish) |
| 425 DX News | Italian site (In English) |
| Amateur Radio and DX reference guide | from AC6V |
| Beacon List (HF) | |
| Beacon List (Over 30 MHz) | |
| Callsigns I | Detailed explanation of UK callsign system |
| Callsigns II | List of callsign groups issued by approximate date since 1920 |
| Contests (HF) | RSGB Calendar |
| Contests (VHF) | RSGB Calendar (need to click on Calendar on the RSGB page) |
| Contests (worldwide) | SM3CER site- comprehensive contest calendar |
| Czech repeaters | |
| Distance & Bearing | Useful calculations on line |
| DL7DF | Botswana dxpedition |
| DXFC | A site for DXers who like to travel |
| DX Summit | Real time information about DX station activity |
| Echolink | |
| eQSL | |
| FISTS | International Morse Preservation Society |
| French Repeaters | |
| GB3CCX | Gloucestershire Repeater Group |
| GB3VHF | |
| Great Circle Maps | Great Circle Maps Based On Any Location |
| IARU QSL | IARU list of QSL bureaus |
| IOTA | |
| Locate the Distance | Calculates distance between Locator squares |
| Locator finder (1) | AMSAT site |
| Locator finder (2) | Google based |
| Locator finder (3) | Starting from UK post code |
| LOTW | ARRL log of the world |
| Lynx DX Group | Invalid "amateur" operations |
| MC0SHL | Strumble Head DX and Contest Group |
| Mobile Operating | Useful site run by K0BG |
| Mozambique | DXpedition info |
| Ofcom | Ofcom Licensing Page |
| Operating Practice | Guide by ON4WW |
| QRZ.com | Info about individual amateur radio stations worldwide |
| QRZ.ru | Russian site - click on "Translate to English" |
| Prefixes | Extremely comprehensive list from AC6V |
| Propagation | Amateur Radio Propagation Studies from DF5AI |
| Propagation Check | Live info on MUF, sporadic E, etc |
| Reverse Beacons | You explain it to me please! |
| SM2CEW | Moonbounce site |
| SOTA | Summits-on-the-air |
| SpaceWeather | Information on solar storms, aurorae etc |
| Spanish Repeaters | 144 MHz |
| Spanish Repeaters | 432 MHz |
| Syria DXpedition | |
| Telegraph | Vast collection of material on CW and telegraphs by W1TP |
| UK QRM Group | Yahoo user group on QRM (requires group membership) |
| UK Repeaters | Comprehensive up-to-date information |
| VHF DX Net | Lots of info from EA6VQ (in English) |
| WebSDR | Listen live to yourself on SDRs around the world |
| WSPR | G4ILO site |
(Checked for broken links 19/09/2011)
| CQ-DL | In German |
| CQ-VHF | US magazine |
| Dubus | Magazine for VHF and up in English and German |
| Elektor | Electronics magazine published in 9 languages |
| EPE Magazine | Everyday Practical Electronics |
| Funkamateur | In German |
| FunkTelegramm | In German |
| Ham-Mag | New On-line Ham Radio Magazine |
| ICQ Podcast | News from Martin, M1MRB |
| Practical Wireless & Radio User | Site covering both magazines |
| QST | ARRL magazine |
| Radio-REF | In French |
| Six News | UKSMG publication |
| UKW Berichte | In German |
| VHF Communication Magazine | For Radio Amateurs and Professional RF Communications Engineers, covering VHF, UHF and Microwaves |
(Checked for broken links 19/09/2011)
| AMQRP | American QRP Club |
| FPQRP | Flying Pigs QRP Club |
| G-QRP | GQRP Club |
| HCQRPC | Home Counties QRP Circle |
| Hendricks QRP Kits | Wide range of Californian QRP kits |
| KD1JV Designs | QRP Kits and Projects for the low power Amateur Radio enthusiast |
| QRPARCI | QRP Amateur Radio Club International |
| QRP Project | Interesting German site |
| W0CH QRP World | Lots of QRP info from the US |
(Checked for broken links 19/09/2011)
| 432 MHz & Above EME | K2UYH site |
| AMSAT | Main AMSAT site |
| AMSAT Satellite Status | Information on OSCAR |
| Britain's Moon Shot | BBC news item |
| Delfi-C3 | Dutch nano-satellite project |
| ESA | European Space Agency |
| GEO | Independent Organisation for Weather Satellite and Earth Observation Enthusiasts |
| Heavens Above | On line tracking of the ISS and other spacecraft |
| Orbitron | Satellite Tracking From Poland, updated daily or better |
| P3-E | AMSAT-DL's P3E -satellite project |
| P5-A | AMSAT-DL's Mars project |
| Surrey Space Centre | University of Surrey site |
(Checked for broken links 19/09/2011)
| Contest Logger | Amateur Radio Contest Logging Software by EI5DI |
| CW Skimmer | Wideband CW decoding programme |
| Digipan | PSK31 software with panoramic display |
| DX Lab | Dxing and other software |
| Echolink | |
| FT857 | Rig control program |
| FT950 | Memory saver for FT950 |
| G4HFQ | Radio Programming Software |
| G8PUT | Computerised Logbook |
| Ham Info Toolbar | Downloadable tool bar with up to date DX news, articles, cluster spots, propagation predictions, ITU access and maps |
| HRD | Ham Radio Deluxe computer control for commonly used transceivers and receivers |
| Minos | Contest logging software |
| Radio Mobile | Propagation Simulation Software from VE land |
| Virtual Legacy Software | Rig control software |
| Weak Signals | Software from Alberto I2PHD |
| Weak signal software | |
| WSPR | WSPR enables you to participate in a world-wide network of low power propagation beacons |
| Yagi design | Access to DL6WU's Yagi design software |
(Checked for broken links 19/09/2011)
CATS are sponsored by SYCOM trading please take a look at their web site for good value for money components
If considering buying second hand, why not check out "The Rig Register" to make sure that the piece of equipment is not stolen - click here to visit the site.
Other suppliers in alphabetical order:
| Barend Hendriksen (Netherlands) | Useful mail order for hard-to-get components, including ICs |
| Belmont Communications | Amateur and professional two-way radio |
| BHI | Amateur noise reduction |
| J Birkett | Surplus components |
| Bowood Electronics | Electronic components |
| CPC Farnell | Major component supplier |
| CQ Shop | Supplier in Hong Kong |
| Digi-Key | Components |
| Display Electronics | Surplus electronics |
| Down East Microwave | US supplier of kit for VHF and above |
| ESR Electronic Components | Components, Velleman Kits |
| EZ Hang (USA) | Aerial rigging catapult |
| Electrojumble | Surplus Equipment & Information |
| Farnell | Major component supplier (but different range from CPC) |
| Garex Electronics | Accessories, components, EMC |
| G4HFQ Software | Amateur radio software |
| Ginpoles | WB0W site - supplier of hardware for erecting towers |
| Golledge Electronics | Quartz Crystals etc |
| HamStuff by W7NN | Various, including QSL card holders |
| Haydon Communications | Rigs and accessories |
| Hendricks QRP Kits | Wide range of Californian QRP kits |
| HF Projects (USA) | Range of HF kits, modules and projects |
| Hofi | German supplier of antennas and towers |
| ILink Boards | Echolink and other interfaces |
| JAB Electronics | Components company owned and operated by Radio Amateurs Primarily for Radio Amateurs & Hobbyists |
| Jaycar Electronics (Australia) | Kits and bits. |
| Juma | Interesting selection of kits from OH land |
| K9YIG | SoftRock radio kit supplier |
| LAM Communications | Rigs and station accessories |
| Mainline | Supplies include variable capacitors and slow motion drives |
| Marcucci (Italy) | Rigs and station accessories |
| Martin Lynch | Rigs and all station accessories |
| Maplin | Major component supplier |
| Mechatronics | Mechanical & electronic components, stainless steel fixings |
| Microwave Components | G3WDG microwave site |
| MiniKits | Comprehensive Australian Supplier Of Kits and Bits |
| Mode Components | Components |
| Nevada Radio | Amateur rigs and antennas, non amateur gear |
| Pro Antennas | Manufacturer and supplier of HF antennas |
| Pro Whip Antennas | Verticals and Delta Loops |
| Radio Structures Ltd | Towers, masts and antennas |
| Radio Works (USA) | Cables, antennas and accessories |
| Radioshop888 | Hong Kong based supplier of value-for-money rigs, etc |
| Radioworld Communications | Rigs and all station accessories |
| Rapid | Electrical and electronic |
| RF Parts (USA) | Specialist RF Parts. Amateurs supplied min order $25. |
| RF Source (Greece) | Useful RF Modules |
| RigExpert | Supplier of antenna analysers and other kit |
| RossComm | New supplier of amateur radio equipment in Fareham, Hants |
| RS Online | Major component supplier |
| Sandpiper Aerials | Aerials and accessories |
| SDR Kits | G0BBL SDR kits |
| Sharman Multicom | Manchester-based supplier of amateur and CB kit |
| Spectrum Communications | Amateur radio kits, including transverters |
| Thunderpole | Mainly CB gear |
| Toolbank | Supplies Q-Max chassis cutters and other stuff |
| Transmitters R Us | As its name implies - for broadcast |
| Tube Shop | On-line supplier of thermionic valves |
| UES&S Ltd | Surplus electronics |
| Vacuum Tubes | Stock over 7,800 different radio and and vacuum tubes |
| Versatower | Versatower and Radiostructures lattice masts |
| Vine Antennas | Supplier of rigs and antennas in GW land |
| VK5JST | Supplier of antenna analyser design PCB |
| Walford Electronics | Amateur radio kits |
| Waters & Stanton | Rigs and all station accessories |
| WH Westlake | Cables and connectors |
| WiMo | German supplier - large product range |
| Wood and Douglas | Professional communications (ex amateur supplier) |
| Worsley Communications | Rigs and masts |
| ZLP Electronics | Yorkshire-based supplier of radio data interfaces, etc |
(Checked for broken links 21/09/2011)
| 4m Transverter | ARAC (Andover Radio Amateurs Club) design |
| 13cm Downconverter | Design from G0ORY |
| 10 GHz | Simple FM design for 10 GHz |
| 24 GHz Initiative | The UK Microwave Group 24GHz Initiative |
| AC6V Technical Reference | Many links on a wide range of topics |
| ADSB | Simple design for an ADSB pre-amp |
| ADSB2 | Simple design for an ADSB antenna |
| ADSB3 | Comparison of ADSB receivers |
| BATC | Amateur TV (including ATV streaming) |
| BITX 20 metre transceiver | An easy to build 6 watt SSB transceiver for 14MHz |
| Circuit Symbols | Downloadable Circuit Symbols |
| Cool Circuits | Interesting collection of circuits, but mainly non radio |
| cqham.ru | Russian site - click on union flag for English version |
| Datasheet Archive | Claims over 6 million electronic component datasheets |
| Datasheets | Various, incl Tonna antennas |
| DSP Radio | An Elektor magazine design |
| D-Star | UK D-Star Interconnect site |
| Dummy Load | Construction Information |
| Dummy Load 2 | Design in a paint tin (also adopted at G3WZK) |
| Earthing Systems | Wikipedia Info On Electrical Earthing Systems |
| Earthing Systems 2 | Simple explanation of the three main systems |
| Electrical Wiring | Useful Guide To IEE Regulationjs |
| Electrolytic capacitors | Reforming |
| Electronic & Electrical Symbols | Downloadable Symbols |
| Frank's Hobby Corner | NL land (PA0FBK) |
| G4BAO | Microwave site |
| G4GYS | Mainly antenna related items |
| G4JNT Site | Andy Talbot |
| H-Mode | H-Mode Mixer Front end |
| Ham Exams | On line questions for US amateur exams |
| Hans Summers | Many buildable designs |
| Heatsinks | All about heatsinks and heatsink design |
| Hobby Circuits | Good collection of useful circuits |
| HPSDR | High Performance Software Defined Radio |
| Impedance Matching (1) | On-line impedance matching network design. Try it! |
| Impedance Matching (2) | More on-line help |
| "In Practice" | G3SEK |
| ezscreen | IP ratings (water and dust proofing etc) |
| K5LXP | Constructional projects |
| LC Meter | Project From VK3CMZ |
| LF Amateur Radio | G3NYK site |
| Microphone Pinouts | G4WPW site covers countless rigs and mikes |
| Microphone Powering | Information on powering electret microphone capsules. |
| Microwavers | UK Microwave Group |
| mods.dk | Modifications and manuals |
| N Connectors | How fit N-Type Connectors |
| Ofcom - Legal | Legal Aspects Of Using Transmitters In the UK |
| Oscilloscope | Make a 'scope designed by N4BCU |
| PA0FRI | Lots of technical Info |
| PLT | Item on PLT and alleged interference caused by BT Vision with YouTube clip. |
| Plug Fitting | How to fit a BNC plug |
| PW Exe | Classic PW Microwave Design |
| Radio waves below 22 kHz | VLF and ELF |
| RF Design | Journal for RF design engineers |
| Rigpix | Rig photos from SM land - 3660 radios at the last count |
| SCART Club | ATV in Southern England |
| SDR 2 | High Performance Software Defined Radio |
| SDR 3 | FlexRadio: Software Defined Radios for Amateur Radio Use |
| SDR 4 | Open source software defined versatile radio board |
| SMA | How to wire up an SMA connector |
| TAPR | Amateur Digital Communications Organisation |
| Transistor Pinouts | Common legacy device pinouts |
| Tube data | I think they must mean data sheets for thermionic VALVES |
| ULF | Ultra Low Frequencies |
| WA1MBA | A domain for microwave amateur radio |
| ZL1BPU | Lots of info on communications modes |
| Z-match | Z-match Design from VK land |
(Checked for broken links 20/09/2011)
| Airband Frequencies | VHF / UHF Airband Frequencies in use within the UK |
| Airband Online | UK VHF Airband Transmitter Sites |
| Bletchley Park | Bletchley Park National Codes Centre |
| BPL Noise | BT Vision Powerline Adaptor Interference - YouTube Recording |
| CW Ring Tones | For mobile phones |
| Digimodes | W1HKJ site covering many data modes |
| eHam.net | Ham radio on the net |
| Electromagnetic Pulse Bomb | Military use of EMP |
| Encyclopaedia | Science and Engineering Encyclopaedia |
| G3KAC | University Of Bristol Club |
| G7FEK | VOIP gateway etc |
| HMS Collingwood | Royal Navy radar and communications museum |
| HS0ZEE | Experiences of living in Thailand, including amateur radio |
| Joint Radio Company | Spectrum management |
| Learn About | Fantastic Learning Resource For All Electronics |
| Manuals | Download a manual for almost anything |
| NOT the GB2RS News | A humorous site, sporadically updated |
| Olivia | W1HKJ site covering this data mode |
| Ofcom | Ofcom licensing page |
| ON4KST Chat | Chatrooms for all amateur frequencies (not checked out) |
| Palau | Rent a radio shack in Palau for your holidays |
| RAE | Old RAE exam papers |
| Rig Register | Check to see if a rig has ever been stolen |
| Robot Wars | Radio and antenna considerations |
| Sam's Telecoms Documents | eg Post Office N diagrams |
| Superfi | Like hi fi, only better (allegedly!) |
| Telecom Heritage Group | Mainly Post office era, including Strowger |
| Transmission Mode Recordings | A collection of recordings of various transmissions, including: Hellschreiber, PSK31 and PSK125, DominoEX and RTTY. |
| TAPR | Tucson Amateur Packet Radio |
| VHF Communications | Construction-orientated publication for Amateurs and Professionals, covering VHF, UHF and Microwaves |
| Wireless Waffle | Describes itself as "a whole spectrum of radio related rubbish" but is actually quite interesting and always topical. Lots to read! |
| WWII - War Time Radio | Some interesting facts on ULTRA |
(Checked for broken links 19/09/2011)
Page updated 21/09/2011 by G3WZK