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Hams have been putting stations in their cars since the Twenties. Today, there is great satisfaction in facing the challenge of installing a transceiver in our small cars and pick-ups, using somewhat inefficient antennas

Info about operarting permissions in other countries

Presents a detailed resource for DXers interested in Non-Directional Radiobeacons (NDBs), MF, HF, and VHF propagation beacons, and various other radiobeacon types. The site offers access to downloadable information files, including an Abbreviations List, NDB List Country List, and NDB Publications List, which serve as foundational materials for newcomers to the hobby of beacon monitoring and DXing. It covers specialized topics such as DGPS beacons, GMDSS DSC mode, and NAVTEX mode, with dedicated sections providing in-depth explanations. A Beacon Photo Gallery showcases diverse radiobeacon types from around the globe, offering visual context for different systems encountered in the field. The platform also facilitates participation in unique monthly Coordinated Listening Events (CLEs), providing guidelines and schedules for these activities. The resource outlines various associated Groups.io lists, including the primary NDB List for radiobeacons (NDBs, Propagation Beacons, VOR systems), the DGPS List for DGPS DXing, Time Signals, LORAN, and WeFAX modes, and specialist groups like NavtexDX and DSC List for GMDSS-DSC. It details how to join these communities for further engagement and information exchange.

The W3EDP is a 85 foot long wire and a 17 foot counterpoise. At N4KGL

The latest info on the world of radio including:world,shortwave,pirate,digital,mw,lw news,links.

New Zealand Amateur Radio 70, 32 & 23 cm (UHF) Repeaters

AL-811 and AL-811H specifications and information about this 600-800 Watt ham radio ower amplifiers

The HA8TKS VHF DXCluster is an essential online resource for amateur radio operators focusing on VHF and higher frequencies. This platform provides real-time information on DX spots, allowing users to track and engage in two-way radio communications effectively. The integrated map mash-up feature enhances the user experience by visually displaying the locations of DX stations, making it easier for operators to plan their contacts and optimize their antenna setups based on geographical data. In addition to the DXCluster functionality, the site offers various HAM tools, including a QRB calculator, which helps operators determine the distance to DX stations based on Maidenhead grid locators. The platform supports multiple modes of operation, including CW, SSB, RTTY, and digital modes like FT8 and JT65. With a user-friendly interface and comprehensive data, the HA8TKS VHF DXCluster is a valuable asset for both novice and experienced operators looking to enhance their DXing and contesting activities.

KB22UT Article on how protecting ham radio station and in particular I/O Lines such as AC power, coax cable, control circuits, telephone line.

Kenwood TS 480 english manual in pdf format

AM DXing taken to the extreme. Reports and station logs from DXpeditions to Arctic Northern Finland. Also articles, QSL news, links, audio and video on AM DXing. Published by Finnish DXer Mika Mikelainen.

About basics of the horn antenna used for many rf microwave antenna applications.

UK Repeaters is an iPhone app that shows all UK Based repeaters on a map. Each repeater information is shown to allow easy access and programming of your radio

Installing mobile radios in your new megabucks car can be a frightening proposition - especially if RF from your rig could damage your shiny new roadster

Hammarlund resources site

Using portable generators during emergencies or at field day site, using batteries and how to recharge them, using solar panels.

The Mobile-Portable Reflector serves as a dedicated discussion platform for amateur radio operators interested in mobile and portable operations. It facilitates the exchange of information and answers questions specifically related to operating amateur radio from vehicles, temporary field locations, or while walking. The platform is not intended for general amateur radio discussions; its scope is strictly limited to mobile-portable topics. Subscribers can access prior postings to review historical conversations and solutions. The list is administered by _dick at k7vc.com_ and operates on Mailman version _2.1.12_. Subscription requires email confirmation and offers optional privacy password protection, with an option to receive daily batched emails.

Developing a protection plan against lightning

Learn how to operate abroad and get you licence valid and recognized in many countries

This site is devoted to promoting RSQ as an improved signal reporting system for narrow band digital modes and to demonstrating its application to the popular PSK31 mode.

Slim Jim Antenna projects by N9TAX

Essentials or basics of RF signal generators or microwave signal generators, their facilities, capabilities and how they work.

Getting squeaks and squawks from your H-T? Are pagers crunching your mobile rig's front end? Here's how intermod happens--and how to fight back!

A guide to making good soldered joints and desoldering tips, includes an interesting how-to-guide on properly soldering electronic components

A nice tutorial and the basics of the software defined radio, SDR, and links of software defined radios to JTRS, and general SDR receiver technology.

The _Sci.Electronics FAQ: Repair: RFI/EMI Info_ document, authored by Daniel 9V1ZV, provides a detailed analysis of computer-generated RFI/EMI, focusing on its impact on radio reception. It identifies common RFI sources such as CPU clock rates (e.g., 4.77 MHz to 80 MHz), video card oscillators (e.g., 14.316 MHz), and even keyboard microprocessors, all of which generate square-wave harmonics across HF and L-VHF regions. The resource outlines a systematic procedure for pinpointing RFI origins, including disconnecting peripherals and using a portable AM/SW receiver with a ferrite rod antenna to localize strong interference sources. The document categorizes RFI mitigation into shielding, filtering, and design problems, offering practical solutions for each. It recommends applying conductive sprays like _EMI-LAC_ or _EMV-LACK_ to plastic casings of radios, monitors, and CPUs to create effective Faraday cages, emphasizing proper grounding and avoiding short circuits. For filtering, the guide suggests using line filters, ferrite beads, and toroids on power and data lines, and small value capacitors (e.g., 0.01 uF for serial/parallel, 100 pF for video) to shunt RFI to ground. It also discusses the use of bandpass, high-pass, low-pass, and notch filters on the receiver front-end or antenna feed to combat specific in-band noise.

A look behind the scenes, learn how the ARRL laboratory evaluates new products, and what all those numbers mean to you by WA1SVF

An overview of coax cable often called coaxial feeder or RF cable, used to feed antennas and deliver radio frequency power from one point to another

ARRL Resources about Lightning Protection for the amateur radio station

A searchable database of online websdr receivers, lists OpenWebRX, KiWi SDR and WebSDR from all over the world, providing a web interface to search and filter links to websdr

Information about RF driven lamps

The Western Oregon Radio Club operates Linked Amateur Radio repeaters in the Portland Oregon Area

The Mobileer group is for California Amateur Radio (Ham) operators to discuss family mobile radio caravan and camping trips.

Solar Flux, Geomagnetic Activity indexes and interpreting their relation

Site of the section NOL Noord oost limburg Belgium

JT44: New Digital Mode for Weak Signals

German ham radio portal

Reviews of two types of poles used on portable operation to support wire antenna and accessories to plant poles in the ground by N4KGL

Solar data with current solar status, forecast and propagation report

German vacuum tubes dealer

A project for a ground mounted 4 square antenna by DM9EE

N5KGL interesting article on portable antennas. Greg report his experience on using several types of portable antennas.

The RSGB Band Plan is normally published annually in the February edition of RadCom and additionally reviewed mid-year. It is derived from the IARU Region 1 Band Plan taking into account any proposed national variations or special amendments, which are considered necessary by the relevant spectrum manager.

Solar activity can aid or hamper HF propagation beyond line-of-sight range, WA1SVF and N6BV answers to questions about Sun influence on radio signals propagation

Over 70 distinct contest rules are cataloged, including major events like the _ARRL DX Contest_, _CQWW DX Contest_, and numerous state QSO Parties, providing direct access to official guidelines. The resource also compiles contest calendars from sources such as _WA7BNM_, ARRL, and _LA9HW_, offering a centralized hub for upcoming operating activities. Historical contest records are detailed for various events, including _ARRL 10 Meter Records_ for W/VE and DX, _CQWW DX Records_, and _ARRL Sweepstakes_ results by K5KA. This compilation allows operators to review past performance and understand competitive benchmarks across different bands and modes, aiding in strategic planning for future contests. The resource serves as a practical reference for both casual participants and serious contesters.

Radio Free Europe/Radio Liberty website provides news and information on various topics beyond borders. It includes top stories, visuals, newsletters, and in-depth coverage. The content is useful for staying updated on global events and perspectives.

Killing RFI from your PC without turning it off

Calculate how to set call signs

Article about an end-fed anntenna for the 17 and 12 WARC Bands. 30 meters is not included in this project. This antenna includes a 14 windings unun impedance transformer using a FT-140-43 ferrite toroid, that should be enought for a 100W PEP.

Spanish only website with mail list and meteor showers reports.