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High End isopole VHF & UHF antennas for Amateur, Commercial and Military applications.

The Boat Anchor Manual Archive

How to build your own beverage antenna for 80-160 meters band by K5ZD

How could we share the Beverage antennas on more than one station using this homemade remote antenna switch, a project by TK5EP

This article presents a method of controlling preamps, antenna switching and polarization switching remotely without the use of control cables.

Iguana Villa - Aruba island vacation rental home guest house, a three bedroom private home in Malmok, Aruba.

Ham radio site with Amateur Links is a collection of over 2800 Ham Radio sites services verified each week. Interesting content for beginners and seasoned ham operators alike.

The KK7UQ computer to radio interface, sound card interfaces, IMD meters interface products

An Off-center-feed antenna that covers 80, 40, 20, 17, 15, 12, 10, and 6 meters

Free memory management software for the Yaesu FT-991 and FT-991A models. It runs only on Windows 7, 8, 8.1, 10 both 32 and 64 bits, it also permits basic remote control features and allow backup and restore settings and memories. Documentation in mainly in French.

Telescopic antenna towers, fixed antenna towers, stacked and sigle section antenna towers, trailer towers, cargo trailers accessories

Testing the tv reception mod for the us version. tv reception was disabled on the us version because of the possibility of it being used while driving.

A simple RF power amplifier initially designed for 40 meter band can work on 10 15 20 40 80 meters

Notes on Axial-Mode Helical Antennas in Amateur Service. Helix Basics, Modeling Issues, and Short Helical Antennas Over Perfect Ground

DTMF-KIT1 board for Transceiver, board for Telephone-Line and Remote-control without a HAM Transceiver

Information about pirate radios, what they are and why are considered pirates

A free to download and print, paper log sheet useful for portable amateur radio operations, in a PDF file.

Broadcast Tower Specialist. Offering Manufacturing, Engineering, Erection and Tower Extension Services. Self Supporting or Guyed Towers.

Homebrew a cobwebb antenna for the HF bands. This page describe a cobwebb multiband antenna resonating on 14 18 21 24 and 28 MHz. The cobweb antenna model can be considered a fan dipole, or better, multiple dipoles fed in parallel.

A project for a home made 5 element yagi-uda antenna for 2 meters, covering 144-148 MHz band by N1BMX

A lower power desktop linear with integrated 120vac power supply. This, very compact, dual 811 version will deliver about 300 watts output. Covers all bands including WARC bands.

An interesting article by K3DAV comparing the COMET CHA250B to other HF multiband vertical antennas

Specialize in servicing modern HF/VHF/UHF multimode transceivers and receivers Icom, Kenwood, Yaesu, and a few others

List of police, fire and emergency scanner codes listed in numerical order.

Win92 - Windows-based data management for the Pro-92/2067 trunking scanner

Transistor and its history and lot of related infos

Adding a Panadapter to the Yaesu FT-817

Every ham needs an RF power meter. Here is a high performance unit to build at home.

Double Bazooka Antenna, a simple coax based and broad band antenna you can easily build

St. Louis County Police Dispatch

Details Guglielmo Marconi's foundational contributions to radio communication, highlighting his 1898 Patent **7777** which introduced tuning circuits for independent simultaneous communications. Chronicles the historic transatlantic reception of the Morse code letter 'S' on December 12, 1901, from Poldhu, Cornwall, to St. John's, Newfoundland, a distance of over _3,500 kilometers_. The exhibit showcases early Marconi 10-inch spark transmitters, identical to those used on the _Titanic_, alongside Canadian Marconi crystal detector models. It also features high-end commercial receivers like the IP501, weighing **87 pounds** and originally priced at $595.00, demonstrating the robust construction and technological advancements of the era.

The UK amateur radio licensing scheme features three distinct tiers: Foundation, Intermediate, and Full, each granting specific operating privileges. For instance, the **Foundation Licence** permits a maximum of 10 watts output power on most allocated bands, with restricted band access. The Intermediate Licence allows up to 50 watts, while the **Full Licence** grants access to the maximum UK legal power limits and all available amateur radio band allocations. UK call sign prefixes and formats provide insights into the licensee's class and the approximate issuance date. For example, M3, M6, and M7 prefixes with three letters denote Foundation Licences issued from 2002, 2008, and 2018 respectively. Intermediate Licences, often starting with "2E0" or "2E1" followed by three letters, were issued from 1991 onwards. Full Licences encompass a broader range of prefixes like G2, G3, G4, G0, and M0, with varying letter counts indicating different historical license classes and issuance periods, such as G3 plus three letters issued between 1946 and 1971. Special prefixes like GB are reserved for repeaters, beacons, data mailboxes, and special event stations, with specific numerical sequences (e.g., GB3 for repeaters, GB7 for data repeaters/mailboxes) indicating their function. Optional prefixes such as GC, GD, GI, GM, and GW denote specific UK countries (e.g., Wales, Isle of Man, Northern Ireland, Scotland, England) and can also signify club stations.

TX RX Systems Inc. manufactures signal boosters, rf antennas, transmitter combiners, cell enhancers, land mobile radios, duplexers, receiver multicouplers, bidirectional amplifiers, bda, rf amplifiers, rf filters, rf cavity filters, rf combiners, rf components, in building rf coverage, repeaters, repeater amplifiers, rf management equipment, rf systems, and rf solutions. TX RX Delivers Reliable Solutions.

Backpacking, boating or mountaintopping ? Invest your time and pack this novel directional gain antenna on your next expedition

Statistics based on FCC Database. Data is compared to previous perions.

Universal radio IC-V8000 page includes accessories and photos

An emergency service provided to the city of Mountain View, California and the surrounding communities in time of need.

How test a Balun quality by W8JI

Frequencies, links for scanners, email lists, online audio and more for Maryland, DC, and parts of Delaware and Virginia

A helpful guide to building your own beverage-type low noise receiving antenna for broadband use. Easy, do-it-yourself suggestions to optimize directional performance, even if you lack a farm to put it on.

Nowdays lots of people are putting up antennas to either beam in different directions at the same time or just to stack them and get a lower angle of radiation. Use this stackmatch to match you array.

High Power RF Amplifiers by Delta Sigma, Inc

Search the J5T Log online DX Pedition to Guinea Bissau 2017

Pictures taken during lifting of a Rohn antnena tower

Original drawing and design of a 4 and 7 elements yagi antenna for 50 Mhz

QRP Station in a Bag is a complete QRP station in an old laptop PC carrying case (photo). It is a true "Work in Progress" in that wd8rif is constantly changing the contents of the bag as learn what works and what doesn't.

Generates dial tones using the Soundcard. A neat tool for sending out short sequences of DTMF tones.

AR-82000 software

An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.

DX Atlas - DX Locations of the World by QRZ.com