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A self supporting vertical antenna for 80 meters by W9OY include pictures and construction details

Rigpix database pictures and specifications of Yaesu FT-857

Circuits, pictures and data about toroids, tubes and home made power amplifiers

Compact HF antennas for home and mobile use, compact HF maritime antennas, manufactured by multi-band antennas

Demonstrates the essential steps for winding **toroidal cores**, a fundamental skill for amateur radio operators engaged in homebrewing and kit building. It addresses the critical aspects of selecting the correct core material and wire gauge, emphasizing the importance of precise turn counting and consistent winding tension to ensure optimal circuit performance. The resource details methods for preparing the wire, including techniques for safely removing enamel insulation from leads using flame, sandpaper, or a solder pot, and provides guidance on tinning the exposed wire. Explains the process of mounting the wound toroid onto a printed circuit board, highlighting the need for careful lead placement and secure soldering to prevent shorts and ensure mechanical stability. It also offers a practical formula for calculating the required wire length based on the desired number of turns and the specific **toroid** size, referencing common core types like T-50 and FT-240. The guide stresses the importance of verifying the inductance of the wound component, often using an inductance meter, to confirm it matches design specifications. Provides practical tips for handling multi-filar windings and managing short lead lengths, which can be particularly challenging. It underscores the necessity of meticulous attention to detail throughout the winding and installation process to achieve reliable and efficient RF circuits.

A popular 2 meter antenna returns in an improved, easier to reproduce form, 2008 QST article

A quarter wave ground plane for 70 cm

Local and DX contacts from tight spaces, it works from 40 to 17 meters

Excellent low-noise receive antennas originated by EA3VY and optimized for 160 meters by K6SE

Homebrew project of a dipole for six meters band by KK5ID

Multiband and monoband HF Vertical antennas and rotatable dipoles manufacturer based in Texas USA

Long Waves, Short Antennas, designing antennas for MF and LF communications

Portable magnetic loop antennas - G4TPH Mag-loop antennas Reviewed in PW and RadCOM, Both QRP and QRO, Portable. The only Magloop on the market that is fully portable

Free PCB software is a snap to learn and use. For the first time, designing circuit boards is simple for the beginner and efficient for the professional.

Radio / electronics repair ICOM authorized service center

United States Scanner Frequencies, Phone Numbers, and IP Addresses

Features and specifications for Yaesu FT 857D

A small company that specializes in antennas and accessories for radio hobbyists who enjoy DXing the AM broadcast and LW bands

CB Radio and 10 through 12 meter band radio dealer. Ranger Communications factory authorized dealer. Service 10 and 12 meter and CB radios.

A telescopic pole that you adjust to suit the band you're working on , tested on 40 20 and 15 meters band by M0PZT

GitHub reposotory of QradioPredict, a radio propagation prediction tool for VHF-UHF, based on the Irregular Terrain Model, also known as Longley-Rice. Can be used as a repeater site planing tool. Has an internal APRS client which can be used to display stations as a landmark.

True Ladder line and Wire antennas

Based in San Diego CA, collectible radios, test equipment, tubes, antique radio parts, speakers and kits

An 87ft inverted L portable antenna working on 80 40 30 20 15 meters band

Terrasat Communications specializes in advanced RF technology for satellite communication, focusing on _Intelligent Block Up Converters_ (IBUCs) and Solid State Power Amplifiers (SSPAs). These products are engineered to enhance satellite link performance, offering features like extended frequency ranges and high power efficiency. The IBUC series, for instance, integrates a BUC with an SSPA, enabling operators to install, configure, and monitor units for both commercial and military satellite applications, ensuring reliable, high-performance connectivity worldwide. The company's offerings support various satellite bands, including C, X, Ku, and Ka, providing solutions for diverse operational requirements. Their technology is designed for robust field performance, with products like the _IBUC2_ and _IBUCG_ models demonstrating the integration of advanced diagnostics and control capabilities, which are crucial for maintaining optimal signal integrity in demanding environments. Terrasat's focus on _SSPA_ technology underscores a commitment to power efficiency and compact design.

SATBUSTER for Windows is especially designed for satellite visual observers and trackers. Its users, mainly amateur astronomers and radio amateurs, appreciate both the accuracy and the simple to use graphical interface.The software is aimed to hobbysts. However a growing number of plain folks are starting to use this tool to recognize and look at the International Space Station and the Space Shuttle during its missions too

What Amateur Radio (ham radio) is. How to get started in ham radio. License requirements. Where to find instructions.

An attempt to modify and try out the unusual antenna first described by Bill Petlowany, K6NO, in World Radio Magazine

This is from a posting on the BARK PBBS Keith, WB2VUO

A page dedicated to the doble bazooka antenna with dimensions for all HF bands

Electronic Kits and parts

Your world-wide source for Heathkit, Drake, Collins and Dentron amplifier parts & upgrade kits

Ham Radio Android Apps to displays your current QTH locator on Google Maps using the GPS or WiFi / network location.

Icom IC-706 Extended receing mod From OH6LGM

Amateur radio products and support for rig experts brand in the USA. The new USA RigExpert SD, RigExpert Plus, MixW Software

A multiplatform software oscilloscope and logical analyzer software that acquires data using an arduino or a parallax USB Oscilloscope

TS-850S typical faults and solutions

Unique and Hard-to-Find accessories for Amateur Radio. Featuring Plasti Dip products, DK9SQ Masts, Wire Antennas, AEA Antenna Analyzers and RF Connectors too!

A beam fractal antenna for 20 meters band

Amateur Radio and Commercial Radio licencing exam practice. You can visit the Technician, General or Extra license pages where you can pick and choose the topics to practice so you can build up to a complete exam.

The half wave dipole antenna is a simple and practical antenna model that consists of a half wavelength long centre fed conductor.

Video, how to build a 130 Watt Dummy Load for HF amateur radio

Sales CB Radios and accessories online

HFUnderground.com is dedicated to documenting longwave, mediumwave, and shortwave stations, including broadcasters, utility/military stations, pirate radio and spy numbers stations.

Antenna adaprter mods fot the Kenwood TH-F6A or TH-F7

East Cost, deliver kenwood amateur radio parts

Amateur Prefix Maps by UT0UM updated with ARRL DXCC and ITU changes, available for download in PDF

Antenna assembly and tower raising

Forum thread comparing FT-60 to VX-6R

Design for a very low cost 6-digit frequency counter module using of the shelf components