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A nice resource from AE5X John a QRP opertator

Article by N6LF on a top band vertical antenna array system

Mac the Scope is a professional quality signal analyzer, 1/3 octave RTA, signal generator, and more.

G4ILO compares popular antennas for 2 metre band handhelds so as to see how much you lose using a small inconspicuous antenna or how much you gain by using a long antenna.

Amateur radio links providing information sources for DX, QSL, Clubs, etc.

An inexpensive rechargeable CMOS battery system that can be built from readily available parts.

Antennas, Standard Delay Line Systems, Crossfire Phasing or Hybrids

Donwload the Kenwood TL-922A user Manual

Amateur Radio - Antenna Zoning Book by Fred Hopengarten Telecommunications Lawyer

Amateur Radio pictures to add Interest to your Website. Jpeg, GIF and Animated GIF files available to download.

Compiles a detailed calendar of RTTY contests, providing essential information for digital mode enthusiasts. It lists contest dates, links to official rules, and often includes historical results and records, enabling operators to plan their contesting schedule and review past performances. The resource covers a wide array of RTTY events, from major international contests like the _ARRL RTTY Roundup_ and _CQ WW RTTY_ to smaller, regional competitions. Operators can quickly identify upcoming RTTY contests, review specific rules for each event, and access historical data to gauge competition levels. For example, the site details the _BARTG RTTY Sprint_ and the _SARTG New Years_ contest, offering a centralized hub for RTTY contesting information. This resource is particularly useful for those aiming to improve their digital contesting skills or track their progress against established **records**.

A special edition of AALog, optimized for the use in a lot of different contests. It can export file in Cabrillo, .SUM and .ALL files, ADIF. To use this program in CW and digital modes you need to use CwType and TrueTTY.

Review of Cushcraft MA-5B multiband Antenna after some days of usage.

Easy to build CW decoder based on DSP Goertzel code. If you want to build a cw decoder without using other active components than an atmel 328, Arduino UNO, then this is sure something for you.

An antique radio collection

Kenwood TS-590S features, accessories, specifications and details

My Ham Shack - Personal Ham Shack Web Pages - At MyHamShack you get a free personal web page for your shack - Your Shack. Your Ham Shack Pictures, Blogs and Projects.

A general article on CMC, common mode choke include a description and tipical usage.

Find out how much to adjust the length of a quarter wave whip or a half wave dipole rather than the outright cut-and-try method.

5M2TT Log Search Liberia 2011 dx pedition

KE7FTE, N7QQU and W9ERT show us the "drag and drop" flexibility of the Icom D-STAR System.

Get familiar with the basic operating procedures for using the JT65 mode of HF digital communications, a 35 pages PDF file.

ECONCO has been rebuilding vacuum tubes for more than 30 years. Our commitment to quality, and concern for the environment has won us the acclaim of clients worldwide.

Bencher Tech Notes: Selecting your next yagi

Personal SWL log with various information from SWL tips and tricks to Frequecy Logs to general SWL information.

Review of the Kenwood TS 830

Amateur (Ham) Radio Practice Exams and Study Aids, as well as other content of interest to the Ham Radio community. Presented by Michael Burkhardt W8MHB.

Construct a compact, 20 meter rotatable dipole antenna of durable weather worthy components supported at a single point obviating the need for multiple supports and multiple support ropes crossing the yard.

Constructing a Compact Low Cost Sprinkler Valve Antenna Launcher

Antennas for Broadcasters, PSI manufactures a complete range of slot antennas for UHF television broadcasting

This page list schedules for the E10 Spy Number shortwave radio station, commonly believed to be run by mossad.

Recordings of RF noise from personal computers, peripherals and related equipment. If you can match noise at your location to one of these files then you can be confident that you know where your noise is coming from.

Ham Radio Store based in UK Proprietor Robin C. Worsley G0MYR

W5UXH version of OZ1JHM Morse Code decoder project

Accurate frequency measurement is crucial for amateur radio operators, particularly when building or troubleshooting transceivers and test equipment. This resource details the construction of a _PIC microcontroller_-based frequency counter, providing a practical solution for precise frequency display. The design incorporates an LCD readout, offering clear visual feedback of measured frequencies. The counter can operate as a standalone unit, useful for general bench testing, or be integrated directly into a receiver. Its built-in offset functionality allows for seamless integration, enabling the display of the received signal frequency rather than the intermediate frequency. The project focuses on accessible components and construction techniques, making it suitable for homebrew enthusiasts. Key features include a measurement range up to **50 MHz** and a compact form factor.

A personal review about the Yaesu FT-817

EB5AGV / EC5AAU Boatanchor collection. Useful data on TV-testers, Collins, Drake, Hammarlund, Hallicrafters, National, Heathkit, EF Johnson.

The AB2RA bowtie 80 meter antenna includes also a 40 meter dipole

This circuit enables fair copy of strong 444 MHz signals, off a local repeater, using a 2m rig and a 1/4λ 70 cm indoor ground plane antenna.

Errante's virtual ground Balun, a state-of-the-art high power HF balun family.

Florida Alfa Tango d'Alsace.

Listen to Missouri State Highway Patrol live scanner

Morse code trumps SMS in head-to-head speed texting combat

This is not a sophisticated automatic keyer but it is lot QRP to build and to have fun operatin

Small antenna, what causes loss and how to increase radiation resistance in small antennas., A description of loss and radiation resistance.

Printable Quick Reference Card for Yaesu VX-7R

Noise eliminating products. Remove unwanted background noise and interference leaving only the speech. Clear communications, listen stress free. Dsp noise cancellation solutions.

Some Notes on the Slim Jim Antenna by Dave Coomber M0UXB

Theory of the ferrite rod antenna

Test equipment and tools