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How to make a Double Extended Zepp Antenna, almost a conventional halfwave dipole fed in the center with 300 or 450 ohm feed line by kh6jrm

Amateur radio products including Tarheel Antennas and ginpoles

United States and Canadian call sign/scanner frequency databases, Worldwide airport frequencies, FIPS codes, Mass Media searches for DXing and more!

The rhombic antenna is a diamond-shaped antenna, suspended between 4 masts.

Italian magazine mainly dedicated to homebrew and parts

Comparing the TH-F7E with the Icom IC-E90

One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.

The Old Tube Radio Network is dedicated to those real, American-Made, Old Tube CB Radios

This grid locator map uses Google map apis to find your QTH locator by simply clicking on the map. You can either enter your QTH locator and find the calculated distance and bearing between your QTH and another grid square.

news and views from the UK about the course of CB in the U.K. and Europe.

NW7US logging program for palm/os

This article documents the modification of 2 types of Hewlett Packard switching power supplies to enable their use as power sources for ham radio equipment

Free software tests for the Technician, General and Extra class licenses by Shenandoah

How to Operate Ham Radio on a Linux Workstation

SPE Makers of RF power amplifiers like Expert 1K-FA Expert 2K-FA

Welcome to Mike's radio collection, I collect and restore radio sets from the 1930's to the 1960's. I have built up quite a Collection of radios over the years, including Some rare Dutch and German sets.

Modifications and messages about the Yaesu FT-450

Getting started with RTLSDR on MacOSX

Introduction to IRLP

Importance of receiving antennas in working dx stations by Greg Ordy

ARRL Laboratory Expanded Test-Result Report ICOM IC-746 Pro

Excellent slides explaining radio and radiowaves generation basics

The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.

Comprehensive site for crystal radios. Info on the third annual xtal set bcb dx listening contest.

The website offers a comprehensive guide on high-frequency (HF) skywave propagation for amateur radio operators. It explains HF radio propagation fundamentals, including electromagnetic wave properties, HF bands, and propagation modes like skywave, ground wave, and line-of-sight. The site focuses on the ionosphere's critical role, influenced by solar activity, in refracting HF waves for long-distance communication. Real-time monitoring tools such as DX clusters, beacons, and digital modes like FT8 assist users in tracking band activity and propagation conditions globally. Forecasting methods are detailed, highlighting scientific insights into solar-terrestrial interactions and ionospheric variability. The guide also covers advanced topics like NVIS and gray line propagation, ionosonde data, and propagation prediction models, making it a valuable resource for ham radio enthusiasts aiming to optimize communications

Technical details of the yaesu FT 9000

The Middle Tennessee Amateur Radio Society is composed of Hams in Middle Tennessee who are dedicated to promoting Amateur Radio, providing public service communications, and having FUN doing so.

This is a user-friendly web page based D-STAR call sign calculator that requires no installation or configuration to use.

A freeware apple Macintosh-based program that helps amateur radio contesters by converting a log from a radio contest into the Cabrillo file format which may be submitted to the contest sponsor.

Article about homebrewing a G5RV antenna by KC6CFF

Listen online to NYPD Special Operations Division live radio audio feed.

TinySDR for 80m band and ZetaSDR for 40m band

These instructions use simple, generally familiar examples of equipment types and are designed to help you find the adjustment that suits you best. If you are looking on how to adjust a morse key, bencher key, paddle or straight morse key, here you will find all instructions.

Radio communication equipment installation recommendations

It is a application which can be used for troubleshooting CB radio faults, by giving a graphical display of the normal operating frequencies generated by various parts of the CB radios circuits, it can help you identify if a frequency is incorrect or even missing. Another good use for this software is simulating possible frequency expansions, as it allows you to choose any frequency that the PLL is capable of generating, so you can see what the radio will allow you to get !

Listen to the K2JJI repeater (146.70- PL 100.00 Hz) located on Fulton Co. NY. Coverage of grids near and around FN23/FN22.

Yaesu FT-2000 Audio Settings 3 stage Parametric Equalizer Speech Processor OFF

Knobs, slicers and antique radio parts for heathkit Johnson Kenwood Hallicrafters Hammarlund and many more

A system view of the line isolator

RADIOING eEngineer RFI EMI information

Basic information on the folded dipole antenna

Russian radioscanning site

Antique Radio Schematics and Service Manuals for Tube Radios

Radio shop in nevada

Beautiful Colorado mountain cabin with ham radio access at the foot of Mt. Princeton

An old post by John Doty about effects of noise in longwire antenna.

A PC headset to Rig adapter. Include a circuit diagram and a full part list for the project

SM5SVM ARDF resources

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