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An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.

A method for supporting a balun on a Chushcraft A3S antenna. This allows the balun to be isolated from the boom, thus reducing the effect of introduction of reaction with the balun core.

Complete and updated IARU QSL bureaus addresses

How to adjust your SWR on your radio and why.

A 4 elements handitenna for 70 cm band. This is my version of the K5OE Handitenna. This one is a four Element instead of three, as I had less of a crunch on space than he did. The 1st three elements (Reflector, Driven Element, and Director 1) are the same dimensions as his were.

ARRL review ICOM IC-756 pro III HF/6 meter transceiver at central michigan ARC PDF File

Dedicated to State-of-the-Art lightweight portable radio. Sotabeams produces and sells amateur radio products dedicated to ham radio portable operations. Antennas, supports and masts, filters, wires and more accessories for amateur radio.

DX_Central, a compact desktop application, provides amateur radio operators with critical propagation data by aggregating solar statistics and imagery from various authoritative sources. This includes real-time information from agencies like NOAA and NIST, offering insights into current space weather conditions that directly impact HF propagation. The software is designed for both Linux and Windows operating systems, making it accessible to a broad range of hams. It presents a concise overview of solar activity, which is essential for planning DX operations and understanding band openings and closures across the HF spectrum. Operators can utilize the displayed solar flux index, K-index, and other relevant parameters to make informed decisions regarding their operating times and target bands, optimizing their chances for successful long-distance contacts.

Ham Radio Kits, morse keyers, Morse code voltmeter / DC switch / battery saver

This max size magnetic loop antenna for 14 MHz with a totall circumference of 6m is designed to attach to a wall

How to identify correct version of your TS-570

There is not a personal design on this page, just I've transfered useful notes from PHILIPS RF Bipolar Transistors - Data HandBook about BLY89C VHF Power transistor, which is very popular among Amateur Radio homebrewers

Antenna experiment a Delta loop antenna for 7 Mhz band

Personal Web Site of UX7CQ. Information about Ukraine. Old military radios collection. CW Straight Keys.

Bergen Amateur Radio Association, Bergen County, New Jersey

FT-1000MP series radios solid-state replacement for the CFL backlight. Eliminates the delay and brightness issues. Works on MKV, MKV Field, and 1000MP radios.

Echos of USAF (Formally NAVSPASUR) radar signals reflected off of meteor trails received at Roswell, New Mexico

A very simple receiver project by PA2OHH

PSK31 is a digital communications mode which is intended for live keyboard-to-keyboard conversations, similar to radioteletype. Its data rate is 31.25 bauds (about 50 word-per-minute), and its narrow bandwidth (approximately 60 Hz at -26 dB) reduces its susceptibility to noise.

Australian amateur radio band plans in pdf format

A SSB CW transceiver for six meters band with schematic and block diagram

Build this cheap and easy satellite downlink antenna

RF Power Meter using for reading a standard Digital Voltmeter by Iulian Rosu, YO3DAC / VA3IUL

Rotator controller, azimuth & elevation control of rotators (automatic antenna turning) based on commands from computer. A project by Pavel VACHAL and OK1DX - KF9VM

Ham Radio community web site

Adding extra directivity to the Moxon Rectangle for 6m, 4, and 2m

A javascript online calculator for popular wire antennas, from the standard easy to build flat-top dipole, to the inverted V dipole, but also the Quad Loop, and the equilateral delta loop antenna

Live streaming audio of the K7ICU repeater

Improper grounding or earthing system can cause several unwanted RF interferences (RFI) to television sets, broadcast receivers, hi-fi sets and telephone sets. In this Article the author explain how to setup a proper radio shack grounding using coaxial cable and ceramic disc capacitor

Standard time zone map of the world in a jpeg file

A complete DIY Raspberry Pi Weather Station including software, capable to read wind speed, wind direction, rain gauge and with a temperature and humidity sensor along to a camera.

Australia, Sydney Fire information and monitoring website, Live sydney radio fire stream.

An excellent introduction to ham radio bands, which bands to use and when.

This article describes a simple Inverted L antenna for the HF bands designed to work on 80m, 40m, 30m and 20m

Notes on W3EDP Antenna by M1KTA

Make your own loading coils for antenna projects using Caterpillar Grommet strips.

KA9LXP's HF antenna mast page

PCB for the DJ9BV Power Meter taken from DUBUS 3/87

Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.

Located in southern Ontario Canada, supplier for HF VHF antenna kits, aluminium tubing, portable j-pole antennas, lightning suppressors, connectors and adapters

MARAC was organized in 1970 as a Kansas Nonprofit Corporation, as a support group for county hunting and mobile activity

Myths and basic truths on transmission lines

Approximately 800 x 600 resolution is recommended for optimal viewing of the _Connecticut Radio Society_ (W1CRS) website, which serves as a hub for active amateur radio operators. The site encourages participation in club activities, particularly emphasizing operating events and contests. It provides a digital presence for members and prospective members interested in local ham radio engagement. The society's focus includes general amateur radio operation and competitive contesting, aligning with its classification as a contest club. The resource is designed to foster community among hams in Connecticut, offering a point of contact for those seeking to engage with fellow operators and participate in organized radio events. The club's callsign, W1CRS, is prominently featured, signifying its identity within the amateur radio community.

Demonstrates a practical approach to improving Morse code proficiency through a curated selection of audio files. The resource offers downloadable MP3 files designed for CW practice, catering to operators aiming to increase their copying speed and accuracy. Content includes both standard words and specific amateur radio callsign groups, which are crucial for effective on-air communication. The files are organized to facilitate progressive learning, allowing users to select material appropriate for their current skill level. This collection supports the development of essential CW operating skills, particularly for those preparing for contests, DXing, or general ragchewing on HF bands. The _ON6ZQ_ site, maintained by _Christophe David_, also features information on his _Reverse Beacon Network_ skimmer and _SOTA2APRS_ feed, indicating a strong focus on active operating modes and digital integration.

Hellschreiber is an interesting ham radio mode developed back in the 20s. It is a bit strange and different, but fun. I'll explain what it is, then I make a couple contacts during the Hellschreiber contest.

Association with free membership for telegraphy lovers across the world.

Chinese manufacturer of Software Defined Radio for commercial, public and amateur radio market. Markers of H1 H1Plus H2 Q900 SDR transceivers

How to make a half l or quarter l coax cable for a specific frequency

Reference guide for amateur radio equipment. View, compare and share ham equipment specifications and personal experiences.

A magnetic longwire unun with a T130-2 Iron Powder core by M0UKD