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A project by Don Wilhelm W3FPR

The history of radio documented in thousands of publications including copies of popular US and UK amateur radio magazines and newsletters since 1930s

Accessing antennas at great height poses many potential safety hazards. Essentially, climbing ladders or scaling towers, regardless of whether or not a commercial safety harness is fitted, is risky business indeed particularly for those hobbyists in their latter years or not as physically capable as others.

Czech Castles Award is given to any amateur radio operator who can provide confirmation of contacts with radiostations from castles and fortresses in Czech Republic.

A homemade delta loop antenna for six meters band in German

ARRL-recognized amateur frequency coordinating body for the State of Florida

The Green Valley, Arizona Amateur Radio Club

Baofeng UV-B5 LCD background light is turned on only when some keys are pressed and stays on far a very short time. This article explains how to use flash switch which is used in UV-B6 version but in UV-B5 has no function.

The resource, formerly JH6QIL's blog, now displays a service termination notice from teacup. byGMO, the hosting provider. It explicitly states that the teacup. byGMO service ceased operations on August 1, 2022. The page conveys a message of gratitude to users for their past patronage of the platform. This content serves as an archival record of the service's discontinuation rather than an active amateur radio blog. The original blog content from **JH6QIL** is no longer accessible through this URL, indicating a complete cessation of the hosted service.

There are quite a few variants of the design accompanied with many opinions on the effectiveness of the antenna. This page features links to some similar projects and a homebrewed personalized version of this portable antenna tuner

RF Saferty articles publishes by ARRL

Home discussion group for NIAN

Website of RP DX GROUP. Group was found in 1992 in Pulawy, Poland.

Sisterhood Of Amateur Radio

This article presents an innovative homebrew antenna design utilizing surplus ladder line as a receiving antenna for HF and MF bands. The Ladder Line Antenna (LLA) transforms standard 450-ohm ladder line into a directional, bidirectional, or omnidirectional antenna system through different termination methods. The design, which requires minimal space and height, achieves 6-10dB front-to-back ratio on 40-160m bands using a 33-foot length. This DIY wire antenna project offers an efficient, low-profile solution for amateur radio operators, featuring broadband operation without ground radials and easy installation below fence height.

Amateur Packet Reporting System (APRS) operations often require compact, reliable solutions for transmitting position data, particularly for mobile or portable stations. This resource details the construction of the _Tiny Track-I_, a transmit-only APRS tracker designed for straightforward integration with a VHF radio and a Global Positioning System (GPS) receiver. It enables hams to broadcast their location without the complexity of a full-duplex TNC. The project outlines the printed circuit board (PCB) layout and schematic, based on an original design by N6BG, with a personal PCB drawing by SV1BSX. It includes specific component placement and notes an additional 10uF/10V capacitor (C5) for improved IC voltage decoupling, a modification not present in the original N6BG diagram. The unit connects to a computer or GPS via a DB9 female connector. This tracker is ideal for basic position reporting, offering a simple and effective way to participate in APRS networks. Its small footprint makes it suitable for vehicle installations or field deployments where space is limited, providing a **reliable 9600 baud** data stream for location updates.

ZL7 Chatham Island Expedition by OE2SNL Franz 2014 March 10th to March 28th 2014

E44PM Palestine DX Pedition December 2011

The G5O Contest Group blog documents contest operations and related activities of the Stockport Radio Society. It covers various **HF** and **VHF** contests, providing insights into station setup, antenna configurations, and operational strategies employed during events. The content frequently includes post-contest analyses, discussing scores, propagation conditions, and technical challenges encountered. The blog entries detail specific contest participations, often featuring photographs of the operating environment and equipment used. It serves as a chronicle of the group's contesting history, offering practical examples of multi-operator station management and logistical planning for competitive amateur radio events. The group's focus on both local and international contests is evident through the range of events covered. Regular updates provide a continuous record of the group's engagement in the amateur radio contesting community.

Gimme Five reloaded, a compact 5 band QRP SSB transceiver in SMD technology. This unit covers 5 bands within the amateur radio spectrum (3.5, 7, 14, 21 and 28 MHz). Receiver is a single conversion unit with an interfrequency of 9 MHz. Transmitter uses 5 stages and has got a power level of 10 watts PEP output.

Malaysia World JOTA

WiFi Antenna, WiFi Amplifier, RF Splitters, RF FIlters, Adapter, Video Cable and Custom Connectivity Products

A blog dedicated to military communications shortwave intercepts, sponsored by the Teak Publishing

Amateur Radio Station N1UL/mm Ulrich L. Rohde, includes a maritime mobile antenna shack

N1YWB's Ham Radio Blog

Dedicated to adventures in Ham Radio Technology

Hamradio links and D-star and photos from Sweden and Europe.

A not-for-profit organization incorporated to promote ham radio operation on the bands above 50 MHz in the southeastern United States.

This is a synopsis of a talk presented to the Sydney VHF DX GROUP by VK2ZAB on how, when and why is convenient to build a Yagi antenna stack.

A complete review of the Ten-Tec RX340 all mode HF receiver

This page is a detailed description of a 6CL6 and 807 valve transmitter. The page includes the complete circuit diagram to build this transmitter and several pictures

Personal Page UR4IOR from Ukraine, with some nice personal photos.

VU2NAN Nandu's Crystal Radio Pages

he State Of Jefferson Operators' United Relay Network and Emergency Radio Society

Ham radio club in west Los Angeles

A 30 Meter, Discrete Component CW Transceiver Built Manhattan-style

Christchurch Amateur Radio Club Branch 05 of NZART ZL3AC

Rules of the CQ WW DX Contest in different languages

DARC Ost C11

IARU HF Contest, goal is to contact as many other amateurs, especially IARU member society HQ stations, around the world as possible using the 160, 80, 40, 20, 15 and 10 meter bands.

Resource page for the ICOM IC-R75 at RadioReference

An interesting review of the Icom 2720H VHF UHF amateur radio mobile transceiver with pros and cons

The Lake Country Amateur Radio Service consists of interested amateur radio (Ham Radio) operators from the Virginia and North Carolina counties that surround Kerr Lake and Lake Gaston. Our members have a variety of interests and backgrounds, bringing rich and varied experiences to the club membership.

List of countries that have been worked from the Czech Republic on 50 MHz band since January 1, 1993

The Poole Amateur Radio Society (G4PRS) conducts weekly meetings every Thursday from 19:30 to 22:00 at St Aldhelms Church Hall in Branksome, Poole. The society provides comprehensive training courses for all levels of amateur radio licensing, including Foundation, Intermediate, and Advanced qualifications, supporting new entrants and experienced operators in their progression through the UK licensing structure. Members engage in diverse aspects of the hobby, fostering a vibrant community for local hams. Key activities include participation in various contests and events, reflecting a broad interest in radio communications. The society's commitment to education is evident through its structured _licence training_ programs, which prepare candidates for RCF examinations. The club maintains an active presence, with interests spanning general amateur radio operation, contests, and technical experimentation, as indicated by its historical association with figures like _Marconi_ and its support for events such as JOTA.

When on the trail, at Field Day, or whenever a good antenna is unavailable, a random wire can save the day, but it is important to understand its properties.

This page displays the current ionogram and tries to determine the nearest digisonde report to your location. Data coming from this sondes are used to determine the MUF for oblique propagation on HF spectrum