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Collection of real time solar data by CT1BOH

North Bay Amateur Radio Association (NBARA), operates in Vallejo, California, at the northern tip of San Francisco Bay.

This site is dedicated to co-ordinating the APRS activities in Ottawa, Ontario, Canada and the surrounding region.

K3WWP QSLing page. QSLing information and resources.

Managed by BARC Award Committee

Samples and documentation on RDF setups

The Tri-pole antenna, a clever modification of a standard dipole, allows for dual-band operation by integrating a third element. This design effectively shortens the overall dipole length by 10 to 20 percent, simplifying antenna rotation and offering a compact footprint. KK4OBI's article delves into the operational principles, using a 6 and 10-meter Tri-pole as a primary example, and provides comprehensive instructions for constructing any Tri-pole antenna within the 6 to 15-meter range. Key to the Tri-pole's performance is its off-center feed, necessitating a common mode choke at the feed point for optimal tuning and reduced noise. The author outlines a methodical approach to determining element dimensions, starting with a vertical element frequency calculated as 0.47 times the sum of the desired upper and lower band frequencies. This calculation, along with K-values derived from trend lines, guides the initial lengths for the horizontal arms, demonstrating how a 10m-6m Tri-pole can achieve a total horizontal length 78% shorter than a conventional 10-meter dipole. Tuning and balancing are critical, with the article detailing adjustments to arm lengths and the vertical element to achieve balanced SWR values, as validated through 4NEC2 simulations. Radiation patterns are analyzed at various elevations, showing gains around 5.7 dBi and favorable take-off angles for DX contacts. Construction details specify aluminum tubing dimensions, U-bolts, and an SO-239 connector, emphasizing the importance of a ferrite-based choke for wideband operation.

Successful two way contacts were made on 75976.2 MHz covering a distance of 79.6km and in years later 129 Km

The Manahawkin Repeater since 1975

Chronicles the operational history of Cullercoats Radio, established in 1906 under _Marconi_ license, detailing its initial use of a spark-gap transmitter feeding a **200-foot** wooden mast. Documents the station's transition in 1915 to Marconi Wireless and a 1929 upgrade to a valve-type transmitter. Explains its later role as a British Telecom (BT) Maritime Radio Station, callsign GCC, serving as a receiving site with transmitting aerials at Hartley. Highlights the demolition of the commercial mast in 2000 and the site's subsequent sale. Features the Tynemouth Radio Club (GX0NWM) operating special event stations like GB4MPC for International Marconi Day from Marconi Point. Includes a historical QSL card confirming a QSO on **7.016 MHz** in 1936.

Ham radio club located in Marbleton Wyoming

The ARA provides communications services to the area through its network of repeaters at the club site near Freeland PA

DX Award from Switzerland

Accessible Equipment Manuals, Useful Operating Tips and Techniques and Contesting for the Blind by NU7I

Pictures and description of a multiband HF mobile setup by N4AIT

K2 Project by G3VGR, installation and modification

Located in Eton, GA tx on 28.238 Mhz

The ICOM IC-7600 is an improved version of the IC-756 Pro and Pro II review by N9EWO

RST amateur radio club in Brazil

The ZS1J/B beacon operates on 28.2025 MHz with 5 Watts output to a half-wave, end-fed vertical antenna, initially installed in 1977 as ZS5VHF near Durban. The 10-meter transmitter is a modified 23-channel CB radio, and the identification keyer uses a diode matrix unit with TTL ICs from the same era. After relocation to Plettenberg Bay in 1993, the beacon has been in continuous service, with additional QRP transmitters later installed for other bands. In 1994, a single-transistor, 80-meter, 0.5-watt QRP transmitter with a half-wave dipole was added on 3586 kHz, followed by a 160-meter, 0.5-watt unit on 1817 kHz. A 30-meter, 0.5-watt transmitter was installed in 1996, operating on 10.124 MHz. In 2002, a 40-meter QRRP beacon on 7029 kHz, with an output of 100 microwatts, achieved DX reports up to 1100 km from ZS6UT in Pretoria. Best DX reports for the 80m and 160m beacons came from 9J2BO.

small but dedicated group of radio operators who primarily operate on a simplex on a frequency of 147.435

Proper postal addressing ensures quick and efficient handling of your QSL

Beacon project by n8lgl Paul

Bi-Directional 2.4 GHz One Watt Amplifier With Receive Pre-Amplifier. This will show you how to add a bi-directional, 2.4 GHz amplifier to your Proxim Symphony for under $100

Western Canada YL amateur radio club

Fox Controller, designed by VE2JX and VE2EMM includes schematic diagram to build the transmitter.

This freeware application for Linux and windows, allows you to convert an ADIF file to a KML file so you can map your QSOs easily and open it with google maps, or google earth or any application supporting the KML format

SAARA is an association of radio amateurs organized for the promotion of Amateur Radio communication and experimentation. We provide communications during disasters, emergencies and community events

Indonesian Awards

The new and current web presence of the Kings County Radio Club, in Brooklyn New York

What do Hams do? by Victor Amateur Radio Association

Worked All Canadian Provinces Lighthouse Award

In collaboration with Croatian Amateur Radio Association

TyQSL provides a web-based online logbook platform, enabling users to manage all QSOs from any device with features like fast ADIF import, supporting up to **100,000 QSOs** per file. The platform facilitates real-time uploads to services such as _Clublog_ and _eQSL_, either automatically or with a single click, ensuring logs are current across multiple platforms. Operators can manage multiple callsigns and create various logbooks within a single account, allowing for flexible QSO organization. The integrated logger features a streamlined layout with live DXCC checking, duplicate QSO alerts, and autofill for satellite operations. It also supports one-click logging from _WSJT-X_. Users can share public profiles, displaying QSO statistics and searchable logbooks, enhancing community interaction. A PRO account offers additional features like an interactive QSO map, showing worked grids and future activities of other users.

The Egyptian Radio Amateurs Society

An ARRL-affiliated Amateur Radio Club located near McKinney, TX

The Great Lakes DX / Contest Club is located in the central part of Michigan near the city of Lansing which is the state capitol. The club's main purpose is to support and encourage the DX aspect of the amateur radio hobby.

The CQ Contest & DX Group, main activities is - participating in contests. Mainly in the Nordic Activity Contest at the 50 MHz, 144 MHz and 432 MHz, though the group holds a full licence, have we not participated in a HF contest yet.

A close up of Doppler Shift, a phenomenon which is commonly observed by the lay person, yet still confuses many amateur satellite operators.

On 28.219 Mhz it puts out a whopping 3.85 watts into an inverted V dipole at about 30 ft.

New Zealand Women Amateur Radio Operators, to promote and encourage interest in amateur radio amongst women.

RZ9MYL - the most active YL-clubstation in the world

A calibration kit useful when you need known reference impedances to properly calibrate your vector network analyzers.

Some pictures of Ham Radio Lightouses Awards