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A collection of calculators, contest schedules, references, databases and more for Palm OS by KB7AVT

SFHRC - San Francisco Ham Radio Club, formed December 1,1998, to conduct activities to advance the general interest and welfare of Ham Radio in San Francisco and neighboring communities of the Bay Area.

Studio DX, italian DX radio magazine

Some Clegg 22'er radio pictures

A club for hams who are also regulars on IRC (Internet Relay Chat).

LinLogBook is an logbook for hamradio and it is based on an sql database. It can be widely configured by the user.

This is about Small Antenna types and their properties which can help choosing proper antenna for high-frequency wireless communications as: two-way radio, microwave short links, repeaters, radio beacons or wireless telemetry

Web Site of Ukrainian Club Amateur Radio station from Vernadsky Research Station on Galindez island EM1U

Broadcasts Bible teachings in 15 languages to all world regions on local media such as mediumwave, TV and FM, via international shortwave radio and Internet radio and TV.

WorkedFields is a windows free software to displays a map showing the amateur radio field squares contacted and logged in using a third-party logging program.

A group of American amateur radio operators who are living in Germany and come together to participate in amateur radio activities

IMO was created in response to an ever growing need for international cooperation of meteor amateur work. Radio Observations.

The Nederlandse Vereniging voor Radio Amateurs (NVRA) operates from Haarlem, Netherlands, under the club callsign PI4HLM and maintains an ATV repeater, PI6HLM. The organization's website provides updates on internal governance, such as the postponement of a General Members Meeting due to necessary amendments to its 1986 statutes. These amendments are required to comply with the Wet Bestuur en Toezicht Rechtspersonen (WBTR) — Dutch legislation concerning the governance and supervision of legal entities. The NVRA's operational focus includes local amateur radio activities, indicated by its Haarlem location and the presence of a **PI6HLM** ATV repeater. The club's adherence to national legal frameworks for non-profit organizations, specifically the **WBTR**, demonstrates its structured approach to club management and long-term viability within the Dutch amateur radio community.

There are several reasons that can cause coax line radiation, most of them are related to wrong or missing use of a balun, but none can be imputed to load mismatch.

Piedmont NC ham radio and scanner information.

Demonstrates a specialized **DX cluster** designed to support the annual Jamboree On The Air (JOTA) event, facilitating real-time spotting for participating Scout stations. While its web interface has been discontinued due to security concerns, the cluster remains fully operational and accessible through standard cluster software. Operators can connect to the JOTA cluster by pointing their client to www.pi4raz.nl on port 7300. This setup allows for the exchange of **DX spots** and other operational information relevant to JOTA participants, ensuring that Scouts and their amateur radio mentors can continue to make contacts and log stations during the event.

Searchable database of amateur repeaters and broadcast transmitters. The database covers the fifty U.S. states, the District of Columbia, and the ten Canadian provinces.

Women Radio Operators of New England was established in 1955. WRONE is an amateur radio club for female radio operators living in the six New England states

xperience 3 YLs having a 2 Meter QSO

Radio Filters manufactures low price fm notch filters.

The RVARC is a Fredericksburg, VA area 56 year affiliated club with the American Radio Relay League, ARRL.

Liga Colombiana de Radioaficionados

The Mobile-Portable Reflector serves as a dedicated discussion platform for amateur radio operators interested in mobile and portable operations. It facilitates the exchange of information and answers questions specifically related to operating amateur radio from vehicles, temporary field locations, or while walking. The platform is not intended for general amateur radio discussions; its scope is strictly limited to mobile-portable topics. Subscribers can access prior postings to review historical conversations and solutions. The list is administered by _dick at k7vc.com_ and operates on Mailman version _2.1.12_. Subscription requires email confirmation and offers optional privacy password protection, with an option to receive daily batched emails.

The radio voice of Canada broadcasts daily programs in French, English, Spanish, Arabic, Chinese, Russian and Ukrainian, on shortwaves, satellite and via RealAudio.

The _ISS Detector_ Android application, with over 5 million downloads, offers precise predictions for visible passes of the International Space Station. It notifies users minutes before an overhead pass, integrating local weather conditions to ensure optimal viewing opportunities. The core functionality focuses on the ISS, but in-app purchases extend its capabilities to track other celestial and artificial objects. Optional extensions, available via in-app purchase, allow users to monitor dozens of amateur radio and weather satellites, providing real-time transmitter information and Doppler frequencies. Additional extensions cover _Starlink_ satellites, the _Hubble Space Telescope_, rocket stages, bright satellites, comets, and planets, expanding the scope beyond the ISS to a broader range of observable space phenomena. The app's interface is designed for ease of use, displaying pass times, directions, and elevation. It adapts predictions based on the user's GPS location, ensuring accurate local forecasts. The latest update, dated April 3, 2026, includes corrections for magnitude values and various speed and stability optimizations.

SCCARA was formed as a general interest amateur radio club in 1921 and became a non-profit corporation in 1947.

Ham radio, Mir contact samples in Real audio, packet and some links

Nightly Talk Around Net sparked many new ideals and has promoted Amateur Radio in our area with things like, ARES, Skywarn Classes, Field Day, VE testing, Internet and other events that bring our Hams together as one big family.

Amateur Radio Station M3PHP, Peter Goodhall.

HFpack provides an information exchange about transceivers, antennas, systems, HF packs, propagation, new developments and techniques in HF portable operation. Radio Amateurs are invited to participate in egroup and on-the-air nets around the world.

The only worldwide amateur radio repeater directory. Supports Android, iPhone, web, RT Systems, CHIRP GPS enabled. AvMap, Garmin, TomTom

SARA is a volunteer club dedicated to furthering the advancements of Amateur Radio

Home page of PA3BTL with information on Linux, packet radio, sattellite keppler data links, Proxim RangeLAN2 2.4 GHz radio's, Lucent WaveLAN 2.4 GHz radio's and link to LXE homepage

Welcome to the relay repeater club. we are a 2 meter/vhf amateur (ham) radio club in arcadia, california, operating on the ka6ncr repeater. we are looking for new members.

Short description of the olivia mfsk mode and explanation of how to use olivia mode and proper radio setup including recommended olivia frequencies

Approximately 2.8% annual decline in Australian amateur radio licenses was observed over the five years leading up to 2002, a trend that prompted further analysis of the country's amateur population. This resource examines licensing statistics and demographic shifts within the Australian amateur radio community between 1998 and 2007, utilizing available data to identify patterns in license issuance and renewal. The study focuses on **population trends** and the underlying factors contributing to changes in the number of active **amateur radio operators**. It provides insights into the health and growth trajectory of the hobby in Australia during this specific period. Understanding these demographic shifts is crucial for clubs, regulatory bodies, and equipment manufacturers to adapt strategies and foster engagement.

A Bluetooth Headset Interface with built-in PTT for Amateur Radio by Bertrand Zauhar, VE2ZAZ

CAARA, an ARRL affiliated club, operates the 2 meter W1GLO repeater on 145.130 MHz

a Podcast for amateur radio enthusiasts... by jeff davis, ke9v

Amateur radio, photos, and links

A simple charger designed for charging 12 V sealed lead acid batteries, used by radio amateurs for portable operation Amp-Hr Class used by radio amateurs for portable/emergency operation.

Presents the **BayCom** packet radio system, detailing both its hardware and software components specifically designed for amateur radio use. The resource offers insights into the technical specifications and operational aspects of the BayCom modem, which has been a staple for many German packet radio enthusiasts. It covers the integration of these components within a typical amateur radio station setup, enabling reliable digital communication. Further, the site provides a broader context by including general information about the German packet radio network. This encompasses network topology, operational protocols, and historical developments relevant to packet radio in the region. Users can find details on how to connect to and utilize the existing infrastructure, fostering participation in the local digital amateur radio community.

Radio for Peace International (RFPI) is a Global Community Radio Station located in Costa Rica, Central America that broadcasts progressive news on shortwave radio and the internet on topics of Peace, Human Rights and the Environment. RFPI gives a voice to the voiceless by promoting democratic communication.

Pagina personal de Radioaficion, Satelites, Antenas, Electronica y Aviacion

Wrexham is in North Wale's and our club is open to all radio fans

Local radio club for Harlow in Essex, England

Presents the Scranton Pocono Amateur Radio Club (SPARK), K3CSG, highlighting its status as one of Pennsylvania's most senior ARRL-affiliated clubs. The club, also known as the Abington Amateur Radio Club, maintains a consistent presence in the local amateur radio community. It provides a platform for radio enthusiasts to engage in various aspects of the hobby, including operating events and technical discussions. The resource details the club's historical background and its ongoing commitment to fostering amateur radio interest and skill development among its members. The club's activities often encompass participation in field days, local nets, and support for emergency communications. Members frequently operate on HF and VHF/UHF bands, utilizing various modes for local and DX contacts. The club's callsign, K3CSG, is regularly active during club events and contests, representing its collective efforts in amateur radio.

Superstition Amateur Radio Club: Ham Radio events and activities of the Superstition ARC include promotion of amateur radio amongst the public via licensing classes and radio communication demonstrations, on-air nets and discussion, and the December Hamfest in Mesa, Arizona

Operating as a local amateur radio club, the Wireless Association of South Hills (WASH) provides a community hub for hams in the Pittsburgh, PA area, identified by the N3SH callsign. The club engages in a range of activities including the Annual Field Day, the PA QSO Party, and a 2 Meter Contest, fostering participation in various aspects of the hobby. WASH also supports local ARES/RACES efforts, highlighting the critical role of amateur radio in emergency communications during disasters, and facilitates ARRL/VEC exam sessions for new licensees. Beyond contests and emergency preparedness, WASH hosts club picnics and an annual hamfest, promoting social interaction among members. The club maintains VHF/UHF repeaters, which are essential for local communication and extending range for members. Regular activities include a Monday evening WASH NET at 8:00 PM, providing a consistent on-air gathering point. The club's focus on both recreational and public service aspects of amateur radio, from making new friends to providing vital disaster communications, underscores its comprehensive approach to the hobby.

Sharing the stories of Pacific radio, an on-line archive and resource. Includes searchable databases, articles, images, store, newsletter, research, advocacy, publishing, radio heritage documentary production and more. Free membership worldwide.