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Official web site for the ILLW event. Maintained by vk2ce.

Bruce K1XR Collins Radio Collection pages

ARI Fano marconi CW contest

A DIY aluminium push up mast project. The final mast includes 7 aluminium tubes with 6 cable clamps

EA5FSC Home page.

W4RAT based in the Virginia capitol city of Richmond.

An online multiple calculator of 16 impedance matching networks

How new technologies affect the art of contesting by DH1TW

PCB for a battery charger described in the datasheet for the MAX712/MAX713 fast charge controllers.

The next generation beacon platform for the OZ7IGY beacons should encompass both the analog and digital mode, i.e. FSK and MGM in a mixed mode configuration

Demonstrates the construction of a high-power 6-meter (50 MHz) amplifier, specifically designed for demanding modes like EME, TEP, and multiskip Es. It details the use of a _GU-43B_ tetrode in a grounded-cathode configuration, emphasizing the need for stabilized grid voltage and input capacitance compensation. The resource provides a comprehensive schematic, power supply design, and practical considerations for component sourcing, particularly for high-voltage and high-current sections. The builder achieved an output power of **1250 watts** with an anode current of 0.65 amperes and 3200 volts anode voltage. The article also covers the physical construction within a modified P6-31 enclosure, outlining the internal layout for RF and power supply sections, and includes photos of the completed unit. It highlights critical safety precautions for working with high voltages and reactive currents up to **20 Amperes** in the P-network.

Based in Williamsport PA

Ham Radio Page, Links, Sport, Motor-cycling

IK7IMP tech infos, qsl and news about Lecce and Salento Italy

Map of Argentina Locators

ic8cqf member to puparu radio club

Contest Club Ontario (CCO) is Ontario's entry into International Club competitions in the 21st Century, providing one vehicle to highlight Canadian participation in these contests.

How to convert the ICOM VHD base station IC-275D to 275H 100W 144-148Mhz

A multi band antenna for HF band capable to operate from 10 to 80 meters band depending on wire lenght loaded with a small inductance neat the feed end.

SV2BXC Personal Amateur radio Web Page

The contest takes place the first full weekend of May (from 1800Z on Saturday May 5 to 0400Z Sunday May 6, and from 1100Z to 2100Z Sunday May 6). A total of 20 hours contesting!

The QSL Managers Society is a platform where quality QSL managers come together to pool their resources and offer their services to DX and DXpeditions seeking a reliable QSL manager. Membership requirements include a commitment to the 'QSL Manager's Creed'. If you are a QSL manager or aspiring to become one, you can join the society by agreeing to the creed. The society is based in Tuckerton, NJ, USA, and aims to connect QSL managers with those in need of their services in the amateur radio community.

SWL RockMite 40 CW Transceiver Built by WY3A

Amateur radio contesting website - the motueka contest club zl1v

EU-EW HAM radio regions map by ew2eo

Ham radio club in Bryan Texas

This calculator ask as input diameter, lenght turn and frequencu and will return L and Q

Turkish bulgarian contest team

The equipment shown on this page comprises a basic G3WDG transmit and receive system with the addition of a 1W Qualcomm amplifier.

A netlist converter for moving schematic and PC board files from OrCAD/PADS to ExpressPCB format.

Ham radio in Steyr Austria

Tuned circuits for Progressive Receivers

New Zealand, the information has been taken from the New Zealand Call Book, published annually by NZART

Stamford Amateur Radio Association Repeater Club. Located in Stamford, Connecticut.

Sole manufacturer of the Jacobs Wind Systems

A homebrew radio transmitter project, based and inspired by the original 30 Watts input on 80 50 and 15 meters band transmitter by W11CP

LA3ZA Unofficial Guide to Elecraft K2 Modifications

The CNCG is a group of contesters and DXers from Oregon and Washington who travel to various locales to participate in amateur contests

Homemade RF limiter project, to protect the K3 receiver front-end for high radiofrequency based on the original KD9SV project.

The Saratoga Amateur Radio Association provides emergency communications for the City of Saratoga, and promotes amateur radio in the community.

Selecting capacitors in RF power applications at HF by I0JX

Home of the repeater with the world's largest backup power supply

This generator requires 100volts supply at 5mA. A 0 -5 mA meter inserted at J1 measures the crystal current.

Callsigns P4 stations including Aruba residents and visitors

Ellensburg, Kittitas County, Washington, USA

A basic multimeter project with full schematic diagram by G3PTO

Iambic and Straight key amateur ham radio CW Morse code practice oscillators for Android. This Android app gives you both straight and iambic CW Morse code practice key oscillators. Each key translates Morse code into English and CW prosigns in real time as you practice. Practice sending Morse code with a straight key oscillator. Settings include WPM, show/hide Morse code/text, choose sidetone 400Hz-800Hz. Adjust the WPM so that you can produce well formed DITs and DAHs at a comfortable speed.