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High Performance Communications Receiver AKA, The Progressive Receiver

Operating NVIS mode, understanding operation frequencies, choosing the proper antenna to operate with the Near Vertical Incidence Skywave propagation

A group of Treasure Valley Hams have formed a group that is interested in experimenting with ballooning and using Amateur Radio and APRS to further our knowledge in communications.

Capri island EU 31 iota referens

Bruce K1XR Collins Radio Collection pages

G3CWI contest software reviews, compare NA SD TR CT and WriteLog

A collection of projects and equiment home made for 24 GHz operations

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.

Beacon website of WE4S, Grady Donaldson, located in McDonough, GA. EM73TM.

EA5FSC Home page.

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

ARI Fano marconi CW contest

W4RAT based in the Virginia capitol city of Richmond.

An online multiple calculator of 16 impedance matching networks

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

Ham Radio Page, Links, Sport, Motor-cycling

The IK7IMP personal page provides details on the _Ham Portal_ software, an Italian-language application designed for managing amateur radio websites, including an online logbook feature. The resource also mentions the development of a J-pole antenna project, indicating a focus on practical radio construction and design. Content on the site covers general amateur radio topics, with specific mentions of equipment from manufacturers like Yaesu, Icom, and Kenwood, alongside antenna brands such as KLM and Tonna. The page serves as a hub for Icilio Carlino's amateur radio activities, offering insights into his interests in DXing, contesting (CW), and general radio operation. It also includes information relevant to the local amateur radio community in Lecce and Salento, Italy, referencing the Associazione Italiana Radioamatori (ARI) and the IQ7AF project.

How new technologies affect the art of contesting by DH1TW

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

Map of Argentina Locators

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

ic8cqf member to puparu radio club

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

SV2BXC Personal Amateur radio Web Page

Ham radio club in Bryan Texas

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.

EU-EW HAM radio regions map by ew2eo

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!

This resource indicates that the specific page detailing the RockMite QRPp Rig CW transceiver project, previously hosted by WY3A on QSL.net, is currently inaccessible. The QSL.net platform, which provides free web hosting services to over 30,000 amateur radio operators and organizations, confirms the file or page no longer exists. Users are advised to attempt direct contact with the website owner or utilize an internet search to locate the content. The platform's error message clarifies that QSL.net support cannot assist in finding individual missing pages due to the decentralized maintenance of its numerous hosted sites. It encourages reporting any missing files related to the QSL.net main site itself. Donations are encouraged to support the free email and web services provided to the amateur radio community.

The real social network for ham radio operators. Das wahre soziale Netzwerk fur Funkamateure. SocialHams is a ham radio related social network with featuring several different services like forums, video galleries, profiles all in a vertical social network.

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

Ham radio in Steyr Austria

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.

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

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.

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

Turkish bulgarian contest team

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

Amateur radio contesting website - the motueka contest club zl1v

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

Tuned circuits for Progressive Receivers

Reviews of the Kenwood TL-922A Power amplifier

LA3ZA Unofficial Guide to Elecraft K2 Modifications

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

Sole manufacturer of the Jacobs Wind Systems

The Eastman Amateur Radio Club (VE4TG) operates a **VHF repeater** at 146.73 MHz and a **UHF repeater** at 444.15 MHz, both located at the Manitoba Hydro gas-fired generating station near Selkirk. These repeaters are situated on the power plant roof, leveraging its infrastructure for antenna placement. The club's primary objective is to offer a reliable local repeater site for members in the East Selkirk and Lockport areas, ensuring consistent amateur radio access. Beyond routine communication, the club maintains a standby communications link to assist local municipal authorities during emergencies requiring communications support. The unique repeater site location at a generating station provides a robust backup power supply, enhancing reliability. The club also organizes activities such as a weekly net and participates in WARC Field Day, fostering community engagement and operational readiness.

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