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CAT5 T-568B Colour Code for RJ-45 Plug

The 2000 CQ WW Multi-Multi operation by the GM0B contest group from Benbecula, Outer Hebrides, Scotland, is documented, providing insights into a significant **DX contest** effort. This resource outlines the station setup, operational strategies, and team composition for a large-scale, multi-operator, multi-transmitter entry. It details the logistical challenges and technical solutions employed to achieve competitive results from a remote island location, a common scenario for **DXpedition**-style contest operations. The page offers a glimpse into the practical application of contest rules and the coordination required for a successful multi-operator effort. It serves as a historical record of the GM0B team's performance in a major international contest, allowing other contesters to compare operational approaches and understand the scale of such an undertaking. The information can be useful for those planning similar contest expeditions or studying past contest strategies.

Pioneer supplier in the radio parts field, and electronic components, alternative power products, kits, test equipment and computer components.

Project for DXers and experimenters alike. An old article publishes by 73 Amateur Radio magazine in PDF format, where all the components required to build your own HF spectrum analyzer may be found in a well-stocked junk box.

An updated calendar schedule of spy numbers stations in english, german, slavic, morse and digital mode

Coordinamento del radioascolto``Official website, in italian

Ham Manuals for sale

Here is a simple, self-contained beacon which can run a few milliwatts or as much as a watt depending on choice of amplifier and supply voltage.

WSJT manuals and user guides in many languages. Most of these manuals are outdated and refers to legacy versions.

Article by N6LF on a top band vertical antenna array system

Amateur radio links providing information sources for DX, QSL, Clubs, etc.

A site dedicated to the Yaesu FT-817 and FT-817nd, The great little transceiver made by Yaesu. A web site full of FT-817 videos and articles

Antennas, Standard Delay Line Systems, Crossfire Phasing or Hybrids

US coast guard frequency list

A group to discuss the Yaesu VX-2R handheld managed by N2ZZ

Improve the stability of your Yaesu G-250 rotator.

Alltronics was founded in july 1978 and is in the business of selling and buying electronic components and equipment.

The Big Time Operators CB club based in muncie Indiana USA

CAT (Computer Aided Tuning) connects computers with ham radio. Yaesu FT-890 intercace and ICOM IC-Q7 schematics by DK7IN

Activities, meetings and more

Amateur Radio - Antenna Zoning Book by Fred Hopengarten Telecommunications Lawyer

You can now build and run your own ADS-B ground station that can be installed anywhere and receive real-time data directly from airplanes on your computer

Guest house with acomodation for 3 more people in Uruguay

Packet radio applications by Luis Fdo. y Jose Carlos Ramirez, EB7CJO in Spanish

ECONCO has been rebuilding vacuum tubes for more than 30 years. Our commitment to quality, and concern for the environment has won us the acclaim of clients worldwide.

A morse keyer project made on Arduino, inlcudes the main program script by m0xpd

Win EA6DDlog is a freeware logging application for Windows, developed by EA6DD Biel. It integrates features from existing software like Swislog, Urelib, Logger, and HamRadio Deluxe, presenting a Multi-Document Interface (MDI) similar to Logger. The program prioritizes simplicity, practicality, and operational speed, allowing functionality even on less powerful PCs. It does not require a formal installation; users can run it directly from a portable drive or any directory. This logging utility supports CAT control through Omnirig by Alex Shovkoplyas, VE3NEA, which is automatically installed if not already present on the system. It also offers QSL printing capabilities and connections to online callbook services such as QRZ and HamQTH for contact information. EA6DDlog includes an automatic update mechanism that checks for new versions upon startup, requiring internet access. For Windows Vista users, disabling User Account Control (UAC) is recommended for proper update functionality. The software is part of a broader development effort aiming for cross-platform compatibility, with future versions planned for Windows Mobile, Linux, and macOS.

Kenwood TS-480HX Resources at eham.net

Radio Frequency Interference To/From touch lamps and dimmers

PE1OPM review the yaesu FT-897

An inexpensive rechargeable CMOS battery system that can be built from readily available parts.

Review of Cushcraft MA-5B multiband Antenna after some days of usage.

If you want to build a cw decoder without using other active components than an atmel 328 - Arduino UNO , then this is sure something for you.

The following table is adapted from the International Telecommunications Union Radio Regulations Appendix 18, including changes adopted by the 2012 World Radio Conference.

SDR-Radio.com is a Windows console for Software Defined Radio (SDR) receivers and transceivers. Designed for the commercial, government, amateur radio and short-wave listener communities, the software provides a powerful interface for all SDR users

Design of a 40 meter Vertical antenna

W5DDL, Acadiana Amateur Radio Association, located in beautiful Lafayette, Louisiana.

The Hualapai Amateur Radio Club is located in Kingman, Mohave County, Arizona, USA (DM25xf).

Ham Radio ITU International Callsign Country Prefixes

Schematic diagram and description of a magnetic loop antenna that works from 10 to 20 meters band, made from junk

Building a Windom HF Antenna. A PDF file presentation about homebrewing a windom antenna for the HF bands with formulas for 40 and 80 meters bands and step by step guide on making a 4:1 balun to feed the antenna.

An antique radio collection

How to operate Instant Tune and Instant Track or DOS Programs on a last generation computer in french and english by ON6WG F5VIF

Island DXpedition and portable operations, including present, up-and-coming operations, IOTA, NON-IOTA, IOSA, IIA, ILIA, DIB, Lighthouse, and other Island Award Program operations

Get familiar with the basic operating procedures for using the JT65 mode of HF digital communications, a 35 pages PDF file.

German pirate radio station

Personal SWL log with various information from SWL tips and tricks to Frequecy Logs to general SWL information.

Linear Amp UK specializes in the design and production of high-quality linear amplifiers, offering models for HF, VHF, and UHF amateur and commercial applications. The company emphasizes nearly 30 years of experience in crafting each unit, ensuring robust performance and longevity. Their product line includes amplifiers engineered for a 100% duty cycle, promoting continuous and reliable operation across various modes. The amplifiers feature solid, dependable designs, ensuring quiet and effortless performance during transmission. Each unit is hand-built to stringent standards, reflecting a commitment to durability and operational stability. All products are CE approved, confirming compliance with European safety and environmental directives, and come with a standard two-year warranty, providing assurance to operators. Key specifications often include coverage for 1.8-30MHz (WARC bands), 50MHz, 70MHz, and 144MHz, utilizing tubes such as 811, 572, 811A, 572B, GS35, GS35B, 8877, 3CX1500, and _3CX1500A7_ in their designs.

Mac the Scope is a professional quality signal analyzer, 1/3 octave RTA, signal generator, and more.

Improving measurement accuracy when low-power analyzers are used.