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Troposcatter, 50 MHz meteor scatter, ground gain for eme, radiation angle, by OZ1RH

An home made HF mobile multiband antenna inspired by the KM4IE HF 20 dollars antenna or the Texas Bugcatcher can work 75 to 15 meters band with an acceptable SWR.

Technical resource and information on improving ft1000 receiver performance

McMinn County Amateur Radio Club, Inc. (MCARC) Club Callsign KF4CFO.

Kingston Amateur Radio Club Articles Dave Lawrence, VA3ORP

Concentrating on VHF DX, Aurora, Meteorscatter, TEP, Sporadic E, EME, VHF DXpeditions. Daily updates.

W1GHZ Palm Software, special-purpose contest logging program for the ARRL 10GHz Cumulative Contest.

CB Club north greece established in 1982

A fully equipped amateur radio mobile radio shack by VE6AB

The Northern Alberta Radio Club serves Edmonton, Alberta and area.

A led electroluminescent radio receiver

Supplying over 2000 different vacuum tube types, valves, grid caps, sockets and capacitors. It is easy for Antique collectors, Ham radio operators, audio enthusiasts, broadcast enthusiasts and amateur radio hobbyists to buy, sell and trade vacuum tubes, electron tubes, audio tubes, valves, grid caps, sockets and capacitors

The ATV User's Group is a subgroup of the Auckland VHF Group, Club call ZL1BQ, compromising of persons interested in the transmission and reception of Amateur Television

Here are 10 tips and truisms that every ham should know about antennas, by W20QI

Ham satellites, 50 MHz, my hobbies, links.

This resource presents a domain name for sale, specifically _Kl7aa.com_, for $995, with an option for a 24-month payment plan at $41.46 per month. The page details the purchasing process, including immediate domain access, zero percent financing, and secure shopping. It also outlines the transfer process to other registrars like _GoDaddy_, clarifies what is included with the domain purchase (only the domain name, not hosting or web design), and explains how to maintain WhoIs privacy protection. The content includes testimonials from buyers like Dann Berg and Greg Shepard, highlighting smooth transactions and quick domain delivery. It also provides information on HugeDomains' 30-day money-back guarantee and frequently asked questions regarding domain transfers, access post-purchase, and payment plans. The page emphasizes the importance of a web address and lists other similar domains for sale, such as _Kl35.com_, alongside quick stats about the domain's length and structure.

Building the MFJ Cub QRP transceiver kit for 20 meters band by G4ILO

N9TEW is supplier of vacuum tubes for ham,audio & antique radio purposes.

Radios, Antennas & More dealer from Texas USA

The past and future of the Sun's solar cycle and possible impact on the Earth's climate.

Home page of the first hamradio club created in Northen Greece.

Xenia, Ohio Ham radio club, formed because of the Tornado of 1974.

CQ Milano, the dx NewsLetter edited by Sezione A.R.I. Milano.

Irish ham and Vhf radio info. Logs and maps worked, no excuses, this is mainly a VHF site

We are the premier Amateur Radio Club in the Edinburgh area, since our formation in 1984 we have done much to raise the profile of our hobby in the area.

FM & SWL, broadcasting, media, FMDX,frequency lists, ham adio

Do you want to measure antenna impedance at resonance? With this Antenna Scope, you have a simple RF Bridge for getting started in an exciting part of Ham Radio, building your own Antennas that work well

Nifty E-Z Guide to EchoLink Operation A comprehensive guide for installing and operating EchoLink.

Find out about the latest launch and mission to the Mir Space Station or Shuttle now consolidated in a single web site

The Patch Antenna Array was constructed and used for various satellite up and down links at my previous residence in Melbourne, Victoria from 2003 - 2007

The WaveNode WN-1 is a precision, full-featured Amateur Radio Station Monitoring System which now includes Audio Announcing for RF power, SWR, and DC monitoring using HF and UHF remote sensors.

Windows based programmer for the VX-170. Programming software for the yaesu VX-170

German DOK award program management windows software by IK6CAC

The project is an AVR ATMega328P based AX-25 1200 AFSK Digital Repeater, suitable for APRS digipeating

**LDG Z100** automatic tuner repair focuses on toroid replacement and troubleshooting. The guide provides detailed steps for diagnosing and fixing common issues with the toroid, which is crucial for the tuner's performance. It includes specific instructions on disassembling the unit, identifying faulty components, and sourcing replacements. The document is technical, requiring familiarity with electronic components and soldering techniques. It emphasizes the importance of using the correct toroid specifications to ensure optimal functionality. Successful repair of the **LDG Z100** ATU restores its ability to match a wide range of antennas, enhancing transmission efficiency. The guide compares the performance before and after the repair, highlighting improvements in SWR readings and overall reliability. Practical application of this repair extends the life of the tuner, making it a cost-effective solution for amateur radio operators. The document serves as a reference for similar repairs on other models, providing insights into common issues and solutions. It is a valuable resource for those looking to maintain their equipment without resorting to professional services.

As used on the new GB3VHF 144.43MHz Beacon

Quarter wave groundplane antenna for 2 meters FM by AA1PG

Specialize in engineering, design and repair of all rf equipment. Dealer for two way radios, scanners, shortwave radios, wi-fi antennas, wifi amplifiers. Based in Fortuna, California.

Tencom, located near Toledo, Ohio is dedicated to the pultrusion of fiberglass composite products. This includes solid rods, conductor rods, tubes and a variety of custom profiles.

The practice of converting computer server power supplies to make a very high quality high power supply at low cost is attractive. It doesn't normally require any modification to the supply but the hard part is figuring out how to trick them into turning on.

Full line metal service and retail center, stocking the largest variety of metals in Southern California and Arizona.

Shareware windows program to manage IOTA contacts and IOTA awards by IK6CAC

ITELITE manufactures omnidirectional, sector and directional antennas 900 MHz 2.4 GHz 3.5 GHz 5 GHz 5.8 GHz antennas.

The K-Com website, originally intended for RFI rejection products, currently hosts content for a Nigerian football betting platform. The site promotes wagering on live EPL, NPFL, and UCL matches, offering competitive odds and instant OPay and bank payouts. It highlights features such as a **99 sign-up bonus** for new players, daily deposit rewards, and VIP cashback, alongside a mobile-friendly interface and NLRC licensing. The platform provides a demo hall with _1,000,000 demo credits_ for guest players to test strategies without registration. It emphasizes secure and reliable gameplay, instant withdrawals, and multi-game access, claiming over 100,000 active players. The content includes user testimonials and an FAQ section addressing game access, registration, promotions, and mobile compatibility, but contains no information related to amateur radio or RFI filters.

KP4AE webpages with photos and information about SSTV, from puerto rico.

The KX3 Companion in an app that will let the power use of your Elecraft KX3 HF radio easier and lighter. No need for a PC! It will let you send and receive CW, PSK31 and RTTY by using your mobile phone or tablet keyboard. Optionally you can use an external Bluetooth keyboard connected to your Android device.

How to receive JT-65 signals using a cheap RTL-SDR dongle with the 820T2 tuner chip

CMSK is a narrow-band weak signal digital mode for LF and MF ham radio bands defined by ZL2AFP. CMSK63 is the windows client program.

Great Circle Map for Linux, available for Debian, freeware by SM3GSJ

In the VLF portion of the spectrum it is easy to listen to the emissions created by the Earth itself. These emissions are generated by many different mechanisms and are often beautiful to listen to. Coverage on LF and MF frequencies