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Delta 160-meter receiving antenna used at FO0AAA -
This calculator is designed to give the vertical length of a quarter-wave ground plane antenna, and the length of each of the four radials for the selected frequency you have entered -
Baluns are still a mystery to some radio amateurs and the only way to understand them is to learn what they are and how to use them. -
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Benefits in implementing a remote antenna switching system and a sample remote antenna switch project -
GQRX is a free and simple to use SDR receiver which runs on Linux and MacOS X. GQRX comes with a standard FFT spectrum and waterfall display and a number of common filter settings -
Custom Design T-Shirt with No Minimum order (you can buy just 1) and NO Setup Fee. Will transfer your Favorite Images from JPEG's and E-mail attachments and from photo prints to Custom T-shirts with unbelievable Crispiness and Clarity of true Color Reproduction. Our image transfer paper is 11.5" x 8" heavy duty industrial grade. -
The Internet's most up-to-date list of UK radio stations simultaneously broadcasting on the web. -
This is a SSB and CW transceiver for the 80m and 20m bands. It produces 25 Watts out and uses a digital frequency display. -
Magnetic loop for 20 to 6 metres pedestrian mobile by VK3YE -
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Operating on the 11-meter band, the Alfa Tango Argentina website serves as a digital hub for CB radio DX enthusiasts, particularly those affiliated with the _Alfa Tango_ international group. The resource primarily functions as a community portal, facilitating connections among members and promoting activities related to long-distance CB communications. It presents basic information about the group's presence in Argentina and emphasizes the social aspect of radio communication, framing participants as "friends who have never met." The site's content reflects the operational focus on **DXing** within the CB radio sphere, a practice that mirrors amateur radio's pursuit of distant contacts. While specific operational data or technical guides are not detailed, the site's existence supports the organizational structure of the Alfa Tango group, which coordinates activities across various countries. -
A Wire resonant loop antenna for 160 meters band article by N4KC -
An Unorthodox Antenna, originally by W3AWH is considered a multi-band antenna suitable for fixed location use and as an easily deployable portable antenna for events such as Field Days. -
ARRL video review of the Yaesu FTDX-5000 -
CQ Serenade was composed sometime between 1965 and 1970 by Maurice Durieux, VE2QS. -
Christian radio station 'The Overcomer' providing broadcasts via shortwave. -
This is the schematic of asolid-state 7 MHz QRP CW transmitter by VU2NAN -
This calculator is designed to give the horizontal length of a particular dipole including Tees, antenna, or one side of it, for the frequency chosen. Enter the desired frequency and select the desired calculation from the drop box -
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A DIY guide to build your own compact multiband HF antenna based on the G3TXQ version using a 1:4 balun. This article includes the full part list and instructions to assembly, including the center plate. -
The N3UJJ multi band cage dipole antenna project thay can fit a small property -
K8CU builds a classic 1967 QST semiconductor project during the 40th anniversary year of the original project publication. -
This document details the design and construction of the PA70H, a 50-watt RF amplifier for the 70MHz (4-meter) amateur radio band. Built around the Mitsubishi RD70HVF1 MOSFET transistor, the amplifier delivers 45-55W output with 3-5W input power while operating on 13.8V DC at approximately 7-8A. The PCB design incorporates multiple protection circuits including overcurrent, SWR, and temperature control. The amplifier features various control modes including GND PTT, +13.8V PTT, and RF VOX. Two versions are available: PA70HLI (requiring 100mW input with additional driver) and PA70H (for 3-5W input). The comprehensive documentation includes circuit diagrams, assembly instructions, and performance data showing successful operation from both 100mW and 3.5W input sources. -
Power connectors, power cables, coax cables, wires, batteries fuses and holders and tools -
French amateur radio dealer for kenwood, alinco, cubex, acom, comet, inrad, eton,f9ft, tennadyne, tigertronix -
You wanna try to work modern satellite like AO-40 but have only one rig ICOM-706MKIIG ? This article will help you. -
This tutorial provides step-by-step instructions for setting up the ICOM IC-7300 to work with WinLink and WinMor. The process begins with downloading the necessary USB driver from ICOM Japan, followed by configuring the radio settings through the menu. Key settings include selecting the correct output and data modes, as well as ensuring the USB serial function is properly set. Once the radio is connected to the PC via USB, the drivers will install automatically, allowing for seamless communication. After confirming the installation of the USB Audio CODEC and COM port, users are guided to download the RMS Client Software for WinLink. The tutorial emphasizes the importance of understanding the WinLink system and provides links to additional resources for setup. Finally, it details how to configure the WinMor modem settings, ensuring the ICOM IC-7300 is ready for effective digital communication. This guide is essential for operators looking to enhance their digital capabilities using the IC-7300. -
For radio amateurs and electronics enthusiasts maintaining vintage tube gear, having accurate documentation for tube testers is crucial. Michael Marx, WB0SND, through SND Tube Sales, provides high-quality reproductions of these essential manuals. These aren't mere photocopies; each manual is digitally scanned, cleaned of imperfections, and professionally printed on a _Laserjet 5000_ with heavy card stock covers and plastic comb binding, often making them difficult to distinguish from originals. The catalog includes instruction manuals, schematics, and roll chart supplements for a wide array of classic tube testers. Operators can find documentation for popular models such as the _Hickok 539B/C_, _AVO CT-160_, and _B&K 700_, along with military-grade testers like the _TV-7_ and _USM-118_. Many listings also offer specialized supplements for obsolete or foreign tubes, ensuring comprehensive coverage for diverse tube collections. WB0SND's offerings extend to calibration instructions and data for specific adapters like the _Hickok CA-4_ and _CA-5_, providing critical support for precise tube testing. -
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This voice-keyer-interface connects between a Yaesu FT1000MP and a PC's sound card & COM port. It can be used as a voice-keyer with Contest Voice Blaster and as a voice-keyer and CW-keyer with Writelog. -
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Club in Portage County. We have fun with ham radio. Meet at Mike's place Rts 43/261 in Kent - 2nd Monday 7pm. All welcome! -
Yaesu VX-8R specifications and picture -
One of just a few webpages for the magic band, see it from the german point of view. -
Radio club serving ham operators in Southwestern Idaho and Eastern Oregon. -
Special purpose amateur radio club devoted to the pursuit of operating and technical excellence. This site serves as a library of amateur radio contest and DX information. -
Communication scanners, antennas and cables canadian dealer based in Norwich Ontario -
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Ham radio news, views, the website that makes it's own gravy -
This article loaded with nice pictures and schematics, describes a 160-10 meter linear amplifier that uses a pair of 3-500Z triode power tubes. It was designed and constructed by William Moneysmith, W4NFR. The amplifier features fast warm up and 1500-Watt RF output with 100-Watts of drive. -
The intrepid newcomer encounters common mode problems in a mobile environment. Implementing some common mode chokes will be possible to reduce interferences -
A schematic for a DX circuit protection for the Yaesu FT-817, provides protection from the external power supply overvoltage by DL2LTO in german -
Paul Harden NA5N has produced a superb guide to solar activity and HF propagation for the QRPer -
Info and specifications on my three beacons on 10 and 6 meter bands. You will find also informations on the propagation for these two band. -
Alfa Tango England Official Homepage - A vast amount of information about the English division of GRI Alfa Tango also including DX news, tools, software and events -
Located in the Owen Sound,Ontario area. Meetings are the 4th Tuesday of the month except for summer. -
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Information about our local Echolink Node #1224, on Long Island NY