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- Antennas > 40M > 40 meter Magnetic Loop Antennas
- DX Resources > Nets > Emergency Nets
- Internet and Radio
- Operating Modes > Internet Linking
- Manufacturers > Antennas > HF > Magnetic Loop
- DX Resources > Nets
- Operating Aids > Phonetics and codes
- Internet and Radio > Social Networks
- Technical Reference > Vector Network Analyzer
- Software > Vector Network Analyzer
- Software > Internet Linking
- Shopping and Services > Internet services
- Antennas > Magnetic Loop
- Antennas > 20M
- Ham Radio > Clubs > North America > USA > Alaska
- Operating Modes > Internet Linking > AllStarLink
- Operating Modes > AM
- Software > Audio Streaming
- DX Resources > Beacons
- Operating Modes > Packet Radio > Clubs
- DX Resources > Clusters
- DX Resources > County Hunting
- Operating Modes > DMR
- Software > DX Cluster
- Software > Linux > DX Cluster Clients
- Operating Modes > Internet Linking > EchoLink
- Operating Modes > HSMM
- Operating Modes > Internet Linking > IRLP
- Ham Radio > Clubs > North America > USA > Nevada
- Internet and Radio > News Groups
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Website devoted entirely to the Yaesu FT1000MP. Our purpose is to link you with other owners and to enhance the understanding and appreciation for just what the radio can do, and how you can use other hardware and software with it.
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Satellite Orbital Prediction and Satellite Tracking
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Decode digital and analog signals out of any high quality Transceiver or Receiver, works as a DSP-analyzing system
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Opensource software implementation of a DRM Receiver. Digital Radio Mondiale (DRM) is a new digital radio standard for the long-, medium- and short-wave ranges
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Advices for newcomers on shortwave listening by Daniel A. Grunberg
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The best antenna is the simple Dipole. If you have height, you even can put up a quarter wave vertical or an inverted, but sometimes you may need shorten version by 4S7NR
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For operators seeking to improve their 6-meter mobile operations, W3DHJ presents his **Jones version** of the lawn chair 6M halo antenna, a horizontally polarized design suitable for vehicular use. The project details the thought process, material selection, and construction techniques, including the **gamma match** for impedance transformation. W3DHJ recounts his journey from using a suboptimal 2-meter whip on 6 meters to designing a dedicated antenna for his new IC-706 MKII, aiming for efficient radiation while mobile. The resource outlines the sequential build process, starting with project beginnings and covering mast fabrication, initial halo construction, gamma match implementation, and final tuning. W3DHJ shares his experiences and even mistakes, providing practical insights for fellow homebrewers. The design is specifically engineered to withstand mobile speeds up to 85 MPH, offering a robust solution for enhancing 6M DXing and local contacts from a vehicle.
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Wintrak and traksat, satellite tracking software
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10-12-15-17-20m A description was in the German Ham-Magazine "Funkamateur" in Issue 11/2003
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Freeware MSDOS SSTV program by WB2OSZ, Automatic Calibration, Automatic Fine Tuning, Widest Variety of File Types
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A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations
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GAP Titan DX Evaluation, antenna for 10m 15m 20m 40m 80m
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Amateur Radio Maps DOS and Windows program which contains maps of continents and countries. Not updated since 2000.
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An easy guide to "How to build your own magnetic loop" for 20 meters
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Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE
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CHIRP is a free, open-source, cross-platform radio programming tool that supports a large number of transceivers from manufacturers such as Icom, Kenwood, Yaesu, Alinco, Wouxun, Puxing, and Baofeng. Chirp radio software run on Windows, Linux, and macOS, enabling users to exchange data between different radio models and interface with multiple data sources and formats. The program streamlines the configuration of memory channels, frequencies, and various settings for amateur radio handhelds. Specific models supported include the _Icom IC-7300_, _Kenwood TH-D74_, and _Yaesu FT-818_, among many others. CHIRP provides compatibility with various file formats, including Generic CSV, RT Systems CSV, ARRL Travel Plus (.tpe), and manufacturer-specific formats like Kenwood KPG-44D (.dat) and Icom Data Files (.icf). Additionally, it integrates with the DMR-MARC Database for enhanced programming capabilities. Users can download CHIRP for their platform and access extensive documentation, including a FAQ and a mailing list for support. The project encourages users to consult existing documentation and open/closed tickets before submitting new bug reports or feature requests.
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Antenna Scatterers Analysis Program, is a Free general purpose antenna analysis software program for numerical electromagnetic antenna design, modeling and analysis. Source code and windows executables are available to download.
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An easy to build antenna switch for long wire antennas, expecially designed for sloper antennas
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3 elements VHF Yagi homebrew antenna designed with YAGIMAX 3. Maximum forward GAIN is about 8,17 DBi. This antenna offering an effective radiation power 4 times greater of the transceiver output by SV1BSX
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G3PTO antenna drawing plan for a 50MHz 6 Element Yagi beam
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Multi Band Quad,Cushcraft R5, R7, R7000, repair and maintenance, Remote Antenna Switching, Hexagonal Beam, Automatic Band Decoder, Low Band Verticals, Crank-up Tiltover Tower etc
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A .ico file library containing lots of icons for Windows, regarding Amateur Radio, to customize your desktop
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This Delta Loop is a three-sided antenna suspended high in the air by vertical supports, such as tall evergreen trees. Recommended height is 40 feet or more at highest point, but higher is better.
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This page contains dynamically updated propagation information.
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Predicts ionospheric (sky-wave) propagation between any two locations on the earth on frequencies between 3 and 30 MHz
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Maco Manufacturing, HF Antennas, gamma matches, cable assemblies, power supply, swr meters, watt meters
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An easy to build antenna switch with common rele
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A 3 elements long yagi antenna for 6 meters band by ON6MU
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A coil loaded dipole antenna for 40 and 80 meters band by I2CN
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py2ohh homebrewing of receivers, transmiters and Test Equipment for ham and swl, using cheap, easy to find or surplus components
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RufzXP is an excellent free training software for improving code speed and CW practice, particularly (ultra) high speed memory copying of true amateur radio calls.
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Interesting project to remotely control, using a servo control circuit, a common commercial antenna tuner by N30X
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A **mobile HF multiband antenna** project details the construction of a center and top-loaded design, optimized for 10 through 80 meters. This antenna incorporates a capacity hat positioned high on the whip for enhanced efficiency, differing from commercial bugcatcher designs. The coil construction prioritizes high Q and minimal loss through an air core, open spacing, and heavy gauge wire, contributing to its lightweight nature and suitability for portable operation with a proper counterpoise. Band switching is achieved by manually moving a jumper plug to various tap points on the coil, allowing for operation across multiple bands, with 17m being resonant when the coil is bypassed. The design, a result of nine months of experimentation by N1LO, includes detailed instructions for modifying a Hamstick antenna base, creating a jumper wire, and assembling the capacity hat using stainless steel wire and silver-bearing solder for robust connections. The loading coil utilizes nylon grommet strips around a PVC pipe for an air-core winding, ensuring high efficiency. Tap sockets are fashioned from silver-plated 5-way binding posts, providing low-resistance RF joints for band selection. Guidance on tap point determination emphasizes using an antenna analyzer like the MFJ 259B or 269 to achieve resonance, especially on 40m and 80m where feedpoint resistance can be low. The document also covers the installation of monofilament stays to maintain antenna uprightness at highway speeds, with specific attachment points for stability.
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This homebrew legal-limit antenna tuner is based on the famous "Ultimate Transmatch" introduced by the late Lew McCoy, W1ICP. The Ultimate Transmatch was described in the "Beginner and Novice" section of the July 1970 QST (Page 24).
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A portable antenna for mode B and J satellites
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Inductance and Capacitance meter using``Frequency Shifted Oscillator
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DIY Basic Electronic Theory, Basic Antenna Theory with Antennas built from common materials. What does SWR really mean. Baluns from transmission line.
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The Yaesu VL-1000 Quadra HF Linear amplifier
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This sketch will read RF power and SWR from any SWR bridge, designed to work on VHF UHF bands