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Baluns for amateur and commercial radio. -
Ari Milano draw and keep updated these pdf files representing the "radioamatori" bandplan, with notes in italian -
This vertical antenna consist of a 18 meters telescopic pole and allow operations from 160 to 30 meters band, project by Daniel Zimmerman N3OX -
This receive only loop covers a frequency range of about 5 MHz to 22 MHz and is built from readily available parts. -
open source software designed to control and program the ICOM IC-R8500 receiver -
The page provides a utility to record QSOs for amateur radio operators, allowing them to send the recorded signal back to the other station. It addresses challenges with VOX capability in radios and offers solutions for different radio models. -
Receiving Common Mode Noise shows how lack of a balun can contribute to system noise -
Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads -
A 1:1 current balun that offeres a almost flat swr curve from 1 to 30 MHz -
This article describes a loop usable from 7 - 21 mHz, using half inch copper tube 3 feet in circumference -
Free format input, User selectable usage of reports, counters for DXCCs, WWL, DOK/UK Counties/CQ/ITU/States/Provinces and more -
An interesting Elecraft KX3 go box, for a total of 1,6 Kg 3,5 lbs with list of needed parts to build your own box by OE2ATN -
MSDOS astronomical clock and celestial tracking program with navigation features -
The Icom IC-7300 is a popular HF transceiver among amateur radio operators, known for its advanced features and performance. This modification guide focuses on enabling extended transmission capabilities, specifically for MARS and CAP frequencies. The instructions are based on the work of PA2DB and include detailed steps for removing specific diodes to unlock additional frequency ranges. Before proceeding with the modification, users are advised to take necessary precautions, such as ensuring the radio is powered off and using ESD protection. The guide emphasizes the importance of using appropriate soldering techniques and tools to avoid damaging sensitive components. A video demonstration is also provided to assist users visually in performing the mod. While this modification can enhance the functionality of the IC-7300, it is crucial to note that it may void the warranty and should be undertaken at the operator's own risk. The guide serves as a valuable resource for those looking to expand their operating capabilities with this versatile transceiver. -
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Anyone attempting to work DX on Top-Band 160 Meters, soon learns of the need for a good receiving antenna. This is a 160 meter 8 element receiving array. -
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This is a compact three transistor regenerative general coverage receiver with fixed feedback -
easily design your cable, pick connectors and cable, print drawing, get immediate quote and place order, all online. -
This webpage describe how to set up the Signalink USB interface and Yaesu FT-857D for digital operations by NA4IT -
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A complete review of Icom IC-706 review published in 1999 by QST -
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Reference Manual developed by the Ventura County ARES AREA 6 Training Group -
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All Band HF Doublet for operation over all HF bands including 160m. -
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Australia's largest online database of VK email & URL's. Home of the AAR Netring and VK Classifieds. Repeater lists, maps and more... -
Planning and modelling Delta Loop antennas for all the ham radio HF bands include calculated wire lengths at each mid-band -
G4PDQ's PacketCluster routines to make PacketCluster a little more interesting for the user and a little easier for the SysOp -
The antenna is a vertical dipole, around which four parasitic elements are forming a circle. -
Homebrew antenna insulators for DK7ZB yagi antennas -
XPWare offers support for AEA, Kantronics, SCS/Paccomm and Hal controllers. The program also offers full transceiver control for most of todays HF radios and support DX Cluster monitoring. No more supported and developed by author. Now freeware. -
Schematic for Yaesu FT-857 CAT interface -
On line qsl route and manager addresses by ik3qar -
Spark is a realtime modulator software for Digital Radio Mondiale DRM, DRM+ and analog FM/AM radio standards. The software supports all code rates, bandwidths and robustness modes (A, B, C, D, E) published in the DRM standard as well as all mapping schemes, such as Standard Mapping -
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An old project by I1VCF for a 3 element yagi antenna originally designed for 10/15/20 and extended to 24 and 18 Mhz in Italian -
Gap Titan DX Antenna manual. This is an enhanced version of the common Gap Titan DX Manual document you can download from other sites. This manual is in PDF Format. -
JIM, N0UQZ TS-2000 review -
Transverter for 70MHz, a project by G3XBM -
Shortwave radio reviews ar swling.com -
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Ferrite Toroids. Iron Powder Toroids. Ferrite Beads. Split Cores. Cable clamp-ons. Balun Cores. W2FMI Baluns and Ununs. Inductive components for EMI Suppression and RFI Suppresion, power supplies, HAM radio. -
This project produces an inexpensive, multiband, end fed HF antenna matchbox, quick and easy to setup. This project creates a trifilar wound, 9:1 UNUN toroid matching transformer. Handles 100W and need an antenna tuner. -
English version of the Yaesu FT-7800 operating manual -
BIRD RF power measuring, new and used, HENRY RF power amplifiers (used HF amps), TOHTSU coaxial relays, SAMLEX power supplies, RFI chokes reduce interference, Parts parts, tubes, Used amplifiers, radios, antennas and accessories, Los Angeles, CA. -
SDR Forum - organization dedicated to promoting the development, deployment and use of software defined radio technologies for advanced wireless systems. -
Amplifier keying buffer for ICOM radios & others. Suitable for IC-746 IC-756 PRO and PROII. ACC1 key interface by KK5DR -
Progress in Design of Extremely Short Transmitting Antennas Short and still efficient, how is that possible? By Juergen Schaefer, DL7PE author of the MicroVert antenna concept. The MicroVert introduced in this document is an extremely short and hardly visible short-wave antenna with outstanding radiation properties