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Over 20 years of development have gone into _Shacklog_, a logging software designed for radio amateurs and Shortwave Listeners (SWLs), primarily from the UK. This resource provides a detailed overview of its capabilities, which include real-time and post-event QSO logging, comprehensive log analysis and reporting, and the ability to print QSL labels. It also features a country status display, rig control integration, and supports importing existing logs, along with interfacing with CallBook CD-ROMs for callsign lookups. The software facilitates efficient management of radio contacts, allowing users to track their DXCC status and other awards. Its analytical tools help operators review their operating patterns and contest performance, while the QSL label printing function streamlines the process of confirming contacts. The integration with rig control systems enhances the logging experience by automating data entry, making it a practical tool for both casual logging and competitive contesting.

Yaesu FT 101 unofficial web site managed by NW2M

The Bazooka-antenna was developed by the staff of M.I.T. for radar use. The original Bazooka used coaxial cable for the entire radiating elements.

Magnetic longwire baluns 1:9 combined with ground, a 1:2 and 1:1 balun connections by ON6MU

SP5DDJ mini antenna tuner for QRP operations

Yaesu CAT Cable for FT-817 857 897

This little gadget is that it allows you to tune up at full peak output power, whilst limiting the average power to a fraction of the peak, thereby protecting the PA from meltdown

eQSLMaster is a HAM radio program, that allow to perform various functions using the Electronic QSL Card Centre (eQSL.cc). With eQSLMaster users of the eQSL.cc system have the ability to upload an entire ADIF format log file (or single QSO) and have it deposited into eQSL central database using LogServices.

MC-50 microphone modification for high emphasis, connecto kenwood ts-50 to kenwood radios.

A vertical monoband that's small, light and portable, needs no counterpoise and performs as well as a home antenna

Easy for calculate formula which could be a wake-up call for you. The SWR value at the input of antenna cable is not a actual SWR of your favorite antenna.

Web site updated several times per month. It covers all aspects of ham radio.

A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.

Freeware program, special and easy to use packet program for communicating with ISS, PCSat and other 'compatible' sats. Can also be used for basic normal packet.

Includes EH antennas, 7Mhz vertical monopoles, 5 elements vee log-yagi for 10m and more

40 meter transmitter by K9GDT

Schematic for a DIY 70 cm vertical antenna

Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band.

Project by VE7GC

PA2OHH portable regenerative receiver

Details a practical QRP wattmeter construction, leveraging a simplified SWR meter design by JA6HIC. The project focuses on a forward-only power measurement circuit, providing a functional instrument for RF power levels from milliwatts up to 5 watts. It maintains a 50-ohm input and output impedance, suitable for typical QRP transceivers and antenna systems. The resource includes the schematic for the "VSW" (Very Simple Wattmeter) and outlines a six-step alignment procedure. This calibration process involves using a known RF source up to 5W, setting full-scale deflection, and marking power increments. It also addresses minimizing frequency effects on readings with a 100pF trimmer capacitor, noting that measurement error is highest at the lower end of the scale. Construction notes mention using a piece of RG-213 coaxial cable for the inductance and coupler, with the wattmeter assembled in early 2003. The author provides an example measurement showing 0.8W into a dummy load and 1W into a 3-element beam.

A 14 elemets yagi antenna for 432 MHz based on DK7ZB design

Two element X-Beam is a high-performance broad-band antenna that is ideal for Ham radio operators with limited space. X-Beams are inexpensive and easy to build. The performance of the simple X-beam is amazingly similar to larger, more conventional antennas by 4S7NR

A VHF / UHF J-pole vertical antenna de ON6MU

On 23cm the best way to obtain a good RX-sensitivity is to use a GaAs-FET in the front-end, since these devices show very low noise figures.

A 3500kHz - 3579kHz range transceiver, output 250 mw by SP5DDJ

All about amateur radio, police scanner frequencies. Frequency Listings for Kentucky, West Virginia, Virginia and others. Add your URL to the Scanner Link Page.

This antenna is very useful for receiving or scanning purposes, but you can use it for transmitting, too. It is 2,94m long and has a pi-configuration (Collins-Filter) for the matching.

The slim-jim antenna for 144 MHz

A list of frequencies for ham radio operators QRP operation and with a special reference for those using the Fireball 40 a multi-band QRP TX kit

Cancelling out unwanted noise sources by DL3FP

Signal Generator (VFO) with Direct Digital Synthesis by Bruce AA0ED and Craig AA0ZZ

A standard 6 elements design scaled for UHF application. All material used in this project are easily obtainable tubes and rods which is limited within a total budget of $18.

Descriptions for 144-MHz- , 70 MHz- and 50-MHz-Reflector-Hentennas

Ham radio humor and stories

These yagis and groups were designed with YO7.23 from K6STI and checked with EZNEC from W7EL. With a gain of 14/17/20dBd they have a good relation between gain and mechanical problems.

2 meter or Dual Band J-pole bicycle antenna

Elelement yagi beam antenna for 2 meters band by ON6MU

How to build a high gain vertical antenna for the UHF amateur or CB Bands, by radio experimenters handbook

Easy circuit that provide good gain to weak audio signals

N5IW ideas to build your own antenna in a restricted lot, or a stealth antenna. Includes PPT files of HF and VHF stealth antennas.

What is hallicrafters? Let these photos illustrate the soul of hallicrafters. by LA5KI

Several projects which will allow you to build your own RF design test equipment.

One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.

80m hexfet power amplifier by W7ZOI

Index of logs hosted on DX.QSL.NET

3 to 30 Mhz antenna analyzer schematic by YO3DAC / VA3IUL

SerialKey is a Freeware DOS Morse code keyboard that uses the serial port, by Jeff Rowberg (KF6RLU)

The DSP Satellite Transceiver is a conceptual transceiver designed as a dedicated unit for amateur satellite operators. The initial concept was brought about by the lack of satellite functionality on modern amateur radio transceivers, and the specialized requirements of the ham radio operator who utilizes OSCAR amateur satellites.

Simple, easy to built match developed in 1995 for Yagis with resistitive loads of 12.5, 18 and 28 Ohm.