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Cutting out the noise using a simple coax filter to improve the poor front end filtering -
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Dipoles at the correct height are not only stealthy antennas, they work great -
A simple morse code practice oscillator using either PNP or NPN typr transistors -
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Contesting, CW, antennas and review on TK/OE5XVL DXpedition 1999 plus my GD/OE5OHO DXpedition in 1997. -
This article describes how to build a general purpose DTMF decoder with a low-price chip from MITEL -
Modifications to the Tigertronics Signalink USB sound card -
A receiving loop antenna for low frequency DX Work -
How to have a way of elevating an antenna connected to the mobile rig in your car or truck. -
An economical dipole for simple QRP HF homebrew rigs -
How to connect and key Power Amplifiers to Kenwood TS 590 or TS 990. How to home made custom Remote cable to key power amplifiers by JG1VGX -
Adam, VA7OJ/AB4OJ's IC-756Pro III User Review -
Modoification for the Yaesu FT-8800 144/430 MHz dual band FM transceiver -
This antenna was designed for the CQ WW CW 2009 at EA8URL. All elements are made out of fishing rods with an insulated copper cable fixed on the rods by cable ties. Both fishing rods and cable are UV resistant. -
Theory and origins of W4RNL Asymmetrical Hatted Vertical Dipole AHVD for portable operations. -
The free CW Speed Training Software for Windows by JI0VWL -
Personal web page of Gerardo Pe?a. From Cuenca, in the South Center of Ecuador. -
A homebrew four elements log periodic antenna for HF bands -
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by Jim Stafford, W4QO appeared in QRP Quarterly, Fall, 2006 -
A custom modification RC-D710 GPS-INSIDE mod. -
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Installing mobile radios in your new megabucks car can be a frightening proposition - especially if RF from your rig could damage your shiny new roadster -
This simple utility is intended to facilitate the coversion of a properly formatted ADIF file to a delimited text file. This file may then be used for import into such applications as MS Excel or others. -
A frame antenna for the 80 meters band, built to be folded and to be easy to be mounted and dismounted. This antenna is suitable for indoor and QRP use, bandwidth is just 10kHz and should be observed a proper distance while transmitting due to high voltage. -
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Cushcraft A3S performances with the A743 kit to add 30 and 40 meters -
A simple UHF Crystal Radio wired up to check for reception of VHF/UHF signals in the vicinity of the shack. -
Attenuating output power to Yaesu FT-817 and interesting article for really QRP operations by PA1B -
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The RadioFrequency Program is a professional Software dedicated to all HAM, SWL and Radio Listeners. Freeware. Included is a Text-CSV dBase Converter. Connection to the ICOM R8500 Receiver. Special Scanning Feature. Special Search Feature x large dBase. -
Amateur radio windows fonts with slashed zero and Phi also listed some morse code fonts available to download -
VHF channel usage, making a mayday call, and related informations -
Octagonal magentic loop antennas that work from 20 to 10 meters with pictures and efficiency reports by G1KEA -
Searchable database of amateur repeaters and broadcast transmitters. The database covers the fifty U.S. states, the District of Columbia, and the ten Canadian provinces. -
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Features, functions, a howto and opinions by Jason Buchanan - N1SU -
Using portable generators during emergencies or at field day site, using batteries and how to recharge them, using solar panels. -
iSpectrum is a free spectrum analyzer for MacOS that allows you to display live audio in a standard frequency plot, waterfall display or in a stereo oscilloscope view. Used by ham radio operators, audiofiles, musicians, and Sound Technicians. -
Windows signal function generator sotfware, offers 4 main channels, 4 modulators, 1 measurement generator, 1 frequency standard generator, Amplitude, phase and frequency modulation, can generates real band-limited signals -
Using Andrew FSJ1-50A 1/4" Superflex Heliax with PL-259 Connectors -
This project is an interface box for the Yaesu FT-817 that includes a band output port, a computer serial interface, and a remote interface for the FL-7000 solid state power amplifiers. -
UPU list of countries that sell International Reply Coupons -
