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A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters -
This article describes the antenna for Low Frequency Beacon. It originally appeared in the "Lowdown" for Oct. 1999. -
Class C tuned VHF power amplifier for the 6-meter band by ON6MU -
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Although a magnetic loop antenna(aka small loop antenna) is very compact, its efficiency is close to a half-wavelength dipole if carefully built. -
Offer a wide range of homebrewing projects mainly for VHF UHF operations. From vhf antennas to preamplifiers, chargers and power supplies -
A QRP transceiver for 80 meters band by W1FB -
Feld hell freeware windows program that permits RTX hellschriber operations by PA3BQS -
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7N3WVM homebrew project of a 3 W output CW transceiver on 7 MHz band -
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Beaconmap is a Win95/98/NT program to help listeners to identify the beacon stations of the NCDXF/IARU beacon network. The program displays a flashing dot at the location of the beacon that is currently transmitting. The call sign of the beacon, as well as the QTH is shown in the status bar. By PA1ARE -
A live police broadcast for the Detroit area police department. Michigan Public Safety Communications System (mpscs) -
2E1EHM web site with a collection of pictures. You can download from this site to add to your SSTV picture library. -
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At the moment the most used program is UA1AAF. It is an excellent program written by Boris, UA1AAF, to handle ARI International DX Contest. It can simulate K1EA or N6TR workings; it will be possible to connect the RTX to the computer using a standard interface in such a way as to transmit directly in CW from the keyboard; most of the controls are like K1EA's CT and N6TR's TR ; on line help provides almost all the information necessary for using the program. Is possible to insert QSO after the contest. An appropriate utility in included for conversion in ADIF format. The program is very small and therefore works without any problems on any IBM compatible computer with DOS 3.3 and over or Windows 95/98. -
A circuit which had been used in many other application before. The configuration described here is optimized for IPHONE/radio operation. -
The Quadlong antenna for the six meter band. This antenna feature a total gain of 6,4 dBd, F/B 21 dB and is also available in 70MHz version. Includes detailed pictures and plot diagrams. -
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DIY a Wi-FI Helical Antenna for better performances, a project by PA0HOO i Dutch end English -
Simple circuit, with a simple push, transmit a memorized Cw messages -
The utility "NEC-2 for MMANA" is intended for calculation of antenna models made and optimized in program MMANA and for construction and simulation of antenna models using input language NEC-2 and based on MMANA models. -
This circuit consists of microphone amplifier and a high pass filter. Suitable to improve signal readability. -
Repeaters available in or near Ridgecrest California, Amateur Radio License Examination Schedules -
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A 4 elements handitenna for 70 cm band. This is my version of the K5OE Handitenna. This one is a four Element instead of three, as I had less of a crunch on space than he did. The 1st three elements (Reflector, Driven Element, and Director 1) are the same dimensions as his were. -
There is not a personal design on this page, just I've transfered useful notes from PHILIPS RF Bipolar Transistors - Data HandBook about BLY89C VHF Power transistor, which is very popular among Amateur Radio homebrewers -
How to identify correct version of your TS-570 -
Personal Web Site of UX7CQ. Information about Ukraine. Old military radios collection. CW Straight Keys. -
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A SSB CW transceiver for six meters band with schematic and block diagram -
RF Power Meter using for reading a standard Digital Voltmeter by Iulian Rosu, YO3DAC / VA3IUL -
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PCB for the DJ9BV Power Meter taken from DUBUS 3/87 -
Approximately 800 x 600 resolution is recommended for optimal viewing of the _Connecticut Radio Society_ (W1CRS) website, which serves as a hub for active amateur radio operators. The site encourages participation in club activities, particularly emphasizing operating events and contests. It provides a digital presence for members and prospective members interested in local ham radio engagement. The society's focus includes general amateur radio operation and competitive contesting, aligning with its classification as a contest club. The resource is designed to foster community among hams in Connecticut, offering a point of contact for those seeking to engage with fellow operators and participate in organized radio events. The club's callsign, W1CRS, is prominently featured, signifying its identity within the amateur radio community. -
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Association with free membership for telegraphy lovers across the world. -
A power line noise eliminator designed to eliminate QRN expecially on 40 meters band. -
conversion of low band VHF Philips FM-828 E band down to 6 metres -
Battery problem with TS-570 -
Calculate power loss depending on coax cable you use -
This little project will make a portable 28 Volt DC power supply using two 12 Volt, 4.5 Ah rechargeable lead-acid batteries -
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This page describes a DC to DC voltage converter, pretty simple, for currents up to 500 mA by sv1bsx -
3 band mobile antenna - 10m full size wave/4 whip - quick tilt-down system for 20 and 15 m loading coil change by IZ7DJR -
VectorFox is a software born to incorporate a PC into the fox hunting environment. VectorFox is able to take inputs from up to 5 sources, such as a 2m beam, a 2m signal meter, a TDOA, etc, and display the results on the screen. VectorFox also accepts Agrelo inputs. From these results the operator can choose which indication is best and have a line drawn on the map in the direction of the signal. -
Collection of telegraph keys homebrew antenna projects links to radio software