regency range gain

Half-Square antennas - This doubet antenna is a half wave dipole antenna easy to build, in french

7db gain antenna for 2 meters band - This article describes building a 2-meter beam antenna with 7db gain for $7.00. Made of PVC and welding rod. Originally dated April 1993 by WB0CMT.

7 MHz Dipole at VK1ZKD - This article documents an unobtrusive antenna for operation on 7MHz, primarily for contacts with stations at up to 1000Km range.

DL6WU 50 Mhz Yagi - 5 elements Yagi antenna with an 8.7 db gain

Portable 70cm Quadruple Quad Beam - A suitable high gain 70cms antenna for SOTA operation was sought that did not have the drawbacks of a long Yagi antenna, principally a narrow beamwidth and bandwidth.

The Gain of an Endfire Array - This article looks at the maximum theoretically possible directive gain that could be obtained with an endfire array of given length or number of elements, and compares this with practical results in the literature.

Les baluns - About different baluns types. Samples and schematics for several ratios baluns in french

Multidipole Antenna - This antenna is a group o dipoles, is a multiband and each dipole works on single band.

Log Periodic of Another Sort - A log periodic dipole array (LPDA) antenna design that offer continuous low SWR in 13-30MHz range

About broadband - What you gain and what you lose. While broadband and electrically small antennas may look attractive on the surface, they are by necessity compromises and usually don’t work as well as tuned antennas.

Build an antenna for 23 cm band - Building an omnidirectionnal antenna for the 23 cm band, 1240 - 1270 Mhz

F8JZR Morse keys collection - Telegraphy collection, telegraph, sounder, relay by F8JZR in french

F5RRS Gallery - QSL collection from F5RRS

Midland GXT-900 Review - Midland GXT-900 FRS/GMRS 30-Mile Range Two-Way Radio product review

MicroHAMS - Microhams is a dynamic organization of hams in the Puget Sound area. The club includes a broad range of people from our local tech industry who participate in just about every aspect of our hobby.

Latchways - fall protection systems - Latchways are the world leaders in fall protection and the manufacturers of the mansafe range of products for working at height.

A D-ATV transmitter project - Build this simple and cheap 70 MHz Exciter and start to transmit Digital Television by Jean-François Fourcadier, F4DAY

So you want to learn morse code - Forget Frustration: Gain Valuable Morse Skills And Increase Your Amateur-Radio Pleasure by N1IRZ

The KA7OEI FT-817 pages - FT-817 Radio Modifications, Improving the FT-817 Noise Blanker, increasing output power, using rechargeable cells, epanding frequency range

LAM Communications - Icom Kenwood Yaesu MyDel dealer, offer a wide range of ham radio products, transceivers, antennas, rotators, microphonrs, aerials, dummy loads, rf amplifiers and scanners based in UK

The Shortwave Shop - Provide for the short wave listener, amateurs, local commercial community and business with a wide range of radio based services and products. Icom dealer

TNC - The Packet Terminal Driver program is a general purpose communications package for communicating with a packet TNC attached to your IBM-PC/clone. The program was written to work with the Kantronics range of TNC's but should work with any TNC that is connected to a serial port on your computer.

Spectrum Analyzer Real-time FFT - Eight-channel Audio Spectrum Analyzer is a set of Real-Time Multi-Channel Gauges for investigation of data accepted from any ADC you will want or 16-, 24- and 32-bit ADC of sound card. WDM drivers support. FFT Spectrum Analysis, OscilloScope, Frequency counter, AC/DC voltmeter, Signal-to-Noise Ratio, Signal-to-Noise and Distortion, Spurious-Free Dynamic Range, Effective Number Of Bits, Total Harmonic Distortion, Inter-Modulation Distortion, Phase Shift. Special modes of dual-channel FFT spectral analysis: Separate channels spectra, Spectra of digital sum, difference, product of two signals, Spectrum of digital product of original signal and its fundamental, Spectrum of Real and Complex Transfer Function, Cross Spectrum. Standart weighing of spectra according IEC and CCIR. Oscilloscope modes (for dual-channel ADC) are: original signals, sum, difference, dependence of one channel on another, amplitude distribution of input signals.

Amateur Radio Grounding to Protect Against Lightning - Protecting the ham radio stations, using a good ground system

Protecting Amateur Radio Station - Developing a protection plan against lightning