rf amplifiers

Rotatable Dipole for 40m-6m - This article describes a simple, inexpensive, dipole antenna that will rival the performance of a ten-meter beam.

Where Does the Power Go - An Energy Analysis at an Impedance Discontinuity in an RF Transmission Line

Hex Beam by K4KIO - This site provides guidelines to build a G3TXQ broad band hex beam RF antenna for the 5 ham radio bands, 20, 17, 15, 12 and 10 meters. The G3TXQ hex beam is a new development and actually easier to build than the classic hexbeam.

The WWVB Receiving Antenna - The construction of this antenna is intended to be inexpensive, fast, and effective. Very capable in receiving WWVB from california.

TrapDip - This program let you design and performance of 2-band trapped dipole antennas including trap design.

SV - Greece - Radio shack rental in greece by Jürgen Eisinga - DL2YAG - SV0IE

VE - Canada - PEI DX LODGE - Prince Edward Island. The PEI DX Lodge offers a turnkey operation from a custom designed shack featuring state of the art transceivers/amplifiers, etc. and the ultimate in antennas on every band.

NARCC - Northern Amateur Relay Council of California - The Amateur Radio coordinating organization for the 10 meter band and higher in northern California. In cooperation with the FCC, ARRL, and the support of the hams in northern California, NARCC performs the repeater coordination function for the region.

DanAmps - Danish Amplifiers for Hams - HF and VHF RF Power amplifiers for ham radio use

The Caltech Radio Frequency and Microwave Group - Develop microwave amplifiers and related products

Tomco RF Amplifiers - Rf amplifiers for commercial, industrial and scientific applications

Amateur Radio Techniques - RF Filters an adjustable j-pole antenna manufacturer based in greece

Myers Engineering - Broadband mobile radio antennas, vhf uhf antennas, commercial radios and scanners, rf coax cables and connectors

Low Power Radio and Broadcast Company - Manufacturers of high performance low power am transmitter products: sstran amt3000, bc-100, and the mw-250. for home and professional use.

Ameritron manuals - Manuals section for the Ameritron HF amplifiers mostly in PDF format

Rocky Mountain Radio - Provide RF connectors, adaptors, antennas, accessories, mounts, coax, West Mountain Radio Products and Anderson Power Products available.

TANT 136 - DOS program for calculating the performance of a T antenna. Gives loading coil info and matching plus ERP by Reg G4FGQ

Linrad - Multiplatoform freeware DSP software. Linrad has its origin in software that was developed for 144 MHz EME CW but it is quite general and should be seen more like a kit for designing a receiver that a receiver for some particular usage. It can be used as a CW receiver with a small time delay and a fast waterfall graph. A dsp for conventional receiver to imporve signals readability, a spectrum analyzer.

ChirpPix - ChirpPix converts a bitmap image to a wave file, which can then be sent by a SSB transmitter and received on spectrogram waterfall displays Image Transmission using ChirpPix and ChirpHell

MT Hell - MT-Hell software for 16 bit Soundblaster cards. Sends seven parallel tones with careful dot shaping for minimum interference, and transmits a very nice sound by G3PPT

RadioComm  ^pop - RadioComm can be used to program your Icom radio's memory, or to create nice radio-frequency spectra (see above) or to interface your radio to a huge database of frequencies.

ICOM OCX - CI-V OCX For The Icom 756Pro allow you to interface your own application or visual basic, excel, word or similar custom applications to your icom radio.

Homebrewing a tube-type HF amp. - This article discuss the use and construction of a grounded-grid, triode type HF amplifiers

AM6155 / 64 modifications - KF0M's mods for the AM6155 AM6154 RF amplifier

TenTec 1208CY 10 .. 50 MHz Transverter - A well-known transverter modified for 10 MHz IF (for Softrock interface use) by DF9CY