power

Online Antenna Analysis and Design Software  ^updated - Free online software to calculate wire antenna power patterns, directivity, input impedance using method of moments.

Distributed Antenna System DAS - Distributed Antenna Systems technology used for gaining better coverage and using a lower power.

The FXTenna Portable Antenna - KD5FX, 20 through 6 meters, QRP to full legal power, lightweight, easy to carry

SWR Table - Power loss table by SWR values

VSWR Reactive Power - Many antennas and antenna designers neglect the true cause of loss. The major problem using short antennas is the reactance, not the length

GB3JB 2m Repeater - Willoughby Hedge - The Green Repeater Powered by Wind and Solar Energy

Power Film Solar - PowerFilm, Inc. develops and manufactures thin, flexible solar modules for OEM, military and consumer needs.

PVPower.com Solar Panels - PV Solar Panels, Photovoltaic Panels, Solar Power

Dishtronix - High power, solid state RF amplifiers and accessories, amateur radio power meters and Prometheus RF power amplifier manufacturer

MALtronix - Maltronix, HF antennas, dipoles and verticals, switching power supply, power distribution, antenna switch

5W SWR Meters - HF VHF UHF Digital SWR & Power meter manufacturer based in China

Baofeng Radio - Fujian Nan'an Baofeng Electronics Co Ltd. specializes in the research, manufacturing, and marketing of communication products including amateur radio Ham Radio VHF UHF handheld transceivers.

Triton ETD - Traveling Wave Tubes , Conventional Traveling Wave Tubes, Microwave Power Modules manufacturer

Home Power Magazine - Independently published since 1987, home power magazine and homepower.com are resources dedicated to small-scale renewable energy and sustainable living technologies.

Restoring A Drake TR-7 To Full Output Power - By Floyd Sense K8AC

IRTTY2 - IRTTY2 is an HF Ham Radio modem for RTTY (170 hz, 45 baudot) mode. Easy to use but powerful, with waterfall and Macros.

SDR-RADIO.com - SDR-RADIO.com is a Windows console for SDR receivers and transceivers. Designed for the commercial, amateur radio and short-wave listener communities, the console provides a powerful interface for all SDR users. Many SDR owners have made their radios available over the internet. Just look at the Web Servers page for a list of the radios you can use. You do not need a licence to use this sodftware with RFSPACE, FUNcube Dongles, Soundcard (SoftRock) and low-end SDRs.

MorseDec - MorseDec decodes and encodes Morse with a range of 5 to 50 wpm. It includes: auto-tracking for wpm speed, macros, spectrum analyzer. Easy to use but powerful.

AI7R Solar Power Page - Solar power setup by ham radio station AI7R

Understanding Linear Amplifiers - Understanding Solid State Linear Amplifiers

Amplifiers - Care and Feeding - Antenna and Power considerations, ALC Keying interface, Battery info, Keying interfaces and more

A high perfomance Crowbar Circuit - The MC3423 can protect sensitive circuity from power supply transients or regulator failure when used with an external "Crowbar" SCR.

0-30V 10A adjustable power supply - Building a microprocessor controller power supply, capable of delivering 0-30V output at 10 A.

Non-relay instant RF Switching - Coax lines to do the RF switching. The advantages are instant switching, no power wasting DC control circuits.

0-20V 5A adjustable power supply - This project describe building an adjustable power supply, capable of delivering 0-20V output at 5A.