portable power

Tenna Dipper Kit - The "Tenna Dipper" is a low power antenna analyzer and ATU tuning aid. With this handy accessory, you can determine the 50 Ohm resonance frequency of antennas or you can adjust your antenna tuner for a 50 Ohm match without generating QRM

Portable Magnetic Loop Antenna Version 2 - A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres. For its size, the performance of the antenna always astounds me, although it is never going to replace a Yagi

Homebrew Balun Case - Balun case construction, tipically to host toroid cores. Size of case depends on power to handle. By DL5DBM

The Bazooka Antenna - Notes on bazooka antennas by Katunk: a portable field antenna, sometimes called the double bazooka or a coaxial antenna.

Antenna Feed Lines for Portable Use - Why twinlead isn't necessarily a low loss feed line.

Antenna Transmission Line Power Splitters - Several ways of splitting power to feed two like (50 ohm terminal impedance) antennas.

Rockloop Antenna @dl1gsj - A magnetic loop made just of wire. Suitable for portable usage and for QRP operations.

The M1IOS Wonder Whip Priority listing - A portable HF/VHF/UHF antenna and autotuner featured in "RadCom" June 2006.

RMS power - How it's misused and misunderstood, and why it's not useful.

Sunlight Energy Systems - Sunlight Energy Systems provides charge solar controllers and power supply products for amateur radio applications and solar panels usage

Bear Electronics Amplifiers - Manufacturer of big power amplifiers

SPE Amplifiers - SPE Makers of RF power amplifiers like Expert 1K-FA Expert 2K-FA

Impulse Electronics - Power connectors, power cables, coax cables, wires, batteries fuses and holders and tools

Anderson Power Products - Electrical power connectors

Saratoga ham radio products - Saratogaham.com brings you the latest product news and information about saratoga amateur radio products, Power meters, power panels and PSK radio to pc interfaces

Mayberrys power equipment - Outdoor power equipment, reseller of Honda Generators

Watts Unlimited - Engineering Solutions for Unique Problems. Manufacturer of high Voltage, high Current, high Power Power Supply

Wilderness Radio - The only source for kits aimed specifically at the outdoor QRP enthusiast. These kits, field-tested by members of the NorCal QRP Club, represent the state of the art in portability, low power consumption, high performance, and flexibility.

Jetstream - Antennas, base mobile scanner and vhf antenna, coax cables, coax switch, Lightning Arrestor, mounts, power supply, speakers and wattmeters

Memphis Amateur Electronics, Inc. - New and used ham radio equipment supplier. we carry hundreds of ham radio products including amateur radios from alinco, icom, kenwood, and yaesu, plus ham radio products from mfj, ldg, diamond antennas, hustler, ameritron, astron power supplies, and books .

Build An Audio Speech Processor - When one operates at low power on SSB, speech processing becomes almost essential to get through the QRM. The circuit is a low cost speech processor that will perform well with a minimum of construction effort.

10 Amp 13.8 Volt Power Supply - Sometimes amateurs like to home-brew their power supplies instead of purchasing one off the shelf at any of the major ham radio retail dealers.

5 Watt 40 Meters transmitter - This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.

Low-Power Transceiver Kits You Can Build - A Comprehensive roundup of the most popular QRP transceiver kits on the market in recent years in PDF format

9cm transverter - Designed for portable operation, it runs on 12v, and has an OCXO-based local oscillator.