portable qrp

HF Helical Whip Calculator - Build your own HF helical whip antenna for mobile or portable operation

Low-Cost dipole for QRP - Here’s an economical dipole for simple QRP HF homebrew rigs.

Low-cost half wave Dipole for HF QRP rigs - An economical dipole for simple QRP HF homebrew rigs

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

Portable Antennas for 2 m and 70 cm - Comparing SWR of vertical HT antennas for VHF and UHF

Portable Dish Antenna - Homemade portable dish antenna for 13 cm band

Appalachian Trail Award - This award program is to promote hiking on the Appalachian Trail with your QRP rigs

SOTA & QRP - Italian QRP site dedicated to SOTA activities

Roger G3XBM's Amateur Radio Blog - Simple QRP projects, 10m, 6m, WSPR beaconing, sub-9kHz and other random stuff

IV3XNF Luigi - Web site di iv3xnf, include some technical articles and QRP Pages

Baldor Generators - Baldor Generators offers a complete line of portable, standby, prime power and peak-shaving generators in the industry from 3 – 2,000 kW in gasoline, LP, natural gas or diesel.

Cross Country Wireless SDR Receiver  ^updated - SDR Receiver a compact high performance HF software defined radio receiver designed to be used in fixed or portable stations. Version 2 of the receiver is now available. It now has an RF pre-amplifier using a power MOSFET and other revisions to improve it's performance both as a stand alone receiver and as an IF panadaptor with HF and VHF transceivers.

SDR Cube - A self-contained and portable SDR Transceiver using a Softrock front end and embedded Digital Signal Processing ... No PC required!

IN3ECI - QRP Operations - Italian station operating mostly in QRP Mode, contain some interesting QRP projects for portable antennas and antenna mounts.

QRPSPOTS.com - QRP Spots, brought To You By The Four State QRP Group

Elecraft K2 Owners Database - The K2/K1 Online Database has been created to allow Elecraft Owners to post information about themselves and their K2/K1 units

Triode & Tetrode boards - A lot of good things, not for QRP fans.

JBOT QRP Linear Amplifier - An SSB linear amplifier made from Just a Bunch of Transistors

Eneloop batteries for QRP - Sanyo Eneloop rechargeable AA batteries. For QRP purposes, these batteries are great as a 10-cell pack

The Milli Beacon - This page describes an cheap RF signal source, a portable micro beacon, using a low cost temperature controlled crystal oscillator

MFJ Cub QRP transceiver kit - Building the MFJ Cub QRP transceiver kit for 20 meters band by G4ILO

20m CW QRP Transceiver - The direct-conversion receiver uses an audio-based automatic gain control, an LC tone filter, and a 100-kHz crystal for frequency alignment. The same VFO is used for transmitting and receiving by DC1YB

40 meters QRP CW RTX Priority listing - This is the schematic of asolid-state 7 MHz QRP CW transmitter by VU2NAN

30 m Band Direct Conversion Receiver - The direct conversion receiver described consists of only a bandpass filter, mixer IC, VFO and audio filter. With only 22 parts, this simple circuit should take a few hours at the weekend to construct.

A Simple QRP Transverter for 4m (70MHz) - Transverter for 70MHz, a project by G3XBM