qrp receiver

80 Meter Pizza Pan Antenna - This is a resonant, half-wave, vertical antenna. It takes up little space in the back yard, was designed for operation on a single frequency 80 meter PSK net, and is reasonably inexpensive to construct by Chuck Hines, K6QKL

QRP Magnetic longwire balun with VHF-splitter - This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.

Water tuned loop antenna - A QRP 900 grams hydraulic tuned small magnetic loop antenna by PY1AHD Alex.

A Portable Antenna Matching Unit - A small HF antenna tuner project for qrp operations. Includes circuit diagrams pictures and test results by GW4ALG

The Half Square vs the Loop Skywire - by Jim Stafford, W4QO appeared in QRP Quarterly, Fall, 2006

EB5AGV's Boatanchors Schematics page - Hammarlund HQ-129X Receiver, Heathkit C-3 Condenser Checker, Heathkit QF-1 Q-multiplier and more

Build a 10 Meter Beacon - How to build a beacon keyer by Tom Sevart N2UHC

K0KP 10 Meter QRPp Beacon - At 28.2125 MHZ here's "the Little Beacon that could!" This little homebrew 500 Milliwatt QRPp beacon has been heard around the world

IK1ZYW 10m QRSS QRPP Beacon - Describes IK1ZYW 10m beacon running QRSS

VU2IIA -Ham Radio & NOAA - Ham Radio & NOAA Apt Weather Satellite blog. All weather satellite NOAA APT images are decoded with homebrew receiver. Setup using homebrew Turnstile Cross Dipole antenna, P-3 500MHZ PC with WIN-XP & WXTOIMG program.

QRSS/QRPp Network 28.322 MHz - This blog is about the QRSS QRP beacon network transmitting at 28.322 Mhz managed by IK1ZYW

North Georgia QRP Club - Small, but growing, group of amateur radio enthusiasts, most of whom are within 90 miles (and more) of Atlanta

WebSDR on 20m, 40m and 80m  ^pop - On this page you can listen to and control a short-wave receiver located at the amateur radio club ETGD at the University of Twente. In contrast to other web-controlled receivers, this receiver can be tuned by multiple users simultaneously, thanks to the use of Software-Defined Radio

Ramsey Electronics - QRP and Electronic Kits manufacturer

KD1JV Designs - QRP Kits and Projects for the low power Amateur Radio enthusiast

6m SSB & CW QRP transceiver - Block diagram, schematics pcb layout and pictures of a CW QRP transceiver for 50 Mhz by S57NAN

Radio Frequency Beacon Finder - This project is a radio frequency receiver that will help the user the trace the direction and distance of transmitter beacon(s) operating at 433MHz frequency by Cornell Univerity

Dan's Small parts and kits - Small parts and kits for the QRPer

OH2FFY Ham radio and shortwave listening - QRP Homebrew Ham Operator and constructor in Finland. Also works on the CB2HAM radio conversions and is into shortwave listening

Amplifier for 15 and 17 meter band - The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU

The Super Sixty transceiver - The 'Super-Sixty' a 5 MHz 60 meters band transmitter & receive converter

80 meters cw transceiver - The home made transceiver covers 3.5 to 3.6 MHz and is CW only by GW4ALG

QRP Transceiver for less than $10 - Building a functioning transceiver for less than $10 by AL7FS

80m CW QRP transmitter - 80 metre ceramic resonator VXO CW Transmitter by VK1PK

Noise Figure Meter with a Spectrum Analyser - A relatively simple automatic Noise Figure (NF) meter was developed which is using a spectrum analyser as the receiver and logarithmic power detector.