qrp wattmeter

Half Wave Portable Antenna - Steve Yates article on a portable half wave antenna for field day operations

QRP Antenna Tuner for 20 m - A small antenna tuner for 14 MHz

VE9QRP Blog - Projects in ham radio, programming, and robotics. Specializing in amateur satellite operations.

N0EQ - QRP Portable, Working the World - Desert remote portable QRP operations - n0eq Craig Lumpy Lemke

Telepost - Digital Vector Wattmeters, Dummy loads, software defined panadapter systems, SteppIR Tuning Relay, Digital SWR meters, LP-Pan Pan Adapter IQ Decoder for SDR based panadapter system

Wilderness Radio - Source for kits aimed specifically at the outdoor QRP enthusiast.

QROlle, 6 Band QRP-rig - QROlle QRP-rig. 6 Band Shortwave rig with SMD:s. 160, 80, 40, 30, 20, 17 meters SSB/CW QRP-rig. All documentation in English

An Urban Desert Portable QRP Station - Urban desert ham radio ops, amateur radio station n0eq

Modifications for the Kenwood TS-50 - Collection of TS-50 mods, LCD display dark, TS50<-->AT50 communication, TS-50 Power Mod for QRP, TX Coverage mod TS-50, CAT control for TS-50S

TS-50 power mod - Kenwood TS-50 power mod for QRP by WA6ERB

GAP Antenna Overview - Comments received from QRP-L members concerning their experiences with GAP antennas.

Kits and Parts dot Com - Supplying Toroids, Electronic Parts and Kits to Engineers, Schools and Hobbyists. Capacitos, filters, inductors, qrp products

Low Pass Audio Filter - 440 Hertz peaked low pass audio filter experiments

Electronic calculator - Some simple electronics calculator in javascript

Bandpass and I.F. Filters - On this page a popcorn highpass filter, some inductors and their Q , double tuned bandpass filters and simple Cohn Crystal ladder IF filters are presented.

SSB 75 Meter Transceiver - QRP transceiver for 75 meters band by WA7JHZ

LY3LP laboratory - QRP DIY and more

QRP Wattmeter - G4FON homebrewed QRP Wattmeter

Five by Twenty - A 5 tubes SSB QRP transceiver for 20m ham radio band

A 40 meter SSB QRP transceiver - This transceiver was conceived as a power-efficient, small, lighweight unit to be carried in the backpack, along with antenna and battery.

QRP transceiver for 7 Mhz - An optimized QRP transceiver for 40 meters band

Build a Tuna-Tin 2 - Original Tuna-Tin 2 QRP CW transceiver article by W1CER

DSB/CW QRP rig for 20 and 40 mt. - An experimental DSB/CW QRP rig for 20 and 40 meter bands

QRP AM CW transmitter - A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator

NB6M 10 Homebrew Receiver and Keying - Schematic of a homebrew receiver and keying