qrp wattmeter

K4UPG Blog - Adventures in QRP Portable Ops

The Austin QRP Club - The A QRP Club is a small group of Amateur Radio enthusiasts who enjoy building, operating and (mostly) talking about Low Power radio communications, equipment and systems.

VU2UKR HAM Radio Station - HAM Radio India Yagi Beam CW QRP SSB QUAD DX circuits sound card Transceiver Morse HF VHF Antenna Satellites Amateur Club Station Operators Licence Exam ASOC Guide Digital Mode Equipment Transmitter Experiments Project schematics Beacon dx HAMSAT VUSAT Satellite Emergency communication Information Homebrew QRP Kits

QRP 1:1 Current-type Balun for Portable Use - A ferrite-loaded coaxial RF choke which just happens to yield the same result as a 1:1 current balun

New England QRP Club - The New England QRP Club is where "The excitement is building...."

10 11 meters RF Power Amplifier - AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz)

QRP Power Meter and Dummy Load - In this article the schematic is of AA5TB QRP power meter and dummy (50 Ohm) load combination

A Simple CW Keying Interface - Functional, easy, and cheap, all good Ham Radio characteristics by Terry Fletcher, WA0ITP

QRP ARCI - WK4DS CW Paddles - Home-made CW paddle by WK4DS

OZ2CPU digital wattmeter - Plans and hex code for an RF wattmeter based on an Analog Devices AD8307 log amplifier.

Digital Wattmeter - 300nW to 30W - The digital wattmeter project was created for the purpose of measuring power in the range of 300nw to 30w.

KD1JV Digital SWR / Power Meter - This small, light weight digital SWR and power meter uses an Atmel AVR Butterfly demo board and a Stockton type directional coupler.

Automatic 1.8 – 60 MHz SWR/WATTmeter - A PIC16F876 based, automatic 1.8 – 60 MHz SWR/WATTmeter A project from Il Club Autocostruttori of the Padova ARI club Italy

DL4MEA Wattmeter - The DL4MEA Power Meter

QRP SWR Meter - SWR meter for low power output measurements, dedicated to QRP operations

QRP Z-Match - Small QRP Z-match project for max 10 W output by DL2LTO

Homebrew C-L-C QRP Antenna Tuner - This is a C-L-C type tuner with a reflected power indicator. Tuning is done for minimum reflected power.

QRP transmitter with VXO - This is a nice 1 W QRP transmitter that can be used in combination of one of the simple receivers.

30m CW-Transceiver - GM47: Simple 30m Band QRP CW-Transceiver

40 Meter QRP Transmitter - A simple 40 meter CW transmitter, it sports full break-in operation and 250 mW of output power.

40 meter QRP CW transceiver - Home made QRP CW transceiver for 7 MHz by JF10ZL

QRP Transceiver for 3.5 Mhz - A QRP transceiver for 80 meters band by W1FB

XBM80-2 An Experimental 80m CW Transceiver - This is an experimental CW transceiver for 80m, although the same idea will work on all HF bands

40 m Band Direct Conversion Receiver - Practical and usable direct conversion receiver for the 40 m CW band

Austin's Regen Receiver - QRP ARCI regenerative reveiver project