pg 3j schematic

Homemade screwdriver antenna - Pictures and schematic to homebrew a screwdriver antenna by PH0RMH in Dutch

K4UPG Blog - Adventures in QRP Portable Ops

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

ATV 432 MHz transmitter - ATV 432 MHz AM transmitter schematic

80m fox hunting receiver - Schematic anc PCB for a fox hunting receiver for 80 meters band

The Doppler Shift - A close up of Doppler Shift, a phenomenon which is commonly observed by the lay person, yet still confuses many amateur satellite operators.

FT-817 DC Circuit Protection - A schematic for a DX circuit protection for the Yaesu FT-817, provides protection from the external power supply overvoltage by DL2LTO in german

ScannerCast - Lets you listen to your scanner across your own network, or via the internet. Shoutcast/ICEcast compatible broadcasting for Uniden and GRE scanners. Broadcast your audio from your PC.

NetCon - A netlist converter for moving schematic and PC board files from OrCAD/PADS to ExpressPCB format.

7 Watt HF Amplifier - An RF power amplifier, providing 7 Watts output in HF bands, schematic by ON6MU

2m and 6m Power Amp - Duoband PA for 6m and 2m by T92T abd YU1AW schematic

VHF Power amplifier for 6m and 2m - YU1AW power amplifier schematic for 50 MHz and 144 MHz made with 1xGI7V

Mic Pre Ampllifier - A microphone preamplifier schematic for hand-helds by ON6MU

CAT Interface - CAT (Computer Aided Tuning) connects computers with ham radio. Yaesu FT-890 intercace and ICOM IC-Q7 schematics by DK7IN

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

4AMP 18v power supply - Schematic of a 4 AMP / 18v regulated power supply by ON6MU

2A Power Supply - Schematic of a regulated 0-24v 2A Power Supply

A 40 meter QRP Transceiver - A 7 MHz homebrewed QRP transceiver project with full schematic and detailed pictures by DL5NEG

KPG4 Kkenwood Programming cable - Kenwood Programming cable schematic by N5XNQ

Kenwood KPG-4 Cable - Kenwood KPG-4 Cable schematic

AR-8000 programming cable - Schematic for AR-8000 programming cable

7N3WVM Regen Receiver - Regenerative short wave radio schematic

AA5TB regenerative receiver - Project and schematic of a regenrative receiver by AA5TB

Kenwood TM-441 Modification  ^updated - 9600 Baud modification on the Kenwood TM441 by ON6MU

HF Antenna Analyzer - 3 to 30 Mhz antenna analyzer schematic by YO3DAC / VA3IUL