echolink schematic

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

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

EchoIRLP - The goal is sharing technical information regarding IRLP and EchoLink network inter-operability.

Transceiver to pc interface for echolink - with a hardware DTMF detector and galvanic isolation designed for SVXlink based Echolink gateway

EchoLink Interface - Easily build with about 10 USD in parts from Radio Shack. Should work with any radio by K3MK

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

ON6AB's Kenwood TS570 pages - These pages are entirely devoted to the Kenwood TS570 series Transceivers. Specifications & Brochure, Pictures, Schematics, Reviews, Manual and Modifications.

DB37 FT-450 Cable - Schematic for Data, power, CAT, Key and Mic connection interface cable

DB15 FT-450 Cable - Schematic for Data CAT Power and Key cable interface for the Yaesu FT-450

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

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

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

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

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

7N3WVM Regen Receiver - Regenerative short wave radio schematic

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

PSK31 interface - Radio to soundcard schematic interface by VK6PG

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