ttl converter

Compact Right Angle 40 Meter Antenna - Want to operate on 40 meters but only have a space a little over 16X16 ? Try this antenna.

40 Meter Bow Tie Antenna - Looking for a 40 meter antenna with good gain and take-off angle that fits in a little over 60 of horizontal space at a height of 25? This antenna is for you.

Postage Stamp 40 Meter Wire Dipole Antenna - Build yourself a postage stamp 40 meter wire dipole antenna that fits in a space a little over 20 wide and works reasonably well at low heights

Noolec  ^new - Software Defined Radio parts, RTL-SDR DVB-T USB Stick, cables, antennas, upconverters, leds delaer

MDSR - Modulator-Demodulator Software Radio A radio communication system where modulating and demodulating components are implemented using software on a personal computer or other embedded computing devices using by a converter.

ZL2PD CMOS Keyer - Two cheap CMOS ICs and a few transistors was all that was required to rebuild an elderly TTL automatic morse keyer into a low current lightweight battery powered iambic morse keyer.

QRP 20m ATU - A handy little QRP Antenna Tuner designed specifically for 20m, although it works fine up to 10m.

MDSR / SDR by VE3LNY - An SDR project, MDSR modulator-demodulator software radio, made using an inexpensive converter and a pc. MDSR has a transceiver and a receiver converters.

Opendous - Upconverter  ^new - Upconverter MF/HF Converter for Receivers. Converts signals in the MF and HF Bands to signals in the VHF Band. Intended for use in receiver applications with projects like RTL-SDR/SDR#/FunCube Dongle, or to listen to AM radio using an FM receiver.

RTLSDR Upconverters - comparison  ^new - Round-Up of different HF Upconverters for RTLSDR by KF7LZE

TV To Scope Converter - This project takes after the VGA-to-Scope converter by using composite video rather than VGA signals to create a display on an oscilloscope.

Building the Elecraft XV144 Transverter - Construction of 28 MHz to 144 MHz Transmitting and Receiving Converter by KP4MD