Genesis G59 Software Defined Radio Transceiver
#software defined radio
#transceiver
#RF
#wireless communication
#radio
#SDR
#signal processing
#broadcast
#receiver
#transmitter
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5 W ATV TRANSCEIVER
The transmitter schematic, which is a component of the transceiver, can be found in the entry titled S-W ATV Transmitter for 440 MHz, Figure 5-1. The downconverter section is illustrated here. This transmitter includes both video and audio sections, producing...
QRP CW TRANSCEIVER
This is a 3-W, single-circuit board, VFO-controlled CW transceiver for 40 or 30 meters, featuring a direct-conversion receiver with audio filtering, Receiver Incremental Tuning (RIT), and speaker level audio volume. The transmit frequency is generated by Q1 and its associated...
MINI_ATV_TRANSMITTER
This low-power NTSC video and sound transmitter is suitable for amateur radio, video handheld transceivers, remote control applications, and surveillance purposes. It features a crystal oscillator-multiplier and a power amplifier. Video modulation is achieved through a three-transistor series modulator. The...
The R2 Single Sideband Direct Conversion Receiver
The old common-base audio preamp, which has a noise figure of 5 dB, is a clear candidate for improvement in noise performance. A common-emitter configuration with shunt feedback provides an input resistance of 50 ohms, which is preferred by the...
Armstrong Oscillator
The Armstrong oscillator is utilized to generate a sine-wave output with a constant amplitude and fairly stable frequency within the RF range. It is commonly employed as a local oscillator in receivers, as a source in signal generators, and as...
Remote Control Transmitter Circuit
This transmitter can be utilized for multiple applications. An INS8048L microprocessor produces various codes based on keypad inputs. These codes are modulated onto a 40-kHz carrier frequency. Additionally, Q1 drives infrared LEDs LED1 and LED2.
The transmitter circuit primarily consists of...
Ensemble RX Builders
This kit is the earlier, now retired Ensemble RX version. These instructions are provided for those who possess and might have delayed building that version of the Ensemble RX kit. The latest version is the Ensemble RX II kit. The...
80 Watt stereo transmitter
This transmitter was designed from the ground up to provide very high sound quality, coupled with excellent frequency stability, reliability, etc. It can be used as a standalone transmitter to serve a medium-sized town, or as an exciter to drive...
Interpolating Scanner Circuit
This design is for an interpolating scanner, a circuit featuring multiple signal inputs, a control voltage input, and a signal output. The output selectively transitions between inputs, smoothly fading from one to the next as the control voltage increases. A...