local oscillator

5 links

SDR-Kits.net - USB-Controlled Synthesizer for Softrock RXTX and Local Oscillator Applications
[ Hits: 3135 | Votes: 5 | Rating: 3.8 ]

Specan Spectrum analyzer - The Specan is actually a very simple but robustly built receiver. it is, in essence, a double conversion superhet receiver with 112 Mhz and 12 Mhz Intermediate frequencies. The first mixer uses an Si570 as the local oscillator. The Ardiuno that controls the Specan is a very flexible microcontroller board that you can program in simple C language
[ Hits: 85 | Votes: 1 | Rating: 9 ]

A 6M Transverter - Build a transverter based on a 6M receive converter. A 32MHz TTL oscillator is used as the local oscillator for both transmitting and receiving. RX/TX switching is handled by three SPDT relays.
[ Hits: 4833 | Votes: 2 | Rating: 10 ]
9cm transverter - Designed for portable operation, it runs on 12v, and has an OCXO-based local oscillator.
[ Hits: 322 | Votes: 0 | Rating: 0 ]
2m to 70cm Transverter Circuit - A 70cm / 432 MHz Transverter Project transverter circuit is an electronic device that converts a radio signal from the 2 meter to the 70 centimeter band and vice versa, allowing a single transmitter/receiver to be used for both bands. It consists of an IF stage, local oscillator, frequency multiplier, and amplifier. The circuit must be designed for minimal signal loss, noise and intermodulation distortion.
[ Hits: 81 | Votes: 0 | Rating: 0 ]