10KHz to 220MHz 20 Bands Superheterodyne Receiver SDR Transceiver RF Generator VFO Radio Debugger

This is a VFO (Variable Frequency Oscillator) project that can be used for DIY self-made devices such as superheterodyne receivers, DCR transceivers, SDR transceivers or Ham QRP transceivers. It also has bar graph indicators for signal strength (S-Meter) and 20 Band presets. And can also be used as an RF/clock generator.

• It has 10kHz to 220MHz working ranges
• 0.5PPM high precise Tcxo clock, the frequency is more accurate
• Tuning step of 1Hz, 10Hz, 1kHz, 5kHz, 10kHz and 1MHz
• Intermediate frequency (IF) offset (+ or -) is adjustable
• 20 band presets (shortcuts) for BCB and HAM frequencies
• Equipped with generator function mode
• RX/TX mode selector for Homebrew QRP transceivers
• The bar graph of the signal meter through the analogs input (ADC)
• It can be used as a local oscillator on Homebrew radio receivers (such as superheterodyne, SDR, direct conversion and Homebrew QRP transceivers)
• Can be used as a simple RF/clock generator for calibration reference or clock generation
• And also can be used as a common 128×64 I2C OLED SSD1306 display and Si5351 module
• I2C data transmission, only need 2 lines it can be connected to the display, with high stability and accuracy of frequency generation

Specifications:

• Name: SDR Transceiver
• Item size: 90 * 100 * 40mm / 3.54 * 3.94 * 1.57in
• Item weight: 200g / 7.05ounce