20K-220MHz Superheterodyne Receiver SDR HAM QRP Transceiver RF Generator VFO Radio Debugger

Features:
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 128x64 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.