DDS Low Frequency Signal Generator Sine Square Sawtooth Wave and dual-tone mode

Description

assembled unit.
This local frequency and dual-tone generator designed and developed for easy adjustment of Amateur radio equipment (Receivers/Transceivers).
The device’s core is a microcontroller ATTiny2313 which generating a signal by direct digital synthesis method. Also, there are encoder with “Step” button, one more button “Mode” and high-quality liquid crystal display. Based on the compact size of the product and low consumption– its applicability in everyday life Amateur radio knows no bounds!
Technical parameters
Frequency range: 10Hz – 20kHz.
• Rotary encoder tuning
• Selectable tuning steps: 10Hz or 100Hz
Output RF voltage: 0 – 2.5 V (regulates by variable resistor)
Working modes and output waveforms:
Sine wave,
Sawtooth wave,
Dual tone mode,
Square wave
KIT includes: assembled PCB, encoder, potentiometer.