113 Wickerberry Lane, Madison, AL 35756: [email protected] An Arduino Controlled GPS Corrected VFO A VFO that provides 1 to 112.5 MHz signals on two independent outputs. Use …

The front end and VFO are presented in Fig 2. I initially used a VFO variable capacitor with a vernier drive mechanism. Problems occurred with the mounting, however. The VFO was …

Considering the size of most HF ham bands, a VFO needs a tuning range of at least 0.5 MHz. The higher the basic frequency of the VFO, the wider the tuning range you can achieve. ARRL …

The VFO The oscillator (Fig 47) is a good exam- ple of the principle that a circuit need not be complex to work well, if properly designed. This simple Hartley circuit ex- hibits less than 200 …

/* Arduino Controlled GPS Corrected Dual Output Si5351A VFO A VFO project that uses an Arduino Uno or Nano to control a SI5351A clock generator breakout board. The VFO may be …

This sketch implements a three band VFO using the SI5351a; breakout board from Etherkit. Features include: Operation on a single frequency at a time, push button selected; Frequency …

2008年7月14日 · What follows here are descriptions of three different VFO circuits. The FET, a transistor low-noise design, and the NE602 used as a VFO. I have built and used them all …

VFO / Display / SWR Measurement Input Gordon Gibby KX4Z April 2018 INTRODUCTION The groundbreaking bitx-series of extraordinarily inexpensive low-power HF single sideband and …

Over the years, many amateurs have copied PAøKSB's method and in Februari 1996 Klaas published an improved version in ARRL's QEX magazine; also published in the Dutch …

Arduino code and circuit board files for "An Arduino Controlled GPS Corrected VFO." Gene Marcus: W3PM / GM4YRE: 7x15_Severns.zip: 7/2015 "Radiation and Ground Loss …