Ce projet a pour but d’etudier chaque block du concept radio uBITX de VU3JVX
Avec modification de la partie ampli bidirectionnel ( cf fin de document )
https://hackaday.io/project/20067-puzzle-radio-building-blocks
Modif Ampli
Partie Quartz BPF
Resultat au NANOVNA
Lien Documentation :
https://www.qsl.net/w2aew/youtube/crystal_measurements_nanovna.pdf
https://www.arrl.org/files/file/QEX_Next_Issue/Nov-Dec_2009/QEX_Nov-Dec_09_Feature.pdf
Partie BFO
Partie VFO
code : /* ————————————————————————- * * Name : ADF4351 Controled Board 35Mhz-4.4Ghz with 10Mhz OCXO Reference * Author : Stéphane HELAIEM – F4IRX * Date : july 12, 2025 * Purpose: ADF 4351 Synth * Versions: * 1.0 : ARDUINO NANO * 1.1a : Change to ESP32 C3 ( 3.3v…
ref : https://github.com/Ryushane/ADF4351-ESP32 https://github.com/dfannin/adf4351 code test : #include « ADF4351.h » #include <SPI.h> #define clock 4 #define data 6 #define LE 7 #define CE 10 ADF4351 adf4351(clock,data,LE,CE); // declares object PLL of type ADF4351 void setup() { Serial.begin(115200); adf4351.begin(); // ref =25Mhz freq :41Mhz adf4351.WriteRegister(0x00580005); // R5 adf4351.WriteRegister(0xEC81FC); // R4 adf4351.WriteRegister(0x000004B3);…
Ref : https://github.com/f4goh/pico_vband schema Code // SPDX-License-Identifier: MIT // // VBAND CW USB dongle based on a Pi Pico. // Also supports other key outputs for Vail and morsecode.me etc. // // Inspired from similar projects at: // https://github.com/sipsmi/vband_dongle/tree/main // https://github.com/mgiugliano/MorsePaddle2USB // https://github.com/nealey/vail-adapter // // There is also a PiPico circuit python implementation shown on…
