FT8QRP_IRF530

** Warning : This project is ongoing and not finalized yet

More details here : https://f5npv.wordpress.com/homebrew-ft8qrp-afp-fsk-trx/

 * ==============================================

 * F5NPV FT8QRP Transceiver

 * CAT is available for Digital mode 

 * No Rotary encoder since the TRX is controlled by CAT and dedicated for DIgital modes

 * =============================================

 * 

 * FT8QRP credits and initial experimentation  : http://elektronik-labor.de/HF/FT8QRP.html

 * First and initial PCB from UN7FGO : https://easyeda.com/UN7FGO/QRP_FT8_ARDUINO_TRX

 * Sketch experimention from JE1RAV : https://github.com/je1rav/QP-7C 

 * F5NPV Experimentation , input ,addon and mods :

 * The Schematic , PCB and sketch are including : LPF switching , LCD display , opto relay control, iéc with multiple device

 * Biasing for the IRF530 or/and BS170, Output Transformer, TX and RX management with a relay and sequencer  

 * On going development : 

 * SWR/PWR display and monitoring  

 */

This is a new winter project and the achievement will be a tiny FT8 QRP TRX using AFP/FSK modulation which is compliant with FT8 , WSPR and probably RTTY.

It is a 4 bands 5W FT8, FT4, JS8CALL, WSPR, and RTTY modes

This an on-going experimentation and details can be retrieve from here : https://easyeda.com/F5NPV/qrp_ft8_arduino_trx_v2

• This TX is including AFP FSK Capabilities compliant with FT8, WSPR , Rtty and many more.
• This is not a DSB transceiver and only a sideband is used (USB for instance)
• CAT is available
• No Rotary encoder since the TRX is controlled by CAT and dedicated for DIgital modes
• ===================Credits==========================
  • FT8QRP credits and initial experimentation : http://elektronik-labor.de/HF/FT8QRP.html
  • First and initial PCB from UN7FGO : https://easyeda.com/UN7FGO/QRP_FT8_ARDUINO_TRX
  • Sketch experimention from JE1RAV : https://github.com/je1rav/QP-7C
• F5NPV Experimentation , input ,addon and mods :
  • The Schematic , PCB and sketch are including : LPF switching , LCD display , opto relay control, i2c sharing the LCD and SI5351
  • Biasing for the IRF530 or/and BS170, Output Transformer, TX and RX management with a relay and sequencer
  • Customized Arduino sketch
• On going development : SWR/PWR display and monitoring