https://www.facebook.com/groups/uSDXQrp

uSDX is a simple and experimental (Class-E driven) SSB and CW SDR transceiver. It can be used to make QRP SSB contacts, or (in combination with a PC) used for the digital modes such as FT8, JS8, FT4. It can be fully-continuous tuned through bands 80m-10m in the LSB/USB-modes with a 2400Hz bandwidth has up to 5W PEP SSB output and features a software-based full Break-In VOX for fast RX/TX switching in voice and digital operations.

For information from here:

https://github.com/threeme3/usdx

Design note:

This project is based in Quark Qrp made by my friend and colleague -UD3SBV-

 Павел Пискунов from Russia.

https://swling.ru/2022/07/26/transiver-usdx-quark/

PCB has optiond for LCD display 1602B/A & OLED

Audio amplifier is courtesy of my friend & colleague Somnath Dey from India.

For any concern

please let me know,

wj6c@arrl.net

Qrv's

73

JuanCarlos

WJ6C/KU0BA/exCO6BG

www.frcuba.com

note:

PCBWay support engineers send me image 1 which I show you along with the other PCB images at the beginning.

They asked me if the Tp (test point) was an error on the top layer of the PCB.

These pads on the top layer only are for "measurement", known as Tp or Test Point.

They are not errors...