A small hardware device for transmitting WSPR messages based on the SI5351 IC which uses GPS for transmission time synchronization and automatic QTH locator calculation.
Added a new PCB version that uses the SN74ACT244PWR buffer amplifier instead of the BS170 single field-effect transistor amplifier.
A section of the PCB for installing the buffer amplifier:
Ready-made device:
BOM update
Information about used components (WSPR-beacon PCB 1.0 & WSPR-beacon PCB 2.0) has been changed. Added actual ordering data for SMA connectors (LCSC), toggle switch (LCSC) and FT37-43 ferrite ring (RF Microwawe).
Documentation changes
Added references to different PCB versions to the main README file of the project.
Additional links to the resources used have been added.
Updating the device PCB
Added a new PCB version that uses the SN74ACT244PWR buffer amplifier instead of the BS170 single field-effect transistor amplifier.
A section of the PCB for installing the buffer amplifier:
Ready-made device:
BOM update
Information about used components (WSPR-beacon PCB 1.0 & WSPR-beacon PCB 2.0) has been changed. Added actual ordering data for SMA connectors (LCSC), toggle switch (LCSC) and FT37-43 ferrite ring (RF Microwawe).
Documentation changes
Added references to different PCB versions to the main README file of the project. Additional links to the resources used have been added.