Little tuned bias on wolf RU4PN qrp unit
50db ATT, 14.1Mhz ~30dbc, 36dbc PEP
Метка: hf
Assembling new big LPF
And cooler for flatpack he. https://www.youtube.com/shorts/pD0XqEJSAwA
Building amplifier — lost count :)
Started building my own new amplifier controller (STM32F405RGT6 backend + esp32 s3 frontend) with blackjack and hookers.
Amplifier case — day 3
Big box SDR temperatures
ADC board: QMTech board: XVTR: 5v stab: ADC:
Amplifier case — day 2
Finally got the amplifier case
SDRs work
SDR work…
SDRs work
Antminer version almost ready. Need to cut circle for amplifier fan, do some cosmetics, screw on MOSFET board for LPF, screw on