One more ADC module
It will be used for the second transceiver. It has pretty good characteristics now. Around 92-94dbc IMD3 and sensivity around -137dbm (still
Little tuned bias on wolf RU4PN qrp unit
50db ATT, 14.1Mhz ~30dbc, 36dbc PEP
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.
Finishing IR station controller
Firmware by watashi_sv.
Amplifier case — day 3
Big box SDR temperatures
ADC board: QMTech board: XVTR: 5v stab: ADC:
LTC2208 new board + Qmtech board power consumption
5V bus