greatscottgadgets / urti-mainboard

Mainboard of URTI, the Universal Radio Test Instrument
https://greatscottgadgets.com/urti/
CERN Open Hardware Licence Version 2 - Permissive
24 stars 3 forks source link

Analog supply regulator does not support sufficient current #3

Open mossmann opened 5 months ago

mossmann commented 5 months ago

3V3A regulator U24 can shut down due to an over-current or over-temperature condition when operating the radio in full-duplex mode.

As a workaround, operate in half-duplex mode and turn on either the TX power switch or the RX power switch but not both.

Full-duplex mode appears to work if the front-end mixers are disabled, so full-duplex operation is possible over a limited frequency range.