I only wanted two additional informations about the RSP1A who I use with pleasure for several months.
The first : it is possible to enable the bias-t in Linux with a terminal command ? (I use python scripts without graphic interface).
The second : I have bought a Nooelec LaNA who could be powered through bias tee (3.3V-5V), USB, or DC power. With the USB power I have a dc voltage (5v) on the output off the LNA and therefore possibly in opposite way on the Sdrplay antenna connector.
In that situation I would like to know (before connect) if there is a risk to damage the Sdrplay (of course the bias-T will not be enable = first question).
Thank you and have a good day.