Osmocom sink block - Gain values?

[antyama]

I know the bladeRFs 2.0 xA4 micro max CW transmit power is +8dBm, but what does this translate to the Osmocom Sink block? I can set RF/IF/BB gain seperately. At first I assumed everything at 0 is already the highest but testing via TX1 to RX1 via a 30dB attenuator, I could still see an increase in transmit all the way to 66dB in RF.

Are BB and IF gains relevant at all? Further, does RF gain 0 in the Osmocom Sink block correspond to -58dBm then? so to transmit the max of +8dBm, I would choose RF at 66 in the block?

I couldn't really find any answer in the osmocom documentation since it only seems to reference the bladerRF 1.0

[erfavorite]

To reach around +8 dBm, you’ll need to raise the RF gain (e.g., near 60–66 on your setup), but the exact value depends on calibration.

[antyama]

To reach around +8 dBm, you’ll need to raise the RF gain (e.g., near 60–66 on your setup), but the exact value depends on calibration.

Thank you! Another question that is not ontopic but would be helpful, does the bladerf 2.0 have a lower limit to pulse length? I have a vector source generating a 13us pulse at 75 MHz after around 50ms of prepulsebuffer and I'm not completely sure the device supports this short of a pulse. I at least do see a signal around 20us at my RX