On 29/01/2025 05:38, emanuele.tolo...@intecs.it wrote:
Hi, I have a B200 mini that I use for monitoring purposes, and I need
to install it near an RF transmitter. I'm concerned about the maximum
input power the board can handle before it gets damaged.
I understand that the B200 mini has a +0 dBm input power limit.
However, does this limit apply only when the SDR is actively receiving
samples, or is it also relevant when the board is inactive (i.e., not
tuned to a specific frequency and not receiving samples)?
The reason I ask is that I could disable the B200 mini's reception
while the RF transmitter is active, as it doesn't transmit signals
continuously.
Thank you
Emanuele
Small-signal amplifiers are sensitive to damage, even when powered-off
(the details matter, but in general, this is the case).
If the field strengths are going to be high enough that you're worried
about this, the best approach is to use an RF relay that
switches the RX input to a matched terminator (or even a short
circuit) when the transmitter is operating.
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