Hi guys,
What is the standing wave ratio for LimeSDR USB type-A? Where could I find those specs? Please help. Thank you :slight_smile:

My guess is that the various ports are in the 50-70 Ohm range, making the SWR vary between 1:1 to 1.5:1.

Thank you :slight_smile: Do you know if there is official documentation that shows those spec?

I would guess that a QRP (Low Power) SWR meter would be needed. Along with different load resistances.


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Presumably the LMS7002M chip datasheet has S1-parameter data for the different ports on the chip.

Usually when this type of question is asked, there’s some reason behind it.

Do you believe that the ports on the board are wildly-different from 50-80 ohms, perhaps only in
certain cases?


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