pythongnugnuradiognuradio-companionusrp

RuntimeError: LookupError: IndexError: multi_usrp: RX channel 1 out of range for configured RX frontends - GNU Radio

I am trying to receive a signal on two RX channels using the USRP B205mini. I am trying achieve this using GNU Radio. However, after running the code, I get the following error:

RuntimeError: LookupError: IndexError: multi_usrp: RX channel 1 out of range for configured RX frontends

I have tried to look on the internet, but I have not found a proper solution yet.

I tried to test the two channels that I am using - RX2 and TX/RX using two UHD USRP Source blocks (independently of each other), and they work.

When I try to test them together, using a single UHD USRP block, I get the following error: "RuntimeError: LookupError: IndexError: multi_usrp: RX channel 1 out of range for configured RX frontends - GNU Radio".

This is what I am trying to do when I get the error

Block Specification

Block Specification 2

Solution

  • The B205-mini only has a single RX channel.

    So, trying to get a second channel must fail.