# LimeSDR Multiple Channel (2 Signals Tx/Rx)

**URL:** <https://discourse.myriadrf.org/t/limesdr-multiple-channel-2-signals-tx-rx/6834>\
**Category:** LimeSDR\
**Created:** [7 January 2021 16:51 UTC](https://discourse.myriadrf.org/t/limesdr-multiple-channel-2-signals-tx-rx/6834 "2021-01-07T16:51:51Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![andremartins4](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@andremartins4](https://discourse.myriadrf.org/u/andremartins4)\
**Post date:** [7 January 2021 16:51 UTC](https://discourse.myriadrf.org/t/limesdr-multiple-channel-2-signals-tx-rx/6834/1 "2021-01-07T16:51:51Z")

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Hello everyone

Has anyone successfully tried to transmit/receive I and Q signals on two different channels? Or even just two different signals? I have been exploring this matter for quite some time already, but can’t seem to find the solution.

My problem lies on the hardware I will connect on the LimeSDR Tx/Rx, an up/down converter to 60Ghz frequencies. Here’s the diagram, it only accepts I and Q signals seperated has input/output, and that I can do on GnuRadio, the only thing I can’t do is to transmit/receive them at the same time on the LimeSDR. GnuRadio is the framework I have been using, but I can look in other directions if more capable.

 ![up_down converter](https://canada1.discourse-cdn.com/flex034/uploads/myriadrf/original/2X/0/0127b7ac92012ac3b56edc8be4e7e6448ecb8c36.png)  
Thank you.