# Selecting RF port on LimeSDR

**URL:** <https://discourse.myriadrf.org/t/selecting-rf-port-on-limesdr/868>\
**Category:** LimeSDR\
**Created:** [4 March 2017 17:33 UTC](https://discourse.myriadrf.org/t/selecting-rf-port-on-limesdr/868 "2017-03-04T17:33:47Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![joshblum](https://yyz2.discourse-cdn.com/flex034/user_avatar/discourse.myriadrf.org/joshblum/32/18_2.png) [@joshblum](https://discourse.myriadrf.org/u/joshblum)\
**Post date:** [5 March 2017 05:52 UTC](https://discourse.myriadrf.org/t/selecting-rf-port-on-limesdr/868/5 "2017-03-05T05:52:36Z")

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Also see `SoapySDRUtil --probe="driver=lime"` to get the names of the ports. In this case, the names are based off of the LMS7, not the silkscreen, These are the options

- Rx Antennas: LNAH, LNAL, LNAW, LB1, LB2
- Tx Antennas: BAND1, BAND2

You will see the two tx antenna options for each channel and the 3 rx options for each channel. The loopbacks are just internal to the LMS7. Mostly for debug, but they are there too as a useful options.

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