# Set SX frequency failed

**URL:** <https://discourse.myriadrf.org/t/set-sx-frequency-failed/4444>\
**Category:** LimeSDR\
**Created:** [27 March 2019 02:29 UTC](https://discourse.myriadrf.org/t/set-sx-frequency-failed/4444 "2019-03-27T02:29:53Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mauro](https://avatars.discourse-cdn.com/v4/letter/m/45deac/32.png) [@mauro](https://discourse.myriadrf.org/u/mauro)\
**Post date:** [27 March 2019 02:29 UTC](https://discourse.myriadrf.org/t/set-sx-frequency-failed/4444/1 "2019-03-27T02:29:53Z")

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Hi,

I made a program using the Lime Suite API that sweeps a range of TX frequencies and reads both RX channels. For some specific frequencies I am getting this error and the program ends before completing the frequency sweep. I tried to set these specific frequencies using the GUI and I am also getting the same error:

Set SX frequency failed  
ERROR: SetFrequencySXT(50 MHz) - cannot deliver frequency

The error appears for some specific frequencies [MHz]: 50, 100, 344.39, 390, 399.72 and 799.445

Is it a configuration problem (related to the ini file I am using)?  
Any suggestion to solve this issue?

Ini file link: [https://www.dropbox.com/s/ww8t1x5h4hy5910/tx2rxPSAGCOFF.ini?dl=0](https://www.dropbox.com/s/ww8t1x5h4hy5910/tx2rxPSAGCOFF.ini?dl=0)

 ![Screenshot%20from%202019-03-25%2021-05-50](https://canada1.discourse-cdn.com/flex034/uploads/myriadrf/original/2X/b/bdb12b2223024d3f5034e067b70280d2d8e2a554.png)

Thanks in advance  
Mauro