Disable AGC

[Özgür]

I am trying to turn off Automatic Gain Control at usrp n210 but i can't.How to disable AGC?

[tcap]

Hello,

From what I could find, the AGC is part of some daughterboards. What daughterboard are you using?

Regards,

[Özgür]

I am using SBX daughterboard.

[tcap]

Hello,

Are you sure that your currently using AGC?

According to https://www.ettus.com/content/files/kb/Selecting_an_RF_Daughterboard.pdf, only the TVRX2 has built in AGC.

Regards,

[Özgür]

Hello,

I am trying the removing noise in the sound file.So,I tried turn off the AGC at USRP.How can I solve this problem?

Thank you.

[tcap]

Hello Ozgur,

Can you please show me where it indicates that you are using AGC? 

Are you trying to reduce the noise in a signal that you are outputting or a signal that you are loading from a file?

Regards,

[Özgür]

Hello,

I am not using the AGC.Just,I wanted to turn off for removing noise.This is my FM Demodulation code.I want to removing noise in this code by using threshold but i can't.Can you help me?

Thank you.

[tcap]

Hello Ozgur,

I am very confused.

I don't think that the N210 with SBX has a built-in AGC, so it is already disabled. If you have found documentation indicating that you are using a AGC, please link the document here.

How are you planning on using a threshold to reduce noise? I recommend confirming that your radio is recording in your signal of interest and using a bandpass filter to isolate the frequency of interest. This will remove most of the noise. Once you have the frequency isolated, you can demodulate the signal.

Regards,