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Today's Topics:
1. Re: Signal generator power receiving issue (Marcus D. Leech)
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Message: 1
Date: Sat, 13 May 2017 15:40:44 -0400
From: "Marcus D. Leech" <[email protected]>
To: [email protected]
Subject: Re: [USRP-users] Signal generator power receiving issue
Message-ID: <[email protected]>
Content-Type: text/plain; charset="windows-1252"; Format="flowed"
On 05/13/2017 10:52 AM, Jahnavendra Mattipa via USRP-users wrote:
> Hello all,
> I have to receive the Satellite data through the antenna and it is
> a secondary thing. Before going to check the satellite data i have to
> check the signal generator because they both are doing same
> processing. So, i recently test the signal generator power using the
> USRP. Here i am getting one issue is that when i giving -40dB gain
> value to the USRP from the signal generator the wave is showing the
> received data is -36dB. One more signal is -63dB and i am receiving
> the -39dB. There is a small difference between receiving data when
> compared to input data.
> I have to know what is the USRP gain and how it is processing
> the signal generator or satellite data? I am giving the some power
> from signal generator and what happens if i change the gain in "USRP
> Source"? I noted the data from -110dB to +110dB and the receiving
> data is not changing from -110dB to 0dB, it is changing from 0dB to
> 50dB. The same process is continued for -63dB also.
> Can anyone kindly help me to solve this issue! If anyone has
> advices and comments, they would be greatly appreciated.
>
> Best Regards,
> M.Jahnavendra
>
YOu haven't said what frequency, no which USRP device you're using, nor
what application you're using to measure power. This all matters.
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