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[Discuss-gnuradio] How can we find out the IF frequency of the signal co

From: PRIYANKA PRIYADARSHINI
Subject: [Discuss-gnuradio] How can we find out the IF frequency of the signal coming out of RTL-SDR source block
Date: Sat, 7 Apr 2018 10:31:39 +0200
Hi,

I am trying to receive a GPS signal and I am using RTL-SDR2832U, and an antenna with 40dB gain.
 
According to my research, the signal coming from the satellite is at RF, and it gets downconverted in front-end to IF (Intermediate Frequency).

Now, I need to remove that IF from the signal coming from the front end by multiplying it with the local generated carrier signal. For this, I want to know the exact value of the IF. But, I am confused that how can I get this? I also tried reading the data sheet of RTL-SDR but couldn't find the helpful information. 

Is there anyway to find the exact IF frequency?

Thank you
Priyanka
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