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Re: [Discuss-gnuradio] calibrating USRP
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From: |
Marcus D. Leech |
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Subject: |
Re: [Discuss-gnuradio] calibrating USRP |
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Date: |
Mon, 15 Jul 2013 09:01:00 -0400 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6 |
On 07/15/2013 08:55 AM, Nemanja Savic wrote:
I think this should be the last question in this thread. Which input
signal levels should I stick? OIP3 at the first LNA MGA-62563 is 23
dBm. Since the gain is arround 22 dB, is it ok to stay below -20dBm?
Best,
Nemanja
Yes, signals below -20dBm should keep things reasonably linear.
The thing to remember is that these receivers are generally designed for
from-the-antenna use, where signal levels below -60dBm are quite common, and
signals that are at -20dBm are "screamingly loud".