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Re: [Discuss-gnuradio] [USRP-users] best transmitter/receiver setup for

From: Lin HUANG
Subject: Re: [Discuss-gnuradio] [USRP-users] best transmitter/receiver setup for large coverage
Date: Thu, 15 Aug 2013 20:21:16 +0800


So you just use CORNET remotely. Well, I think you should try different parameters... 
They use Custom developed USRP2 daughterboard based on the Motorola RFIC4. I didn't find "specifications on the "custom daughterboard"" in the FAQ.


2013/8/15 dilip thapa <address@hidden>

actually it is under the building please check here CORNET.


Date: Thu, 15 Aug 2013 19:49:38 +0800
Subject: Re: [USRP-users] best transmitter/receiver setup for large coverage
From: address@hidden
To: address@hidden
CC: address@hidden; address@hidden

1 km is a long distance, so the lower frequency, the less pathloss. Use maximum tx gain and rx gain. 
And the distance may highly depend on the environment. Is there buildings, trees, or just a blank space?


2013/8/15 dilip thapa <address@hidden>
I am using usrp2 and gnuradio 3.3.0.
I want to use benchmark_tx.py as transmitter and benchmark_rx.py as receiver.
so that multiple receiver at distance of around 1 KM should get good signal strength.
So could you please let me know the best options for tx and rx waveform, so I could get the maximum range of coverage.
best options means:

transmitter frequency, tx gain, tx amplitude and rx-gain, if there is any other then let me know.
I need this to do spectrum sensing with energy detection.
with Thanks,

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