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Re: [Discuss-gnuradio] RX and TX stuff

From: Patrik Tast
Subject: Re: [Discuss-gnuradio] RX and TX stuff
Date: Mon, 12 Sep 2011 15:54:44 +0300


There is a great lowcost antenna design software called EZNEC http://www.eznec.com/

Good luck (oh, we do not need to be lucky since we know...)

----- Original Message ----- From: "sumitstop" <address@hidden>
To: <address@hidden>
Sent: Monday, September 12, 2011 15:16
Subject: Re: [Discuss-gnuradio] RX and TX stuff

Hey Patrik, will using directional antenna solve my problem.
Patrik Tast-2 wrote:
Hi All,I've been following closely the OFDM- and related TX/RX issues.If
you TX sumthing, build/buy an (directive) antenna for your target
frequency and point it at the RX usrp.I suggest a Yagi, helix or a
parabola for TX:ing, cost ~$10 at your frequency. Apply to RX the
same.Using a whip is trouble if you do not know....An antenna sure can be
*omni* to detect the signal, to demodulate it perfectly is another
thing.Example: TX is a RHCP (right hand circular polarized) signal.RX it
with a VP (vertical polarized) antenna, it wont demodulate properly.A user
receiving 137 MHz RHCP satellite data posted *his ultimate antenna*
imagehttp://www.poes-weather.com/~patrik/tmp/RHCP-137.jpgIt aint that
complicated, trial and error does it.Regards,Patrik
_______________________________________________Discuss-gnuradio mailing

Sumit Kr.
Research Assistant
Communication Research center
IIIT Hyderabad
View this message in context: http://old.nabble.com/Confusion-with-uhd_fft.py-with-usrp2-tp32438830p32447361.html
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