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From: | Patrik Tast |
Subject: | Re: [Discuss-gnuradio] RX and TX stuff |
Date: | Mon, 12 Sep 2011 15:54:44 +0300 |
FYI,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...) Patrik----- 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 itwith a VP (vertical polarized) antenna, it wont demodulate properly.A userreceiving 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 address@hidden://lists.gnu.org/mailman/listinfo/discuss-gnuradio----- Sumit Kr. Research Assistant Communication Research center IIIT Hyderabad India --View this message in context: http://old.nabble.com/Confusion-with-uhd_fft.py-with-usrp2-tp32438830p32447361.htmlSent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list address@hiddenhttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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