Re: [Discuss-gnuradio] OFDM - real RF output vs. expected output

...@ettus.com] Sent: Thursday, February 14, 2013 7:51 AM To: Ralph A. Schmid, dk5ras Cc: GNURadio Subject: Re: [Discuss-gnuradio] OFDM - real RF output vs. expected output You are probably using an odd interpolation ratio. You need to use an even rate in order to get a flat passband. The

Re: [Discuss-gnuradio] OFDM - real RF output vs. expected output

You are probably using an odd interpolation ratio. You need to use an even rate in order to get a flat passband. The WBX does not have adjustable filtering. Matt On Wed, Feb 13, 2013 at 10:42 PM, Ralph A. Schmid, dk5ras wrote: > Hi, > > I use an USRP1 together with gnuradio/GRC and would like

[Discuss-gnuradio] OFDM - real RF output vs. expected output

Hi, I use an USRP1 together with gnuradio/GRC and would like to transmit an OFDM signal, abt. 1 MHz bandwidth at 433 MHz. The FFT display block within GRC shows the power mask as expected, a flat line over the bandwidth, and steep drops at both ends. What a real spectrum analyzer at the output sho