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Re: [Discuss-gnuradio] Impulse response USRP DAC<->ADC

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] Impulse response USRP DAC<->ADC
Date: Wed, 26 Mar 2008 23:49:57 -0700
User-agent: Thunderbird (X11/20080226)

Per Zetterberg wrote:
When I changed the base-band frequency of the digital up/down-conversion
from zero to 4MHz the hole disappeared.

There is no 4 MHz hole. You are seeing rolloff from the CIC filter on the TX.


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