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From: | Marcus D. Leech |
Subject: | Re: [Discuss-gnuradio] A Clarification |
Date: | Tue, 28 May 2013 18:30:07 -0400 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16 |
Hi, I would appreciate if the following are clarified regarding USRP, 1.Is it necessary to have two daughter boards in USRP1 to receive data at two different frequencies? 2.If one daughterboard is used,can it receive the data individually and separately at different frequencies? Thanks!!
It depends.If those frequencies are separated by less than the analog bandwidth of a single daughtercard, then you can use the dual-DDC feature to pick both of those frequencies out of the larger bandwidth. Otherwise, you must use another card. Each daughtercard has only a single analog downconverter, and there's only a single dual-channel ADC to sample the output of the card.
-- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org
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