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Re: [Discuss-gnuradio] BASIC_RX complex sampling

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] BASIC_RX complex sampling
Date: Thu, 16 Apr 2009 14:51:06 -0400
User-agent: Thunderbird (X11/20090105)

Johnathan Corgan wrote:
> On Thu, 2009-04-16 at 14:22 -0400, Marcus D. Leech wrote:
>> Does the FPGA code for BASIC_RX support a Hilbert transform to convert
>> one of the real inputs into a complex stream?
> No, but if your signal of interest has a passband above DC, when you
> "tune" the BasicRX, the complex mixer in the FPGA will still
> down-convert it to a complex baseband I/Q signal.
> Johnathan
Ah, fabulous.   So if I have a 10.7MHz IF coming out of a receiver in
real mode, I can just "tune" the BASIC_RX
  to 10.7, and it'll as-if-by-magic become a complex signal of +/-5Mhz? 

Marcus Leech
Principal Investigator, Shirleys Bay Radio Astronomy Consortium

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