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Re: [Discuss-gnuradio] Maximum TX frequency limit
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From: |
Eric Blossom |
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Subject: |
Re: [Discuss-gnuradio] Maximum TX frequency limit |
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Date: |
Sat, 15 Apr 2006 13:06:56 -0700 |
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User-agent: |
Mutt/1.5.9i |
On Sat, Apr 15, 2006 at 02:00:00PM +0200, Matteo Campanella wrote:
> Hello, I found out that the max tx freq is limited in usrp_standard.cc
> to 44MHz (since USE_FPGA_TX_CORDIC is undef'd). Now, since a 128MSps
> should safely ensure 64MHz, what is actually imposing that limitation?
It's set by the passband of the interpolator in the AD9862. See the
datasheet for details.
> I was trying to go to 6mtrs ham band...
Use a harmonic. You *are* going to want some filtering ;)
Eric