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From: | Matt Ettus |
Subject: | Re: [Discuss-gnuradio] adjustable clock oscillator? |
Date: | Wed, 17 Nov 2010 22:38:26 -0800 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Lightning/1.0b2pre Thunderbird/3.0.10 |
On 11/17/2010 09:13 PM, Justin Kelly wrote:
Just a thought would something like the Silicon Labs Si 570 anyrate clock be of use for adjusting any of the system speeds? Like nudging the sampling rate up or down to better match what your working with? Justin N2TOH
If your concern is moving the RF frequency in fine frequency steps then there should be no need to do this. You can tune the transmit and receive frequencies with arbitrary precision.
If your concern is moving the sample rate by significant amounts in order to be an exact multiple of symbol rate, then some people have done this by replacing the main oscillator. A lot of people using OpenBTS use 52 MHz, for example.
Matt
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