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[Discuss-gnuradio] IF frequency of RFX400

From: melanio
Subject: [Discuss-gnuradio] IF frequency of RFX400
Date: Tue, 3 Jul 2007 11:31:36 +0900



TVRX IF frequency is fixed at 44MHz, But the RFX400 IF frequency is 3MHz or 4MHz, so DDC is -3MHz or -4MHz.

What is the reason does not use the fixed IF frequency?

I think which is not fixed seems to be a bit complicated. I wonder why different IF frequency is necessary such as 3or 4MHz…

Is it the constraint because of the hardware?


can some help me with this problem?

thanks in advance





Sang-Won Kim @Cognitive Radio Research Team


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