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[Discuss-gnuradio] Question about Xrystal leakage problemes

From: 김상원
Subject: [Discuss-gnuradio] Question about Xrystal leakage problemes
Date: Thu, 23 Aug 2007 23:36:04 +0900

When I used the TVRX and USRP main board for receiving TV signals, I found that the usrp 64MHz Xrystal leakage is serious.
Even though there is no input signals, very strong leakage sinal is ovserved every 16MHz(16MHz*n) and 64MHz(64MHz*n) frequencies.
I think USRP board need more enough via around the xrystal or shield can.(If antenna is connected, leakage is bigger).
Is there any solution to remove the xrystal leakages? I want to use tvrx board for VHF, UHF CH Sensing receiver, but every 16MHz strong spurious makes impossilble to sensing..
We await your quick reply.

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