[Discuss-gnuradio] Question about Xrystal leakage problemes

[김상원]

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.

 

Regards,

Kim