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Hello,
I am trying to suppress raspy horizontal oscillator noise being =
generated at 15.75 KHZ in my neighbors TV. This raspy signal is rich in =
harmonics and migrates in to the HF band as it is back-fed into the =
cable lead and acting as an antenna .
In-line filters do not work but I have had some success with toroids. My =
question is do I get toroids that have better suppression =
characteristics below 1 Mhz, nearer the fundamental or get toroids that =
have better suppression at HF frequencies where the listening frequency =
is located. These toroids would be placed at the cable TV input.
Thanks,
Randy
wx5l@home.com
New Orleans, Louisiana
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<DIV><FONT face=3DArial size=3D2>Hello,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>I am trying to suppress raspy =
horizontal oscillator=20
noise being generated at 15.75 KHZ in my neighbors TV. This raspy =
</FONT><FONT=20
face=3DArial size=3D2>signal is rich in harmonics and migrates in =
to the HF=20
band as it is back-fed into the cable lead and acting as an antenna=20
.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>In-line filters do not =
work but I have=20
had some success with toroids. My question is do I get toroids that have =
better=20
suppression characteristics below 1 Mhz, nearer the fundamental or get =
toroids=20
that have better suppression at HF frequencies where the listening =
frequency is=20
located. These toroids would be placed at the cable TV =
input.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Randy</FONT></DIV>
<DIV><FONT face=3DArial size=3D2><A=20
href=3D"mailto:wx5l@home.com";>wx5l@home.com</A><BR>New Orleans,=20
Louisiana</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV></BODY></HTML>
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