SB-102 with Lo-Pass filter

[Mark A Moss]

On Wed, 15 Jul 1998 11:59:51 -0700 Allen & Matt <mattall at CWNET.COM>
writes:
>Hi Group--
>
>I've been led to believe that one should always use
>a low-pass filter on the output of the rig to help
>minimize TVI--especially when the neighborhood does
>not have cable.
>
>Is this really true?
>(Assume a doublet antenna, balanced feedlines, ant. tuner.)
>
>As most older rigs, this one has pi-out. Is that, in
>itself, low-pass?
>
>Does the filter really make a difference *in the real
>world*?

Depends.  A low pass filter will do very little to help with RFI problems
caused by fundamental overload.  Even a theoretical perfect low pass
filter will do nothing to help with this type of RFI because the
TV/Telephone/Stereo/Blender is improperly responding to the powerful
fundamental signal.

>How about you SB-users who have no lo-pass filter!
>Do you have particular problems with TVI?
>
>Thanks for info and help!
>
>Rev. Allen
>--
>* * * * * * * * * * * * * * * *
>73 de Allen, KJ6XH, and Matt                  West Sacramento, CA
>               email:     mattall at cwnet.com
>               http://users.cwnet.com/mattall
>
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