[TowerTalk] Broadcast Band Filter

Jim Rhodes jimk0xu at gmail.com
Fri Mar 27 14:47:48 EDT 2020


If the 2 broadcast stations were mixing somewhere outside the receiver then
the product could show up as an in-band signal and would not be blocked by
a bandpass filter.

Jim Rhodes
K0XU

On Fri, Mar 27, 2020, 13:11 David Gilbert <xdavid at cis-broadband.com> wrote:

>
> I don't understand your comment.  A filter is a filter.  Assuming we're
> talking a band reject filter, if the filter is between the source of the
> AM signal and the rig, even if the source is due to rectification, the
> filter should still do its job.  Why would it not?
>
> 73,
> Dave   AB7E
>
>
>
>
> On 3/27/2020 5:43 AM, john at kk9a.com wrote:
> > Probably Array Solutions, DX Engineering and maybe VA6AM have
> > broadcast filters however if there is rectification occurring they
> > will likely not help. At my station in Chicagoland I could hear a mix
> > of two AM broadcast stations on my 80m TX antenna which was quite
> > annoying at times. I never tried a specialized filter because I did
> > not feel that it was a RX overload issue.
> >
> > John KK9A
> >
> >
> > Mike Ryan mryan001 wrote:
> >
> >
> > I remember someone recommending a brick wall AM broadcast band filter
> > some
> > months back.  Was a little on the expensive side but.if it works. Anyone
> > recall that thread and the name and/or contact for the manufacturer or
> > dealer?  Thanks.   - Mike
> >
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