Topband: AM broadcast multiplexing

[Mike Waters]

Just attenuate the signals. A few resistors is way cheaper than 195 bucks.

Or a 2k pot. ;-)

73 Mike
W0BTU

On Fri, Apr 21, 2023, 11:56 AM Eric Scace K3NA <eric at k3na.org> wrote:

> Being so close to the transmitter site. it's quite possible that you are
> experiencing receiver front end overload, and your receiver is generating
> some of these signals.
>
> You might wish to try the AM “brickwall” filter <
> https://www.qsl.net/wb5wpa/Filter/AM%20Brick-Wall%20160%20Meter%20Filter.pdf>.
> DX Engineering sells them for $195 <
> https://www.dxengineering.com/parts/dlw-fl1718>. I have used one in many
> measurement situations at locations even closer than yours — it’s quite
> effective in knocking down AM broadcast signals to a level that eliminates
> receiver overload and internal IMD product generation.
>
> — Eric K3NA
>
> > On Apr 21, 2023, at 10:16, Phil Lefever via Topband <
> topband at contesting.com> wrote:
> >
> > Eric,
> >
> > I live about 3/4 mile from the multiplexed stations KKMS/WWTC (980 &
> 1280) here in MN and they are all over the ham bands in my receivers.
>