Re: [IRCA] Shortwave band interference

[Robert LaFore <rdlafore@xxxxxxxxx>]

Yes, Common Mode chokes work wonders. You might be able to knock some of 
it back with ferrite snap ons for the power supply and the Cable TV coax.


For the cokes, checkout http://myantennas.com/wp/product-category/cmc-2/



On 8/14/2017 7:47 PM, R. Colin Newell wrote:
> A) common mode chokes for the antenna -
> B) choke kit for the D.C. Supply for the cable modem.
>
> Colin Newell - CoffeeCrew.com - VA7WWV - Victoria - BC
>
> > On Aug 14, 2017, at 4:40 PM, James Niven <jniven@xxxxxxxxxxxxx> wrote:
> >
> > Hi all,
> >
> > Here in the shack my AM band is very clear of any interference and I have no
> > issues picking out weak stations, but the shortwave bands are covered in a
> > kind of hash interference and only strong signals are being heard.
> >
> > Over the weekend, I turned off all the circuit breakers in the house and one
> > by one turned them on until I found the device(s) causing the interference..
> > It turns out the spectrum cable modem is the issue along with the two boxes
> > on top of the TV's for the cable connection. These devices are powered by
> > the external power pack.
> >
> >
> >
> > I am wondering if anyone has had any experience in tackling such noise or
> > will the MFJ-1026 unit be affective enough to reduce or remove the noise I
> > am experiencing.
> >
> >
> >
> > Unfortunately, turning on the cable modem is out of the question as it's the
> > Internet/TV and Phone services to the house, plus my wife uses the internet
> > as well.
> >
> >
> >
> > Any suggestions are welcomed..
> >
> >
> >
> > Regards,
> >
> >
> >
> > James Niven
> >
> > Austin, Texas
> >
> >
> >
> >
> >
> > ---
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