Re: Topband: AM interference on 1840

[Allan Boike]

So if you move up to 1848 what happens to ssb dx window

On Mon, May 20, 2019 at 12:35 PM Herbert Schoenbohm <
herbert.schoenb...@gmail.com> wrote:

> A notch filter on 930 won't help as the IX is transmitted on 1860.
>
> Herb, KV4FZ
>
> On Mon, May 20, 2019 at 1:26 PM Mark Schoonover  wrote:
>
> > Mark,
> >
> > How about a notch filter centered on 930? Search on AM BCB Filter to get
> > some ideas.
> >
> > 73! Mark KA6WKE
> >
> > Website: https://www.ka6wke.net
> > Live Stream: https://www.ka6wke.net/live-stream
> > YouTube Live!: https://bit.ly/bench-therapy-live
> > Facebook: https://www.facebook.com/ka6wke
> > Twitter: https://www.twitter.com/ka6wke
> > EMail Announcement: ka6wke-announce+subscr...@groups.io
> > Author: 4NEC2 The Definitive Guide
> > EMail List:: 4nec2defgu...@groups.io
> >
> >
> > On Mon, May 20, 2019 at 9:24 AM Mpridesti via Topband <
> > topband@contesting.com> wrote:
> >
> >> I have a local AM station here (about 3 km away) that operates on 930
> >> kHz. Their second harmonic is 1860.  Seems they are operating within
> >> specification and abide by FCC regulations. But still the second
> harmonic
> >> wipes out any DX on or near that frequency. Signal strength is around
> S7.
> >>
> >> Regards,
> >>
> >> Mark, K1RX
> >>
> >>
> >> > On May 20, 2019, at 11:54 AM, Jorge Diez - CX6VM <
> cx6vm.jo...@gmail.com>
> >> wrote:
> >> >
> >> > I think HK authorities must do something with this.  Local radio Clubs
> >> must
> >> > act
> >> >
> >> > https://www.lavozdelpueblo920am.com/programacion
> >> >
> >>
> https://www.facebook.com/mauriciovargaslavozdelpueblo/photos/a.1922152811350449/2377754772456915/?type=1
> >> > https://twitter.com/mauriciov920
> >> > https://raddio.net/134431-colmundo-radio-ibague/
> >> >
> >> > 73,
> >> > Jorge
> >> > CX6VM/CW5W
> >> >
> >> > <
> >>
> https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail
> >> >
> >> > Libre
> >> > de virus. www.avast.com
> >> > <
> >>
> https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail
> >> >
> >> > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> >> >
> >> > El lun., 20 may. 2019 a las 12:47, Herbert Schoenbohm (<
> >> > herbert.schoenb...@gmail.com>) escribió:
> >> >
> >> >> Interference from them makes 1840 useless for me.  Since they don't
> >> >> respond to my emails maybe WSJT-X could assign 1844 or 1848 to 160 in
> >> their
> >> >> next release.
> >> >>
> >> >> Herb Schoenbohm, KV4FZ
> >> >>
> >> >> On Mon, May 20, 2019 at 11:21 AM Jorge Diez - CX6VM <
> >> cx6vm.jo...@gmail.com>
> >> >> wrote:
> >> >>
> >> >>> Hello
> >> >>>
> >> >>> do you notice a second harmonic on 1840?  It´s very strong
> >> >>>
> >> >>> I determined that is from LA VOZ DEL PUEBLO 920 AM, in Colombia
> >> >>>
> >> >>> https://www.lavozdelpueblo920am.com/
> >> >>>
> >> >>> I sent them an email with no answer yet.
> >> >>>
> >> >>> Maybe if they receive many emails will take care about that and ask
> >> the
> >> >>> technic to solve it, what do you think?
> >> >>>
> >> >>> --
> >> >>> 73,
> >> >>> Jorge
> >> >>> CX6VM/CW5W
> >> >>>
> >> >>> <
> >> >>>
> >>
> https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail
> >> 
> >> >>> Libre
> >> >>> de virus. www.avast.com
> >> >>> <
> >> >>>
> >>
> https://www.avast.com/sig-email?utm_medium=email_source=link_campaign=sig-email_content=webmail
> >> 
> >> >>> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>
> >> >>> _
> >> >>> Searchable Archives: http://www.contesting.com/_topband - Topband
> >> >>> Reflector
> >> >>>
> >> >>
> >> >
> >> > --
> >> > 73,
> >> > Jorge
> >> > CX6VM/CW5W
> >> > _
> >> > Searchable Archives: http://www.contesting.com/_topband - Topband
> >> Reflector
> >>
> >> _
> >> Searchable Archives: http://www.contesting.com/_topband - Topband
> >> Reflector
> >>
> >
> _
> Searchable Archives: http://www.contesting.com/_topband - Topband
> Reflector
>
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflector

Re: Topband: Anyone else hearing broadband digital signal intruder from 1905 to 1925 kHz?

[Allan Boike]

59+25  1/4 vertical  S9 N/E bev Very loud
Al W8ALP


Virus-free.
www.avast.com

<#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

On Sat, Mar 24, 2018 at 9:00 PM, Mark K3MSB  wrote:

> S5-6 on my NE BOG.   S10+ on my INV-L.
>
> FM19ut @0055Z.
>
> 73 Mark K3MSB
>
> On Sat, Mar 24, 2018 at 7:53 PM,  wrote:
>
> >
> > _
> > Topband Reflector Archives - http://www.contesting.com/_topband
> >
> _
> Topband Reflector Archives - http://www.contesting.com/_topband
>
_
Topband Reflector Archives - http://www.contesting.com/_topband

Topband: 160M Four Square array phasing lines

[Allan Boike]

I'm working on a 160 meter 4-square array. Would like to inquire is the
best way to set up the phasing lines is to trench the feed lines 12 - 18
inches deep. Part of the array I'll still have to cut grass don't want to
finish the ground system till I know the best way. Doesn't make sense for
me to think that I can lay the feed lines over the  radials. Radials will
be laying on the ground with landscape staples. Each vertical will have
approximately 60 quarter wave radials. The verticals will be approximately
90ft tall and 40 ft sloping back to tower. Any suggestions for building the
array would be greatly appreciated.

Al W8ALP
_
Topband Reflector Archives - http://www.contesting.com/_topband