Yeah sorry got frequencies flipped. Notch on 1860. See what happens. I live a mile away from 760KHz running 50KW 24/7. I use a W6LVP RX loop with one of his BCB filters in it plus another BCB filter right at the rig input. This reduces the signal from 60+ over to about S9.
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: [email protected] Author: 4NEC2 The Definitive Guide EMail List:: [email protected] On Mon, May 20, 2019 at 9:42 AM K9FD <[email protected]> wrote: > Explain how a notch filter on 930 can help a second harmonic on 1860? > > You can filter the broadcast band to zero and the second harmonic is > still there. > > > > Mark, I use a receiving array and have put a high pass filter on the > > receiving array to cut the broadcast band down. I have an AM station > > near here that was doing the same thing. If you can run a separate RX > > only antenna it helps. If not then a notch filter for 930 may work > > that you can transmit through. > > > > Tim, K9CQ > > > > -----Original Message----- From: Mpridesti via Topband > > Sent: Monday, May 20, 2019 11:24 AM > > To: Jorge Diez - CX6VM > > Cc: TopBand List ; Herbert Schoenbohm ; [email protected] > > Subject: Re: Topband: AM interference on 1840 > > > > 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 > >> <[email protected]> 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&theater > >> > >> https://twitter.com/mauriciov920 > >> https://raddio.net/134431-colmundo-radio-ibague/ > >> > >> 73, > >> Jorge > >> CX6VM/CW5W > >> > >> < > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > > >> > >> Libre > >> de virus. www.avast.com > >> < > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> > > >> > >> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > >> > >> El lun., 20 may. 2019 a las 12:47, Herbert Schoenbohm (< > >> [email protected]>) 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 > >>> <[email protected]> > >>> 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&utm_source=link&utm_campaign=sig-email&utm_content=webmail > >>>> > >>>>> > >>>> Libre > >>>> de virus. www.avast.com > >>>> < > >>>> > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_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 > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
