I sure hear something there and it is from
due south. They're wasting a lot of power
if that's them I'm hearing.
73,
Gary
KA1J
> 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.lavozdelp
has anyone made the ITU/IARU aware ?
-- Original Message --
From: "Jorge Diez - CX6VM"
To: "Herbert Schoenbohm"
Cc: "TopBand List" ; wsjtgr...@yahoogroups.com
Sent: 5/20/2019 11:54:17 AM
Subject: Re: Topband: AM interference on 1840
I think HK authorities must do something with this.
If the problem is related to receiver overload, than a trap at the BCB's
operating frequency will correct the problem. Unless the problem is
related to a non-linear junction (rusty fence wire, etc.) generating local
IMD or harmonically related signals due to rectification.
If the problem is the a
Boy that is pretty extreme,
When i bought this QTH I had a 50KW AM station on 830khz blasting away in
the other room from my shack. Near impossible to operate, most any band,
later the 50kw was moved and power dropped to 1 KW, that was not much
of a problem. Then the 1KW was moved also, all
930 isn't the problem, the second harmonic is.
On 5/20/2019 9:26 AM, Mark Schoonover wrote:
Mark,
How about a notch filter centered on 930? Search on AM BCB Filter to get
some ideas.
73! Mark KA6WKE
_
Searchable Archives: http://www.contesting.com/_topband - Topband Reflecto
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
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
n
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, 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
trans
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
The 1840 interference from the HK BC station propagates 1000's of miles. I
bet they are using a solid state PA without a bandpass filter.
Herb, KV4FZ
On Mon, May 20, 2019 at 1:24 PM Mpridesti wrote:
> I have a local AM station here (about 3 km away) that operates on 930 kHz.
> Their second har
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://w
Do you know of any HK stations active on FT-8 that can QSX and report to
the telecom agency in Columbia?
On Mon, May 20, 2019 at 12:54 PM Jorge Diez - CX6VM
wrote:
> I think HK authorities must do something with this. Local radio Clubs
> must act
>
> https://www.lavozdelpueblo920am.com/programa
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
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/1344
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
wrote:
> Hello
>
> do you notice a second harmonic on 1840? I
1838-1841 is the FT8 no-mans land anyway so not useful for CW anymore.
Tim N3QE
> On May 20, 2019, at 10:20 AM, Jorge Diez - CX6VM
> 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:
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 solv
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