[RFI] CARRIER ON 40-METERS

[Michael Carter]

Correction to my last post - there are many SW broadcast
stations on 7.195 MHz with 50 kW and up TX power.  I
put the table in frequency rank order and looked at the
many stations on 7.195 MHZ.  An
unmodulated carrier for days on end seems inconsistent
with one of them.

Mike, K8CN
________________________________
From: RFI <rfi-bounces+mike.carter=unh.edu at contesting.com> on behalf of Michael Carter <Mike.Carter at unh.edu>
Sent: Monday, January 30, 2023 5:59 PM
To: David Eckhardt <davearea51a at gmail.com>; Joe <nss at mwt.net>
Cc: rfi at contesting.com <rfi at contesting.com>
Subject: Re: [RFI] CARRIER ON 40-METERS

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If my reading of that table from the source
Joe linked is correct, the China transmitter
on 7.195 MHz has a TX power of 50 watts.
Seems unlikely to provide S9 + 10 dB signal
or larger in west central US......

Mike, K8CN
________________________________
From: RFI <rfi-bounces+mike.carter=unh.edu at contesting.com> on behalf of David Eckhardt <davearea51a at gmail.com>
Sent: Monday, January 30, 2023 5:52 PM
To: Joe <nss at mwt.net>
Cc: rfi at contesting.com <rfi at contesting.com>
Subject: Re: [RFI] CARRIER ON 40-METERS

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I would rule out either of these two sources.  It is strong with slow
ionospheric fading indicating only one skip zone.  Certainly not
characteristic of Chinese or German signals in the middle of the afternoon
on 40-Meters.

Dave - WØLEV

On Mon, Jan 30, 2023 at 10:42 PM Joe <nss at mwt.net> wrote:

> According to these folk it's Germany or China.
>
> https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.freqspotter.com%2Fsearch.php%3Fsearch_for%3Dguide%26q%3D3%26order_by%3Dcallsign%26page%3D45%26order_direction%3DASC&data=05%7C01%7Cmike.carter%40unh.edu%7C6d5774ad3ea44127441808db0315a127%7Cd6241893512d46dc8d2bbe47e25f5666%7C0%7C0%7C638107163666264228%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=JV%2Bp6W0g8U40B5ImAdg4hmHRjYX%2F%2FkVdz7of2ZM6Qog%3D&reserved=0
>
> Joe WB9SBD
>
> On 1/30/2023 4:36 PM, Wes Stewart via RFI wrote:
> >   Using my Perseus it's peaking -70 dBm on my 40-meter inverted-vee with
> 30 dB fades here in Tucson at 2225Z.
> > I have no idea what it is.
> >
> > Wes  N7WS
> >
> >      On Monday, January 30, 2023 at 03:06:28 PM MST, David Eckhardt<
> davearea51a at gmail.com>  wrote:
> >
> >   Strong here in N. Colorado.  7.195 MHz.  It is being heard at least
> from E.
> > Texas to Kansas and, of course, here in N. Colorado.  It is a clean
> > unmodulated carrier and has been present for 3 to 4 days.  I've heard it
> > typically during daytime hours, but not tried during the evening.
> >
> > Does anyone have information on what it may be?
> >
> > Dave - WØLEV
> >
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--
*Dave - WØLEV*
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