My observation from North GA
Centered about 28.600 and 100KHz wide. At one point it was 500KHz wide. It
consisted of hundreds of individual carriers. Three seconds on at spacing
of 850 Hz, one second of silence, then 5 seconds of carriers at 300Hz
spacing, then one second of silence, This repeated endlessly from about 8AM
to 2PM when EU faded out. I have a pan adapter capture if anyone is
interested (reflector did not allow sending it)
-----Original Message-----
From: RFI <rfi-bounces+w4dd09=gmail.com@contesting.com
<mailto:rfi-bounces+w4dd09=gmail.com@contesting.com> > On Behalf Of Larry
K4AB
Sent: Monday, March 06, 2023 10:17 AM
To: rfi <rfi@contesting.com <mailto:rfi@contesting.com> >
Subject: [RFI] 10 Meter OTH Radar(?)
K1TO wrote:
>Who else noticed the on/off QRN about 100 khz wide and centered at
>roughly
28650-29000 at various times?
I certainly did. A very broad, and loud, digital-sounding signal. My first
guess was some sort of over the horizon radar system. Does anyone have any
information?
If it is a type of "nation-state" system, I presume it would be very
difficult, if not impossible, to prevent it from using the amateur radio
frequencies.
73,
Larry K4AB
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