Mark Zenier wrote:

Is there any site/source for the current details on what Over the
Horizon Radars are running and their impact on SWL?

(Yea, we're all glad the Woodpecker is gone).

Mark Zenier Washington State resident

The CODAR transmitters are causing some serious QRM on the tropical
bands in the range 4500-5000/Khz. I've emailed some of the operators,
which are usually universities, to remind them that their transmitters
are disrupting certain international broadcasts. However the FCC
encouraged them to use these frequencies because shortwave listeners are
at the bottom of the barrel when it comes to interference from licensed
stations such as CODAR. The current FCC chairman doesn't seem to care
about the possible interference from the proposed BPL systems, so I
doubt he's concerned about CODAR interference to shortwave listeners.


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In article , starman
wrote:

Mark Zenier wrote:

Is there any site/source for the current details on what Over the
Horizon Radars are running and their impact on SWL?

(Yea, we're all glad the Woodpecker is gone).

Mark Zenier Washington State resident

The CODAR transmitters are causing some serious QRM on the tropical
bands in the range 4500-5000/Khz. I've emailed some of the operators,
which are usually universities, to remind them that their transmitters
are disrupting certain international broadcasts. However the FCC
encouraged them to use these frequencies because shortwave listeners are
at the bottom of the barrel when it comes to interference from licensed
stations such as CODAR. The current FCC chairman doesn't seem to care
about the possible interference from the proposed BPL systems, so I
doubt he's concerned about CODAR interference to shortwave listeners.

I get interference on two bands. The high end of 25 meters and the low
end of 22 meters. About as annoying as the Bryant interference on RRS.

--
Telamon
Ventura, California

I am getting what I believe to be CODAR on two areas of the dial, centered on
these freqs.: 4546 and 4800 kHz. As I am located on Long Island, NY I expect
that these are originating from stations on the New Jersey shore.

73s
Ken Maltz
Jericho, NY
NRD-535D, NRD-220 Collins R-388, Racal RA6790/GM,
ICOM R71A, ICOM R-7100(x3), AOR AR-8000
Panasonic RF-2200, Sony ICF-7600GR,
Hoka Code3 Gold-Pro, 60' long wire, MLB balun