Thanks, Don and Jim for the confirmation - glad it's gone, though it's
interesting that FT8 continued to work through it. I had the same
thought about the 50-Hz spacing.
73, Pete N4ZR
On 10/10/2023 11:24 PM, Don Kirk wrote:
Hi Pete,
Looking at the RF spectrum that signal occupied a total of 20 KHz
(10.135 to 10.155 MHz) with lines every 50 Hz within. It did indeed
look like the typical OTH radar signal to me and a quick check of
heading using the portable flag indicated it's heading was
approximately 47 degrees from my QTH near Indianapolis. Also checked
using some web based SDR receivers and it was very strong in Europe
too. A heading of 47 degrees from my QTH put it on a line right
through England, Belgium, bottom corners of Austria and Germany as
well as Israel (which was probably just a coincidence) and Saudi
Arabia, as well as the bottom of Newfoundland. Since it was a Skywave
signal and I just did a real quick heading check my 47 degree reported
heading is just a ballpark value so take it with a grain of salt. It
was on at 0224 UTC when I first checked but it's now 0300 UTC and it's
no longer present.
Just FYI,
Don wd8dsb
On Tue, Oct 10, 2023 at 9:54 PM Pete Smith N4ZR <pete.n4zr@gmail.com>
wrote:
at 0114Z, a signal suddenly appeared in the FT8 segment of 30M,
every 50
Hz from top to bottom. As I write this it's still there. I presume
another radar?
--
73, Pete N4ZR
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