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Author Topic: Ditter 4094 CW 1204 UTC 28 Feb 2020  (Read 254 times)

Offline ChrisSmolinski

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Ditter 4094 CW 1204 UTC 28 Feb 2020
« on: February 28, 2020, 1208 UTC »
I was looking for HI on a NV KiwiSDR, and instead found something sending a dit about every second or so. Fairly weak. I had a stronger signal on an AZ KiwiSDR, but it also had a stronger signal from Windy, so I would not draw any QTH conclusions.
Chris Smolinski
Westminster, MD
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Offline Token

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Re: Ditter 4094 CW 1204 UTC 28 Feb 2020
« Reply #1 on: February 29, 2020, 1302 UTC »
Chris, is this on a freq of about 4093.95 kHz, with a dit about 225 msec long and about every 2.375 seconds (~25 / sec)?

I saw this either last night or the night before, but it was weak enough I was not sure about it.  This morning I have it running about S4 or so.

(edit) Around 1400 UTC I noticed the 4094 ditter was not there any more.  It could have faded with conditions, but it had been pretty strong and then no sign of it at all.  Sunrise was approaching, although still a way away for me at my location.  Possibly the source is further east from me, and shut off or shifted freq on its local sunrise?  I checked up around the general daytime freq for the HI beacon, and sure enough, there is a similar ditter on 8009.64 kHz.  A bit faster dits, but similar, possibly the same ditter having moved freqs.  Could this be related to HI?  Or is it another beacon that switches freqs night and day?  Unrelated signals?  Since I did not hear HI on 4094 while the ditter was active, and I don't hear HI now on 8009, I think it is a pretty fair possibility that HI is now sending dits instead of HI.

T!
« Last Edit: February 29, 2020, 1443 UTC by Token »
T!
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Offline DYGradio

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Re: Ditter 4094 CW 1204 UTC 28 Feb 2020
« Reply #2 on: April 05, 2020, 0249 UTC »
Have  a ditter here this evening, around one per second. Was checking for Windy and saw it in the waterfall. 4094.03 CW 02:45 UTC 05 Apr 2020

Windy very strong and solid with telemetry (TMP 68 B 119), this ditter about half the strength of Windy with some fading.
Ron
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Offline Teotwaki

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Re: Ditter 4094 CW 1204 UTC 28 Feb 2020
« Reply #3 on: April 09, 2020, 1458 UTC »
I try to check for this ditter at different times of day but no luck yet. Will have to try checking some SDRs and then the physical radio.
Jim
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Orange County, SoCal, The better half

Offline DYGradio

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Re: Ditter 4094 CW 1204 UTC 28 Feb 2020
« Reply #4 on: April 10, 2020, 0247 UTC »
Its back this evening - 02:46 UTC 10 Apr 2020
Ron
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San Tan Valley, AZ
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Icom IC-R8500/IC-718/Airspy HF+/Hammarlund HQ-180A
Vertical, longwire, homebrew shielded loops and other experimental antennas.