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Author Topic: 4100.04 KHz "H"  (Read 180 times)

Offline Teotwaki

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4100.04 KHz "H"
« on: May 03, 2021, 1355 UTC »
I was looking around with the KFS SE kiwi and spotted this beacon sending four dits
Jim
NRD-525, Elecraft KX3 and Elecraft PX3 Spectrum Display
76' end fed long wire & 66' off-center fed dipole for 10/20/40 meters
Orange County, SoCal, The better half

Offline zeak

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Re: 4100.04 KHz "H"
« Reply #1 on: May 04, 2021, 0237 UTC »
This one seems to be in and out maybe propagation maybe experimentation....also see "H and D they are back" (04_29_21) down the log. I've been hearing "H" since late September of last year from this location.

Today from this location "H" is barely copy-able, but sometimes ~0500Z it gets up to 579-589. Tonight, at 0230Z its 449 at best.

Receiver KiwiSDR
Ant: 80m dipole at 15m
location:  DM12

Offline Token

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Re: 4100.04 KHz "H"
« Reply #2 on: May 21, 2021, 0156 UTC »
Anyone notice the chirps on the dits?

T!
T!
Mojave Desert, California USA

Offline zeak

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Re: 4100.04 KHz "H"
« Reply #3 on: May 21, 2021, 0429 UTC »
Yes, I have noticed the chirps from time to time and I say that still without being able to identify whether the chirp is a product of backscatter, transition though the gray zone or an honest to goodness chirp.

Iíve determined that Beacon H is not ground wave to me at this location as is Windy and the Whooper beacon seem to be, so I treat the H beacon as something different and its signal which fades in with sunset here and fades out with sunrise indicating that it is not D-layer propagation. H beacon is kind of a puzzle to me that Iíve been playing with since first copying it in September of 2020.

Receiver KiwiSDR
Ant: 80m dipole at 15m
location:  DM12


Offline dogman

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Re: 4100.04 KHz "H"
« Reply #4 on: May 26, 2021, 1217 UTC »
This morning H is solid copy but I notice the space between the id is now very small time wise.
Also on the NUT sdr about the same signal strength as 4094