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Author Topic: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017  (Read 885 times)

Offline ChrisSmolinski

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Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« on: December 10, 2017, 1759 UTC »
This just faded in. I suspect this is a real beacon vs RFI, due to the chirp. The period seems to be about 4 seconds.
Chris Smolinski
Westminster, MD
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Offline ChrisSmolinski

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #1 on: December 10, 2017, 2001 UTC »
Now at 2001z, dits on 13559.3 kHz. not sure if beacon or just random RFI, they look clean. And now a minute later, gone.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 120 ft T2FD/ 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline ChrisSmolinski

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #2 on: December 10, 2017, 2224 UTC »
The dits on 13559.3 are fading in and out again, 2224z.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
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Offline ChrisSmolinski

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #3 on: December 11, 2017, 1456 UTC »
And a few more chirps heard at 1456z 11 Dec 2017 on 13558.47 kHz.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 120 ft T2FD/ 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline ChrisSmolinski

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #4 on: December 11, 2017, 1543 UTC »
The dits on 13559.32 re-appeared as well around 1530z for a few minutes.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 120 ft T2FD/ 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline Ed H

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #5 on: December 11, 2017, 2218 UTC »
In the past, I've heard similar chirps at regular intervals. It seems like they should be a beacon, but there is no obvious indication. Quite often they were strong enough to be audible, not just a Spectrum Lab trace.


Offline Strange Beacons

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #6 on: December 12, 2017, 0022 UTC »
The signal is still going strong at 13559.3 kHz, as of 00.20 UTC.

Give it a listen to here.

Offline ChrisSmolinski

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #7 on: December 12, 2017, 0158 UTC »
Yes, I have it on 13559.33 (AirSpyHF+ which is not GPS locked, so no idea yet how accurate it is). Dits every 3 or 4 seconds.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 120 ft T2FD/ 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop / Discone in a tree

Offline ChrisSmolinski

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Re: Chirpy dasher 13561.3 1754 UTC 10 Dec 2017
« Reply #8 on: December 12, 2017, 1659 UTC »
Several curious signals on 22m around local noon:

A dasher is fading in and out around 13558.2 kHz.

I also saw another (weaker) with a chirp around 13562 (did not note the exact frequency before it faded out).

Double dits on 13556.4 kHz. Not sure if it is supposed to be an I, as the spacing between the dits seems a little variable.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 58 ft T2FD / 120 ft T2FD/ 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop / Discone in a tree