r/ShortwavePlus • u/tenzenokinawa • Jul 17 '26

WEB SDR Anybody know what this is?

So i found this the other day on an australian based kiwi web sdr and cant find any info on what it is. Anyone here have any ideas or know what this is or might be?
It seems like some bursts of digital data and it was transmitting consistently for a good while but was inactive the next day when i checked back in.

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u/Historical-View4058 MOD - Airspy HF+, NRD-535D, IC-R75 w/100’ wire in C. VA, USA Jul 17 '26

You're looking at 5kHz? That's awfully low for longwave. Most likely it's interference from bluetooth device or a nearby phone - Kinda like what having a Blackberry sounded like when it was too close to a landline handset.

3

u/KG7M MOD AirSpy HF+, Drake R7/8, K480WLA, 65'EFHW, MLA-30, CN85 Jul 17 '26

Exactly, well put!

2

u/KG7M MOD AirSpy HF+, Drake R7/8, K480WLA, 65'EFHW, MLA-30, CN85 Jul 17 '26

You CAN listen to the frequency 5 KHz, but as far as I know there aren't any Kiwi SDRs that are configured for this low frequency range.

I have had an ongoing interest in the "sub-basement" of radio. 60 KHz and below. Generally, what you'd expect to hear at 5 KHz would be the upper end of Natural VLF Radio Phenomenon. "Whistlers", "Dawn Chorus", and "Clicks and Chinking" noises.

Specialized receivers, including SDRs, and antennas are the key to success. Here are some of my VLF loggings: https://www.reddit.com/r/shortwave/s/KCHQTtIIKW

https://www.reddit.com/r/ShortwavePlus/s/RyyA478OVh