SDR is technology

>>58703483
http://www.sigidwiki.com/wiki/Signal_Identification_Guide

>>58703499
already checked that, but found nothing like it.

It's strange that it's mostly FSK modulations (directly modulating the HF) but what I received is audible when demoudlated with FM (also it's symmetrical in the spectrum)

other FSK modulations like RTTY would need to be demodulated with SSB and then fed into a Teletype (for AFSK demodulation).

Any of you guys noticed the buzzer is down?

>>58703696
omg the nukes are coming, it's because of trump!

God has seen what America did, and now he's punishing us!

>>58703573
idk 2bh. I've never seen anything like it especially in this range. I would say it was miscellaneous rf noise, but thats generally a bunch of continuous straight lines. What country are you in?

http://www.qsl.net/kb8lxc/freqlist.html

>>58703752
> miscellaneous rf noise

have a listen to the audio file, it doesn't look like noise.
The other thing next to it ("Packet data?") sound like http://www.sigidwiki.com/wiki/Binary_Interchange_of_Information_and_Signaling_(BIIS)
but only with a much longer duratoin

>>58703799
The second audio sample sounds like pager, but that's usually in the 900ish MHz range at least in the US. I've heard everything from school buses, to police, to warehouse people moving shit in forklifts on 460-470MHz. I really don't know.

>>58703483
>It sounds like some sort of afsk signal.
It sure does

>Does anyone know how to decode it
Have you tried the obvious? Just consider it a binary signal and see if you can make sense of the raw bytes.

tfw bought a R820 dongle but too stupid to do anything with it.

>>58703483
AWW YISS SDR THREAD!

>>58703882
> too stupid to do anything with it.

only because I can't decode this one signal, doesn't mean I can't do anything with it.

... RTTY, AFSK2400 (Packet Radio / APRS), 433.9 MHz temperature sensors, POCSAG pager decoding

built own antenna for SW

how can i into antennas

>>58704493
http://www.rtl-sdr.com/tag/helix-antenna/