Search found 118 matches

by JEL
Wed Apr 10, 2019 11:56 pm
Forum: RTL-SDR Discussion
Topic: is there a way to time-display pulses or alternatively stretch waterfall display
Replies: 1
Views: 152

Re: is there a way to time-display pulses or alternatively stretch waterfall display

I am not sure I understand your question, but in SDR# the "FFT Display" tab is where you adjust resolution and speeds of both the spectrum-display and the waterfall-display.
by JEL
Mon Apr 01, 2019 7:20 am
Forum: User Projects
Topic: NATO STANAG 4481 FSK KG-84 DECRYPTED !!!
Replies: 0
Views: 223

NATO STANAG 4481 FSK KG-84 DECRYPTED !!!

https://www.youtube.com/watch?v=joFENiW5FBs Video demonstration of how using AI (artificial intelligence software) can decrypt the KG-84 encryption and present the actual broadcast message in a NATO STANAG 4481 transmission. Software download links shown at end of video, but not placed directly in t...
by JEL
Tue Mar 19, 2019 12:16 pm
Forum: RTL-SDR Discussion
Topic: Improve AM reception - ATC listening
Replies: 2
Views: 333

Re: Improve AM reception - ATC listening

I would suggest you try SDR# and see if you can get better results there. Perhaps it won't make a difference with your dongle, but with the AirspyR2 the choice of software CAN make a big difference. I personally get much better aviation-reception with SDR# than SDRangel. I'm not sure why that is, bu...
by JEL
Tue Mar 19, 2019 10:02 am
Forum: Troubleshooting Help
Topic: SDRAngel and windows 10
Replies: 8
Views: 569

Re: SDRAngel and windows 10

The latest SDRangel (at the time of writing) -> https://github.com/f4exb/sdrangel/releases/download/v4.5.0/sdrangel_v4.5.0.7z Extract to a folder that is NOT a typical install-folder (the program folders are monitored by Windows and should never be used for manual installs, such as zip extractions l...
by JEL
Wed Mar 13, 2019 11:21 am
Forum: Signal Identification Help
Topic: Has anybody seen SRD433 be THIS busy before?
Replies: 1
Views: 306

Has anybody seen SRD433 be THIS busy before?

Usually I get only the traffic you can see between 433.750 to 434 MHz, but currently the band has gone bonkers with traffic. Have anybody seen anything as massive as this before (in this band)? I am guessing it's NOT a neighbor that has gone mad and gotten 100 weather-meters (although I'm sure stran...
by JEL
Mon Mar 11, 2019 5:23 am
Forum: Signal Identification Help
Topic: Pet-locator beacon at 125 kHz, or... ??
Replies: 0
Views: 183

Pet-locator beacon at 125 kHz, or... ??

Does this sound like a pet-locator beacon at 125 kHz? I googled 'beacon 125 khz' and got some web-pages talking about short-range (up to 100 meters / 300 feet) devices around that frequency. Some were beacons used for pets. Others were some kind of door-lock mechanism (key-less door-locks or electro...
by JEL
Sat Mar 09, 2019 6:19 am
Forum: Signal Identification Help
Topic: 868MHz thermostat
Replies: 2
Views: 11853

Re: 868MHz thermostat

Could be that it's encrypted.
by JEL
Sat Mar 09, 2019 6:08 am
Forum: RTL-SDR Discussion
Topic: Long USB-cable vs long antenna-cable?
Replies: 18
Views: 30705

Re: Long USB-cable vs long antenna-cable?

Thank you ab1jx :)

I'm still testing the current antenna-cable setup and so far the results are as good as I believe I can get here, so I think it's going to end up being a permanent setup.

I can't get the antenna outside, so reception options are probably very limited whatever setup I use.
by JEL
Sun Feb 10, 2019 6:33 am
Forum: Troubleshooting Help
Topic: Buzzing but no AM signal
Replies: 4
Views: 9313

Re: Buzzing but no AM signal

Looks like noise to me too.

And your noise-floor at -30 dB seems very high, so a lot of the air-signals may be under that.

You should be able to get the noise-floor down to at least -60 dB.
by JEL
Sat Feb 09, 2019 3:19 am
Forum: Signal Identification Help
Topic: 'shooting star' (mirror freq interference)
Replies: 0
Views: 8895

'shooting star' (mirror freq interference)

I was testing a new antenna I have put up and ran into the cutest little mirror frequency interference I have seen to date :) I made a 60 second long video of it and just thought I would share it here :) I am sweeping very slowly across the spectrum and it shows up a bit over half way into the video...