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Feel free to make comments about unidentified signals that you might know or anything else here.

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Anonymous user #1

1209 days ago

Score 0

Does ship radar penetrate houses 10 miles away?

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Arclamp

1050 days ago

Score 1

yeah it probs would

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Anonymous user #2

1201 days ago

Score 0

i need to know this mode , thanks guys

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Anonymous user #3

1136 days ago

Score 0

Just discovered this site. It is a fascinating topic of how we communicate efficiently, reliably and securely. I will be exploring the site very much. Very interesting. Thanks. 2020 August 17th 10:57 UTC

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Anonymous user #4

1124 days ago

Score 0

Genuinely awesome site, both in organization and content. Will take the mystery out of the odd collection of signals that have puzzled me for years when exploring the bands. Many thanks for your efforts!

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G8BQR

1046 days ago

Score 0

A very useful Database, many thanks.

I would like to see a Category for Electromagnetic Interference (EMIElectromagnetic interference / RFIa specific subset of electrical noise on the Electromagnetic interference (EMI) spectrum) signals added, please.

Such as HDMI (already in the database), switched mode power supply (a representative sample, or 2), Ethernet, central heating Boiler(Gas), TV emissions (LO, harmonics, etc), and so on.

It would make the identification of interference sources in my house a lot easier :-) Once I can work out how to do it I can provide samples, mostly unidentified as yet :-(

Regards, Ed

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Arclamp

478 days ago

Score -1

not the topic of this website

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Secops

1040 days ago

Score 0

Hello, I've captured a a new signal - at least to me it is - on UHFUltra High Frequency (300-3000 MHz). This was present for several days and has since disappeared. Please refer to this link at Vimeo for a sample. You may have to increase the volume. I'd like to get anyones thoughts on this.

https://vimeo.com/481448275

Thanks!

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Arclamp

983 days ago

Score 0

Not new just a channel marker

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Anonymous user #5

940 days ago

Score 0

been hearing a narrow data signal on 6.780MHz for a few weeks. any idea. its mostly heard in north america. also, after dark in north america, 4.096 or so has a narow data transmission that sounds similar to a low pitch dolphin

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WAW

940 days ago

Score 0

Do you have a recording?

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Tinkell

940 days ago

Score 0

6780kHz definitely needs a sample/pic and more information.

4095.7kHz is the Desert Whooper. https://twit...704567304208

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MikeAgner

861 days ago

Score 1

Please mark WLO in the marine section in red. That station has been gone for years. In the military section, MIL-STD-188-110 Appendix A should be in green. While the US has moved from this mode, other countries are still using it. In addition, it's used during Armed Forces Day in the US

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WAW

861 days ago

Score 0

There are still many station like WLO, with the FSKFrequency-Shift Keying idling and 3 letter morse ID. I think it should be renamed, but I am not sure what it should be called

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Tinkell

860 days ago

Score -1

Ya, we've been meaning to fix this for quite a while. I will bump it up in priority.

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MikeAgner

860 days ago

Score 1

There are still a few maritime stations that use SITOR-A but their days are numbered. The others have gone to PACTOR

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MikeAgner

844 days ago

Score 0

You can mark ARQAutomatic Repeat reQuestAutomatic Repeat Query-E(3) as dead. It hasn't been noted in years.

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Anonymous user #6

709 days ago

Score 0

2021-07-07 22:09:57 ?? satellite maybe? Answer: its a radio/ signal/ or internet or phone signal antenna it's signal sounds like that I know that because I live near 4 antennas and they have the same exact sound only the pitch sometimes change.

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Yalek W

561 days ago

Score -1

Hi guys. Since I havent been able to leave a comment here, im going to do so in a more formal fashion.

Just as a fair warning to all who are paerticipating here, I will be adding on to the main page to provide some policies that I have been trying to get on here with Cartoonman's permission through the use of the trello I have up, that will be tailored at how we need to ensure this wiki's validation at sources, and its pages. This is very big because this will help clear out a lot of junk that has been left behind. For example, I will be spending more time this week, hopefully, moving unid signals to the ID's section, ID signals to the UNID section. Some pages ive seeen are very misleading, or were never formed. So it would be best if that happened.

Not only this, but there will also be additional policies targeted on how you should post signals.

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Anonymous user #7

461 days ago

Score 0

dude you were literally banned from all the servers... you aren't implementing nothing.... literally look at https://www....i/User:Mbeam

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Anonymous user #8

519 days ago

Score 0

Hey guys is there any way I can join the discord server?, I recently sent an email to join the discord server and I haven't received a response, what should I do?

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Anonymous user #9

489 days ago

Score 0

ON RECENTLY ADDED SIGNALS 2022-03-26 06:44:29 "POWER LINE OVER INTERNET".

SHOULD BE "INTERNET OVER POWER LINE", OOPS.

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Yalek W

159 days ago

Score 0

wha huh? I made that signal but i didnt realize it was incorrectly named. Thanks for resssuring that!! I will request a name change.

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Anonymous user #9

489 days ago

Score 0

NOW MY BAD, SHOULD HAVE SAID "ETHERNET" NOT INTERNET. OOPS OOPS.

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Anonymous user #10

465 days ago

Score 0

Does anyone have Signals Analyzer (Signals Analyzer 6.2.6.7) download link?

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Yalek W

159 days ago

Score -1

that software is probably one of the best pieces of software for these purposes. https://www.magesy.blog/. Unfortunately, this isnt free software sadly :C...

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Anonymous user #11

453 days ago

Score 0

h

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Anonymous user #12

412 days ago

Score 0

Has anyone identified Inmarsat's Fleet Broadband or Fleet Xpress transmission set up yet? Even any info regarding the withdrawn Fleet 77 service, Sat A and B are obviously now long gone.

My preference is it all should have stopped with W/T on 500 kHzKiloHertz (kHz) 10^3 Hz but progress is inevitable I suppose!

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Anonymous user #13

385 days ago

Score 0

Q: - I am trying to decode some audio from a game. It looks a lot like it is a modulated ( I worked with radio at one point) structured signal. -- Anyone have recomendations on simple Analysis software (like a spec an and/or demod decoder) that would be easy to use with a soundcard? I dont have an SDR dongle but I guess I could buy one.

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Yalek W

159 days ago

Score -1

do you have the audio file on you so we can view it? I could try to make an assumption (it may not be correct) based off the audio spectrum.

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Anonymous user #14

299 days ago

Score 0

Your template says "ACFAutoCorrelation Function" but doesn't explain what that means. Please link it to an explanatory article or expand the abbreviation. Google says it might stand for "autocorrelation function"?

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Cartoonman

297 days ago

Score 0

That is correct, ACFAutoCorrelation Function stands for Auto-Correlation Function. It's also defined in the terminology page: https://www..../Terminology

Abbreviations on the wiki should show their meaning if you mouse over them as well.

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Anonymous user #15

248 days ago

Score 0

What copyright applies to the uploaded audio files? it would be good uploaders agreed to have it under Creative Commons. I want to use the HFHigh Frequency (3-30 MHz) audio to add QRM noise to morse code audio while training a neural network to decode it.

ie a python program downloads all the audio for HFHigh Frequency (3-30 MHz) and converts to WAV files. Later while triaing the network a lowlevel lopping version of the audio is then added to morse code audio along with static noise. The result along with the text version of the morse code is then used to train a neural network.

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Arclamp

232 days ago

Score 0

There is no copyright. you can use them

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Yalek W

159 days ago

Score 0

yeah these signal audio files are not under any licenses due to the fact they were user-provided audio files either directly from the SDR software they used. It wouldnt actually be appropriate to call copyright to a page or audio file because on this wiki anybody is able to edit these signals...

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Anonymous user #16

224 days ago

Score 1

Could you please add something to explain what ACFAutoCorrelation Function stands for on the pages? Specifically I am looking at the DMR page and in the right sidebar it says ACFAutoCorrelation Function Frame: 60 msmilliseconds (.001 of a second), Slot: 30 msmilliseconds (.001 of a second)

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Anonymous user #16

224 days ago

Score 1

(Replying to my own comment)

I see there is another commenter asking about the same thing. The mouseover doesn't seem to be working on the DMR page so I could not see the information.

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Cartoonman

214 days ago

Score 1

Mouseover should tell you what ACFAutoCorrelation Function stands for (Autocorrelation Function). Otherwise you can visit the Terminology page to see acronym definitions.

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Yalek W

159 days ago

Score -1

So im apparently fixing some pages to ensure their accuracy is good enough.

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Yalek W

159 days ago

Score 0

I also found out (and I announced this on EOTD page), that HOTD uses the very same protocol. The difference is the data that gets sent between the units.

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Anonymous user #17

42 days ago

Score -1

Is there a reason this website uses mediawiki release from 2013-2014?

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Anonymous user #18

33 days ago

Score 1

yes

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