Comments

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

Enable comment auto-refresher

Anonymous user #1

1854 days ago

Score 0

Does ship radar penetrate houses 10 miles away?

Permalink | Reply

Arclamp

1694 days ago

Score 1

yeah it probs would

Permalink

Anonymous user #2

1845 days ago

Score -1

i need to know this mode , thanks guys

Permalink | Reply

Anonymous user #3

1781 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

Permalink | Reply

Anonymous user #4

1768 days ago

Score 1

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!

Permalink | Reply

G8BQR

1691 days ago

Score 1

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

Permalink | Reply

Arclamp

1122 days ago

Score -1

not the topic of this website

Permalink

Secops

1685 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!

Permalink | Reply

Arclamp

1628 days ago

Score 0

Not new just a channel marker

Permalink

Anonymous user #5

1585 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

Permalink | Reply

WAW

1585 days ago

Score 0

Do you have a recording?

Permalink

Tinkell

1585 days ago

Score 1

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

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

Permalink

MikeAgner

1506 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

Permalink | Reply

WAW

1506 days ago

Score 0

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

Permalink

Tinkell

1505 days ago

Score -1

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

Permalink

MikeAgner

1505 days ago

Score 2

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

Permalink | Reply

MikeAgner

1489 days ago

Score 0

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

Permalink | Reply

Anonymous user #6

1354 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.

Permalink | Reply

Yalek W

1206 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.

Permalink | Reply

Anonymous user #7

1106 days ago

Score -1

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

Permalink

Anonymous user #8

1163 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?

Permalink | Reply

Anonymous user #9

1134 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.

Permalink | Reply

Yalek W

803 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.

Permalink

Anonymous user #9

1134 days ago

Score 0

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

Permalink | Reply

Anonymous user #10

1109 days ago

Score 0

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

Permalink | Reply

Yalek W

803 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...

Permalink

Anonymous user #11

1098 days ago

Score -1

h

Permalink | Reply

Anonymous user #12

1057 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 but progress is inevitable I suppose!

Permalink | Reply

Anonymous user #13

1029 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.

Permalink | Reply

Yalek W

803 days ago

Score 0

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.

Permalink

Anonymous user #14

944 days ago

Score 0

Your template says "" 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"?

Permalink | Reply

Cartoonman

942 days ago

Score 1

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.

Permalink

Anonymous user #15

893 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 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.

Permalink | Reply

Arclamp

877 days ago

Score 0

There is no copyright. you can use them

Permalink

Yalek W

803 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...

Permalink

Anonymous user #16

869 days ago

Score 1

Could you please add something to explain what stands for on the pages? Specifically I am looking at the DMR page and in the right sidebar it says Frame: 60 , Slot: 30

Permalink | Reply

Anonymous user #16

869 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.

Permalink

Cartoonman

859 days ago

Score 1

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

Permalink

Yalek W

803 days ago

Score -1

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

Permalink | Reply

Yalek W

803 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.

Permalink | Reply

Anonymous user #17

687 days ago

Score 0

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

Permalink | Reply

Anonymous user #18

677 days ago

Score 0

yes

Permalink

Yalek W

644 days ago

Score -1

I originally made an announcement to delete my account off of here but since nobody seemed to care or notice im just gonna stay then...

Permalink | Reply

Anonymous user #19

643 days ago

Score 0

If no one cared about that, what makes you think anyone would care about this?

Permalink

Yalek W

610 days ago

Score -1

Anonymous #17 The reason this site still uses the 2014 release of mediawiki is because we havent gotten around at modifying the version. The admin of this site is on hiatus and just got the new server up and running before the hiatus.

I would also highly recommend the anonymous users make actual user accounts so this way we know who you are. Its a security issue if that doesnt happen.

Permalink | Reply

Yalek W

590 days ago

Score 0

This was posted due to the amount of variants of "SCADA" that I am starting to norice on this wiki, and was also posted in the discussions page of the ID section..

Is it alright if I make SCADA a special page because that signal has MANY MANY MANY variants that need to be addressed there? I have seen so any variants posted that I want to start merging data into the SCADA page itself. MOSCAD, the BalDR sensor, Electric meters, anything that relates to data acquisiton...

Permalink | Reply

Anonymous user #20

526 days ago

Score 0

I know there's a category list on various pager (POGSAC et al) pages. Maybe you could do something like that?

Permalink

Anonymous user #21

585 days ago

Score -2

i wish cats were real

Permalink | Reply

Yalek W

538 days ago

Score -1

FOR THOSE who are visiting the site as of recent, we have experienced a bug where the actual limit of signals are truncated to 500 entries only. not to worry, the others are actually *hidden* on the bottom of the page...just not on the database.

Also, for firefox users, you may experience file uploading and general edit issues maybe saving...

Permalink | Reply

Yalek W

516 days ago

Score -1

a variant of the CRY2001 voice scrambler has been recently found by Elijah Hamilton.

Permalink | Reply

Anonymous user #22

401 days ago

Score -3

1

Permalink | Reply

Anonymous user #23

383 days ago

Score 1

Can someone please identify the QRM I have in Thailand. Please find the video here: https://www....ux&t=429

It's been years I try to figure out what is the source.

Permalink | Reply

Emcbro

382 days ago

Score 1

If you mean those downwards sweeping signals, they are likely interference from welding and heating processes. Also known as "hooks", "fish hooks", "sweepers" and possibly with other names.

Permalink

Ittryn

175 days ago

Score 0

Emcbro is correct, these are called fish hooks. When they are wide band (and I mean VERY wide band, like 0.5-3 MHzMegaHertz (MHz) 10^6 Hz wide) they are usually from natural sources (e.g. lightning interference & lightning scatter, solar storm activity/solar EMP, etc.). When there is only one narrow-band signal, it is often caused by RFRadio Frequency heating and welding equipment nearby, these devices are used often in industry, particularly manufacturing. RFRadio Frequency Generators are often a likely culprit as they are often installed by non-electricians and they are usually poorly maintained if any maintenance is done at all. In this case there are many narrow-band signals which all follow the same curved, fish-hook pattern. This can also be from the same RFRadio Frequency heating equipment, or it could be a source of local interference. The power supply to the receiver could be the culprit. Furnaces, water heaters, air conditioning units, refrigerators and other motorized appliances which are intended for continuous-use are other likely suspects.

See the signal ID wiki page for RFRadio Frequency heating interference here: https://www....interference

Also, take a look at these pages for mitigating interference at your station:

https://www....M4LHZ_v9.pdf

https://www....rference-rfi

Permalink

Anonymous user #24

162 days ago

Score -2

I've got sourcerer and wcode for sale. For more information please contact me at:

[email protected]

Permalink | Reply