7 to 28 Mhz : What this noise ?

[KC8YOQ]

Frequency sweeper!

[ipaqmaster]

I think its a charger. sounds funny

[Aviator14]

Switching Power supply or battery charger

[rabotayet]

Sounds like an electrical security fence.

[Freelanderista]

I have also ft2000.and also the same noise!

I receive this noise only when antenna is connected, this noise does not come from my house.

You have found then the source of the noise?

73

IZ1LAT

Claudio

[teflondon91]

Try getting rid of other electronic devices around the radio till you find the culprit... as someone else suggested it's probably RFI off a DECT phone or a phone charger. You might to switch back to an analog or hardline phone if you can't isolate the noise.

[simpleRX4DX]

Hi,

first of all congrats, that this noise has disappeared from your shack. I have the same noise here. It comes from my DECT phones. Noise only appears, when the phone is connected to the docking station. So it might be the battery charger of that station.

73 de simpleRX4DX

[mukatuna]

As others have pointed out, it sounds very much like a switch-mode mobile phone or battery charger.

[pd0rkc]

F8BBL put all of the plugs of all your electronic equipment out the wall and check if the noise is gone, and give us here the solution so others will learn.

73's Cor PD0RKC

[330AS012]

I think that is noise from Nokia cell phone charger.

[330AS012]

It can be Nokias cell phone charger. I had this same here...

[zzxxenith]

AAA Battery charger

[indiejeep]

That's terrible! Yuck!

[Sniped505]

This might be BPL (Broadband over Power lines) This seems like the power companies testing BPL?

[F8BBL]

Now the noise has disappeared

[duranfan70]

Salut,

chez moi aussi depuis une semaine,le mème type de qrm S9+10 sur certaines bandes..,style bruit " parc a vaches"mais en plus rapide et pourtant je me situe en pleine campagne!!!

73'de f4fnh.

[PA9B]

Very strange indeed, I haven't heard it myself.

[battlestarone]

i have had this in the past,never got to find out the source then it went away,it was very broadband.

best of luck

[vpork]

Salut, chez moi aussi, toujours la meme chose sur mon ft-950.(peux moin rapide)

Avec le NB sur 256 (a fond)ces moin, mais encore assez pour devenir FOU.

[VictoreCelia]

funny noise... strange.