What vehicle makes a high pitched pip and radio type noise

[Mabbs9]

A vehicle is parking, out of sight of my house, from time to time. I hear a high pitch pip sound, followed by radio type transmissions. It's a bit annoying late evening in the summer. More annoying not knowing what it is.

Police type vehicle? Any thoughts?

[s p a c e m a n]

Taxi. He either lives near you, someone near you has a radio car to and from work or he sells skunk.

[DonkeyApple]

Mabbs9 said:

A vehicle is parking, out of sight of my house, from time to time. I hear a high pitch pip sound, followed by radio type transmissions. It's a bit annoying late evening in the summer. More annoying not knowing what it is.

Police type vehicle? Any thoughts?

Like a warning pip that its in reverse and the when it starts moving back it emits in essence 'white noise' possibly in a pulsing fashion?

[KTF]

Do you mean a 'pulsing' white noise type sound? They are pretty common on the supermarket home delivery vans that are used now.

Meant to be easier to place where the sound is coming from compared to the traditional beeps.

[Mabbs9]

It sounds a bit like a reversing type warning, taxi waiting about a possible. It's behind tall trees so never get to see it. Not the end of the world but hard to work it out. Not like the white noise type sound of electric airport buggys and stuff. A definite sharp pip type sound.

Don't think there's a huge market for skunk near here and would be a little unsubtle if that's what they're doing.

[poing]

[Mabbs9]

That was my next thought Poing! Did I mention the time I was abducted? Defo linked I'd say.

[TheEnd]

I think I know the one, there's some clifford type aftermarket alarms which have the horrible "warn" feature and make a noise if you get close.

[Mabbs9]

That could well be it, that or aliens then!