Interference

[pwdrive]

I've been searching for stuff about man made radio interference on the web, specifically polarization, not a lot out there about it but what there is seems to suggest that the interference is mainly vertically polarized, anyone one know why that would be? Vertically polarized that is.

 
Also posted on UKVRR

Lawrence.

[Murphyv310]

Hi Lawrence.
No doubt there is an explanation for interference to be vertically polarized.
I do remember in my early days in the TV trade that customers that used the local transmitter from Ayr on channel 2 suffered far less interference even on fringe reception than those on channel 3 from Kirk "o Shotts. Ch2 was horizontally polarized and 3 was vertically polarized.

[AlanBeckett]

Is it anything to to do with the plethora of LED and CFL Lamps most of which are Vertically mounted?

Alan

[pwdrive]

Is it anything to to do with the plethora of LED and CFL Lamps most of which are Vertically mounted?

Alan

I don't know Alan, references I've found on the web mainly refer to the old style vehicle ignition interference and they all seem to say that it was mainly vertically polarized, there might be a simple answer somewhere, only thing I can think of is that it's multi polarized and that the horizontal part is less likely to reach the receiver/antenna for whatever reason.

Lawrence.

[Murphyv310]

Maybe because British cars were mostly fitted with plugs sitting vertically.
Perhaps in Germany it was horizontal interference as those VW cars had a flat 4 engine!

[Radio Fixer]

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