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RFI from LED lights

MikeD

I'm planning to build a garden room to house my amateur radio equipment.

Naturally I'd like it to be as energy efficient as possible but I'm aware that LED lighting has a reputation for generating interference across the HF bands.

Any suggestions on how to minimise this please?

Mike G8GYW

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    Andy C: 
     

    I tried an experiment by running my hf rig off a battery and knocking off the mains supply to my house to see if there was any reduction in noise on the hf bands. Unfortunately not, though whether some of the issue might have been noise coming in on the mains earth (PME and overhead supply cables) I didn't check. I am also looking at supply options for a future garden shack which will be about 50m away from the house and am seriously thinking about batteries topped up by solar without any mains connection to the house, however this will be right beside a local ground mounted transformer supplying a number of houses in our road. I know the things are supposed to be totally screened but wonder how much ‘noise’ might be escaping from it or the adjacent fuse cabinet.

    Andy G1BED

     

    Hi Andy, 50m is certainly a long way to be running a mains cable. Think of all that digging!

    Our supply tranformer is 150m from the house and the substation is 220m. The pylon cables (which I presume are 133kV?) run down the middle of our street so with that and VDSL it couldn't be much noisier!

    Mike G8GYW

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  • 0

    Andy C: 
     

    I tried an experiment by running my hf rig off a battery and knocking off the mains supply to my house to see if there was any reduction in noise on the hf bands. Unfortunately not, though whether some of the issue might have been noise coming in on the mains earth (PME and overhead supply cables) I didn't check. I am also looking at supply options for a future garden shack which will be about 50m away from the house and am seriously thinking about batteries topped up by solar without any mains connection to the house, however this will be right beside a local ground mounted transformer supplying a number of houses in our road. I know the things are supposed to be totally screened but wonder how much ‘noise’ might be escaping from it or the adjacent fuse cabinet.

    Andy G1BED

     

    Hi Andy, 50m is certainly a long way to be running a mains cable. Think of all that digging!

    Our supply tranformer is 150m from the house and the substation is 220m. The pylon cables (which I presume are 133kV?) run down the middle of our street so with that and VDSL it couldn't be much noisier!

    Mike G8GYW

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