So, I know I've got other threads somewhat related to RFI - or at least antenna issues and trying to deal with related RFI issues.
But, I took some time this afternoon to shut down the breakers and run the radio on battery power to see what I have for on-premise noise and what is off-premise noise.
First off, there is indeed power company noise. Here is the clip (attached) of what I'm hearing while running on battery power and the main's shut off.
As a side note, my service entrance is almost 300' from the power pole/transformer and underground from the pole to the house. The Electric companies transformer is up the pole. So the 300' doesn't include the climb through the conduit along the side of the pole. Let me know your thought's on the attached mp3.
Now for inside the house. oh my, I can't believe how much hash and noise I'm getting. A Raspberry PI wall wort is creating the most noise and is radiating all the way outside the house! Not sure what is wrong with it...but I'll have to look at replacing.
Do the Ferrite Chokes (mix 31) help with this on the DC power side of the wall worts? Or is it really a rip and replace kind of solution?
The reason I ask, some of the wall worts are harder to replace for some more proprietary connectors on other equipment. Although they're not as bad as this particular switching power supply, they are making noise too.
At any rate, I can see that this is going to be a long,long journey to remove all the noise makers. I can't believe how much noise is created by all these electronics in the house. I'm already pulling my hair out trying to track all this stuff down.
Now I understand way some Hams like to take to low power (QRP) camping in the woods so they are well away from all this noise...
-J
But, I took some time this afternoon to shut down the breakers and run the radio on battery power to see what I have for on-premise noise and what is off-premise noise.
First off, there is indeed power company noise. Here is the clip (attached) of what I'm hearing while running on battery power and the main's shut off.
As a side note, my service entrance is almost 300' from the power pole/transformer and underground from the pole to the house. The Electric companies transformer is up the pole. So the 300' doesn't include the climb through the conduit along the side of the pole. Let me know your thought's on the attached mp3.
Now for inside the house. oh my, I can't believe how much hash and noise I'm getting. A Raspberry PI wall wort is creating the most noise and is radiating all the way outside the house! Not sure what is wrong with it...but I'll have to look at replacing.
Do the Ferrite Chokes (mix 31) help with this on the DC power side of the wall worts? Or is it really a rip and replace kind of solution?
The reason I ask, some of the wall worts are harder to replace for some more proprietary connectors on other equipment. Although they're not as bad as this particular switching power supply, they are making noise too.
At any rate, I can see that this is going to be a long,long journey to remove all the noise makers. I can't believe how much noise is created by all these electronics in the house. I'm already pulling my hair out trying to track all this stuff down.
Now I understand way some Hams like to take to low power (QRP) camping in the woods so they are well away from all this noise...
-J