A slant on RFI


The sun is 93 million miles away and it radiates among other things RFI.

There is no barrier to this Radio Frequency other than the earths atmosphere and a 1/4 inch glass window, behind which my HIFI rig sits.

Today I was playing a stream from Qobuz and had a call on my mobile. So I paused the stream.

It was a long call and during this time the sun had gone below the horizon.

I resumed the stream and was immediately aware of an improvement in SQ. More bite , more clarity -All the usual improvements we expect when having an upgrade.

I have ,  as many have noticed difference between night and day listening , often attributed to less "busy" power supply.

What I experienced was like night and day , but I can't quantify it , it is purely subjective.

 

bobby1945

Showing 2 responses by bobby1945

Electrical Power from any source but in most cases originates from a remote power station -The transmission cable is not continuous but is broken in many places.

The energy is transferred by the oscillating electric and magnetic fields surrounding the cable. 

Light from the sun also transfers energy in the same fashion namely oscillating electric and magnetic fields.

Would it not be possible that interference occurs when these fields intersect ?

Resulting in perceived changes to audio quality.

An addendum to my post - Of course I neglected to include the power transmission lines which are of course unshielded.

They too will be subjected to bombardment of RFI -But only during the day.