Cell phone emissions to scanner

[ind224]

Coming in from the back yard I'm carrying my S9+ Pro 97 and binoculars and the scanner starts making stupid sounds and stops on 127.8. I move the phone away and scanning restarts and I put the phone next to the scanner bam 127.8 and noises. Just an FYI for all running portables. I will have to see if the phone was doing anything but being idle (FR24 might have been running) and if other freqs are affected.

 

[ATCTech]

Internally, "idle" and powered on are two different things. The processor(s) etc. are active with oscillators whirring away providing CPU and memory clock/timing signals constantly.

My laser printer, in another room even in it's "sleep" state, needs a power line filter to knock down noise it feeds into the electrical wiring of the house that can be heard on the lowest HF bands.