RadioFeed 436 noise weird

[w9zro]

Hello all i have had my feed up for years. but i recently wanted to add meta data to it.. when i plug the radio (uniden 436) into the usb port for metadata the feed is noisy as all get out. if i just run the feed without the radio plugged into the usb port and into the power supply no noise at all.. i have tried numerous cables and 3 diffrent computers. im stumped. i did try a search and came up with nothing any ideas

 

[phask]

Hello all i have had my feed up for years. but i recently wanted to add meta data to it.. when i plug the radio (uniden 436) into the usb port for metadata the feed is noisy as all get out. if i just run the feed without the radio plugged into the usb port and into the power supply no noise at all.. i have tried numerous cables and 3 diffrent computers. im stumped. i did try a search and came up with nothing any ideas

You need an isolation transformer - search, very common issue.

 

[w9zro]

thanks i read that and wasn't sure now i got to do more searching lol

 

[mule1075]

You need an isolation transformer - search, very common issue.

For a audio connection yes quite common. Never heard of it when hooking up the usb cable.

 

[w9zro]

the noise is only when the usb is plugged in for meta data im gonna the isolator just for grins and giggles

 

[w9zro]

welp I think i figured it out i put more ferite chokes on the USB cable and also found out that the one USB port was only putting out 3.13 Volts so after i changed USB ports and the chokes it is better not perfect but better thanks to all for ideas