Tom,

I've been flying with a USBbuddy for 3 years - it's powering my iPhone 6. It has not interfered with my Becker AR4201 at all.

Before buying the USBbuddy I had first tried battery packs (one with an on/off switch), and found that my radio broke squelch on all frequencies.

-John, Q3

On Wednesday, September 27, 2017 at 1:53:12 PM UTC-4, wrote:
So I recently got a dashcam for my crew vehicle and am trying to find a power supply that doesn't break squelch and introduce a crapload of noise into all receptions... The one that came with the camera and a couple others I tried also made my FM radio near useless for weak stations.

I sent an email to Powerwerx about this adapter and the response was that it is a lot cleaner than most. And since these guys are in the ham radio biz, I would expect they understand RF interference. I'll order one and see if it works in my truck and report back.

5Z