[OZAPRS] VK2XSE IGate

[Ray Wells]

The wifi (both dongles tried) connected to a powered hub (on the RPi ok 
list) which had a 2.5A plug pack.

There's much on the net about the fragility of the USB ports (and 
ethernet which, internally, is also really USB) on the Pi and there are 
many methods suggested to "fix" those problems, none of which worked for 
me. I think the solution is to ensure as close to 5v on the USB ports as 
possible, without exceeding 5.25v (USB spec upper limit) input to the 
RPi. The supply needs to be clean - check with a CRO.

Ray vk2tv

On 05/02/14 21:11, Jason Ball wrote:
> Pi's are extremely sensitive to voltage problems and bad power 
> supplies.   I've helped a number of people with Pi projects and found 
> it's the most common cause of problems.   Its even worse if you have 
> wifi drawing power from the USB port.
>
> A bad power supply will cause problems, without fail.
>
>
>