[App_rpt] URI's and RFI == strange problems!

[David McGough]

Hello Everyone,

I encountered the most bizarre problem yet with app_rpt and URI's tonight.  

While using my new HF remote base and VHF remote base simultaneously,
app_rpt consistantly got really confused. After a fresh asterisk start, I
could try to connect to the HF node. While connecting, app_rpt would
simultaneously disconnect! --So, I'd hear the connected message and a
disconnected message at the same time! Then, I couldn't connect to the
node again, and sometime couldn't connect to VHF node, either.

This problem has been happening very intermittantly for a month now and I
couldn't find what was causing it. But, it hadn't been severe enough to 
really get my attention.

While searching thru the config files trying to figure out what I'd 
broken, I happened to notice this kernel message:

kernel: hub 2-0:1.0: port 6 disabled by hub (EMI?), re-enabling...

So, I experimentally put ferrite split cores around each USB cable, right
at the URI--And the problem instantly disappeared! Eureka!!

So, if anyone sees flakeyness or other strange URI problems that come and
go, RFI could be the cause!

73, David KB4FXC