Hi Michael,

Thanks for the information to test the URI.  It does not seem the URI is the issue.  I have swapped the URIs with new ones and they all did the same thing.

I believe this issue is with the PC hardware or software.  Might be a USB bus problem.  I will look further into it.




boB - W5EVH


On Fri, Feb 7, 2014 at 7:45 PM, Michael Hebert <mhebert1975@gmail.com> wrote:
You can try the uridiag  program.

Q: How can I test my URI? 
A: Download the uridiag program located at 
Un-tar it and then ‘make’ it. Run ./uridiag and select option C. That will tell you how to make a 
loop-back connector for running the diagnostics. This is the same program we use to test each 
URI before it leaves the factory. 
 
Q: How can I make a loop-back cable to test my URI? 
A: Get a male DB-25 connector such as L717SDB25P from www.digikey.com . Then wire up 
the following connections: 
Pin 1 to Pin 7 
Pin 2 to Pin 3 
Pin 4 to Pin 8 
Pin 23 to Pin 24 
10K Resistor between Pins 21 and 22 
10K Resistor between Pins 21 and 23 
For URIx (CM119) only, also include the following connections: 
Pin 5 to Pin 10 
Pin 6 to Pin 11 



On Fri, Feb 7, 2014 at 3:22 PM, Bob Roszkowski <bob@w5evh.org> wrote:
Group,

I have a site that is acting strange.  I have a server with a VHF(Mastr II) and UHF(TKR-850) repeater, each with a URI.  Both repeaters are linked together locally.  I noticed while someone is using the machine, the TX will just stop while they are talking.  If I switch to the other repeater, the TX is working fine.  The URIs Red LED goes out.  This happens to both machines.   I have swapped and changed URIs and cables with no change.  Any ideas?

boB - W5EVH

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