[evlatests] Antenna 18

[Rob Long]

The L305 in antenna 18 was definitely out of sync.  I had cycled power 
on the L305 while troubleshooting a "no 9.6 Hz signal" to the frontend. 
  The problem was actually a pushed pin in the FE rack, but I forgot to 
resync the L305 when I was finished.  Sorry!

The L302-1 had been swapped the day before, but seemed to be working 
fine while I was in the antenna.

Rob

Jim Jackson wrote:
> After conversations with Pete, and his subsequent conversations with 
> Barry, we are going to leave the new L302 synthesizer in the antenna for 
> further testing.  It is not clear what state the antenna was in on 
> Thursday when some tests were run.  There is evidence the antenna may 
> have been out of sync.  The MIB and DDS FPGA firmware changes to this 
> module were drastic and it may take some time for Barry, Ken and others 
> to sort out everything.
> 
> Also, Mike discovered that the IF-C DTS module seems to be very unhappy. 
> It is acting like it has no clock but since the IF-A module is working 
> and no one has been in that rack, we believe the clock should be 
> present.  The assumption is that the module itself has a problem.  The 
> DTS team is going to the antenna to install the IF B&D DTS modules on 
> Monday and will change this unit out with the spare while they are 
> there.  Until then, IF-C will probably not work.
> 
> Finally - a question.  We are getting ready to install IF's B&D in 
> antenna 18.  When we put the second L302 in, should it have the old 
> firmware or the new firmware? It doesn't really matter to us, so I'll 
> leave it up to those doing the testing to decide which version they want.
> 
> Jim
> 
> 
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