[evlatests] new rubidium standard

[Terry Cotter]

I have just been informed that the double maintenance days have been 
changed to Apr 14-15, I will change the Rubidium then.

Terry Cotter wrote:
> We have a new Standford Research systems rubidium frequency standard to 
> replace the old HP rubidium standard at the VLA. This is the backup for 
> the maser. On the next double maintenance days Apr 7-8, I would like to 
> install this standard and run the VLA on it over night. I understand 
> that there is a VLBI run on Apr 8 after maintenance day is over. 
> Switching from the maser will glitch everything, but we should have time 
> to reset on both days. I hope to test this new standard to make sure 
> there are no hidden problems and understand better what happens to the 
> array when we switch standards. I would like someone to check the data 
> using the new standard.
> 
> Terry
>