[evlatests] EVLA Antenna Feed Moisture Condensation Conflaguration

Barry Clark bclark at nrao.edu
Mon Jul 28 12:43:43 EDT 2008


I'm wondering if a quick and dirty measurement of leakage wouldn't be
worthwhile as a part of feed installation - I'm thinking a tire pump
and a water manometer.  Might catch some of the nastier problems.
(If you can't pump up the feed with a tire pump, a dry air system isn't
going to be very happy with it either.)

> From evlatests-bounces at donar.cv.nrao.edu  Mon Jul 28 09:26:49 2008
> 
> I like this idea. It is simple, cheap and quick. We could leave the 
> desiccant in between the Goretex and the feed as a little extra 
> insurance and a visual aid as to status.
> This would require an initial dry air purge. Will the volumes of the 
> L-band and S-band feeds require any special considerations?
> 
> 
> Chuck
> 
> 



More information about the evlatests mailing list