No attachment, but you can have quite a bit of alignment mismatch on 
rectangular waveguide without causing it to fail.  As long as the long axis 
aligns with the long axis of the other part you should be good.

This also assume that the two waveguides are the same or very similar 
frequency/size.  You can mate on series of waveguide with the next series up or 
down in frequency with a loss of returnloss but again, it will still work.  
Waveguide is pretty forgiving stuff.  You can even have a gap at the flanges 
and they will pretty much work.  You don’t really need to tighten them down.  
Just get them close or in contact.  

Not talking lab quality stuff here.  Just practical what works in the field.  
In the lab of course all the flanges are cleaned with alcohol and the flanges 
are torqued.  But that is because you are trying to get those super good 
numbers to publish in your catalog.  

In the field +/-3dB generally is just fine....

From: Steve Jones 
Sent: Wednesday, February 21, 2018 1:14 PM
To: [email protected] 
Subject: [AFMUG] Waveguide slot alingnment with integra ws to omt

Im having a communication breakdown with SAF. I know the underlying issue 
probably has to do with why integra WS is not advertised as a 2+0 system. There 
are no alignment markers or pins between the radio interface and the OMT 
interface. Im assuming when aligning waveguide slots you have very little 
marging for error. Attached are the radio and omt interface, and the omt 
antenna interface, the alignment pins are pointed out with screwdrivers, there 
are no pins for the radio side and theyre threaded holes that dont look like 
they would align. 

Anybody have advice on making sure these line up. Or is there a margin allowed. 
We had to give up our power margin on this link to get approval because the pcn 
was contested, i dont have any spare dbs to give

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