VSAT back structure

  • Thread starter Thread starter Archive-B
  • Start date Start date
A

Archive-B

Guest
Anybody knows the name of materials (plastic composite, non-composite etc) used in back structure of a typical VSAT antenna in the following images used in satellite broadband connectivity ?
 

Attachments

  • Picture-1.webp
    Picture-1.webp
    75.2 KB · Views: 19
  • Picture-2.webp
    Picture-2.webp
    135.8 KB · Views: 18
  • Picture-3.webp
    Picture-3.webp
    20 KB · Views: 17
On Channel Master type dishes I believe they call it glass fibre reinforced polyester.
 
ozumo said:
On Channel Master type dishes I believe they call it glass fibre reinforced polyester.
Click to expand...
Not FRP in Picture-1. May be a mixture with other gypsum based compound in Picture-2


Channel Hopper said:
SMC

Sheet Molding Compounds - an overview | ScienceDirect Topics

www.sciencedirect.com www.sciencedirect.com
Click to expand...
Picture-1 showing strip like ribs are SMC ? (I doubt) :confused
Picture-2 may be SMC with high percentage of any hard/rigid ingredient/ingredients.
I think SMC only pressed over reflective metal mesh on mould only. These are other type of materials (not sure)!!
 
ozumo said:
Looks like a 1.2m Channel Master type dish, the datasheet says FRP.

Click to expand...
I read many such data sheets. As more than 75% parts of reflector are made from FRP they (=manufacturers) simply put "mechanical reflector -: FRP or SMC with some suffix ".
I am attaching 3 pictures below in which a person (probably making solar concentrator) adding such rib like strip at the back of already built reflector.
 

Attachments

  • Strip-like-Rib-1.webp
    Strip-like-Rib-1.webp
    86.4 KB · Views: 11
  • Strip-like-Rib-2.webp
    Strip-like-Rib-2.webp
    83.5 KB · Views: 10
  • Strip-like-Rib-3.webp
    Strip-like-Rib-3.webp
    64.6 KB · Views: 13
st2@88e said:
Not FRP in Picture-1. May be a mixture with other gypsum based compound in Picture-2



Picture-1 showing strip like ribs are SMC ? (I doubt) :confused
Picture-2 may be SMC with high percentage of any hard/rigid ingredient/ingredients.
I think SMC only pressed over reflective metal mesh on mould only. These are other type of materials (not sure)!!
Click to expand...
You have clearly not read the link I provided.
 
Channel Hopper said:
You have clearly not read the link I provided.
Click to expand...
Sorry your provided link was insufficient to confirm these structures are of SMC :).

I made google image search for "sheet mould compound products" and found many finished products having physical appearance similar to the strip like ribs of VSAT.

Also this youtube video confirm the same
 
st2@88e said:
Sorry your provided link was insufficient to confirm these structures are of SMC :).
Click to expand...
You have clearly not understood the content of the link I provided either.
 
Back
Top