Some pictures of my QFH

Vipersan

Vipersan

Emmett Browns Ghost
Staff member
Messages
10,914
My Satellite Setup
IP9000HD +
TD110 Dish and TD88 Dish in Tandem
66°East to 60°West.
AZbox PrmHD + OpnbxS9HD + Skybox + DrHD F15
2x VboxII AZ-EL
2 m+ Alcoa PF + BSC421 C-Band lnbf...
+SS2/TwHnS2-3200 pci/TBS6925 pci
1.5 Fortec Star -Gbox - HtoH Ku/Ka/C
My Location
UK
Found a few pix of my homebrew QFH antenna ...which is based on the NASA design ..
Pics taken during the build ...test ...and final instal phases ..
..and no I didn't fasten it to the chimney ...I got a mate who unlike me ..enjoys p1ssing about at height
lolDSCF0002.JPG DSCF0003.JPG DSCF0004.JPG DSCF0007.JPG DSCF0018.JPG

QFH Antenna Index Page
 
Analoguesat

Analoguesat

Administrator
Staff member
Messages
46,920
Location
Scottish Borders
My Satellite Setup
TM 5402HD
Skybox F3
Sky+ UK.
My Location
Scottish Borders
Doesnt the plastic pipe flex rather badly in the wind at that height?
 
Vipersan

Vipersan

Emmett Browns Ghost
Staff member
Messages
10,914
My Satellite Setup
IP9000HD +
TD110 Dish and TD88 Dish in Tandem
66°East to 60°West.
AZbox PrmHD + OpnbxS9HD + Skybox + DrHD F15
2x VboxII AZ-EL
2 m+ Alcoa PF + BSC421 C-Band lnbf...
+SS2/TwHnS2-3200 pci/TBS6925 pci
1.5 Fortec Star -Gbox - HtoH Ku/Ka/C
My Location
UK
Doesnt the plastic pipe flex rather badly in the wind at that height?
It can whip a bit in a high wind ...but part of the design is that the centre mast _must_ not be metal ...as this would stop the effectiveness of the ballun ...(matching transformer) wound on the mast ...
..and the antenna would simply not work.

Been up for a while now ..and survived various storms and winds..
If you read the whole article from the above link ...all is explained much better than I could.
rgds
VS
 
2cvbloke

2cvbloke

Bulbs need shelter too...
Messages
9,607
My Satellite Setup
No satellite stuff for the moment (aside from a 43cm minidish that was on the house already), Samsung SyncMaster T27B550 Smart TV & Monitor, and a few computers...
My Location
Near Pontop Pike, Co. Durham
Looks like a neat job there, got plenty of plastic pipe myself to make a QFH, just need the round tuit to get it made... :D
 
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