Just Sharing This Adapting a Prodelin poloriser.

John

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My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
.. Time for a bit of servicing and a change of lnb on the L/R/H/V C-band rig whilst the weather is decent.
The home brew rotating poloriser joint ball bearings needs a check & re-greasing.
There's not a lot of new stuff happening at the moment on the 4.5 - 4.8GHz section so the Norsat 8000RI Extended C- bandband 3 3.6 to 4.8GHz lnb is to be taken off and i'll fit a NJS 8486S 3.4GHz to 4.2GHz lnb and check out what's going on since i last looked around the 3.4GHz area for a change.
A touch of adaptation to the flange coupling required due to the NJS having different fixing arrangement which has been done and ready to re-fit on the poloriser asap.

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View attachment 138411View attachment 138412
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This picture might help explain why there are only two fixing bolts to the lnb plus two side clips. All the other lnb threaded fixings were not accessible for one reason or another.
NJS 8486S flange mod - ..jpg
 

John

Enthusiast.
Joined
Jan 1, 2000
Messages
2,737
Reaction score
3,962
Points
113
Location
North Nottinghamshire.
My Satellite Setup
Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
Promax FSM.
My Location
North Nottinghamshire.
Here's what the lnb 'see's' when bolted to the poloriser. Through the Circ pol onto the front waveguide tube to meet it's scalar ring and dish illumination . Elite 2.2mtr PF dish centre shown in the middle.


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C-band lnb birds eye view into prodelin Circ poloriser through to dish centre.JPG
 
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