Just Sharing This Rotating LNB Assembly

S

s-band

Member
My Satellite Setup
1.5m IRTE PF, Invacom SNF-031, TBS6983,
Various L, S, C, X & Ka bits. 1.2m S/X/Ku/Ka Prodelin on Az-El (being refurbished), 1.8m Precision PF with Bullseye Ku LNB or various C & X bits
My Location
Essex
The original thread is closed but here is the answer to:

Low Elevation Angle (1 degree -5 degree) Satellite Reception

Satellite signals at low elevation angle (1 deg- 5deg.) to a particular location is affected by many atmosphere related things like atmospheric scintillation, faraday rotation etc. which cause fluctuation in signal quality severely at reception end. While watching few videos on Youtube I...
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The picture shows the mount on a Prodelin Ka band dish. The axes of the servo motor and the feed are aligned, hence the adjustments. These are the parts used:

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I used a Polulu USB to pulse module to control the servo but you could use one of these:
servo tester | eBay but make sure it has a wide range.
The brackets, on the servo, either come with it or can be bought separately. Search: servo bracket robotics
 

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MrDish1 said:
So the lnb is running in the ;
brass single munsen ring!?
Click to expand...
No, the LNB is a WR75 type, the feed is in the ring and I use some Kapton and PTFE tape to make a smoother bearing. The other end is supported by the servo. It's not the most sophisticated arrangement but I've used it for several different Ka & Ku LNB/feed combinations.
 
what is kapton?! ,and do I understand correctly when I look at the picture, that the feedhorn and the lnb can rotate in its entirety ?!
Could you point out with an arrow what is rotating?
I am building an Egis here and then all info is welcome.

Best regards
 
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