Polar Converter KA-Band

dreamsat

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Hello,
With this device, all four polarization levels Hor., Ver., LHCP and RHCP can be received in the KA band. The cross polarization in the linear range is 100%, and if anything, you lose 0.1 to 0.2 dB. All polarization levels and the focus in the antenna are adjusted with motors. At the moment it's a test in Band A, but in the near future my home-made 3-band LNB will be ready. I will publish it here.

best regards dreamsat
 

Attachments

  • Gilat Modding 24.jpg
    Gilat Modding 24.jpg
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  • Test Band A 3.JPG
    Test Band A 3.JPG
    161.8 KB · Views: 62
  • Test Band A 4.JPG
    Test Band A 4.JPG
    166.5 KB · Views: 39

John

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Elite 2.2 PF - CM1.8 - CM1.2 - Gibertini 1.25.
Ku - Ka -C & Ext C.
PC cards-TM5402 receivers.
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Hello,
With this device, all four polarization levels Hor., Ver., LHCP and RHCP can be received in the KA band. The cross polarization in the linear range is 100%, and if anything, you lose 0.1 to 0.2 dB. All polarization levels and the focus in the antenna are adjusted with motors. At the moment it's a test in Band A, but in the near future my home-made 3-band LNB will be ready. I will publish it here.

best regards dreamsat




Very good dreamsat1, we are thinking on the same lines as each other as well, lol, because i started my own 18 GHz H/V/L/R a few days ago and i'm waiting for a few components to arrive. I am also using the same minature motor as yourself. Would love to see some more views of the construction if possible and also wonder what make of polorizer are you using. :Y
 
Last edited:

dreamsat

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germany
Athena Fidus at 37,8° East

One can clearly see the two polarizations, LHCP and RHCP. I think that in Zukuft polarity problems and false statements belong to the past.
 

Attachments

  • Test Band A 5.JPG
    Test Band A 5.JPG
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  • Test Band A 6.JPG
    Test Band A 6.JPG
    158.4 KB · Views: 43

dreamsat

Specialist Contributor
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My Satellite Setup
2,20m Kathrein, 3,7m Andrew, KU,KA,C,C-Ext. LNBs
My Location
germany
Astra 5B KA-Band D

very good separation of the polarization planes LHCP and RHCP
 

Attachments

  • Test Band A 10.JPG
    Test Band A 10.JPG
    173.9 KB · Views: 27
  • Test Band A 11.JPG
    Test Band A 11.JPG
    172.2 KB · Views: 31

dreamsat

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My Satellite Setup
2,20m Kathrein, 3,7m Andrew, KU,KA,C,C-Ext. LNBs
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germany
good separation of the polarization planes LHCP and RHCP at 12° West
 

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  • 12,0° West 19.JPG
    12,0° West 19.JPG
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  • 12,0° West 20.JPG
    12,0° West 20.JPG
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  • 12,0° West 21.JPG
    12,0° West 21.JPG
    168.1 KB · Views: 25

John

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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.
good separation of the polarization planes LHCP and RHCP at 12° West




... yes very good separation, it's working well :Y. I'm still waiting for a few components to arrive from China etc for my Band A and Band D motorised polarity projects to continue.
 

dreamsat

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germany
Hello John,

I'm looking forward to your results.:Y
 
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