Sold Ka Band LNB with Feedhorn (for Turksat etc)

[Satfaca]

Or again ... with a "polo pipe" solution.

 

[dreamsat]

This is of course the best solution. If you rotate the LNB behind the depolarizer, you can receive linear and circular. the depolarizer should be precisely aligned linearly.

 

[DrCband]

But you should always keep in mind that this is then a linear system. For Türksat and HellasSat you need a circular. If the antenna is too small or you are on the edge of the footprint you may need to add dielectric material to the feed. Similar to the C-band, the dielectric plate for circular reception.

Correct, I have a 'home made' teflon slab inserted in the throat of the feedhorn for circular reception. If not required can be removed, or rotated for alternative circular polarizations.

 

[DrCband]

Or again ... with a "polo pipe" solution.

Only problem with that solution is that it is inclined to have circular clamp type fitting rather than anything that can easily bolt directly to the LNB.

 

[Peyu75]

Hello, you can use such a polarizer

Mechanical polarizer Hirschmann CSP 1210 C & Magnetic polarizer IRTE and their advantages and disadvantages in practice . | CZECH AND SLOVAK DX SATELLITE CLUB

Our main focus is on application of scientific methods in the area of high frequency engineering and wave physics. We provide practical solution for anomalous satellite signal reception within Europe, Africa and Asia. Think-Tank dxsatcs.com is a scientific and research project by Roman Dávid.

www.dxsatcs.com

 

[DrCband]

Ka Band LNB and feedhorn, 18.2GHz to 19.2GHz. I did manage to pull in some of the transmissions from Turksat; however, being in the West of Ireland they are on the very edge of reception. The label on the front has faded since this image was taken. I'd like to get €140 plus costs for this.

Sold and on its way to a new home.