24,45° west ka-band position ?

dreamsat

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In the KA band B I found transponders on 24,45 ° west cirkular R and L.
With OMT and Ku Band / Ka-Band LNB I made a comparison in the positions. There is a difference of 3.5 ° east of Alcomsat 1. There is no satellite but the KA band sends.
I think it's Alcomsat 1 but it's not like that.
Could someone please do a test on this position. My sensors are really accurate and the deviation is clearly shown in the pictures. If Alcomsat 1 is set correctly, nothing will be received in the KA band. Only 3.5 ° east of it.

regards dreamsat
 

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dreamsat

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My Satellite Setup
2,20m Kathrein, 3,7m Andrew, KU,KA,C,C-Ext. LNBs
My Location
germany
with Depolarizer and handmade KA Feed
 

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Channel Hopper

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Which dish are you using for this ?
I am assuming both your dishes are prime focus.
 

dreamsat

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I use a 2.2m Primfocus antenna from Kathrein. The Focus and the Skew can be optimized with motors.
 

dreamsat

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that's only 0.35 °
 

Channel Hopper

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And a side lobe is ?
 

dreamsat

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Hello Channel Hopper,
I know what a side slope is and in other positions this problem does not occur.
Do you have Ka band equipment ??
Can you check it or do you only suspect?

best regards
 

Channel Hopper

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Only a suspicion, I have had single sidelobes on a couple of 3.1m Patriot dishes before now which required complete dismantling of the reflector panels and switching around to cure.
 
A

Anonymous_1

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only one Freq. from my QTH
but whatever the beam, none of them match with the 10 KA band spot beam of Alcomsat124W_19850GS.JPG
 

dreamsat

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Thanks for the answer. I will watch it. Possibly a user can identify the satellite by means of the beacon or telemetry.
 

Channel Hopper

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Can you confirm it is not Al Yah 3 (at 20W) ?
 

dreamsat

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Can you prove it ? I have KA and KU LNB mounted on an OMT and have between both Maximas 0.35 ° distance.:rolleyes:


I'm not sure yet.
 
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