KU to L- Band Conversion

patmos

patmos

Regular Member
My Satellite Setup
STRONG SRT-4910+,SunRay4HDse,TBS5922, 2.4M P.F Apstar7(76.5 DEGE), 120cm dish PAS 10 Ku( 68.5 DEGE),3.0M Mesh Motorised dish on arc (AM44 (11DEGW) to AM33(96.5 DEGE),150 cm dish W3C(16 DeG E)+ side LNB Ew2A(10 DEGE),90cm W4/W7 (36 DEGE)
My Location
Mauritius
Please help how to convert KU band frequencies to L-Band when using universals( LO = 9750/10600). From what frequency do I use each LO?
 
The switching frequency of a universal LNB is normally 11700 MHz, so any frequency scanned by your receiver below this will use the 9750 MHz LO, and any above 11700 MHz will be switched to the 10600 MHz LO (using the 22KHz tone).
 
Thank you. As understand 11716MHz would use 10600 LO and 11635 MHz will use 9750.
 
There's usually some overlap. The switching isn't always so clearly defined between the LO bands.
 
Hi!
i try one time,to connect a lband hitachi worlspace antenna,to a normal satellite stb,then one polarisation,of the antenna system was damage,looks like the voltage is diffrent!
now not much channels on lband worldspace!
 
Turok said:
Hi!
i try one time,to connect a lband hitachi worlspace antenna,to a normal satellite stb,then one polarisation,of the antenna system was damage,looks like the voltage is diffrent!
now not much channels on lband worldspace!
Click to expand...

I believe the Worldspace antennas where working on 3V whereas normal KU band LNBs are operating on 13-18V.

Edit: I just dug out my old external Worldspace Yagi antenna with an amplifier attached to it and it actually says it is rated at 2.3V
 
timo_w2s said:
I believe the Worldspace antennas where working on 3V whereas normal KU band LNBs are operating on 13-18V.

Edit: I just dug out my old external Worldspace Yagi antenna with an amplifier attached to it and it actually says it is rated at 2.3V
Click to expand...

Yes you are right , it is 3V. I once wanted to use that amplifier and found it as you said
 
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