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14/18V to 0/5V polariser ?
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<blockquote data-quote="dreambox1959" data-source="post: 1120427" data-attributes="member: 314801"><p>there have been two models of magnetic polarizer:</p><p>those who have a WR75 output (rectangle)</p><p>and those who have a round output -output wr75 to mono polarity and dual-band LNB, for example</p><p>-round output to universal or orthomode head.</p><p> but the principle is to position the whole lnb at 45 ° and to send a direct current in the winding of the polarizer, we test with a current of 0mA at 80mA max (to cause a rotation of the wave of 45 ° in addition) and we reverse the polarity to change the axial plane</p><p> So a potentiometer in series with the winding and a double inverter and it works.</p><p>but as I said the ideal value varies with the frequency: we do not have the same setting at 10,700 and 12,750 !!</p><p></p><p>i have pace mss200 schematics where we can see magnetic and mechanical polarizer</p></blockquote><p></p>
[QUOTE="dreambox1959, post: 1120427, member: 314801"] there have been two models of magnetic polarizer: those who have a WR75 output (rectangle) and those who have a round output -output wr75 to mono polarity and dual-band LNB, for example -round output to universal or orthomode head. but the principle is to position the whole lnb at 45 ° and to send a direct current in the winding of the polarizer, we test with a current of 0mA at 80mA max (to cause a rotation of the wave of 45 ° in addition) and we reverse the polarity to change the axial plane So a potentiometer in series with the winding and a double inverter and it works. but as I said the ideal value varies with the frequency: we do not have the same setting at 10,700 and 12,750 !! i have pace mss200 schematics where we can see magnetic and mechanical polarizer [/QUOTE]
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14/18V to 0/5V polariser ?
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