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NQRduckumentation/source/tutorials/docs/PreAmp.md

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Pre Amplifier

The Pre Amplifier is used to amplify the TX signal before it is sent to the RFPA. Always cool the Pre Amplifier, because it will burn out otherwise.
Figure: Picture of the Pre Amplifier and the cooling fan. Both need 12V. The input and output side are marked on the backside.

The Pre Amplifier needs a 12V power supply.