Before revision: The measuring distance must be skillfully adjusted to be close enough to provide sufficient coupling for the dip to show clearly, but far enough that the meter and the tested circuit oscillate independently, so that neither device’s frequency significantly distorted by the other , and so that power loss in the external circuit does not swamp the dip meter’s oscillator .
After revision: The measuring distance must be skillfully adjusted to be close enough to provide sufficient coupling for the dip to show clearly, but far enough that the meter and the tested circuit oscillate independently, so that neither device’s frequency significantly distorts the other’s , and so that theis not swamped by power lost to the external circuit dip meter’s oscillator .