['LIVEWIRE?']

The two tests are basically the same, except that for continuity between any two points you need to set the meter to it's lowest ohms range, whilst for the leakage test it must be set to it's highest ohms range, because, as I said in an earlier post, there must be no readingi.e. an open circuit, between the aerial mast (centre pin of the plug) and the vehicle chasis (outer part of coax plug), whilst there must be continuity - i.e a short circuit between the outer screen of the plug and the vehicle chassis, and between the aerial mast (which, if telescopic, should be fully extended, btw)and the centre pin. An analogue meter will be fine for these tests. In the old days we used to use an AVO 8.