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Meter and Graph facilities provide a better discriminating system than Audio Discrim does on its own
. Also, they do not require as high a Discrim settings to cut out iron, this helps the detector to register lower density targets
such as small thin gold or silver items. The swing of the meter needle, or the signature of the graph, gives as near an accurate assessment of the target as you can hope to get without digging.
When the audio
tone says there is a target there, if there is a left swing of the needle, or a left signature on the graph, then it is probably iron.
Leave the target or, if you are on a site where iron finds could be interesting, dig it. When the audio tone says there is a target there, if the meter needle swings right, or there is a right signature on the graph, it is unlikely to be iron, dig it.
The iffy targets are those where you get the audio tone, but no meter needle movement, or no signature on the graph. These could be small pieces of iron or silver paper, but I would still advise you to dig them.
They could be a small silver coin, either deep or on edge. A lot of coins are missed by not digging this type of signal.
If most of your detecting is going to be done on parks and picnic areas
you may end up digging a lot of ring pulls and silver paper. As mentioned in a previous paragraph, some detectors have a facility known
as 'Notch Accept and Reject', or '?Learn to Accept and Reject'. These facilities were designed for this type of detecting. Use Reject to ignore ring pull and silver paper targets. |
