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GPX 5000 Range
GPX 4800 Range
Factory Preset
Off (All Metal), 1–10
Off (All Metal), 1–10
Off (All Metal)
Iron Reject
Rejecting ferrous targets.
Not all targets are clearly ferrous or non-ferrous. A lot of
targets could be described as 'maybe' ferrous. Which of the
'maybe' targets that the detector identifies as being ferrous is
controlled by the Iron Reject level. The low numbers use more
caution and will identify most 'maybe' targets as non-ferrous.
As the Iron Reject level is increased less caution is used so that
high Iron Reject levels will identify more 'maybe' targets as
being ferrous.
A low level of Iron Reject will keep the discrimination
conservative. ‘Maybe’ targets will respond with a normal non-
ferrous signal and only definite ferrous targets will cause the
Threshold and target signal to blank. If the target response is
too weak for accurate discrimination the detector will give a
normal target signal until you dig closer to the target and the
signal strength improves.
A medium level of Iron Reject is less conservative and will
enable you to reject more ferrous targets from non-ferrous
targets; yet it will not 'blank' or reject most gold nuggets or
copper/silver artefacts.
A high level of Iron Reject is very aggressive, but very effective
at blanking ferrous targets. With a high setting some small
desirable targets (e.g. gold coated in ironstone) could be
mistaken as a ferrous target. This setting should only be used
in very high trash areas, or when using the detector in lower
mineralisation when searching for coins and relics.
Caution: Iron Reject will not work when using a
Monoloop coil.
Iron Reject will give the best results when used in
conjunction with the specially designed Commander
Double D coils.
Summary of Contents for GPX 4800
Page 1: ...Instruction Manual...
