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Signum 7272M MFT version 1.00
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Ака Signum 7272M MFT version 1.00 [21/34] Sound settings

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Селективный металлодетектор «Сигнум MFT» 7272М. Руководство по эксплуатации.

Zoom WS (Zoom weak signals)

[1:2/1:4/1:7].

This option was designed to increase

the capabilities of visual hodographic identification. It allows to increase sizes of weak signal

hodographs as well as to evaluate the signal level by the size of the hodographic picture. For

instance, setting to the 1:2 scale you can increase and thoroughly examine a low-signal

hodograph. Scaling 1:7 you can evaluate signal levels in a wider range by the size of the

picture respectively.

SOUND SETTINGS

Sound Mode [

RT/RT-M/RTL-ST/RT-ST/ST-P} There

are 5 types of sound modes.

RT [Real Time}. In this mode the audio output is in sync with the movement of the

coil. As the coil approaches the target the audio rises and as it leaves the audio falls

respectively. This type of display allows for a maximum depth of detection without any type

of audio of the type of the object (all targets of a single tone). Real-Time is used when you

want to search for deep targets, for example to search for military items.

RT-M

[Real time-Multifrequency]

This is a single channel (RT) search mode with

tone or audio ID. This differs from other audio ID modes in that the ST channel is not used.

We can think of this as Threshold tone ID. Audio response is in real time while searching and

can provide more target information than may be available in the ST modes especially under

certain target rich environments. The number of tones can be set in “No. of tones”, and may

be set from 2 to 4.

RT-ST [Real-Time - Short tone]. This is the preferred sound setting.

Sound indication of the object occurs in 2 stages. Real time sound appears first (RT) with a

medium tone, and then, after the object is identified the RT threshold tone is replaced by

the ST tone of an appropriate frequency. The duration of the tone can be changed using the

Duration ST.

RTL-ST

[Real time before the threshold - Short tone]

. Along with RT-ST

this is the other main type of sound indication. Different from the RT-ST this setting is

characterized by the fact that when the ST tone is generated the RT tone drops out. This

setting will help with audio overload to the user when detecting in trash or in areas with

many targets.

ST-P {Short Tone Polyphonic}

Ability to give both a low tone and high tones

at the same time. For example, when giving a signal from the small flat iron targets (beer

bottle caps, small pieces of sheet metal, etc.).

Num. of tones [2, 3, 4, 5].

Sets the number of tones for audio identification.

LT Boundary (The boundary for the low tone (iron))

This option allows the user

to set the boundary for the low tone. In areas of mineralized soil as well as areas with small

iron nails, targets such as small shallow gold and other low VDI targets will indicate a

negative VDI

. Usually these give a signal between the medium-large iron VDI range and foil

VDI range. These will not fall completely within the range of iron but also not quite at the

range of foil. For example medium wrought iron targets such as wrought iron nails will have

a VDI vector of -45 to -40. Foil will have a VDI vector of 0 or close to this. Therefore those

targets with a VDI from 0 to -35 are considered “suspicious” and subject to research when

looking for small gold jewelry, small medieval daggers or coins within debris. When setting

the boundary of the LT remember these facts in order to not miss valuable targets when

searching under these conditions. So, if we receive a good tone, even if the hodograph

indicates a loop, with 95% confidence we can say that this is possibly a good non ferrous

target. Together with the separation rate of the MM search mode this setting will increase

your chances of not missing a non ferrous target mixed in the iron. Try to set the border for

Ака Signum 7272M MFT version 1.00 [21/34] Sound settings

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