0 = Normal Discrimination Audio. Rejected target audio is suppressed
10= Audio volume of rejected targets is 10% that of accepted targets
20 = The audio volume of rejected targets is 20% that of accepted targets
30= The audio volume of rejected targets is 30% that of accepted targets
40 = The audio volume of rejected targets is 40% that of accepted targets
50 = The audio volume of rejected targets is 50% that of accepted targets.
60= The audio volume of rejected targets is 60% that of accepted targets
70= The audio volume of rejected targets is 70% that of accepted targets
100% audio for all targets can be acheived by accepting all targets using the
Discrimination option or using one of the All Metal type modes.
When using a mixed mode such as the Preset RELIC Program, Rejection
Volume can be used to reduce or eliminate the volume "beep" of rejected
targets. However, in All Metal Audio Programs such as Prospecting, Rejection
Volume will not have any influence. Rejection Volume can only influence modes
or programs with a Discrimination audio.
Threshold
The MX 7 can be used in silent search (no sound until a target is detected),
or with a Threshold (steady continuous background hum) with virtually no
difference in maximum detection depths. However, searching with a contin-
uous threshold has the advantage of providing more information regarding
what the detector is seeing. The threshold fading to silence indicates either
a rejected target, or a ground anomaly. By focusing more closely around that
spot, often a good target can be found near trash.
To Adjust Threshold:
During searching simply press up and down arrows next to the Options button
to adjust threshold.
Optionally while in the menu:
1. Press Options and use the up & down arrows to select Threshold.
2. Press + & - buttons to adjust threshold. Threshold level should be as quiet
as possible while still hearing a hum.
3. Press Options to exit, or wait 10–15 seconds for the Options mode to
automatically time out.
Tone Identification or Tone ID
The pitch or audio frequency produced by each target's display identification
range can be highlighted with differently pitched sounds, called Tone Identifica-
tion or Tone ID.
A specific audio pitch reference for each range provides quick audio ID based
on the pitch of the beep it produces during searching- without looking at the
display.
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