9
Notch Discrimination (target accept / reject) – see the table on Page 6 showing what targets are
accepted / rejected using the factory preset settings
Tone Break point
Iron Sensitivity
Discrimination Sensitivity
GOLD 1 and GOLD 2
This search mode operates differently than the other search modes on the Q30 series. Rather than
operating silently until a target is detected, a background threshold will be heard as you sweep the
search coil over the ground. On larger targets or those just under the surface, you will be alerted by an audio
“beep” much the way you would in one of the other search modes. On smaller targets or those that are
extremely deep which is how most gold is found, the response is often just a slight increase in the threshold
signal that repeats as you pass back-&-forth over the target. This is the most sensitive of the search modes
on the G30 series but does take some practice to ensure you are getting the most out of the detector when
it has been selected.
Specific functions that can be fine-tuned based on the specific site conditions in the GOLD 1 mode includes:
Discrimination – The factory preset setting is that nothing is rejected which is recommended to ensure
very small pieces of gold are not missed. If you are finding trash that needs to be eliminated, you can
use this function to increase the discrimination level to accomplish that. NOTE: This search mode
does NOT offer notch discrimination so you may reject good targets if too much discrimination is used.
Threshold – This sets the strength of the audio threshold discussed above. Depending on the type
of headphones you are using and your hearing, this may need to be adjusted
Discrimination Sensitivity
Specific functions that can be fine-tuned based on the specific site conditions in the GOLD 1 mode includes:
Discrimination – The factory preset setting is that nothing is rejected which is recommended to ensure
very small pieces of gold are not missed. If you are finding trash that needs to be eliminated, you can
use this function to increase the discrimination level to accomplish that. NOTE: This search mode
does NOT offer notch discrimination so you may reject good targets if too much discrimination is used.
Threshold – This sets the strength of the audio threshold discussed above. Depending on the type
of headphones you are using and your hearing, this may need to be adjusted
Tone Break – This search mode has 2-Tone audio and this allows you to adjust at what point the 2
nd
tone is produced; i.e., a low tone for targets in the range of 0 to the break point and a high tone for
targets above that point.
Discrimination Sensitivity
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