All the suggestions for the two tables below are not set into stone and may vary from site to site. They are also dependant on coil size, soil type etc. Use them as a guide to making your own settings for your particular area. I prefer to run lower gains/motions for a quieter detector and listen for any repeatable signal however small, as opposed to higher settings and a lower SN (signal/noise)  ratio. If you believe your settings give you an advantage then by all means, use them.

GPX 5000 settings

I generally run my GPX 5000 around the settings in the table below with some tweaking as required. As with my older GPX 4500, I have set Deep mode up to look for deeper gold or run over a patch, General mode up as a general day to day detecting mode, and Patch mode up as an EMI blocker for those noisy days. I find that the GPX 5000 is far less suseptible to EMI and that I can usually run higher gains etc. than factory presets, in comparison to the usual lower settings I had to use with the 4500 due to the amount of EMI we experience in our area.

I try to run in Deep mode whenever possible, and this I find is usually achievable with the GPX 5000,  but if the detector becomes a little unstable I switch to General mode, and to Patch if the day is extremely noisy. This means I don't have to be in the menu every time I want to make an adjustment. I still have the option of accessing the menu for minor adjustments though depending on what I am trying to achieve.

The Manual Tune position in the menu is where I leave the menu set at, and I usually prefer to run around the middle of the range (90 to 110). If a quick adjustment is needed for the times when your mate gets too close, a wave of EMI hits, or when the detector gets fluttery then that adjustment is quick and easy.

As with the previous GPX models, controlling interference is a balance of the Gain, Motion, Audio and Stabiliser settings.

The Gain you choose is dependant on coil size and EMI levels.

The Motion filter is used to combat EMI or to match your swing speed to the target. A very slow motion speed controls EMI the best but broadens the response from a target. The motion speed has a bearing on how short and sharp the target response is. Higher motion speeds "quicken" the target response, so I try to run the highest motion speed I am able to dictated by the conditions.

The Audio setting for me on a 4500 usually sat at Normal, but I find the 5000 allows me to use Deep Audio (different to deep mode) more often. Deep is excellent as it makes the signal response louder. Boost is good for small coils and the 11" mono coil supplied in conjunction with Boost Audio and Fine Gold Timing is deadly on the small bits. Quiet dulls the EMI levels but is not needed as much as with the previous GPX machines.

GPX 4500 settings

I run my detector basically set around the settings below with some tweaking as required to suit the conditions. I have set Deep mode up to look for deeper gold or run over a patch, General mode up as a general day to day detecting mode, and Patch mode up as an EMI blocker for those noisy days.

I try to run in Deep mode whenever possible but if the detector becomes a little unstable I switch to General mode, and to Patch if the day is noisy. This means I don't have to be in the menu every time I want to make an adjustment. I still have the option of accessing the menu for minor adjustments though.

The Manual Tune position in the menu is where I leave the menu set at. This lets me make quick adjustments for the times the mate gets too close or a wave of EMI hits, or when the detector gets fluttery.

To control interference is a balance of the Gain, Motion, Audio and Stabiliser settings.

The Gain you choose is dependant on coil size and EMI levels.

The Motion filter is used to combat EMI. A very slow motion speed controls this best. The motion speed also has a bearing on how short and sharp the target response is. Higher motion speeds "quicken" the target response, so I try to run the highest motion speed I am able to dictated by the conditions.

The Audio setting for me usually sits at Normal. Deep is excellent if possible as it makes the signal louder. Boost is good for small coils and Quiet dulls the EMI levels.

I run the Stabiliser control at no less than 7. Lower levels affect the lead in and lead out part of the signal and may cause some targets to be missed if the coil isn't centred over the target.