XP ORX quick set up guide for Gold prospecting

Credits: GoldProspectors.org

XP ORX quick set up guide for Gold prospecting

As many of you know the XP ORX is a multifunctional metal detector, one of it’s many uses is it’s ability to become an excellent Gold prospecting machine using one of the 2 factory pre-set Gold programs, 1 & 2 on the ORX menu, Gold and Fine Gold.

2 Gold modes – 2 Coin modes + 2 empty user slots
2 Gold modes – 2 Coin modes + 2 empty user slots

XP ORX screen information

Let’s break the ORX display down into 4 main sections which change into a bold and clear numeric display when a target is detected.
Section 1 shows the program you are using along with battery power.
Section 2 is the ground mineralisation bar
Section 3 displays ground information, the adjusted ground balance is on the left and the real time registered ground reading is on the right.
Section 4 are the icons to access the menu features and to change programs using the hashtag key

Section 5 Fast grab / pin point button


ORX quick set up guide

Setting up the ORX for Gold hunting is possibly one of the easiest in its class, I have broken this down into 3 simple stages, once you have selected your desired Gold program (1) the set up procedure should take you no less than a couple of minutes to compete.

Ground Balancing

When hunting for small nuggets in hot ground a precise ground balance is essential, your task here is to eliminate the ground effect without eliminating the small Gold.
Sweep the machine over your ground and look at the mineralization bar (2), if it is high, you have highly mineralized soil, very often if you lower the coil to the ground the feedback will start to increase.
Your job is to eliminate this feedback, so when the coil is at search height the ground is silent.

The procedure
Slowly lower the coil to the ground, as it approaches press the fast grab / pin point button (5) once, this is known as ground grab.
The 2 numbers on the screen (3) should now correspond, indicating you have made a successful ground balance. If they don’t, repeat this procedure again, with a little practice you will get this first time, every time.
Experienced users may sometimes wish to fine tune the ground balance setting by using the plus and minus keys.
During your search you may encounter changing ground minerals, simply ground grab to settle your machine again.

Adjustable Reactivity
Adjustable Reactivity

Set the reactivity

The reactivity plays 2 important parts, firstly it adjusts the filtering of the ground Vs your sweep speed. Secondly it changes the audio response to troublesome HOT rocks.

It may be worth noting that Gold nuggets will give a different audio response compared to HOT rock, once again with a little practice this will become second nature.

The procedure

Enter the menu (4) and select reactivity – Sweep the coil over the ground and listen out for false sparse signals, raise or lower the reactivity to find a suitable setting.
*Note a higher setting of around 3 will work better on hotter ground.

Typical hot rock
Typical hot rock

Set the sensitivity

Once you are confident you have the best ground balance and reactivity settings, raise or lower the sensitivity to fine tune the operation.

Your goal is to set your ORX to run as smoothly as possible with no false signals, this way you will hear the smallest response from tiny Gold Nuggets.

Elliptical high frequency coil up to 80 Khz
Elliptical high frequency coil up to 80 Khz

Other ORX menu settings

The ORX has a very useful feature called IAR – Iron Amplitude Rejection, this is a form of Iron rejection and should be used with caution.

At a setting of 0, there will be no iron rejection, which is the recommended setting for Gold prospecting, however if you have no choice other than to use some iron rejection, the ORX has a range of 1 – 5 at your disposal, 5 offers the maximum iron rejection.

IAR iron rejection for contaminated sites
IAR iron rejection for contaminated sites


The adjustable threshold setting introduces a background audio hum, which is separate to the target sound, it is recommended that the threshold is set to “just audible” for best performance.
The threshold can give you a little more target information as sometimes it will drop out before a target signal is heard.

Iron volume

The iron volume can be used or not used depending on your preferences, when ON, it will give a separate low iron tone when passing over a ferrous target, accompanied by a reading on the visual iron probability meter.

Hot rock response Vs reactivity setting

When passing over hot rock with a reactivity setting below 3, the audio will give a long yearning sound and can be easily differentiated between the short zip zip sound of small nuggets.
With a setting of 3 and above, HOT rock with give a double negative sound, once again very different to small Gold.

The full range of HF and X35 coils for the XP ORX
The full range of HF and X35 coils for the XP ORX

Search coils and Frequencies

The HF Elliptical coil is the most common choice when prospecting as it has a frequency range of up to 80Khz, plus the Elliptical shape is less effected by highly mineralized soil.
However if you intend to use the ORX for a variety of search scenarios, such as coin shooting, then perhaps the HF round coil may be a better choice, with a frequency range from around 14Khz to 50 Khz.

Typically the higher frequencies are better for Gold hunting, unless the desired Gold is of a substantial size.
It may be worth noting here that because the XP ORX is fully wireless, the lower stem and coil can be detached and used on its own to detect caves, walls and other areas where a full detector may be difficult to sweep.

Target information

When a target is detected, you have 2 forms of reference, firstly is the clear audio response, either through the RC speaker or the wireless WSA lightweight back phones.
Secondly the target ID meter which gives a large numeric display and a live Iron probability meter.

ORX target ID meter showing a non-Ferrous target (left) Ferrous target {Right)
ORX target ID meter showing a non-Ferrous target (left) Ferrous target {Right)

xp orx

Just one more thing before I go…….Did you know the XP ORX with the HF Elliptical coil is the lightest detector on the market!
Read more about Gold Prospecting: FIELD TEST – XP BATEA