What is the best way to tune a GP3000 ??

panhead Wed May 09, 2012 11:28 am

How do you tune you're GP3000 for best results ? So far I have seen three methods.

1. According to the Owners manual.

2. Lay machine on the ground, with the coil flat on the ground, and press the Tune button.

3. This method below, as described by cashman in another post on this forum.

Okay I think that is all the settings, now to tune the beast switch power on , Press the Tune Control button and hold the shaft Horizontally (parallel with the ground) ensuring the coil is standing vertically (like a T that has tipped on its side and is being held 1 metre or 3ft off the ground) Whilst holding it in this position, ever so slowly turn around in a circle and whilst doing this make a note of any interference or noise the detector makes, then turn in the direction from where the loudest/interference is coming from and stand still for a few moments until you hear the pips sound out. If they have already pipped before you have finished turning, repeat the process, only quicker so that you have completed the full circle and turned back toward the interference before they sound off. If this is done correctly each time you go out to detect, this machine will ground balance correctly, and you will hear those ever so quiet signals and will also cut out a lot of those false signals, (but not all).

Are there others ? Comments please.
panhead

geof_junk Wed May 09, 2012 5:40 pm

Method 3 is similar to the Manual. Method 2 is last resort when nothing else works(but I just hold the coil on the ground). I will add method 4 when working with another ML3000 and you are getting interference from it. Get the other "tuned" detector to face the coil towards you at about 10 to 15 meters at waist level while you do an auto tune with your coil facing theirs.

rc62burke Wed May 09, 2012 6:52 pm

Hi Panhead
Method 2 is the method that is demonstrated in JP's GP series DVD, to me it makes the most sense & is the method I use on my 2200, it make sense because the is the position that the coil will be in when you are detecting, the reason to put it down is to keep it as still as possible for the unit to weave it's magic.
cheers
Lee

Guest Wed May 09, 2012 8:34 pm

The proper way is to have the coil vertical to the ground holding the detector at waste high in front of you, turn it on and turn in a cemicircle find which direction is the most interference, then hold it in that direction then press the auto tune button and keep it as still as possible until it beeps telling you it has completed it's cycle. The way I was told by a very experienced operator and M/L dealer was to find the direction of the interference then place the detector on the ground with the coil still vertical to the ground sitting on back edge of coil, press the auto tune button and weight for it to finish it's cycle, this is how I still do it with the 5000 and works every time for me. Very Happy

Cheers.

Mike. cheers

geof_junk Wed May 09, 2012 10:45 pm

Mike54 wrote:The proper way is to have the coil vertical to the ground holding the detector at waste high in front of you, turn it on and turn in a cemicircle find which direction is the most interference, then hold it in that direction then press the auto tune button and keep it as still as possible until it beeps telling you it has completed it's cycle. The way I was told by a very experienced operator and M/L dealer was to find the direction of the interference then place the detector on the ground with the coil still vertical to the ground sitting on back edge of coil, press the auto tune button and weight for it to finish it's cycle, this is how I still do it with the 5000 and works every time for me.

Cheers.

Mike.

Note that when you find the most interference you are only finding interference for the last frequency that the Detector was tune at.

What is the best way to tune a GP3000 ??

What is the best way to tune a GP3000 ??

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