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broadfield

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  1. Question regarding ground balance please,

    Reading the DEUS manual, it appears to ground balance in two different ways depending on what mode you are in,

    1. Goldfield (or all metal) says it is an exact ground balance point that matches the ground phase.
    2. In the discrimination modes it says that all the ground numbers are rejected below the setting.

    It almost sounds like the ground balance in the motion modes are like the discrimination setting but for the ground region of the scale.

    Am I right thinking this? and how many different methods are there to achieving ground balance? Thanks.

  2. I was listening the other day to C-Scope talking about the new Evo-6000. They said they opted for single frequency operation with the coil set for one frequency as it is better as it resonates at it's design frequency, in this case 17khz. They did say there will be option coils to change the frequency higher or lower but this will mean purchasing a new coil to change frequency.

    Is this truly the best way to achieve the best sensitivity at a given frequency or are they just holding on to old tech.

    There are other makes of detector that you can change frequency with the same coil (Deus, ORX, Kruzer, Anfibio, Nox etc) do these machines have a set resonate frequency matched to the coil which offers best performance and do they lose sensitivity if you change frequency? Or is there a way of making the coil sensitive to a range of frequencies.

    Just wondering why they chose to go a different route to others on the frequency selection?

  3. I find 13khz is an excellent frequency for coins, goes deep and doesn't pick up tiny bits of foil.

    Just for fun try a reverse disc program with Alter, by that I mean set up a notch of accept 0-30 and reject 31-120. Set a custom single tone of 99 (or a low tone of your choice), set threshold high at 444 (again tweak to your choice), run it in dual mode. Make sure iron vol is 0.

    What you will have now is a very deep program with iron tone provided by the motion channel, dig everything else with a high tone from the threshold. This program won't be for everybody but shows the versatility of Alter.

  4. 11 hours ago, KevinOntheCape said:

    Although coin shooting may be under using this machines capabilities, by keeping sensitivity down to 50 to 60 range I can be fairly certain of what I find. 

    By no means are you under using it by coin shooting, you have already worked out that lowering sensitivity does not lower the ability to find coins. I have used as low as 40 and still pulled copper coins at good depths, what you won't hear are the small bits of foil and trash.

    18khz and higher sensitivity and this machine will pick up tiny tiny targets.

    The key with this machine is don't just set up disc as you traditionally would, use the tools in it's toolbox to give you the edge.

  5. Hi Kevin,

    I don't think this detector was ever intended for coin shooting, especially in the US. Although it is more than capable the thing as you have found out is you cannot save disc or notch patterns that US coin shooters would use.

    The dual mode is really for finding large deep buried targets, it can hint at something large and deep out of reach of motion mode. I wouldn't touch dual mode if you only coin shoot.

    Try playing with a custom tone profile as mixed metals will give a different tone to a coin of a single metal, this may be where 120 tones would be better than notch.

  6. I have a theory, last year XP said a couple of new detectors were coming.

    I think eventually the ORX and the Deus will blend into one with price options on the software feature sets, the new lighter stem will become the standard. Both machines use the same coils, it's only really the software options that are different.

    This will pave the way to a new machine around the price the Deus is now.

    I did read somewhere that Deus lights are already shipping with the ORX style stem.

  7. Hi ,

    I have the Alter 71, it is a very underrated detector. The factory programs are a very good starting point but you will need to grow into this machine. You can set it for a simple beep dig detector or have continuous feedback from the ground and targets so the machine is talking to you as you go. Features such as iron vol, reactivity and masking change how this detector sounds along with custom tones.

    I generally have a two tone audio set up with iron vol at 4 which gives you a 3 tone machine, the beauty of this is it will give you a sliding iron tone based on your disc setting, a medium tone and high tone. The other way I use it is to have 120 tones set and run it with zero disc, the audio feedback once you tune in is crazy but you can pick out tiny changes to the signal.

    I use the Rutus wireless module with XP Wired backphones.

    You are correct in the disc is global, I kinda get why the designer did it this way, I would suggest staring with minimal disc and only adjust up to site conditions or your tolerance level on the day. On the 120 scale disc around 12-16 is a good starting point.

  8. 12 hours ago, Steve Herschbach said:

    And you know that how? The Nokta/Makro Multi is well along in development.

    Just because they were way to premature in the naming contest, it gave the impression they were closer to release than they actually were. 

  9. I believe there is not much more they can squeeze out of VLF technology, even multiple frequency has it's limits and is really only 2 frequencies.

    Are manufactures better off concentrating on coil design rather than just tweaking an existing design adding a letter or two to the name?

     

    After market coils quite often improve a detectors performance, so shouldn't manufactures be looking in this area rather than using the same coil designed years ago?

    Would like your thoughts

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