V4 notch, discrimination and depth

[ds1]

So my Deus will arrive next week. I am new to this machine but not to detecting or detectors in general. I appreciate that it is wise to start off in a factory pre-set program such as GMP, which is what I will be doing but I also want to build up a program or two of my own as the ‘tweakability’ of the detector was a big merit point for me. So a few questions regarding the application of notch in v4 please:

1, I understand that notch in the Deus is an audio filter and does not affect depth like applying normal discrimination ( according to the likes of Andy Sabisch). Is this true in your experience?

2. Discrimination ( normal) affects depth, around a 20 % reduction when discriminating iron out. Have you found this to be true? If not how would you say discrimination affects depth?

3. Using notch at what level would you set it to discriminate iron out with v4 0-10?, 0-25 a combination of notches eg 0-10 & 24-26 ( to get rid of coke). What do you use? I am really only concerned about using notch to disc out iron. I understand that using notch can blur the numbers a bit.

4. On v4 normal discrimination can go down to -6.4 ( probably unusable) but does notch also go down to -6.4 or 0 ? If notch goes down to -6.4 also would there be a depth advantage in setting notch to -6.4 up to say 15 to keep the machine be quiet?

I appreciate that not wantiing to hear iron is not trendy but some days I want a quiet life - but without loosing depth.

Replies much appreciated, thank you.

[alfaowner]

A great choice of machine your questions have bamboozeled me though

Whack it into a preset program and get used to it first mate , ( I recommend deus fast )
Good luck

[Easylife]

A low discrimination setting will get rid of small iron without affecting depth. If you set the Iron volume to 0 you will not even hear any of the discriminated iron. I have not needed to use notch at all yet. Maybe after using the GMP program you will not be to concerned about using notch discrimination, though you will be able to experiment for yourself.

[ds1]

Thank you for your replies. I will be sensible and start with the preset programs of course but still tinker. I would imagine that customising a program will take several months of trial and error and testing possibly to achieve nothing.The questions were to take advantage of other people’s experiences as a baseline and if possible avoid someone else’s horizontal learning curve. The notch facility on the Deus does interest me however as on previous analogue detectors it’s something that I have always consigned to the useless bin.