Skull diver

8 hours ago, TTT2866 said:

Just "dive mode". I didn't realise there was a salt/fresh water mode on the D2..?

Actually, all of the remaining programs are available to use in freshwater if you try.

I've seen recently a user with fast 40 program in a freshwater lake environment

I would like to be able to fly near Irvine to the coast and alongside some of you enjoy the show maybe over an ice cold beer, waiting for the first useful tide to flush out things....

Maybe in another life or toward retirement, just another 30 years or so😭

I do not have the opportunity to test nuggets, much less in soil that can really be called mineralized.

When I was on the bottom a few weeks ago, It happened to dig for a low aluminum signal and accidentally retrieve a broken steel necklace.The mesh is really thin, but not too thin either.

Unfortunately, I have to say that even though I have done air tests at different frequencies, with 9" coil and with a variety of settings, the beach and beach sensitive programs are not able to detect it at any distance.

Returning to the subject of a necklace, we know that it is a matter of detecting a single link and not the entire object, but that is enough to define what minimum size is suitable for the Deus2.

I dare say in millimeters, something between 4 and above.

I have always been fascinated by the natural factor, so much connected to the conformation of the coast.

In my case, being the Mediterranean a closed basin, many of the non-European cyclones arrive greatly reduced in strength and maritime effect.

Another story, on the other hand, manifests itself with thunderstorms, with rain and hail following very sharp drops in temperature.

I also have to say that strong wave energy, often makes things worse on the bottom, if it ever improves the wetsand area.

It really looks like a different game.

Personally, I found AR to be a valuable aid in emphasizing weak signals and thus gaining a few inches at least to flush out something others had gone over without success.

Fact is, I was forced to keep it at 6 because of the bonephones I was hearing really badly between the regulator bubbles, but now with the new headset I may try to cut down interference and attempt 40kHz.

I doubt unfortunately that in salt water I can get as much stability or audio silence, just because of the frequency.

I don't like it as much on 24kHz so I will try in the near future if it helps.

After many attempts, I have come to the conclusion that the only way to use in immersion without annoyance and audio noise is to use pitch tone, in addition to various modifications on maximum frequency and reactivity to perform decently.

(P11 and P12 as a base from scratch)

12 hours ago, Ferrous Grump said:

I'd like to know how to change them over, I have an extra pair of Grey Ghost

In my case, the quickest solution was to cut the bonephones' cable at the height of the headband and solder the poles there with the Grey Ghost wiring.

This means sacrificing your bonephones if they work properly.

Mine, being broken and with only one plate barely making sound, were now useless.

However, you can find a 6-pole connector and simply solder in the places that appear in the picture the positive and negative.

Remember to insulate with resin the solder in some way after testing the audio and all should be well 😌

(Thanks to Carolina for the diagram or whoever posted it before 🙏)

On 7/18/2023 at 2:55 PM, Compass said:

It had been nearly 5 months since I found my last piece of gold

I'd like to remember it, how long has it been since I've seen the magical color😐...I think I'll have to save the next piece as a symbol of revenge😂.

Anyway congratulations 🙏

After suffering from broken bonephones, I salvaged a pair of Grey Ghosts I had on the Ctx and modified the connector to use the same pins as the bonephones.

They sound loud and clear and I would not go back.

https://www.instagram.com/reel/Cr8apzNqGvF/?igshid=MmU2YjMzNjRlOQ==

On 7/19/2023 at 2:42 AM, Tom Slick said:

Just drill a small 1/8" hole in the top of the rod near the controller clip to let the air escape.. 

That's right, even better with a couple of holes at the bottom and top of the handle, so that you don't have to turn the rod upside down and let the water inside leak out

Never seen one before🫢.

I'm still amazed of what we can find buried sometimes 🔥

Genuine envy...It matters little what you can find, but the time to devote to the search, that is priceless.

I am waiting with fatigue for the first free opening for a dive 🙏

Lovely colour of the old stuff😌

11 hours ago, abenson said:

All beach programs are the same as version .71

With the premise that I use the instrument solely underwater in a saltwater environment, I take this opportunity to expand on my impressions of the P10/P11/P12 beach programs.
Given a different frequency (now editable), I appreciated the freedom to keep what works and suppress what is not needed.
However, some time back there was discussion about manual balancing with the + and - buttons, mentioning multifrequency and the difficulty of balancing both.
Nothing to say about a double ground balance, for goodness sake, but such a high Gset versus a lower Gid would need to be corrected.
I get an annoying false signal on clay and hot rocks around IDs 25/27, and it is precisely on those numbers that the GB should settle.
Instead, the points are usually between 78 and 90.
If it is not possible to unlock the manual balance management like on the mono program, it would at least be a good thing to have selectable biases on presets, like for maximum frequency bias.
Thanks

Well, after updating the software and finding time for a session on the seabed to try out the new scuba program I created, although I have nothing to say about the stability in general, I have encountered a random flaw that occasionally interrupts the audio.
Specifically, it happens just after an interference cancellation, or sporadically after changing something between reactivity or sensitivity.
In short, you can't change the parameters much otherwise they are indigestible😂.
However by rebooting I solved it.
Aluminum by the ton and a beach among the most desperate, but at least the conditions were perfect for diving 🙏

You know what? Right now I'm more than happy to hear the stable threshold and using pitch tone, zeroing in on the continuous beeps as I move the coil underwater.In my opinion it's the only audio profile that allows you to distinguish a real signal from the ground and salt water when diving.

All I need is the damn time to assemble a sidemount rig and test it properly

More than a few times, someone explained that it is not possible to balance the terrain manually in multifrequency, as it is certainly easier to do with mono.

Unfortunately, I have to say that I was waiting for this feature in the new update, considering that on the Orx at the beach on wet sand, a dutiful 25/27 is ideal for quieting saline terrain.

Strangely on the Deus2 I get a much more "loaded" balance, ranging between 79 and 87, when in contrast I get false signal on hot rocks and clay around 25/28...

Can someone explain how to deal with this thing lowering at the best the G.B. ?

I figured out to move the coil higher on the seafloor to capture a different grab, but it works relatively and never obtained a lower number than 70.

What are we talking about if the proper setting is usually 25/28 for the wet/salt/sand?

I am convinced that this update has improved the stability of the instrument in favor of scanning.

Despite being in the lab with dozens of electrical devices running, I was able to set up a program and save it in complete audio silence on any frequency.

Now I am just waiting for a session of at least 3 hours on the seafloor to get a clear idea of how 40Khz reacts to saline💣😂

10 hours ago, Zord said:

The magical analog audio is back

What I unfortunately continue to perceive is a break in the threshold in favor of the signal, instead of a rise in the threshold.Hard to say whether the cause is the square tone bonephone or simply the digital system to sound different.Same problem on the old Ctx.

In any case I found the whole system much more stable and efficient.

Right now each program is a matrix on which to process its own in all parameters.

I just miss a manual ground balance in the beach🥴 programs.

I can finally say that I am satisfied with the volume output in my headphones.

Using the same connector and cable as the bonephones that got destroyed, I simply reconnected to an old pair of Grey Ghost cables and got this....😎

https://youtube.com/shorts/-N1jnp4beNk?feature=share

Let's see if it works and what happen😎

Some wire surgery and it should be fine tomorrow 🙏

On 5/2/2023 at 3:18 PM, Borja said:

I understand it is true that when activating sea water it becomes super stable. It seemed to me an interesting topic and something that I never stopped to think about. Would you recommend me to do the cancellation manually or automatically?

Having the auto quick function on the control panel, it is good to use it for convenience.

If you really want to try it manually, choose a channel from 7 to 11 and focus on threshold stability.If you start listening to noise in the headphones without even moving the coil, switch to a lower channel.

4 hours ago, Brad Plohman said:

Now I currently use the Gray Ghost Amphibian II's for Deus II

Just a curiosity...Do you have the model without volume control on the headphone?

In the past there was a much better performing pair but discontinued I think.

Anyway, yes, having to listen completely submerged, with a hood over the ears, it is the only possible choice that of the amplified output.

On 5/1/2023 at 1:53 AM, 619_805_okie said:

Took my d2 into 2-3 ft of waster today and discovered the first negative thing about the d2.  I'm running the 13x11 coil and the amount of drag caused swinging the coil was insane.  I think part of this was related to the flex in the lower shaft and the size of the coil but it really was tough. At times i felt like the lower shaft might snap if i tried to move too fast.

Anyone have any advice? Will the 9 inch coil solve this problem or do i need to invest in a different shaft?

I was forced to change shaft because using it to dive it was impossible to have the control box almost in front of the face🙄, but if you are standing and want to use the shorter length of the final, you can pour resin with hardener plugging the hole at the bottom.

This should give you torsional rigidity but also increase weight ⛑️...

6 hours ago, Borja said:

cancellation manually or automatically?

If you manually choose the channel, this operation can take effect in two ways.

A higher channel ( 7 to 11) may be noisier, while a lower channel (1 to 7), create less interference.

Precisely because it changes a frequency bias in motion.

The theory is that at channel 1 there are lower frequencies and at the opposite on channel 11 there are higher frequencies.

Mind you, I would add that in addition to being noisier and more unstable, higher frequencies also have less depth of effectiveness.

I would keep to the 25Khz that is more or less on channel 7, but no one without an oscilloscope could really confirm.

Around the ctx in spite of its age, there is still a shadow of mystery 🤐