HH PI vs. high power PI's like TDI or Goldscan 5c

[Reg]

I have never used either one or if I have, never really spent much time with it. With that said, we need to look at the application and we find both are made for hunting in sea water. Somewhere I read the delay of the Sand Shark is 22 usec. I suspect the Sea Hunter is about the same.

Most PI's used for gold hunting have a delay capability of 10 usec or sufficient gain that a delay of 13 usec works as well as a 10 usec unit.

So, what does this mean? Well, both the Sea Hunter and the Sand Shark will find gold and many people use them to find gold rings or large gold jewelery. They will both find gold nuggets that are not super small.

With a delay of 22 usec, the ground signal probably isn't that bad either, meaning ground signals won't cause that much of a problem.

My guess is you will start having problems detecting gold less than a half gram and see a depth loss on gold a gram in size and larger when compared to some of the other PI's. The nugget characteristics and chemistry will cause a size variation of just what can be found. Naturally, coil size and design will also have effects.

Reg

 

[icurabeachguy]

Yup, I've read the same about the SS 22usec min. delay of the Sandshark.

The Sea Hunter has 18usec min. delay according to "Tony" a long term member on here who has used and owned both machines. If I recall correctly, he preferred the Sea Hunter over the Sandshark.

Hope that helps! Happy hunting...

 

[Tony]

Yes, the Seahunter has that extra level of sensitivity to detect the smaller rings / lower conductors than the SS.
Once the targets get past that size then there isn't much between the SH and the SS.

Seahunter: Approximately 18-19

 

[icurabeachguy]

.......and my beloved Aquapulse AQ1B is around the 25

 

[CladDog]

Thanks to everyone for the information you have shared. It was very valuable.

It seems curious to me, now that Detectorpro is no longer making the Pulse, the only 10uS detector I know of is the White's TDI, but that isn't a waterproof unit.

Strange they did not put the TDI guts into the Dual Field.

 

[lytle78]

TDI is a Way different design - much larger than the DF PI. Whites seems to have given up on a waterproof TDI.

The new ML SDC 2300 as well as the Garrett ATX are waterproof and the pulse delay on them is likely in the 10μs range. They weigh a TON however.

 

[CladDog]

Yeah, that weight is the deal killer for me.

Those designs were made for mine sweepers.

I guess the contracts for mine sweepers has run low and they needed to find a new use for the housing.

 

[Tony]

.......and my beloved Aquapulse AQ1B is around the 25

 

[icurabeachguy]

.......and my beloved Aquapulse AQ1B is around the 25

 

[Tony]

I generally use the Aquapulse if I'm looking for something specific.

For day to day general hunting then I will use my Sea Hunter.

The Aquapulse will still pick up the smaller lower K rings but not to the depth of the Sea Hunter.
I think I got about 10" on a nickel with the Aquapulse but the Sea Hunter gets about 13". My average size 18K wedding ring is seen well by both units...out to about 12".
The gap between the machines closes once the rings are higher K and/or get bigger. Once we move onto the bigger/chunkier gold rings then the Aquapulse will meet/surpass the Sea Hunter. The Aquapulse loves the gold coins and anything silver (moving up the conductivity scale).

The delay setting is a personal thing.....I decided to run at a slower delay as I wanted to hear the small threshold variations (deep targets) that might otherwise be drowned out with a quicker delay. 15

 

[icurabeachguy]

I generally use the Aquapulse if I'm looking for something specific.

For day to day general hunting then I will use my Sea Hunter.

The Aquapulse will still pick up the smaller lower K rings but not to the depth of the Sea Hunter.
I think I got about 10" on a nickel with the Aquapulse but the Sea Hunter gets about 13". My average size 18K wedding ring is seen well by both units...out to about 12".
The gap between the machines closes once the rings are higher K and/or get bigger. Once we move onto the bigger/chunkier gold rings then the Aquapulse will meet/surpass the Sea Hunter. The Aquapulse loves the gold coins and anything silver (moving up the conductivity scale).

The delay setting is a personal thing.....I decided to run at a slower delay as I wanted to hear the small threshold variations (deep targets) that might otherwise be drowned out with a quicker delay. 15

 

[ROBOCOP]

I went back and re-read this whole thread. I've been using the Detector Pro Head Hunter Pulse with the 11 inch coil for 3 and a half years now.
I just picked up another one from ebay with both the 11 and 8 inch coil. Had it shipped from Hawaii to Florida.
It's pulse delay minimum is set to 15 microseconds and I'm able to run it's Frequency at 2:30 position with 5:00 being the full on position on Florida salt water beaches.
I guess I've been running it right at it's sweet spot for my kind of detecting.
I've made some good finds.
Since it's been out of production since Nov 2013 I bet it becomes the next "Unicorn" detector.
I got my two. Try one if you can find one.