Depth

[MasonDixonMding]

I under stand the bigger the coil the deeper you go. And turning the power up and down will change the depth. But how does changing the recovery speed change the depth?

 

[Diga]

Hi Mason.

In the typical and popular detectors most use, the power level is fixed. The sensitivity level adjusts the gain on the amplifier, and that affects depth.

Bigger coils don't necessarily detect deeper. It depends on the target size. There is an optimal coil size for maximum depth based on a specific target size. For most coins in the ground, maximum depth is achieved in around the 9" round to 12" round coil size.

Changing the recovery speed changes the detector's sampling time. Deep targets already have a weak signal, so if the sampling time is fast, that weak signal is clipped to the point that the deeper targets aren't detected.

 

[markinmichigan]

Well said Diga, slowing your swing in a target rich environment and an average recovery speed will maximize your signal. Pretty sure. 3 fingers of Basil Hayen may have an affected my memory. Low and slow is always best.

Mark in Michigan

 

[Diga]

3 fingers of Basil Hayen may have affect my memory.

I had to look that up...and I hear ya. My memory issue with it all, is that I've been there more times than I want to remember

 

[markinmichigan]

Thank you, sometimes my fingers are faster than my proof reading. Thank you edit option.

 

[tnsharpshooter]

Maybe better to talk about the actual behavior of detector with faster and higher recovery speed.
Depth- yes depth is greater with slower recovery speed. Manufacturers use different levels. Does this mean all levels given for options are useable or will give good results in all sites? Nope. And this goes for detecting on salt beaches and salt water too.
Actually quite a few multi freq detectors currently made and sold using the lowest or lower settings for recovery speed is terrible to use. Can actually cause a loss of depth. And possible mske detector very sweep speed sensitive to detect even a solo sitting target. Higher ground mineralization usually means user needs to use somewhat faster recovery speed vs over milder ground.

Next.
Question..
Since lower recovery speed can provide greater depth of detection is this all the slower recovery speed is good for? Nope.
Couple examples.
Using stock size coil there can be targets shallower where slower speed helps with detection. Even on situations where notch and or disc are used.
Another example is say you want to detect up again a rock wall with stock sized coil. Slower speed used here can help with shallower to mid depth target detection.

Here’s something’s to keep in mind.
Faster recovery speeds as you progress out from middle of coil the coil is less sensitive or deep.
With slower speeds the edge of the coil are more alive.
Same plane objects faster speed can detect more objects per sweep as the edge of the coil is more dead acting focusing more on the center portion of coil.
Big mistake some detectorist make is running faster recovery in a polluted site all the time. Turns out there could be some targets detectable with slower recovery speed instead of faster.
There are variables thst come into play here. Along with coil size, freq used, arrangement of ferrous snd nonferrous to include being on or off the same plane of each other.
There is no one speed to necessarily run in a site. And declare site is hunted out.
Slower recovery speeds, can a user manipulate coil sweep speed to help either detection when target scenarios become cramped? Yes. But this manipulation of sweep speed still might not totally capture all detectable targets via faster recovery speed used.
Audio behavior is affected too depending on speed used wnd the detecting situation along with swing speed.

Cheers.

 

[Beachhunt1]

I under stand the bigger the coil the deeper you go

NO
Only environments with no EMI and non-mineralized ground will possibly give you more depth.

 

[Picketwire]

Slower recovery speed increases depth, faster decreases it, according to MD manufacturers.

 

[metaladdict]

Maybe better to talk about the actual behavior of detector with faster and higher recovery speed.
Depth- yes depth is greater with slower recovery speed. Manufacturers use different levels. Does this mean all levels given for options are useable or will give good results in all sites? Nope. And this goes for detecting on salt beaches and salt water too.
Actually quite a few multi freq detectors currently made and sold using the lowest or lower settings for recovery speed is terrible to use. Can actually cause a loss of depth. And possible mske detector very sweep speed sensitive to detect even a solo sitting target. Higher ground mineralization usually means user needs to use somewhat faster recovery speed vs over milder ground.

Next.
Question..
Since lower recovery speed can provide greater depth of detection is this all the slower recovery speed is good for? Nope.
Couple examples.
Using stock size coil there can be targets shallower where slower speed helps with detection. Even on situations where notch and or disc are used.
Another example is say you want to detect up again a rock wall with stock sized coil. Slower speed used here can help with shallower to mid depth target detection.

Here’s something’s to keep in mind.
Faster recovery speeds as you progress out from middle of coil the coil is less sensitive or deep.
With slower speeds the edge of the coil are more alive.
Same plane objects faster speed can detect more objects per sweep as the edge of the coil is more dead acting focusing more on the center portion of coil.
Big mistake some detectorist make is running faster recovery in a polluted site all the time. Turns out there could be some targets detectable with slower recovery speed instead of faster.
There are variables thst come into play here. Along with coil size, freq used, arrangement of ferrous snd nonferrous to include being on or off the same plane of each other.
There is no one speed to necessarily run in a site. And declare site is hunted out.
Slower recovery speeds, can a user manipulate coil sweep speed to help either detection when target scenarios become cramped? Yes. But this manipulation of sweep speed still might not totally capture all detectable targets via faster recovery speed used.
Audio behavior is affected too depending on speed used wnd the detecting situation along with swing speed.

Cheers.

Have you seen paystreak superfreaks videos? I'm talking speedswinging!