I got permission from NASA-TomTom to post this here. Looks like the DD coil is going to be a winner.
blacktoe
By NASA-Tom
For the past couple of months, I have extensively field-tested a new 11" x 7" DD coil for the Teknetics Omega. Some interesting discoveries. First; the primary area that I chose to hunt......... the non-ferrous targets of interest were approx in the 7" range. Several weeks ago, I hunted this area with the 9-3/4"
elliptical concentric coil. No non-ferrous targets were recovered. Although the Omega is capable of approx 10".... these targets were undetectable due to signal
attenuation from masking. A unusual loss in confidence ensued.
Fast forward--------- With the 11" DD coil installed, the Omega
became a measurably different unit. Suddenly, many non-ferrous targets
came to light. Even though this DD coil provides a approx 1" depth gain
on a high conductor Cu dime.... it placed the unit into a
"window-of-acceptability" for non-ferrous target acquisition in this
unique scenario. (Also, the Omega has multiple parallels to T2 platform). In bullet fashion:
* Disc '16' is the critical/pinnacle for max unmasking capabilities for the Omega..... as '21' is for the T2.... and '6' is for F75
* Fairly heavy EMI mitigated by sweeping coil in concert w/freq change
* Slightly better depth on high conductors vs. T2
* Slightly less depth on low conductors vs. T2
* Pinpoint delay is disconcerting..... for the first few moments of usage.
* Some elongated Fe targets are completely undetectable in ID mode with
no Disc & no notch. 90Deg turn...and Fe is then detectable. Undetermined (at this point) if this is a attribute...... or detriment.
* At first, the MP clock speed appears to be slow...... but Omega would
target-separate as well as T2
* MOST IMPORTANT: Omega is the industry forerunner for "stability"...
and the industry forerunner for "confidence" in Fe/iron nail infested areas. Although the unit is not as sensitive/deep as flagship F75..... this fatigueless
operating characteristic in iron is surreal. It is a dramatic departure from all others.
blacktoe
By NASA-Tom
For the past couple of months, I have extensively field-tested a new 11" x 7" DD coil for the Teknetics Omega. Some interesting discoveries. First; the primary area that I chose to hunt......... the non-ferrous targets of interest were approx in the 7" range. Several weeks ago, I hunted this area with the 9-3/4"
elliptical concentric coil. No non-ferrous targets were recovered. Although the Omega is capable of approx 10".... these targets were undetectable due to signal
attenuation from masking. A unusual loss in confidence ensued.
Fast forward--------- With the 11" DD coil installed, the Omega
became a measurably different unit. Suddenly, many non-ferrous targets
came to light. Even though this DD coil provides a approx 1" depth gain
on a high conductor Cu dime.... it placed the unit into a
"window-of-acceptability" for non-ferrous target acquisition in this
unique scenario. (Also, the Omega has multiple parallels to T2 platform). In bullet fashion:
* Disc '16' is the critical/pinnacle for max unmasking capabilities for the Omega..... as '21' is for the T2.... and '6' is for F75
* Fairly heavy EMI mitigated by sweeping coil in concert w/freq change
* Slightly better depth on high conductors vs. T2
* Slightly less depth on low conductors vs. T2
* Pinpoint delay is disconcerting..... for the first few moments of usage.
* Some elongated Fe targets are completely undetectable in ID mode with
no Disc & no notch. 90Deg turn...and Fe is then detectable. Undetermined (at this point) if this is a attribute...... or detriment.
* At first, the MP clock speed appears to be slow...... but Omega would
target-separate as well as T2
* MOST IMPORTANT: Omega is the industry forerunner for "stability"...
and the industry forerunner for "confidence" in Fe/iron nail infested areas. Although the unit is not as sensitive/deep as flagship F75..... this fatigueless
operating characteristic in iron is surreal. It is a dramatic departure from all others.