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Has anyone else noticed.....

E

Elton

New member
As the single frequency detectors seem to be getting more power added via boost modes, or Manufacturer improvements that stability, and or EMI ,Some call it is getting worse.

Nothing worse than a detector that pops and cracks as you use it.. So anyway. " just a little gripe from me".. If you have to turn sens down for smooth operation..whats the point of having all that power .. your sorta defeating the purpose of having the boost power available.........

I have a couple detectors now that just will not run in a City environment..so you have find country areas to operate the full power........

I'm done griping now....your thought would be appreciated.
 
VLF? PI? Brand? Maybe we can help. - Terry
 
n/t
 
TX Boost has the opposite effect than what you would expect Elton. On the White's V3i if we experience EMI, some users get good results by turning on the Boost and reducing the GAIN. Since EMI is amplified by the gain of the first stage of the receiver, by lowering the gain you will have less EMI, not more. The higher voltage of the TX coil will punch through the ground a little better to excite the target needing less amplification to hear the target at the same depth before TX Boost On. The downside of running boost is that it really eats up the batteries because on the V3i, the coil voltage is tripled from 10 to 30 volts.
 
I think that was well thought out on the engineers part at Whites. Wow .that's a lot of boost on the coil voltage.
I didn't know the V3i could operate without EMI problems yet still use the boost. If I use boost on my machines they immediately start to act up and the EMI causes erratic screen display jumping in the City environment's. In the country unless very near power lines their fine. "BUT" And that's a big "BUT" who hunts in the country all the time unless you live there..........
 
Elton it almost sounds like you are using a VLF machine and getting ground chatter, not EMI. Sounds like more of a ground balancing problem perhaps - don't know really, because I still don't know if you are swinging a PI or VLF machine. - Terry
 
I believe the next step is to work on those filters. There seems to be less golf swingers than before learning that a fast processor doesnt always mean you want a fast swing. We tend to work the areas a little slower in an attempt to get targets others have missed which means we getting more ground noise because of lack of filtering.... not a bad thing if you are willing to listen for those weak signal that slip in. Humm Larry they need to put a good BOOST on the coil of my SE.

Dew
 
I know just what you are talking about, Elton. I get sooooo mad at my truck. The speedometer says I can go 140 miles per hour but I NEVER get to drive that fast. Sometimes I can get it up to 80, maybe 85 on the highway on the way to work in the mornings if I catch light enough traffic, but I would sure love to max it out. Come to think of it, I've never driven any of my vehicles at maximum speed. There was always something that stopped me. Traffic, fear of a ticket, tire condition, something.

Same thing applies to my metal detector. Very few times have I ever been able to run ANY of the metal detectors I've owned at their maximum power level. There was always something that stopped me. Ground minerals, trash content, electrical interference, ground moisture, etc. But unlike driving my vehicles, there are times when I have been able to run at maximum settings and I was glad I had the extra power available, but those times were few and far between.

HH
Mike
 
If they put Boost on an SE, you would have to get a backhoe to get your target Dew...:rofl: I'm evaluating an E-Trac and 12 inches is plenty deep for me to recover a target, really too deep for an old man with a lesche. Like Mike said in so many words, a boost in power has limited applications.
 
Once turned down and after frequency change is tried first.. It works better. "BUT" at 50 sens and not at say 75 80 ..what do you miss thats just a little deeper.. I'm finding you miss a lot using a different detector that will run hotter..
 
Sorry
 
I'm a little confused...who cares if I cannot run my detector at full boost if 50% power is still deeper and stronger than 90% on my older detector ?
The down side of more power has always been like turning on highbeams during fog in some locations.
There are always going to be places you can hunt wide open and places you need to reign in the power...
 
Oooo come on Larry... please please please give me a little more SE power. Id love to dig 16 inches in hard dirt for those pennies and pull tabs. Ive found even on a beach in Fla with little to no minerals running the SE full out wont work as well as backing it out a couple digits on the sensitivity... there just was a point that there was no benefit to more sensitivity or gain.

Dew
 
To each his own, but I feel a bit more sensitivity than always usable is much like the extra power in your vehicle that you don't always need or use.
BB
 
I noticed some of the newer models have been brought down a little and they appear to work fine reading the forums.
Your right though..better to have it, than not have it.......... besides I'm not aggravated today from trying to use one that acts up with EMI. LOL

End of conversation.. No slamming was intended on any make or model..just an observation about operation I noticed.
 
n/t
 
Perhaps they should have followed suit with Nautilus who for years provided adjustable transmit power as well as sensitivity controls. Nautilus DMC can run up to 44 volts through the coil rather than the 6 to 8 volts of the majority of detectors. You then have the option to decrease sensitivity whilst retaining performance that the average detector loses due to EMI and ground noise.

The Aquasound TR can run at 52 volts, Golden Mask 3+ Powerbox to more than 120 volts. You can't use the extra power everywhere but its nice to have and does mitigate some of the problems of high sensitivity.
 
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