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Tech Question: Garrett and VLF Technology

H

heavymetal

New member
I just found out from a list of Garrett machines that they have a detector from the 80's that uses VLF technology.

Now I'm not aware of any current Garrett machines that uses this technology as of the moment. Pls. feel free to inform me if they do offer this in their newer detectors.

If Minelabs X-terra series uses VLF and I think it's very effective, why won't Garrett apply this on their newer machines?

I also found out that they use to have high frequency coils before, why doesn't Garrett offer those kinds of coil anymore?

I would come back to Garrett if they can offer a machine similar to the X-terra series.... simply because I like being green:bouncy:
 
Dunno...What frequency are they talking about?
Almost all modern detecters are "VLF" strictly
speaking. IE: the ace 250 is at 6.5 kc if I
remember right.. Thats within the "VLF" range.
VLF should be any frequency from 3-300 kc I think.
Most detecters are at the lower end of that range.
MK
 
[quote NM5K]VLF should be any frequency from 3-300 kc I think.
MK[/quote]

I see... thanks for pointing that out NM5K:biggrin:
 
I have to agree with NM5K. I believe that anything under 100 KhZ is considered very low frequency. I can also tell you I sold my X-Terra 30 after I started swinging the Ace 250. The 250 is just that good. Also the Ace has a 4.5 inch sniper coil at only $60.00 The X-Terras do not have a small coil. I'll bet when or if they do it will be 2 to 3 times the money of the Sniper.
 
Garrett has GTI2500,GTI1500,GTI1350 that run on 7.2 (kHz)
Master Hunter,ACE 150, ACE250 that run on 6.5(kHz)
GTA that runs on 7.0(kHz)
Scorpion Gold Stinger that runs on 15(kHz)
which are what they call TR (transmit/receive) Technology.
Allot of other companies use the terms VLF which stands for (very low frequency) some of the same frequencies that Garrett has been using for years. Take a look at some of the other manufacturers info and you may find they say VLF/tr which in a sense is the same thing.
and the Infinium LS and the Sea Hunter that are PI units
Mr Garrett is probably one of the premier metal detectorist in the world and uses his products to prove they work. He doesn't use any other companies machines to find his treasures.:usaflag:
AND YES THEY ARE MADE IN AMERICA
I can tell you this, I have a 1866 era Showroom Storefront Metal Detecting shop in Michigan. The floor is covered with the old square nails that drive most machines nuts. I can turn on any of the Garrett Detectors in the building, scan the floor and hardly ever get it to beep on the nails! If I have a client turn on there machines in the shop they go nuts just as I said before. The electronics in the Garrett machines are amazing to say the least.
If you need further information on the Garrett lines of detectors please let me quote you on your next machine. The new videos that Garrett have available will show you just how simple they are to run. It is worth the $9.95 investment to see for yourself. If you purchase a Garrett the cost of the tape will be refunded to you and you keep the video. Delivery of videos or new machine is only about 2 to 3 days at the most unless it is shipped next day.

Treasures Down Under
269-506-6475
TDU is an authorized Garrett Dealer
ask for Tim
 
Garrett detectors are all VLF detectors. But not those like PI detectors or the infinium that are multiple frequency. :detecting:
 
Most all the "F's, run from 3's...
IE: HF is 3-30 mhz. VHF is 30-300
mhz... UHF is 300-3000 mhz...
Sooo..VLF should be 3-300 kc.
LF or "medium wave" should be 300-3000 kc,
where it meets the 3-30 mhz HF spectrum.
BTW, 3 mhz is the same as 3000 kc.
MK
 
I don't believe that much information is even comprehensible to the average Metal Detectorist. :nerd: Does the machine find stuff or not?
Does it do it in the water or land? or both? does it have tone id? These questions can be answered were deep mathematical calculations are sometimes left to the engineers and scientist. Not trying to be negative just trying to get back down to earth on basic questions and answers needed to make an informed decision.
TDU
 
[quote khouse]I have to agree with NM5K. I believe that anything under 100 KhZ is considered very low frequency. I can also tell you I sold my X-Terra 30 after I started swinging the Ace 250. The 250 is just that good. Also the Ace has a 4.5 inch sniper coil at only $60.00 The X-Terras do not have a small coil. I'll bet when or if they do it will be 2 to 3 times the money of the Sniper.[/quote]

Well in my case I sold my GTP-1350 for the X-terra 70 and I'm missing the profiling feature already and I have to adjust to that.

Just to let you know I'm also planning to get an ACE 250, why, not just because of the great reviews and prize but more of a loyalty thing.
 
Why? do you think most detectorists are brain dead,
and have no comprehension? :(
That is not much info to digest.. I'm just stating
the normal divisions of the rf spectrum. The only
reason I mentioned it, was one thought it was up to 100 khz..
300 khz is the upper limit according to normal convention.
The guy asked about VLF. I'm just giving him idea what
it really means. It's just a frequency, and most machines
use the same appx VLF frequencies. 6.5 khz is a very low rf
frequency. That's even lower than the submarines use, which
is often claimed to be in the appx 20 khz range, + -.
Not trying to be snappy, but I don't agree with dumbing down
a post to fit the masses. If they have no use for the info,
they don't have to read or use it. Some may have some use for it.
MK
 
Actually you are correct.. I knew it went in 3's, but
I forgot about the small 3-30 VLF spectrum...
So that means that 30-300 is actually LF...
300-3000 would be MF, 3000-30000 HF, etc..
Sorry about the brain fart... :/
MK
 
All Garrett detectors are VLF. The Gold Stinger runs at 15 khz. IN the old days of the TR detectors many ran at 100 khz.

Bill
 
Hey Heavymetal,

I just wanted to inform you of the status of your prior owned 1350 that my friend has. As of this afternoon he had the addition of a Virginia Half Penny.
Since receiving less in than two weeks 1854 Seated Dime,
1837 Trade Token (posted last Sunday night), (6)1860-70's Indian Heads, at least 20+ colonial flat buttons. Three A1 inticate carved
civil war bullets and whole bunch of other relics. He is enjoying the "ol 1350" very much.
 
This sounds like he has found his nitch with the new 1350. Sound like some great finds added to his list. Do you have any pictures?
TDU
Cassopolis, MI
 
Here is the tech data link directly from :garrett: This may answer more of the questions you may have.
Treasures Down Under:usaflag:
http://www.garrett.com/hobby/techsupport/techsheets/frequency.pdf
Good luck
 
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