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TTF test with 8x6 sef coil:confused:

P

pointer80

Active member
Hi all, Today I did some testing in TTF with the 8x6 coil and I was surprised at the results I got. This is definitely not a scientific test by no means and I know in the ground everything is different especially when the targets are at different depth to each other. I took some silver dimes and a buff. nickle and laid them in a clean section of my yard with some nails next to them and put the machine in TTF and did a ground balance Then I ran the 11inch coil over them and I picked up the high tone of the coin good enough to work the target and zero in on the coin and get some good numbers on the screen. I then switched to the 8x6 coil and re-ground balanced and ran the coil over the coins and could not pick up the coin at all. I repeated this several times. I got one little slight bleep one time which did not give even a hint of good numbers on the screen. Has anybody else ever tested TTF with the smaller 8x6 coil? I thought the smaller coil and TTF would be a killer combo but now I'm wondering? Thanks all and HH.
 
I have no problem at all using TTF and my 6x8 coil. In fact one field I hunt I wasn't able to get anything with my 11 coil in TTF so I went back with my 6x8 and got a LC, fatty indian, and some relics.
 
Hey Terry, wonder what I am doing wrong? I have the nail about 1-1.5 inches away from silver coin. Have you ever put them on the ground next to each other and tested them? I am wondering if there is a way to test my coil to make sure it's good? Thanks.
 
yes I have, and in fact I have laid the nail directly ON TOP of the coin and I still get a high tone. Hope someone chimes in here to help you on that one!
 
I use the SEF 8x6 often enough but have never tested it like that so I will do so this evening for ya.

Have to admit right up front ... I love my 10x12 SEF in a BIG WAY and have found lots of great targets right next too, under and on top of the good targets...I LIKEY .
 
utahshovelhead, thanks that would be great. I tried it again and went sloooower than a snail dragging a ball and chain and I got a very very occasional high tone blip but when I moved the nail almost touching the coin then nothing. I would love to see a video of a full hunt in TTF with several targets being found and full audio(HINT,HINT):)
 
[size=large]just so i know the code, what is TTF? don't own a e-trac but interested in how it works.

HH[/size]
 
widebody, TTF means two tones and ferrous sounds. The scale on the e-trac has 1 thru 35 on the ferrous side (first number) and 1 thru 50 on the conductive side (second number). TTF means you take the 1 thru 35 ferrous numbers and divide it in half and only use two tones, a low tone and a high tone. a high tone for 1 thru 17(or 18?) which is usually your good targets and a low tone (grunt) for 18 or 19 thru 35 which is usually trash. One reason for doing this is to eliminate nulling and masking of good targets. That is just basic info. There are allot of more experienced user out there that can probably explain it better.
 
[size=large]Pointer80, thanks. i suppose then the ex se has this TTF also?

HH[/size]
 
Goes4ever said:
yes I have, and in fact I have laid the nail directly ON TOP of the coin and I still get a high tone. Hope someone chimes in here to help you on that one!
Click to expand...

Was that in TTF mode?

Thanks,
Brian
 
I don't have the 6X8 but do have the 6" EQ2 coil. When I test on top of the ground it depends on the orientation of the nail to the coin. I can lay a 2.5" rusty nail directly on top of a coin and when sweeping the coil across the nail long ways I get no high tone at all but sweeping the other direction I get a perfect high tone with correct id, you can't even tell the nail is there at all. In the ground I think it would depend on, not just the orientation, but the depth of each individual item as well. I know that is not much help, maybe someone else will chime in. -- Randy
 
pointer80 said:
widebody, TTF means two tones and ferrous sounds. The scale on the e-trac has 1 thru 35 on the ferrous side (first number) and 1 thru 50 on the conductive side (second number). TTF means you take the 1 thru 35 ferrous numbers and divide it in half and only use two tones, a low tone and a high tone. a high tone for 1 thru 17(or 18?) which is usually your good targets and a low tone (grunt) for 18 or 19 thru 35 which is usually trash. One reason for doing this is to eliminate nulling and masking of good targets.
Click to expand...

The reason TTF is better with masking and nulling is because you open the pattern up in TTF hearing almost everything. Usually only a fine line in the bottom right and left corners are discriminated. Highest FE readings above a certain CO level, usually nails, iron, and the upper left corner, wrap around from them. When the E-Trac is nulling on rusty nails that come up closer to coins, 24-47, sometimes you will miss a coin before it recovers. Going slow helps also, but TTF is finding additional coins. I switch a lot between the two, going to TTF when I remember in areas with a lot of nulls.

ttf17-300x205.jpg
 
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