standard t-2

[ccs]

What are the boost settings for the standard t-2 ?

 

[chuck ky]

n/t

 

[SteveP(NH)]

that is to say that there is a boost if the discrim is below 6 or above 40, so the discrim range between 6 and 39 is not boosted. I don't ever set my discrim above 15 so I wouldn't know about the higher one, but there is a definite change when you go from 5 to 6. In fact I often hunt with the discrim set at 5 and then if the machine starts to chatter too much I change it to 6.

Though I read a paper on the Tek site written by Dave J who said that if you are running at high sensitivity and the machine starts to chatter too much you are better off raising the discrim then lowering the sensitivity so lately when that happens I have been setting the discrim as high at 15.

 

[chuck ky]

i'm not sure about the lower one but i set mine at 40 when hutning tot lots to knock out all iron. i don't get a boost at 40 but when i raise the disc. it starts to chatter like there's a boost at 50 and it goes away at about 52.

 

[Utuk_Xul]

I notice the boost 4 and below... and 50 and above.

 

[Mega]

This may be a very old thread,but are the boost settings on exact numbers or a rough guide ??? over here in the UK i have had the Ltd version of the T2 but sold it soon after i bought it as someone offered me more than i payed for it.

For the last 2 years i have used the standard T2 and as yet i cannot see me changing back to the Ltd version,i usually run the T2 when hunting on farmland at 80,10,2+ with very slight adjustments up or down to compensate for the ground conditions.

Although i have been aware that a boost if that is the right word is roughly about 5 what exact number is it ?? i am not interested in he upper number increase ie 50 and above but its the lower end that i am looking for,so does it change with each machine or is it exact ??? so if i was to drop my normal setting down from 10 to 5 would i notice a depth increase or does it not work like that.

I run mine at 10 so that the T2 runs smoothly as i dont want it running erratic,so id the magical figure 5 and below ???

Thanks from the UK

 

[tabman]

I found this at another site:


Teknetics T2 / A Gain Measurement Chart
Posted by TerraDigger
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TerraDigger [ PM ]
Teknetics T2 / A Gain Measurement Chart
February 19, 2011 06:25AM Registered: 2 years ago
Posts: 1,184
The following is a ROUGH measurement of how discrimination levels affect the Gain output on a T2. This was done as a indoors air test. Sweep speed was what I consider a normal speed used when in the field. Not ultra fast as to attempt to attain maximum depth in air testing. Coin response signal accepted for measurement is a two way signal. A fringe questionable one way audio response was not considered as acceptable for measurement purposes.

""Keep In Mind Indoor EMI Affects The Depth/Noise Results. Test Is Only To Show How Discrimination Adjustments on T2 Affect The Gain Output""


Model - Teknetics T2/Software version 6.5 (from 6.0 onwards version numbers make no difference in depth according to First Texas Products)
Coin Used - U.S. Quarter - Cupronickel
Coil - 5" DD
Sensitivity - 60
Tone Selection - 4

Discrimination Levels

0 - 9" depth reading (extremely noisy due to EMI & machines internal circuitry noise)
10 - 7" depth reading (approx 50% less noise than 0 disc setting)
21 - 6 1/2" depth reading (quiet)
30 - 6" depth reading (quiet)
40 - 6" depth reading (quiet)
49 - 5 1/2" depth reading (quiet)
50 - 9" depth reading (this is where another huge increase in Gain occurs, besides the zero setting. Same noise level as 0 disc setting)
60 - 9" depth reading (approx 50% less noise than 50 disc setting)
70 - 8 1/2" depth reading (quiet)
80 - 8" depth reading (quiet)

Observation - the Gain does not seem to follow a straight linear output as disc is increased. Notice that from 0-49 disc there is a 3 1/2" range in detection depth. From 50-80 disc there is a 1" range.

0r

If you remove the disc 0-9 results from above, there is a 1 1/2" depth range between disc 10-49 and a 1" depth range between disc 50-80.

The large gain increase at 50 and the 10-49 disc range has serious implications on how a user sets the discrimination. Below are object disc ranges on T2:

OBJECT / TARGET I.D.

gum wrapper foil / 40-55 (majority of gold rings/jewelry with any detector are found within the foil range and below foil range)
U.S. Nickel / approx 58
alum pull tab / 60-75
alum screwcap / 70-80
U.S. zinc penny / approx 78
U.S. copper penny-clad U.S. dime / approx 83
U.S. clad quarter / 89
U.S. silver dollar / 94




Hopefully, we can get more T2 users to frequent Tom's if more info is made available.smiling smiley

p.s. I think I now hold the record on Tom's for the most edits to a single postsad smiley

 

[Mega]

@tabman,many thanks for the information.

 

[chuck ky]

how does the setting of 10 help the machine run smoother or less erractic. over the years on different machines i have found that if i start getting outside interference i could eliminate it by increasing thye discimination. i don't recall any interference on the t-2 but i usually run 40 in tot lots and 80 when clad hunting parks and schools. thanks

 

[ccs]

Thanks for all the info.