This test was conducted to gain some understanding of how the unit will ID certain relics. Obviously they are not buried or in an ideal environment for testing. These readings may be a baseline. Note the Minimum depths were at the point where the detector wouldn't overload (overload signal) or warble. Warbling was noted on certain items passing close to the coil. This sound is 4 beeps instead of one. The Maximum distance was where it still locked on the audio ID tone and the ID numbers were relatively stable.
If you will notice an interesting trend is occurring. Typically the
TID numbers go down as distance increases. But on small objects made from
relatively pure brass the TID numbers go up as distance increases. This
means essentially this unit is tuned for buttons! Also the TIDs went up
on the pewter objects tested.
| DESCRIPTION of ITEM TESTED | MIN
ID |
MAX
ID |
| .58 cal minie ball (lead) | 0"
21 |
8"
18 |
| .69 cal minie ball (lead) | 0"
25 |
10"
22 |
| .69 cal musket ball (lead) | 0"
22 |
7"
15 |
| Colt .44 cal pistol bullet (slug only, lead) | 0"
16 |
8"
21 |
| .32 cal pistol bullet (slug only, lead) | 0"
13 |
5"
19 |
| .58 cal Williams Cleaner Type III dropped (lead) | 0"
19-21 |
8"
19-20 |
| .58 cal Williams Cleaner Type III dropped, no base (lead) | 0"
19-21 |
7.5"
19-20 |
| .58 cal Williams Cleaner Type III dropped, base only (lead)
note: warble under 1" distance |
1"
8-11 |
7"
17 |
| blob the size of 4-5 minies melted (lead) | 2"
19 |
12"
20 |
| 3" 12lb cannonball frag (cast iron) | 4"
-24 |
9"
-24 |
| CS Georgia frame buckle (brass, high copper) | 4"
35 |
13"
30 |
| US oval belt plate ( sheet brass, lead filled back ) | 3"
18 |
12"
18 |
| horse harness buckle cover, (brass) | 2"
30 |
10"
26 |
| Triangle pack ring (brass) | 0"
9 |
6"
16 |
| 3" Hotchkiss time fuse (copper-brass) | 0"
37 |
10"
29 |
| 3" Hotchkiss percussion fuse (copper-brass) | 2"
39 |
8"
35 |
| suspender buckle (brass)
note: if the buckle has an iron tongue then the signal isn't steady |
0"
12 |
9"
14 |
| .52 cal Spencer casing only (brass) | 0"
14 |
7"
16 |
| percussion cap (brass) | 0"
7 |
4"
17 |
| CS local button, droop wing Eagle, 25+mm (copper-brass) | 1"
21 |
8"
18 |
| US Eagle button, vest size 22mm (brass) | 1"
9 |
7.5"
16 |
| US Eagle button, cuff size 8mm (brass) | 0"
8 |
5"
14 |
| Great Seal button 25mm (brass) | 0"
37 |
8.5"
26 |
| Enfield .577 cal Tampion, all parts (brass cap-iron pin)
note: warble in close and iron masking if sideways |
1"
29 |
8"
23 |
| wheat penny (copper) | 0"
29 |
8"
23 |
| Barber half dollar (silver) | 0"
38 |
10"
33 |
| wallet (silver) | 4.5"
51 |
14"
34 |
| Parrott 20lbr percussion fuse (zinc) | 3"
39 |
9.5"
35 |
| US canteen spout (pewter) | 0"
16 |
9"
19 |
| CS bayonet scabbard tip (pewter) | 0"
13 |
9"
18 |
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