White's Spectra V3 Field Reports
- Thread starter CyberSage
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- whites spectra v3
The sweep speed of the coil is only effected by the filter setting with 5Hz being the slowest and 12.5Hz being the fastest.
The sweep speed In/s in the analysis screen only deals with the ruler on Analysis screen only and is only for helping setting the ruler size in distant.
rcsnake
The sweep speed In/s in the analysis screen only deals with the ruler on Analysis screen only and is only for helping setting the ruler size in distant.
rcsnake
Lowjiber
Forum Supporter
I didn't really explain what I was driving at above. I was just amazed that my in/sec were so fast. I thought I was just about right.
Thanks guys n gals.
Rudy
Admin
I didn't really explain what I was driving at above. I was just amazed that my in/sec were so fast. I thought I was just about right.
Thanks guys n gals.
John, figure about 2 seconds per sweep as the normal speed. When you switch to a program like deep silver which uses the 5 Hz frequency filter, slow down to about half speed or around 4 seconds per sweep. A sweep is the traverse from left to right, or right to left.
CyberSage
Elite Member
This would be nice reference to have worked up on a chart. Thanks Rudy for the info.
Lowjiber
Forum Supporter
After reading snake's comment, I played with the Analyze screen a bit last night...moving the coil short distances over a target at varying speeds. I came to realize that I really don't even need to set the in/sec parameter because I really don't care about the dimension of the target...only the amplitudes and shapes of the frequencies. I'll set mine at 40in/sec just to make life easier, but it's not a big deal (to me).
CyberSage
Elite Member
I went for a short hunt in the old park by my house Thursday evening. I was using the super12 coil experimenting with the 2.5 kHz frequency. I basically chose the Coin & Jewelry program and set Tone ID, Volumes, VCO Pinpoint, Sensitivity and Frequency. I hunted an area that had produced deeper finds in the past hoping to pick up on some missed targets. It was not long and I had a good target that pinpointed to 9 inches deep. I cut a large plug and scooped dirt out onto my digging cloth. I probed the hole with the DX-1, I could not find the target. I ran the coil over the hole again and it had a very clear toned response. Checking again with the probe I found the target in the front wall of the hole 7 inches down. An off center pinpoint usually means a rusty nail or a coin on edge. It was at this time I really wished I had a DC Phase option on the SV3 like on the DFX. I switched to best data mode and probed the spot to see the dominant frequency bar being displayed. The display showed I had a target that was more responsive to the 2.5 kHz followed closely by the 7.5 kHz. This would lead me to believe I had a nonferrous target. I dug carefully with the tip of a brass probe in the side wall and soon revealed a Wheat Penny turn on edge with the flat of the coin facing the open hole. That is a fairly impressive depth for a coin on edge. Just thought I would share the hunt and this by the way is my first official keeper with the SV3.
Keep Swing'in
Jack
Keep Swing'in
Jack
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davidtn
Junior Member
WTG Jack! Keep us posted on your Vision experiences.
BountyHunter
Elite Member
For the first keeper with the Whites SV3
Really sweet post there CyberSage!
All the science to get at the target was great reading, thank you
Really sweet post there CyberSage!
All the science to get at the target was great reading, thank you
CyberSage
Elite Member
Went for another short hunt today. Got rained out, but not before I dug a few Wheats. One of them was deep. A picture is worth a thousand words I guess...
1918 D Wheat was loud and clear on the SV3 and measured at just over 9 inches deep. Thats a Lesche digger in the hole. Needless to say I am very impressed and the DFX is now officially for sale. I experimented with filter settings before I dug and the 7.5 High setting produced the best response according to my ears. I was hunting in the lowest filter setting and in the Correlate mode with a slower recovery time when I first found the Wheat. Let the fun begin.
Keep Swing'in
Jack
1918 D Wheat was loud and clear on the SV3 and measured at just over 9 inches deep. Thats a Lesche digger in the hole. Needless to say I am very impressed and the DFX is now officially for sale. I experimented with filter settings before I dug and the 7.5 High setting produced the best response according to my ears. I was hunting in the lowest filter setting and in the Correlate mode with a slower recovery time when I first found the Wheat. Let the fun begin.
Keep Swing'in
Jack
Lowjiber
Forum Supporter
Nice report Jack. I've got so many pics with my Lesche halfway up the handle that I've quit taking them anymore.
I've had to start digging slightly wider plugs now on targets at 9"+ just so I can get the safety guards down in the hole. Life is tough.
I've had to start digging slightly wider plugs now on targets at 9"+ just so I can get the safety guards down in the hole. Life is tough.
What better way to show the depth Jack of the V3.
Was wondering if you started to play with the different audio modulation settings and even try turning it off on the V3 yet?
On mine I will run it on 4 , 5 and Off, depending on the amount of nails and iron in the ground.
rcsnake
Was wondering if you started to play with the different audio modulation settings and even try turning it off on the V3 yet?
On mine I will run it on 4 , 5 and Off, depending on the amount of nails and iron in the ground.
rcsnake
CyberSage
Elite Member
I was running with it off. I was not aware that it could be set to different levels.
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CyberSage
Elite Member
Found it! Thank you for that info.
Modulation –When selected deeper or weaker target signals produce a difference in
the volume or intensity of the target response “beep”. Deeper signals produce softer
sounding “beeps”. Most experts prefer modulation because the deeper (more likely to
be valuable) targets are more easily recognized compared to shallower targets signals.
When recognized as a deeper target, the discrimination and display information is
given more attention as these targets typically produce less reliable discrimination
and display information.
• Range – Selects the modulation range. Selects the specific strength of a target
signal that initiates a reduced audio “beep”. The range is selectable for three reasons -
1) First, ground mineral conditions vary how modulation performs. Low
mineral grounds will not provide the same results as high mineral ground. 0 provides
very little change in ‘beep’ volume or intensity in low mineral ground. 5 will provide
the largest variable in “beep” volume or intensity in low mineral ground.
2) Secondly, Some experts prefer modulation that will provide a gradual declining
scale as target signals are found deeper into the ground. Others prefer that only
the deepest targets provide any declining “beep” volume or intensity.
3) Third, ground mineral anomalies (small hot rocks) can cause a weak signal
response. By adjusting modulation, quite operation can often be achieved in
difficult ground conditions.
Modulation –When selected deeper or weaker target signals produce a difference in
the volume or intensity of the target response “beep”. Deeper signals produce softer
sounding “beeps”. Most experts prefer modulation because the deeper (more likely to
be valuable) targets are more easily recognized compared to shallower targets signals.
When recognized as a deeper target, the discrimination and display information is
given more attention as these targets typically produce less reliable discrimination
and display information.
• Range – Selects the modulation range. Selects the specific strength of a target
signal that initiates a reduced audio “beep”. The range is selectable for three reasons -
1) First, ground mineral conditions vary how modulation performs. Low
mineral grounds will not provide the same results as high mineral ground. 0 provides
very little change in ‘beep’ volume or intensity in low mineral ground. 5 will provide
the largest variable in “beep” volume or intensity in low mineral ground.
2) Secondly, Some experts prefer modulation that will provide a gradual declining
scale as target signals are found deeper into the ground. Others prefer that only
the deepest targets provide any declining “beep” volume or intensity.
3) Third, ground mineral anomalies (small hot rocks) can cause a weak signal
response. By adjusting modulation, quite operation can often be achieved in
difficult ground conditions.
Pretty sure it is reversed as 0 provides a great deal of modulation and a setting of 5 provides very little modulation. While off provides full beep Audio. The main thing I use it for is on nails, as some of the areas that I hunt has lots of nails in it and the modulation being totally off will make them irritating to the ears. This is especially true with the way it chatters on some these chunks of iron in our mineralized ground. This was really noticeable on the DFX and with the V3 I have notice this some but not near like the DFX. Hence I like to use just a little modulation for this reason but not much, as I need the target to bang hard so the V3 will wake me up and say wake up dummy there is a target down there that is wanting to be dug up.
rcsnake
rcsnake
CyberSage
Elite Member
I like the target to really sound off as well. I have been using Correlate mode with a span setting of 25 to quiet the deep iron. I am used to VDI sensitivity settings on the DFX to work with this issue but, the span setting seems to do the trick. I will give the Modulation Range setting a try.
Keep Swing'in
Jack
Keep Swing'in
Jack
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Hey Jack
Just a quick note on correlate mode two of the three frequencies must agree for the audio to respond, but the Spectragraph will still show all the data from all three.
Also worth looking at is the wrap feature for those targets that wrap around the corner when using the correlate mode.
In my mineralization I usually don't use the correlate mode as I prefer the best data mode but that's what i like and what I like may not be the same for everyone. That is what is nice about the V3 as ya set it up and use the way you like it.
rcsnake
Just a quick note on correlate mode two of the three frequencies must agree for the audio to respond, but the Spectragraph will still show all the data from all three.
Also worth looking at is the wrap feature for those targets that wrap around the corner when using the correlate mode.
In my mineralization I usually don't use the correlate mode as I prefer the best data mode but that's what i like and what I like may not be the same for everyone. That is what is nice about the V3 as ya set it up and use the way you like it.
rcsnake
CyberSage
Elite Member
What logic does the detector use in deciding which two frequencies to use? Is the criteria just that any two frequencies that fall with in the span limit give a response? This kind of makes the 7.5 kHz the middleman if the wrap feature is disabled. Am I understanding this right?
Keep Swing'in
Jack
Keep Swing'in
Jack
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