Reading the book I understand RX gain and what it does but how does it affect discrimination? Book says Discrimination is secondary to RX Gain. Does that mean if you have to turn RX down should you also turn down Disc in conjunction with it and vise versa? Could someone please explain Disc, and all metal and what they do in laymans terms. The book doesn't go in detail. Thank You Robert for your responses yesterday. I exchanged the V3i for the V3, it seems simplier for me anyway, and all is working great. I did tho configure all my colors green red blue in all programs, its easy for me to remember the same colors as per freq. Love this forum...Thanks all...Ron
Find's Treasure Forums
Welcome to Find's Treasure Forums, Guests!
You are viewing this forums as a guest which limits you to read only status.
Only registered members may post stories, questions, classifieds, reply to other posts, contact other members using built in messaging and use many other features found on these forums.
Why not register and join us today? It's free! (We don't share your email addresses with anyone.) We keep email addresses of our users to protect them and others from bad people posting things they shouldn't.
Click here to register!
Need Support Help?
Cannot log in?, click here to have new password emailed to you
Changed email? Forgot to update your account with new email address? Need assistance with something else?, click here to go to Find's Support Form and fill out the form.
RX Gain & Discrimination
- Thread starter ronpa1
- Start date
No what the manual says is, "Usually Discrimination Sensitivity is secondary to Rx Gain to reduce external electrical noise or interference."
Use the Rx gain to accommodate interference and then to utilize the Disc Sensitivity to optimize depth. The disc sensitivity level tells the detector when to sound and show a target. When the filtered signal gets above the disc sensitivity level, it triggers that there is a target. For real depth, the important setting is the Discrimination or All metal sensitivity settings. These settings are what make the detector more sensitive to deeper and smaller targets.[attachment 171546 ani_einstein.gif].............Rob
Use the Rx gain to accommodate interference and then to utilize the Disc Sensitivity to optimize depth. The disc sensitivity level tells the detector when to sound and show a target. When the filtered signal gets above the disc sensitivity level, it triggers that there is a target. For real depth, the important setting is the Discrimination or All metal sensitivity settings. These settings are what make the detector more sensitive to deeper and smaller targets.[attachment 171546 ani_einstein.gif].............Rob
Larry (IL)
Well-known member
In addition to Rob's info, it might help to think of Discrimination Sensitivity as motion mode sensitivity, as in hunting, and All Metal Sensitivity as Non-Motion mode sensitivity as in pinpointing.
Larry (IL)
Well-known member
I turn down sensitivity in tot lots where depth is not a concern and I can hunt around the playground equipment better. Another one is when you are looking for surface targets like a lost ring or in a seeded competition hunt, anytime you do not need or want to hear everything in the ground. Some ground has patchy spots of iron or trashy parks are a couple more reasons.
I'm beginning to understand Rob, so turning down sensitivity would mean a lower number. say C&J mode is factory set at 80...if I want to hunt surface like tot lots then from 80 I go down say 65 or lower ye? YES So the lower the number I less discrimination? Thanks Ron The lower the number the less sensitive your detector becomes. They should have called it sensitivity so as not to confuse it with what I think of as discrimination which is what VDI numbers the detector will not respond to. The V has 3 sensitivity controls, RX, Discrimination, and All Metal. Put a very small piece of foil or small stud ear ring on the ground. Adjust the discrimination higher and lower and see what happens. Rob[attachment 171569 Reading.gif]
Basically the RX gain is making the target louder, presumably then, you can hear a deeper target better. If you cant hear it , you cant dig it.
The real increase in depth comes from the Discrimination (AC sensitivity), which increases
the ability of the detector to hear targets. In other words, it makes the detector more sensitive to smaller or deeper targets.
Basically the RX gain is making the target louder, presumably then, you can hear a deeper target better. If you cant hear it , you cant dig it.
The real increase in depth comes from the Discrimination (AC sensitivity), which increases
the ability of the detector to hear targets. In other words, it makes the detector more sensitive to smaller or deeper targets.
I did the test, yes small piece of foil at 85 in hi pro got my beeps, at 100 faster beeps more sensitive, at 65 less sensitive, beep maybe 1 way...Thanks Rob, this one was trickey for me, whites should put out a scale when explaining disc sens..might help the nebies. I'm going out tonight on my first hunt took me a day to set up all my programs. tone ID etc, I really like you tone ID explaination in one of the other threads..Thanks a million Ron
BJ in Okla.
Active member
TX boost just puts more power, signal INTO the ground Right ????
How do you know when to use TX boost ???
BJ
How do you know when to use TX boost ???
BJ
BJ in Okla. said:
From my understanding. Tx boost is a great tool to use when you are getting falsing and you are running pretty hot. I had a setting of 14 rx gain and 93 on disc and was getting some falsing. I didnt want to loose the depth I was getting so I turned on tx boost and lowered my Rx gain to 8, I left the disc. at 93. My falsing went away and I was still able to maintain the depth I was looking for.
You might think, Why dont you do this all the time then?
Well, for me, the tx boost really drains the battery's and I dont need it all the time. Only when I get into those falsing areas that I need the depth on. This may or may not work for everyone, but it works for me.
Rob, got all my programs set, tomorrow going outI've learned alot this week on this forum, rewatching whites vids on the V3, re reading the manual funny how in time all seems to come together. I got the configuration down pat, so thanks to you and the fox magic BJ in OK, Im ready to roll. Thanks guys, hope someday I can help you all, God Bless...Ron
BJ in Okla.
Active member
I was using my V-3 with the 5.3 coil hunting in the C & J mode.
I was checking targets with a friend, he was using another brand with a 11" coil.
One target, he said, I don't think you will pick this up with that small coil, its deep.
I could not get a sound, so I maxed the sens, nothing, I maxed the RX gain, nothing,
so I turned on TX boost and there it was, good sound and id and it showed deep....
My friend dug a 11" deep hole and at 10" in the side, on a angle was a old wheat back.
This was not a guess on the depth, I had a small tape, ten inches.
Not bad for a small coil...
HH...BJ
I was checking targets with a friend, he was using another brand with a 11" coil.
One target, he said, I don't think you will pick this up with that small coil, its deep.
I could not get a sound, so I maxed the sens, nothing, I maxed the RX gain, nothing,
so I turned on TX boost and there it was, good sound and id and it showed deep....
My friend dug a 11" deep hole and at 10" in the side, on a angle was a old wheat back.
This was not a guess on the depth, I had a small tape, ten inches.
Not bad for a small coil...
HH...BJ
That is my understanding also... RX only amplifies what you are already hearing. Disc sensitivity helps you gain depth... HOWEVER... I have seen the V3 do fine with the disc sens set on 20 and the RX turned up to 13 or 14. I can rarely get the RX stable on 15 even with the disc sens on 20 but I can hit coins at 9" with disc=20 and RX=12. I usually run the RX on 4 and the disc sens a little below the factory settings. The V3 is very sensitive even if you have to lower the disc sens a bit.
But... I agree with your post. I read an early post by J.S. that said the same thing.
J
But... I agree with your post. I read an early post by J.S. that said the same thing.
J
Neil in West Jersey
New member
Although the two are related, RX Gain and Discrimination Sensitivity do operate independantly. They have different symptoms of being set too high. If discrimination sensitivity is set too high, you will notice erratic behavior when the detector's coil is held at waist level. When the RX gain is set too high, you usually will not have erratic behavior while holdiing the detector with the coil at waist level, but you will get false readings when the coil is swept over the ground.