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.
Detecting near power lines
- Thread starter Bottleman
- Start date
Leslie(nova scotia)
Well-known member
From the land of the Bluenose...it is true. McDonald Park here is right by the overhead lines and a great place to hunt. My Garretts chatter like crazy there. Hunting Bud Bardman uses a White's and it doesn't seem to affect his machine. I was wondering too if atmospheric conditions also , at times drie machines to chatter?
Power lines, either overhead or below ground, can make a machine go nuts by inducing signals into the circuitry. These are transient, AC signals and can be quite overpowering directly below high tension lines.
Good shielding is the only answer, although it can be costly and is why some of the lesser machines have trouble with power lines. You could open the case, shield the interior with metal tape and attach a wire to the circuit ground. That would fix it. Probaly be a good idea on the 250 - although it would void the warranty, I suppose.
Makers could do what Tesoro did years ago and inpregnate the plastic of their housings with metal fibers, effectively shielding them. They called it "monolithinc shielding".
Or you can adapt. Turn your sensitvity down. Go elsewhere to hunt. Etc.
David
Good shielding is the only answer, although it can be costly and is why some of the lesser machines have trouble with power lines. You could open the case, shield the interior with metal tape and attach a wire to the circuit ground. That would fix it. Probaly be a good idea on the 250 - although it would void the warranty, I suppose.
Makers could do what Tesoro did years ago and inpregnate the plastic of their housings with metal fibers, effectively shielding them. They called it "monolithinc shielding".
Or you can adapt. Turn your sensitvity down. Go elsewhere to hunt. Etc.
David
High voltage power lines (7600v-750000v) are rarely insulated. Of course buried lines are insulated. Insulation for high voltage lines would be very heavy and bulky. Probably the higher the voltage the more interference but in cases where there is leakage across the insulators a lot of interference can come from lower voltages.
Uncle Willy
New member
It happens all the time and to the best of us.
Bill
Bill