Minelab Metal / Gold detector modifications SD2000 SD2100 SD2100E SD2200 SD2200V2 GP Extreme GP3000 GP3500 GPX4000 GPX4500 Detectormods is part of Link Technologies.
There is a lot of information about setting up your detector, even some of the so called professional prospector video's have some instructions that is plain and outright wrong. I have used every Minelab detector since the first edition VLF tin box detectors. I keep fully informed by talking to full time users of these detectors. Lets sort out the crap from the truth.
SD2000 This is a very capable detector, Bruce Candy did a fine job designing this 2 channel pulse induction unit. Even today, the receiver is cutting edge technology but can be improved on.
Setting up a SD2000 is very simple, just turn it on preferably using a DD coil as the detector does not have a lot of filtering for ground noise. Adjust Threshold for a slight background tone, switch the front panel switch into channel 1 and at the rate of 2 up and down movements per second at between 3 to 6 inches above the ground pump the coil up and down and adjust the 10 turn pot for channel 1 until the tone is steady while pumping the coil up and down. Now do the same for channel 2. When both channel 1 and 2 are balanced put the switch into the middle position and go prospecting. Swing the coil slow and keep the coil as close to the ground as possible. The ground will change as you detect and this means that you will have to adjust the ground balance controls to compensate. note that channel 2 will need more attention than channel 1.
