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BH Big Bud XL

Operating Manual

The Bud-series detectors

NOTE: Images are excluded due to the memory requirements; therefore, there will be references to illustrations that do not exist in this text only document.






General Info

Bilateral Description


S-Rod Assembly

Mounting the Coil

Mounting the Control Panel


Location of Batteries

Battery Replacement


Position Control

Sensitivity Control

Low Battery Indicator


Analog Meter Readout

Visual Target Identification


Location of Toggle Switch

Toggle Switch Positions


All Metal



Audio Target Identification

Three-Tone Target ID


Ground Retune



Auto Notch




Searchcoil Movement

Repeatable Signals



Proper Coil Swing


Where to Send Your Unit for Repair

Treasure Hunter's Code of Ethics

XIV. Warranty Info



Welcome to the fascinating world of metal detecting.

Your new Big Bud XL was designed for versatility in all areas of treasure hunting.

Coin-shooting, relic hunting, and gold bugging are some of the many ways your detector can be utilized.

Metal detecting is a fun, rewarding hobby that is in complete harmony with the environment.

Use your detector with consideration and respect for others' property. Always fill in your holes and use small trowels for digging. If you are digging in a lawn, plug the grass properly and there will be no damage to the grass.

Always gain permission upon entering private property.

Detecting is a lifelong pursuit available to all ages. History is intriguing and is revealed every time you dig up a coin or relic of the past. Happy hunting!

Important: Your Big Bud XL has two distinct systems in one:

I. ALL METAL Mode with Audio Threshold, automatic Ground Balance control and Toggle Switch Tuner. In this setting, detected targets will cause the detector to sound off for as long as the target is under the searchcoil. No other controls will affect the unit when the Toggle Switch is in ALL METAL setting only.

II. DISCRIMINATE/PULL TAB REJECT Mode with Three Tone Audio Target Identification, Sensitivity Control, Automatic Ground Balance and "Motion" Automatic Tuning. In this setting, iron is rejected and the Discriminate Control is used to reject various levels of trash items. Motion is now required to make a detection and items held still under the searchcoil will be tuned out.


Assembly of this unit is easy and requires no special tools. The only assembly required is to attach the search coil and lower stem to the upper stem and on to the control housing. Fresh batteries can then be installed and the detector will be ready for use.

1. Depress the adjustment button on the lower stem.

2. Push the lower stem into the upper stem.

3. Wind the search coil cable around the stem. CAUTION: Provide enough slack in the cable near the search coil so that the coil may be rotated easily.

4. Position the lower stem adjustment button into the upper stem adjustment holes. The stem length can be adjusted to fit the person using the detector.

Approximately 90% of metal detector problems are caused by weak, dead or improperly connected batteries. If the unit does not come on, or comes on and has weak volume, will not tune properly, or has erratic operation or drifts, CHECK THE BATTERIES. Always remove batteries for prolonged storage of unit.


The Low Battery indicator light will come on and stay on whenever the batteries need replacing. It will always "flash" momentarily whenever the Power Switch is turned off. This lets you know it is working properly and batteries are good.


The BUD XL uses two 9 volt transistor batteries. Access to the batteries is gained by pulling off the two snap-on covers located on the bottom of the detector. Attach batteries to battery snaps and replace the covers. USE ALKALINE BATTERIES ONLY!!

NOTE: Batteries will last longer with the use of headphones. A headphone jack is provided and can be used with any 1/4" stereo-type headset.

POSITION control: Used to turn the unit on and to set the mode to be operated from: DISC, NOTCH, and AUTO NOTCH.

A. DISC: The Discrimination mode. The toggle switch needs to be in the left stationary position. TOPDECK CONTROL PANEL

The DISC/NOTCH control is used to adjust its discrimination factor.

B. NOTCH: The manual Notch mode. The toggle switch needs to be in the left stationary position. The DISC/NOTCH control is used to adjust the Notch factor (Counterclockwise from 12:00)

C. AUTO NOTCH: The automatic Notch mode. The toggle switch needs to be in the left stationary position. The DISC/NOTCH control does not affect this mode. Only the AUTO NOTCH WIDTH control can adjust the setting.

SENSITIVITY control: Used when the unit is not in disc mode. Toggle switch has to be in the middle position (All Metals). Usually adjusted to less than maximum or false signals may occur.

LOW BAT. indicator (LED): Will blink when turning the unit on and off to indicate that the batteries are good. If the light comes on and stays on, the batteries will need replacement.


ANALOG METER READOUT: The meter system will give a visual readout of what type of metal is being targeted and what denomination of coins are detected. The meter will usually lock on when a good target is being detected.

GOLD/SILVER range: Indicated on the top of the readout. The gold spectrum is to the left of the meter and the silver spectrum is to the right. Other types of metal fall under both spectrums such as iron, foil and nickel under the gold spectrum and copper pennies under the silver spectrum.

ZN 1¢: Indicates that the coin is a zinc penny. Will usually emit a medium tone when targeted.

S. CAP: Indicates that the target is a Screw Cap.

P. TABS: Indicates that the target is a Pull Tab.

IRON/FOIL: Indicates that the target is either iron or foil. Will usually emit a low tone.

COIN DENOMINATIONS: All U.S. coins are indicated by their value from 5¢ to 1$.


PINPOINTING AND MODE TOGGLE SWITCH: This is a three position switch with one 'momentary' and two 'lock' positions. The center 'lock' position is the ALL METALS pinpointing mode. From this center position the momentary position can be used for instant retuning of the AUTOMATIC GROUND BALANCING. The second 'lock' position (to the left) places the detector into its normal silent search motion mode.


The BUD XL offers both Disc motion and All Metals non-motion. This means that the search coil must be moving slightly to detect the presence of metal while in the Discrimination Mode. The motion required is slight and pinpointing of the target is very easy. In the All Metals Mode (Toggle Switch in the center) the detector does not require motion to detect a target.

When using both modes, the VIEWMETER will give a visual indication of what type of metal or target is being detected as specified by the Gold spectrum, Silver spectrum and coins listed.

a. ALL METAL: Set the Mode Switch to the center position and the detector will detect all metals. In this setting the detector does not require movement to emit a tone for targets being detected. There is only one tone instead of three.

b. DISCRIMINATE: Set the Mode Switch to DISC (on the left) and most trash items can be rejected. Adjust the DISC/NOTCH control clockwise to eliminate foil and pull tabs. Be aware that discrimination of Pull Tabs will cause nickels and some gold rings to also be rejected. When using the DISC/NOTCH control in this setting you will only detect silver, copper and brass. On occasion, oxidized metal will also be detected.


AUDIO TARGET IDENTIFICATION: The BUD XL offers three tones for audio identification of what types of metal are being detected. These three tones are only emitted in the Discrimination mode. The toggle switch needs to be in the left stationary position. If the toggle switch is in the center position, All Metals mode, there is only one tone emitted.

IRON/STEEL: On most iron and steel objects there usually will not be a tone emitted. On occasion, if the iron is highly oxidized, a tone may be emitted. For instance, some rusted bottle caps will emit a high tone and lock on penny on the meter readout.

GOLD/NICKEL: All nickels and most gold items will emit a low tone. There is a percentage of gold rings, around 15% that emit a medium tone, but the meter will still read under the gold spectrum.

OLD & NEW PULL TABS: These will usually emit a medium tone or no tone at all if in the Auto Notch mode. If a pull tab is broken in half, the "Beaver Tail" part will still emit a low tone. There are also pull tabs that are bent and folded that may also emit a low tone.

COPPER, SILVER & BRASS: These metals will all emit a high tone in the Discrimination mode.

GROUND BALANCE: The BUD XL offers automatic Ground Balancing in both the Disc Mode and the All Metals Mode.

If the unit is going off constantly in the All Metals mode, hit the toggle switch to the right to retune it to the soil conditions you're hunting in. If properly tuned, the unit will not emit a tone unless the coil is over metal.

PINPOINTING: The All Metals mode is also called the pinpointing mode. In this mode you will be able to easily pinpoint where the target lies to eliminate unnecessary digging. When pinpointing a target, try drawing an "X", as illustrated, over where the tone is being emitted the strongest. Further info is included in the Searchcoil Techniques chapter.

AUTO NOTCH: This control will automatically cancel most of your pull tabs while still giving a low tone for nickels and gold with a high tone for silver and copper. Adjust the AUTO NOTCH WIDTH control to increase or decrease the range of discrimination while using the AUTO NOTCH mode. Zinc pennies and screw caps can be eliminated completely when using the AUTO NOTCH WIDTH control.

NOTCH: This setting will allow the user to manually control the Discrimination factor by eliminating unwanted trash items and bringing in more valuable items such as gold and silver. Try adjusting the DISC/NOTCH control counterclockwise from 12:00 to manually eliminate pull tabs while still detecting nickels and most gold items.

DISC: This position is also directly adjusted by the DISC/NOTCH control. By turning the DISC/NOTCH control clockwise the detector will eliminate foil and aluminum while only detecting silver and copper -- depending on how high it is set. Gold and nickel will also be eliminated if tuning the DISC/NOTCH control clockwise. When the DISC/NOTCH control is placed fully counterclockwise, the detector will pick up all nickels and gold rings along with pull tabs and copper/silver coins.

With the detector in the search position, swing the search coil gently side-to-side, slightly overlapping each sweep as you move forward. Make sure you keep your search coil approximately 1/2" above ground as you search. Raising it in the sweep or at the ends of your sweep will cause false readings. Move slowly, hurrying will only cause you to miss targets.

Most good objects will respond with a good repeatable signal. When in the discrimination mode, set by your toggle switch to the left, iron and steel objects generally do not respond. False signals can be caused by trashy ground, electrical interference, or by large irregular trash objects. These signals are easily recognized by their often broken or unrepeatable nature.

The Bud XL is a very sensitive and deep-seeking detector. It will loudly respond to many targets that other detectors would only emit a weak signal for. Because of this, trash-induced signals and other sources of interference may emit signals that seem confusing. The main key to handling these types of false signaling is to dig only those targets that emit a strong repeatable signal. As you sweep the search coil back and forth over the ground, learn to recognize the difference between the signals that occur at random and signals that are stable and repeatable.

When searching very trashy ground, it is best to scan small areas with slow, short overlapping sweeps.

REMEMBER: The detector will beep just as the center of the searchcoil passes directly over the buried target.

If you have difficulty pinpointing very strong signals, try lifting the coil higher off the ground until a weaker but more concise signal is heard. For very weak signals try moving the coil in short quick sweeps closer to the ground.

COIL MOVEMENT: When swinging the coil, be careful to keep it level with the ground about one to two inches from the surface. Never swing the coil as if it was a pendulum.


Accurate pinpointing takes practice and is best accomplished by "X-ing" the suspected target area.

1. Once a buried target is indicated by a good tone response, continue sweeping the coil over the target in a narrowing side-to-side pattern.

2. Take visual note of the place on the ground where the "beep" happens as the coil is slowly moved side-to-side.

3. Stop the coil directly over this spot on the ground.

4. Now move the coil straight forward and straight back towards you a couple of times.

5. Again make visual note of the spot on the ground at which the "beep" occurs.

6. If needed "X" the target at different angles to "zero in" on the exact spot on the ground at which the "beep" happens.

We don't want you to have any problems with your detector, but it does happen occasionally. If your detector fails to operate at all, first check the batteries. If the unit still does not operate, try clicking the Power Switch on and off a few times. Sometimes they stick in the off position.

If you have any questions you may want to call the factory and ask for assistance.

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