Broad Band Spectrum (BBS)
BBS (Broad Band Spectrum) simultaneously transmits, receives and analyses a broad band of multiple frequencies to deliver substantial detection depth, high sensitivity and accurate discrimination for a wide range of target types. This broad band of frequencies provides the detector’s electronics with more information about a target and the surrounding environment than is possible with single frequency technologies. The detector carries out advanced signal processing of these frequencies resulting in improved target identification accuracy and increased depth. This process also significantly reduces false signals from ground minerals, even in harsh and variable conditions, such as salt water beaches.
Find Different Target Types & Sizes with Every Sweep
Generally, high transmit frequencies are more sensitive to small targets and low transmit frequencies give more depth on large deep targets. BBS simultaneously transmits and analyses a broad band of multiple frequencies from 1.5 kHz to 25.5 kHz and is therefore sensitive to both small and large deep targets at the same time. This means you only need to cover the ground once, allowing you to find more treasure.
In-Coil Signal Booster
Circuitry greatly amplifies weak target signals, from small and deep targets, inside the search coil, where the signals are received. This has three main advantages over standard techniques of amplification inside the control box:
- Greater immunity to electrical noise, reducing false signals
- No loss of signal strength, and faint targets, through the cable
- Improved detection depth and sensitivity
Accurate Multi-Channel Signal Conversion
BBS analyses multiple signal channels through a technique called multiplexing (MUX). These signals are compared to a digital reference (Vref. and DAC). The end result is high resolution accurate target signals that can be identified by the detector’s microcontroller (MCU). This analogue-to-digital conversion technique allows BBS to separate ground signals from target signals, achieving great depth and stability in difficult conditions.