White’s Electronics Spectra V3 - Manual (Page 24)

24 Complete Owner’s Guide - Spectra
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Frequency (Primary) -
• Allows selection among a variety of primary frequency options.
• Three Frequencies – Allows three primary frequencies to be transmitted and received. Three
Frequencies is normally the best choice for general searching.
• Salt Compensate – Selects an optimum frequency configuration to subtract wet conductive salt
water for use on the saltwater beach, (hunting ocean beaches) or alkali desert regions when wet or damp.
• 2.5 kHz – Selects single frequency operation at 2.5 kHz. 2.5 kHz is ideal for hard, larger, high
conductive metals, Silver / Copper.
• 7.5 kHz – Selects single frequency operation, the medium 7.5 kHz. 7.5 kHz is a good middle of the
road frequency for all types of metals.
• 22.5 kHz – Selects single frequency operation at 22.5 kHz . 22.5 kHz is ideal for softer, smaller,
medium to low conductive metal types, such as Gold / Nickel.
Note: Battery life will vary with single frequency selection, generally reduced battery life at 2.5 kHz
notably when Tx Boost is used. Higher frequencies are more battery friendly.
• Frequency Offset – Allows a user to slightly offset the primary operating frequency or frequencies of
the Spectra to avoid interference from other metal detectors operating nearby and from external
electrical interference. Frequency offset doesn’t significantly affect performance other than to reduce
or eliminate interference from other electronics operating nearby and thus may allow higher Rx Gain
settings.
• Press ARROW Left & Right to choose an offset that avoids area interference.
• If hunting near other metal detectors, offset allows near shoulder-to-shoulder
search separation distances without interference between detectors.
• This feature offsets actual operating frequencies. Wireless headphones are different
and have their own Channel and Power selections to avoid audio wireless headphone
interference. Wireless Headphone options are detailed under AUDIO section.