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Steve Herschbach

Five Frequency Times Eight

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5F×8 (used in EQUINOX 800*)

 5F×8 (Five Frequency Times Eight) provides five individual transmit frequencies in the one metal detector, selectable at the push of a button. Each transmit frequency optimises the detector for different size targets and conditions. EQUINOX 800 offers 5 single frequencies of 5, 10,15, 20, and 40 kHz, giving an 8 times range or ratio from 5 to 40, hence the 5F×8 technology designation.

The individual selectable frequencies in EQUINOX 800 are:

  • 5 kHz - Great for large silver coins
  • 10 kHz - Good for small Roman hammered coins
  • 15 kHz - A good general treasure detecting mode
  • 20 kHz - Ideal for general treasure detecting and gold prospecting
  • 40 kHz - Optimum sensitivity to very small gold nuggets

Having five selectable frequencies gives the versatility that is equivalent to five conventional single frequency detectors.

Note that EQUINOX Series detectors also feature Multi-IQ technology which allows you to operate all available single frequencies plus more, simultaneously. The option to operate your detector in a single frequency can be helpful if you are experiencing excessive ground noise when using the Multi-Frequency setting.

*The Equinox 600 3F×3 (Three Frequency Times Three) offers three single frequencies of 5, 10, and 15 kHz, giving a 3 times range or ratio from 5 to 15, hence the 3F×3 technology designation. However, both the Equinox 600 and Equinox 800 offer identical Multi-IQ modes covering the full frequency range. The Equinox 600 simply disallows direct access to the 20 khz and 40 kHz single frequency modes.

More on selectable frequency and frequency spread here.

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So when you say the 600 disallows access to the top two frequencies is this something in the reading material?  :{)  Are the goodies in the box waiting for curious fingers to turn on.....

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From http://www.detectorprospector.com/forum/topic/4488-minelab-equinox-multi-iq-technology-part-2/


“* 20 kHz and 40 kHz are not available as single operating frequencies in EQUINOX 600. The Multi-IQ frequency range shown applies to both EQUINOX 600 and 800. This diagram is representative only. Actual sensitivity levels will depend upon target types and sizes, ground conditions and detector settings.“

Access to the Gold Mode and therefore the 20 kHz and 40 kHz single frequencies is limited to the Equinox 800.

Gold Detecting Mode - Gold Mode operates the high single frequencies of either 20 kHz or 40 kHz to detect gold nuggets in mineralised soils.”


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3 hours ago, Steve Herschbach said:

Gold Mode operates the high single frequencies of either 20 kHz or 40 kHz to detect gold nuggets in mineralised soils.”

While perhaps not quite up to the GM1000 in sensitivity to the smallest nuggets I'd bet it will be a real blow to the rest of the competition.

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Thanks for that Steve.  I'd read it but it didn't click.  So I reckon it wont be long till there is a hack.... well a few years maybe if you like your warranty ;) and have a couple of grand to break things with. Hahh.  I was excited and well pleased with the new tech of the Zed so I am keeping an eye on this as my old DFX is a bit long in the tooth for a multi freq park sniper.

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Detector manufacturers often make one main board for manufacturing volume and efficiency. The top model has all the features activated. Less expensive models they simply limit access to some features, but it is the same detector under the hood. For instance, a White's VX3 is the same circuit board as a V3i with a few features turned off. However, it is not a matter of going in and flipping a switch - the limitations are usually encoded in the firmware. A basic $499 Fisher Gold Bug is the same as a Gold Bug Pro internally. They just took away your access to the manual ground balance. Everyone does it and not just in the detector industry.

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