Is the Explorer a true multi-frequency detector or not.

[Anonymous]

After making a post to the "Is the Explorer a true multi-frequency detector or not?" question, I realized it wasn

 

[Anonymous]

Good point, Bill. Here's how I understand it.
The Explorer transmits a pulse train. It inherently is made up of many frequencies, I've never put one on a spectrum analyzer so I cannot comment on how many significant frequencies there are. But let's say there are at least 28.
Every Minelab advertisement I can recall specifies that it transmits 28 frequencies. I've never seen an ad that says it uses all 28 frequencies in the receiver. So there is no false claim here. Eric could also advertise that his Deepstar transmits 197 frequencies, and he would be correct.
I have read somewhere (and I cannot remember where) that BBS and FBS use 3 I/Q demodulators, thus they look at only 3 frequencies at a time. (Maybe it's really 4.) The 3 frequencies that are used, as I understand it, can vary. I suppose it's possible that the Explorer steps through 28 demod frequencies and chooses the "best" 3, but I suspect that the 11 channels are preprogrammed with certain frequency combinations and the 11 channels are stepped through to find the overall best one. I could be completely wrong about this and would love to know for certain.
Dave, you mentioned 4 "signals" for the CZ and DFX, I presume you mean 4 I&Q signals. So the Explorer would use 6 signals.
Others questioned what it matters as long as it works good. From a typical user's point-of-view, I agree that most don't care, and I agree that Minelab is putting out good detectors. I have an Explorer but have not taken the time to learn how to use it. I suspect I'll like it when I get it figured out! But tech-heads also like to know exactly how it all works. Which is why we're all here.
- Carl

 

[Anonymous]

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