Minelab Go Find Frequency

[Mark Gillespie]

Not to pleased with the video quality. Hoping to try a different camera next time. Oh and by the way, after several weeks of testing and experimentation I have some surprising information about both, the XP Deus 2 and the Minelab Manticore. Findings may ruffle a few feathers, about what frequencies they actually transmit.  However, it doesn't change the fact they are great detectors. 

 

 

[Chase Goldman]

2 hours ago, Mark Gillespie said:

Not to pleased with the video quality. Hoping to try a different camera next time. Oh and by the way, after several weeks of testing and experimentation I have some surprising information about both, the XP Deus 2 and the Minelab Manticore. Findings may ruffle a few feathers, about what frequencies they actually transmit.  However, it doesn't change the fact they are great detectors. 

And is also less than half the story.  SMF transmit frequency knowlege is all fine and good, I suppose, but there seems to be way too much emphasis on it in detector forum discussions.  
 

When I see O scope traces and Fast Fourier decomposition it generally just reinforces to me that the designers are “in the ballpark” for whatever search objective is associated with that mode (e.g., I would expect lower frequencies to dominate “deep” or “high conductive” or beach modes and higher frequencies would dominate gold or relic modes) and I rarely get surprised and certainly not “ruffled”.  

The reason being doesn’t tell me anything about how target signals are processed and how SMF information is used by the detector for other purposes such as ground compensation or iron bias filtering.  
 

To that point, the “number of frequencies” simultaneously transmitted ie even less interesting to me because you only really need to transmit two frequencies to be effective if you have a robust target signal processing scheme.  Yet even with Vortex I keep hearing the meaningless question of “how many frequencies does it transmit?” demonstrating a lack of understanding of what really matters as far as SMF design is concerned- target signal processing.  And since all SMF detector manufacturers jealously guard those trade secrets, we are not going to learn much from O scope traces.  
 

What matters is the collective objective evidence of their general performance in the field and the general satisfaction or dissatisfaction of those who use specific SMF models.  That’s why certain SMF detectors have demonstrated staying power and popularity amongst detectorists who aren’t swayed by hype, heavily edited you tube videos, manufacturer marketing hype, and out of context o scope traces.  

But still curious nonetheless.  

[Mark Gillespie]

You're correct, there is so much more to a detector, than just transmission frequencies.  However, without a starting point (transmission frequency) software analysis would be useless.  I just wanted to state how interesting it is to me and wanted to share the info.  Now on the other hand I had one of the head engineers for a detector mfg. state that both Minelab and XP have some of the most intriguing transmit frequency schemes they have seen.  Someone was really thinking outside the box.  Now for me, I like to know a little more about the transmit side just to give me an idea what to expect or hope to expect.  High frequency more weighted to low conductors etc.  

To me, I love seeing and comparing the signal strength, not just voltage but mainly the current transmitted.  I just love electronics.  It keeps me curious not only about detectors but other electronic devices too.

You're right with the "hype" advertised by many of the manufacturers today.  

[Chase Goldman]

Believe me, as an electrical engineer myself and tech gadget addict, I'm academically curious about it too.  I just thought it was a convenient opportunity to address those people who would actually get their "feathers ruffled" by such findings.  Those folks need to get some perspective.

[phrunt]

The Go-Find uses VFlex, it works surprisingly well in the wet sand on a beach for a single frequency detector and is very resistant to EMI,   Their frequency selection seems about in a sweet spot for general use detecting for this sort of detector.