Is Garrett About To Release A New Gold Prospecting Pi?

[RoobyRoobyRoo]

1 minute ago, jasong said:

I could hear them coming on my GPZ before I heard/felt them in the air...stopped to fiddle with my machine and then bam, Blackhawks. 

BINGO!! We both said it at the same time.. LOL

[jasong]

I'm more inclined to think it's mechanical noise. I can hear my ATV for instance and it has no transponders or anything. I know another building large coils here has some relevant experience too but I won't comment for them as I'm unsure what is public or not. 

Engines actually produce a phenominal amount of electrical noise, different engines probably produce different frequencies and harmonics.

[cudamark]

So far, it's WiFi signals that give me the most fits.

[RoobyRoobyRoo]

1 hour ago, cudamark said:

So far, it's WiFi signals that give me the most fits.

You detect that close to people's homes and businesses that 2.4 and 5Ghz Wi-Fi signals are your main concern, what are you, in their back yard like in the movie "The Nugget"? LOL

[phrunt]

One spot with my 4500 was next to a highway, well what we call a highway in NZ, a two lane road with a car about every 20 minutes 😛  I was detecting about 30 to 100 feet from the road above the road surface on a hillside.  It was funny as you knew the cars were coming before they were in sight as the detector let you know.

When cars were coming my GPX would go nutty before they got to me, after they passed it quietened down quickly.   Every car seemed to do it, I thought maybe their alternator.   I haven't had the 6000 there as it's got too many hot rocks to bother. 

 

[jasong]

10 minutes ago, phrunt said:

The reason I'm confident it's a PI is the coil size, looks to be 11", unlikely to sell a VLF prospecting machine with an 11" as stock.  Also their most powerful gold prospecting detector ever made (By Garrett) is unlikely to be a VLF when they have the ATX on their books. 

All good points. You are probably right, I just don't want to make to many assumptions since I learned from the Vanquish release. 

I'm still hoping we all get surprised and it's something new like this half sine machine.

[jasong]

7 minutes ago, phrunt said:

Every car seemed to do it, I thought maybe their alternator.

Yep, alternators generate noise. Also just sparks and combustion, they can both be essentially wide-band EMI impulses generating huge swaths of interference. Lightning is basically just a massive version of a spark plug, and we definitely hear lightning.

[RoobyRoobyRoo]

23 minutes ago, jasong said:

Yep, alternators generate noise. Also just sparks and combustion, they can both be essentially wide-band EMI impulses generating huge swaths of interference. Lightning is basically just a massive version of a spark plug, and we definitely hear lightning.

Jason's spot on, it's why us amateur radio operators who work HF mobile have to bond our vehicles, literally taking wide braid cable and bonding the trunk to the fenders, hood to fenders, body to frame in 4 corners (some pics at link below). You'd be shocked how noisy a vehicle can be and not just from spark plugs or alternator whine, fuel pumps, AC fans, ECM's, injector pumps etc.

Sadly that only works on your own car, you can't stop every car that drives by the paddock and offer to bond their car.. LOL

https://stationproject.blog/2013/08/19/mobile-hf-installation-part-24-bonding-and-choking/

Get yourself one of these little beauties and walk around your house you'd be amazed.... especially wall warts... any switching power supply is terrible. The next time your detecting buddy insists on leaving his cell phone on so the wife can get a hold of him, show him the emissions... LOL

[GotAU?]

20 minutes ago, Jennifer said:

Jason's spot on, it's why us amateur radio operators who work HF mobile have to bond our vehicles, literally taking wide braid cable and bonding the trunk to the fenders, hood to fenders, body to frame in 4 corners (some pics at link below). You'd be shocked how noisy a vehicle can be and not just from spark plugs or alternator whine, fuel pumps, AC fans, ECM's, injector pumps etc.

Sadly that only works on your own car, you can't stop every car that drives by the paddock and offer to bond their car.. LOL

https://stationproject.blog/2013/08/19/mobile-hf-installation-part-24-bonding-and-choking/

Get yourself one of these little beauties and walk around your house you'd be amazed.... especially wall warts... any switching power supply is terrible. The next time your detecting buddy insists on leaving his cell phone on so the wife can get a hold of him, show him the emissions... LOL

My SDC was and now my 6k are all quiet with a cellphone on and even when calling with it- maybe a EMI difference between phone models?

[jasong]

Yeah different phones definitely affect detectors differently. I had an S20 and it was ok with the 6000. Broke the screen, upgraded to a smaller S22, this phone doesn't play as well with the 6000.

Oddly though, sometimes worse than others. It's another thing that leads me to believe the 6000 reaches a tipping point where it's noise algorithms get overwhelmed with too much input/stimulus, and it subsequently loses stability in a feedback loop where it's own corrections cause further instability. It's not really any 1 specific thing, but being exposed to a combination of additive things, including it's own self.