F19 and GB pro sensitivity

[Grumpie]

Just curious has anyone with either one of these detectors try to see if there machine picks up a #9 birdshot. And if so what was the max distance

 

[dfmike]

Is that 2.0mm in diameter BB type ? Wish I had one to test. Judging by the tiny stuff I picked up this summer at the beach with the smaller coils, I would say the F19 can pick it up but can't be sure. That's small indeed.

 

[Grumpie]

Yes sir 2.01mm

 

[Grumpie]

Try a #8 if you can find one

 

[dfmike]

I had a small piece of iron that was sent to me with a mini weight scale for calibration. It's about 2.5mm but almost flat. On the F19, it barely registers in zero disc mode and sensitivity cranked way up. It's a broken signal that comes and goes. In all metal mode with sensitivity only half way, it picks it up no problem with a good but somewhat faint signal in the headphones. This is in the air only. I can't test it in the ground. It's frozen stiff with 24 inches of snow on top.

Because you posted a similar question in the X-Terra forum, I can say that my X-Terra 705 with the HF football coil will sometimes beep once every 10 passes in all metal mode. It's virtually invisible with that detector.

 

[Minero]

dfmike, so from having both detectors, would you say that the F19 is more sensitive than the x-terra?

 

[dfmike]

I've acquired my X-Terra only recently. In air tests the F19 is more sensitive to the very small low conductors with comparably sized coils and the X-Terra equipped with an HF coil. I haven't tried the X-Terra on super small targets in prospecting mode yet. That could change everything.

I can't make a proper judgment on the X-Terra yet as I have very limited experience on it in the field. I still can't take it out. It's snowing right now again !