Wilbur,
It's a very fun detector, one of my favorites; lightweight, easy to learn. And yes the GB is applied in both All Metal & Disc. It is a terrific machine in iron as there is a continuous readout of every target you pass over. So even if you have iron disc-ed out and you get a little high tone iron chirp or ID, it is easy to see it's caused by a piece of iron by looking at the display.
Here's a post I revived from Sept 24, 2005 on what is now the F75 Classroom forum. As it goes back so far in the forum archive, the photos had been removed, but since I keep copies of all photos I have re-inserted them here with the old text.
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"After digging so much sand yesterday that I thought my name was Catepillar, I was too tired to get back in the water so, I decided to take the Excel to a beach where I have had good finds in the past, but haven't been to this year. There were places at this beach thick with iron that made the CZ20 not a lot of fun, and the Tejon even less so.
I expected to find a fair amount of silver jewelry, and if really lucky maybe a gold ring. The Excel proved me wrong, you can't see the amount of iron she ignored, but trust me she did!
The coins;
[attachment 75134 coin.gif]
The silver;
[attachment 75138 silver.jpg]
The yellow stuff, three 14K's, two w/ stones, small one broken band;
[attachment 75136 goldies.jpg]
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I couldn't figure out where the whole nut photo went in the original post, so here it is.
[attachment 75141 nut.jpg]
Just some points about what was found, it was found in heavy iron/nail conditions. There are several toe rings & open loop earrings, not easy targets. And the small girl's gold ring to the right had a broken band that makes it a very tough target.
I hope you can see that the Excel can really hold it's own as compared to many detectors.
HH
BarnacleBill