I check each coin with the ctx the ctx id was spot on there were 3 coins that the ctx ID as iron could not get a sound on them but target trace was showing them anywhere from 35 to 41 with iron bouncing on the right side of the screen also that 47 Roosevelt was at 4 inches deep ctx did not make a squeak but target trace showed it as a 12.40 with iron bouncing on the right side.
I ran in park one 5 tone factory settings changed iron bias to 2 I set my tones at 1 for iron 0 for audio -9 to 10 11 to 13 tone at 25 audio maxed 14 to 18 audio 0 1 for tone 19 to 40 tone at 25 audio maxed
This sure made it run quite except for all the short pops from stuff trying to sneak in at the tone break but it was easier to hear the high kind of nice to run in all metal with nothing disc out but what you don't want to hear .
Now signals that gave me good #s say 21 to 25 if they spit or pop they were iron if I got a coin signal smooth longer signal it was a coin or a non-ferrous item things that stuttered or gave 3 or 4 quick chirps were also iron as long as the #s were in the range and it was a smooth signal it was non-ferrous.
Using the 800 and the ctx at the same time the ctx is so much refined compared to the nox which is how should I say it raw but it did light up 3 targets audio wise that the ctx did not I can see the nox has a learning curve . I did get 3 nickels 1940d being the oldest . sube
on the gold half dollar . sube