I have had my F-75 for a while and like most thought something was wrong with it as it chattered a lot, got a lot of rusty bottle caps and pieces of old rusty tin cans. I tried different setting and some do help a little while others don't. The real problem I feel is trying to use it like my Minelab Sovereign and the Explorers which I am used to. The F-75 has impressed me at time and made me mad at times with all the trash I would dig when looking for coins. I like my multi tones for IDing and tried using it this way, but read so many say run the 2 tones and I tried it a little and didn like it, so back to the multi tones I went. I should have kept using it and got to understand it more as I feel those that post this do know what they are talking about. Even with the multi tones I would be surprised at time with some of the coins I found in place I and others had worked hard in for over 30 years. I now see where using the multi tones may have made me dig more trash as these signals were more iffy and i just had to dig them to see what they were.
Now I got the small coil and took it to some of the real trashy sites and even some that were not so trashy, but close areas to work. I went with the 2 tones and stayed with them and when i get a good tone and it seem to be a more solid tone I look at the ID to ID the target. I find that it works better for me as I can tell the ones that are the better signals and also the depth of the target with these tones. A weaker tones that is repeatable gets my attention right now while a louder signal will have to lock on more on the ID. I also see the ID will read higher if the target is a deeper one plus I don't get as many rusty bottle caps either as I swing the coil a little faster or slower and it will sound different while a good target will sound more solid using the 2 tones.
The F-75 is not a perfect detector as none are and it is as good as the operator is and how they understand it which I feel I am getting better with, but no expert yet. I do feel more comfortable now with the smaller coil and the 2 tones instead of the multi tones.
Now last week trying out the new small coil I got a few relic running it this way plus a wheat penny that had 2 nails with it, so my confidence got much better. Today i went to a old park we have got some older coins out of it with the Explorers and the Sovereigns and went to a area by the road where I know is a little more trashy and started picking up new pennies and a nickle right away. I worked around this area and seen if it show 60 or more and a louder signal I would dig, if a 57-59 and loud it was a pull tab, if 31-33 it was a pull tab, but 29-30 it was a nickle if louder signal. These were fro, 1-4 inches deep. Got a weak signal that seem to be ruining 58-59 and pretty solid and dug down a good 9 inches to get a 1918 Buffalo nickle and why I say when it is deeper the ID seem to read higher as I have seen before on the F-75. I found a few rusty bottle caps too, but no like I normaly do and seen where a coin on top of the ground can give a large target alert too. I see when I get what sounds like a good tone I swing the coil faster and slower if a louder signal and can tell how solid the signal is before I look at the ID, now a weaker signal I use a smaller swing of the coil and look at the ID and see how much the numbers bounce around. The Buffalo I got today only bounce a few numbers unless I was swinging it further past this signal, then it could bounce more.
The F-75 has been getting a bad rap I feel as many of these problem are more operator and setting errors than a defective detector which i am sure some are too. I have tired 3 different F-75 as I too thought mine may be bad, but all 3 worked the same and reading these forums and reading some of the tips on this detector has helped a lot. Also trying some of the advice from the Pros also helped me alot instead of thinking they don't know what they are talking about as I tired that before, but never gave it much time.
Need more time with it to get good and have as much confidence as I do with my Sovereign or my Explorer, but will say I sure enjoy the weight of the F-75 and hope Sun Ray makes a in line probe for it, been using a Uniprobe which is good, but the Sun Ray will disc and help on the good targets.
Rick
Now I got the small coil and took it to some of the real trashy sites and even some that were not so trashy, but close areas to work. I went with the 2 tones and stayed with them and when i get a good tone and it seem to be a more solid tone I look at the ID to ID the target. I find that it works better for me as I can tell the ones that are the better signals and also the depth of the target with these tones. A weaker tones that is repeatable gets my attention right now while a louder signal will have to lock on more on the ID. I also see the ID will read higher if the target is a deeper one plus I don't get as many rusty bottle caps either as I swing the coil a little faster or slower and it will sound different while a good target will sound more solid using the 2 tones.
The F-75 is not a perfect detector as none are and it is as good as the operator is and how they understand it which I feel I am getting better with, but no expert yet. I do feel more comfortable now with the smaller coil and the 2 tones instead of the multi tones.
Now last week trying out the new small coil I got a few relic running it this way plus a wheat penny that had 2 nails with it, so my confidence got much better. Today i went to a old park we have got some older coins out of it with the Explorers and the Sovereigns and went to a area by the road where I know is a little more trashy and started picking up new pennies and a nickle right away. I worked around this area and seen if it show 60 or more and a louder signal I would dig, if a 57-59 and loud it was a pull tab, if 31-33 it was a pull tab, but 29-30 it was a nickle if louder signal. These were fro, 1-4 inches deep. Got a weak signal that seem to be ruining 58-59 and pretty solid and dug down a good 9 inches to get a 1918 Buffalo nickle and why I say when it is deeper the ID seem to read higher as I have seen before on the F-75. I found a few rusty bottle caps too, but no like I normaly do and seen where a coin on top of the ground can give a large target alert too. I see when I get what sounds like a good tone I swing the coil faster and slower if a louder signal and can tell how solid the signal is before I look at the ID, now a weaker signal I use a smaller swing of the coil and look at the ID and see how much the numbers bounce around. The Buffalo I got today only bounce a few numbers unless I was swinging it further past this signal, then it could bounce more.
The F-75 has been getting a bad rap I feel as many of these problem are more operator and setting errors than a defective detector which i am sure some are too. I have tired 3 different F-75 as I too thought mine may be bad, but all 3 worked the same and reading these forums and reading some of the tips on this detector has helped a lot. Also trying some of the advice from the Pros also helped me alot instead of thinking they don't know what they are talking about as I tired that before, but never gave it much time.
Need more time with it to get good and have as much confidence as I do with my Sovereign or my Explorer, but will say I sure enjoy the weight of the F-75 and hope Sun Ray makes a in line probe for it, been using a Uniprobe which is good, but the Sun Ray will disc and help on the good targets.
Rick
