Hi All,
I've been using a Goldscan 5 for awhile now, mostly on nail-riddled, black-sand beaches where it's difficult to run even my Excalibur. I would typically run in GB/disc mode with the GB set at 3:00 and dig all high tones. With these settings I rarely dig any iron/nails and I bypass the clad. Still dig pull-tabs and also some hardened steel stuff like knife blades and some screwcaps...oh and the gold of course !
I read on another forum a post by Reg Sniff about a mod that would allow either the high or low tones to be switched off and how that might make it useful for coin-shooting, I emailed him and asked about the mod. Reg was very helpful and after sending him a pic of the audio board in my GS5 he gave me step by step instructions on how to do the mod. Well I did it and it works!! Thanks again Reg for you help.
First, in doing some bench testing with the built in probe, I found that setting the switch for high conductors (low tone only) it would blank on a 3" rusted iron bolt with the GB at about 11:00. Coins gave a nice low tone here. (Pulse delay set at minimum). Then, I finally got some time to test it out in a park this weekend. With either the stock 11" mono loop or a Minelab 8" mono loop, I found that to ignore the same bolt, the GB had to be set fully counter-clockwise (7:00 position). It still gave a nice low tone on coins at this position, but there was a depth loss of ~2" compared to having the GB at 11:00.
Reg and Eric, where do you find you need to set the GB on the GS5 to ignore iron in the single tone mode?
Given the amount of iron trash at this site, I decided to use the 8" mono loop. Settings were Pulse Delay @ min, TX freq @ mid position, Range @ ~3:00, GB @ 7:00, switch set for low tones only. I was amazed at how quiet it ran. I only had an hour to hunt, but in that hour I pulled up one silver dime (a Merc), two wheaties, several clad coins, a small copper rivet, a bit of copper wire, but no iron trash! Not too bad given that I haven't dug an old coin from this site in the last few times I've hunted there with other detectors
Need to do some more playing with this single tone mode at different sites, but so far it's a nice feature. Will try it at the beach with the switch set for high tones (low conductors) so I don't have to listen to all the low tones from the nails.
thanks again Reg for sharing this mod.
HH
Mike
I've been using a Goldscan 5 for awhile now, mostly on nail-riddled, black-sand beaches where it's difficult to run even my Excalibur. I would typically run in GB/disc mode with the GB set at 3:00 and dig all high tones. With these settings I rarely dig any iron/nails and I bypass the clad. Still dig pull-tabs and also some hardened steel stuff like knife blades and some screwcaps...oh and the gold of course !
I read on another forum a post by Reg Sniff about a mod that would allow either the high or low tones to be switched off and how that might make it useful for coin-shooting, I emailed him and asked about the mod. Reg was very helpful and after sending him a pic of the audio board in my GS5 he gave me step by step instructions on how to do the mod. Well I did it and it works!! Thanks again Reg for you help.
First, in doing some bench testing with the built in probe, I found that setting the switch for high conductors (low tone only) it would blank on a 3" rusted iron bolt with the GB at about 11:00. Coins gave a nice low tone here. (Pulse delay set at minimum). Then, I finally got some time to test it out in a park this weekend. With either the stock 11" mono loop or a Minelab 8" mono loop, I found that to ignore the same bolt, the GB had to be set fully counter-clockwise (7:00 position). It still gave a nice low tone on coins at this position, but there was a depth loss of ~2" compared to having the GB at 11:00.
Reg and Eric, where do you find you need to set the GB on the GS5 to ignore iron in the single tone mode?
Given the amount of iron trash at this site, I decided to use the 8" mono loop. Settings were Pulse Delay @ min, TX freq @ mid position, Range @ ~3:00, GB @ 7:00, switch set for low tones only. I was amazed at how quiet it ran. I only had an hour to hunt, but in that hour I pulled up one silver dime (a Merc), two wheaties, several clad coins, a small copper rivet, a bit of copper wire, but no iron trash! Not too bad given that I haven't dug an old coin from this site in the last few times I've hunted there with other detectors
Need to do some more playing with this single tone mode at different sites, but so far it's a nice feature. Will try it at the beach with the switch set for high tones (low conductors) so I don't have to listen to all the low tones from the nails.
thanks again Reg for sharing this mod.
HH
Mike