IDX-PRO+VDI

[greylourie]

Wow Golfnut ! You must be floating on cloud nine..

[Koala]

Well done nice finds Golfnut. Bet you were well chuffed.

Was that running in DISC mode or ALL Metal mode and were you using a concentric or DD

[6666]

Super finds Golfnut

[ossamaussama]

who can explain how it work?

[golfnut]

Cheers, it was a bit special. I pulled some iron, lead, bronze goods. Iron/lead/bronze slag from furnace activity. Pottery ranging from 40-80AD imported from southern spain - thru to pot made in central england 300-400AD. The site was in use for the complete roman invasion of the uk.


I was using a DD , a nel hunter. Running about 13kHz approx 10kHx Rx tank

I added a momentary action switch to my IDX so if I let go Im in all metal by default - when I get a hit I momentarilly flip the switch to interrogate. I get more - or miss less, this way.

Most of the coins were in the top 6 1/2" The brooches were about 7 1/2"

I may get one more session in up there this year but I did go over it well, and it is only about 300mx300m - I will need a killer creation for next year to pull the next installment and go back in time a little further.

The oldest datable coins were from about 323AD. Small roman from 250 to 300 are often fragmented and irreversibly corroded.


There is a plum bob, vine tie, large nail, small nails, triangular trade weights, lead pin head, pottery from Gaul, and maybe one piece of late iron age/celtic pot.

The coin with its own pic looks better in the flesh. It was minted in Trier which is in germany - these survive real well as they used their own special bronze alloy. Rather than simply tin and copper they used to add about 2% silver - this makes them look dark rather than bronze colour but they corrode much less.

The slender brooch is a cross over piece probably roman manufactured in the celtic style. In about 50AD.


S

[6666]

Thats amazing, do you get to keep any of your finds, or do you have to hand them in ?

[Davor]

I'm drooling

[golfnut]

No, most finds are the landowners and do not require to be handed in. You have the option to record the finds with the Portable Antiquites Scheme and each UK county has a finds liaison officer. They will look at your finds and know what is worth recording. They borrow them to research, and return them - with the data describing the find.



You normally arrange up front with the land owner what you want to do with the finds. I normally give the land owner everything with a breakdown of what they are and when they were made. If the land owner really does not want it, I will have it. Some land ownwers want duplicates, so you keep the first of a coin type for example.

Most land owners want you there to in order for them to make 50% of any items that are worth selling. e,g, a decent gold coin



Some are more into the history and the amazement - Im in this camp. Ive never felt the need to sell any of my finds.


The authorities have their requirements too and some decent stuff needs handing in and may go for sale to a museum - the purchase value is split 50/50 between the discoverer and the land owner. UK legal requirements are summarised here ..

http://finds.org.uk/treasure

http://finds.org.uk/documents/treasure_act.pdf

S

[Valters]

I have some question about loudspeaker. In my country i can`t find a speaker 0,5w 8ohm, but i find some types(frequency range) of 1w (o,5w nominal power) 8ohm. I hope it will be not a problem. Human hearing frequency is 20-20000Hz, and which freqeuncy range is better for this project?

[Davor]

If you are able to obtain a loudspeaker at 16 or 32 ohm even better. Speakers with reduced frequency range are generally more efficient. Detectors beep in a range between about 300 and 1000Hz so you can chose accordingly.

[6666]

Thanks for the explanation Golfnut, hopefully you will find some goodies on that site, a friend of mine recently moved from Australia to the UK and she now works for the Oxford University as an Archeologist.

[mohandes]

HI all
please put the complete & correct pcbs for this detector together here.ALL pcbs my means.
thanks.
please

[golfnut]

Oxford has an annex site called oxford archaeology east and it is actually to the west of cambridge city. I know a few people up there and have done a bit of detecting for them.

S

[ossamaussama]

hi every body
idx with CC coil is less depth in bad ground
27 cm in air will be 23 under ground

dose any one not that?

[mohandes]

any body.....