Vallon VMH3CS Mine Detector

[Riss]

I tested him ( Vallon VMN3CS ) briefly , on average soil .On ,, mineral “ - no problem -passed the procedure ,,ground reject ‘’.But in mode ,, normal’’ reacts very strongly to the soil . Of this mode gives signs , that he will register a pot with coins at 60 centimeters deep in the ground . On the mineral mode has no response on of the same pot . The test was with 15 x30 cm original , standart coil . Aluminum pan- diameter about 30 cm - reaction of about 50 cm in the air . Is there any new software that would allow ground rejection procedure on ,, normal ‘’ ? And allow registration of the above-mentioned pot ?

[tifred]

hello
I finished my changes.
I have to sell parts here.

[Altair]

Someone sell Vallon backpack?

[lytle78]

You might try the place in Poland that sells the surplus units. They have broken ones for $100 with $50 shipping to the US.

[Guzzi]

What is the adress of the place?

regards

Leendert

[chevesne]

http://tdm-electronics.com/

On Eb..https://www.ebay.com/str/tdm-electro...p2047675.l2563

[Guzzi]

Thanks, but not much in the store.

[Altair]

You might try the place in Poland that sells the surplus units. They have broken ones for $100 with $50 shipping to the US.

Thanks lytle78 and others for replies.

[jarrett]

Hi Jarrett,
Sorry about the delay in answering, and welcome to this thread. Firstly have a look at pages 465, 672, 707, 769, where you will find some information about audio mods for the Vallon. If you want to run standard low impedance headphones, the transformer mentioned is available on eBay. Any further questions, please ask on this forum thread, or send me a PM.

Eric.

Have fitted a pair of passive piezo's(no circuit inside ac feed) wired in parallel and they work ok after reading previous posts on the subject, one question though could this do any damage to the detector board as i would hate to mess it up for the sake of a set of headphones, has anyone dismantled the original earpiece and acertained what type of piezo it uses.

[brinbrin]

Hello,

Does anyone know the purpose of the two upper straps and the two half zipper on the Vallon VMH3CS backpack ? Are there additional pocket for the backpack ?

Best regards,

Brinbrin

[lytle78]

I asked Vallon USA rep about this. His thought is that it is a specific feature ordered by the UK MOD - probably in order to zip it together with other parts of their standard soldier load carrying system.

[brinbrin]

Thanks for the answer. I'll search in this direction. That'd be confy to have an additional pocket (pinpointer, headphones, etc.)

[jarrett]

I asked Vallon USA rep about this. His thought is that it is a specific feature ordered by the UK MOD - probably in order to zip it together with other parts of their standard soldier load carrying system.

Your rep is correct, they use the same thing on radio backpacks /bergens.

[jarrett]

Something like this.......
https://www.ebay.co.uk/itm/DPM-BERGE...PoCf:rk:2:pf:0

[lytle78]

The nicer of the two Vallons I got is on its way back to me after upgrading at the US distributor to the latest software version. No charge except for my shipping back and forth (about $40 total on FedEx).