Vallon VMH3CS Mine Detector

[BC547]

When you follow this video: pay extremely good attention to the polarity of the battery tube ! (no idea how he/she distinguishes between + and - in the video)

I also have my doubts about a polarization protection diode in parallel with the battery, instead of a diode in series. Of course there is the 0.6V drop, but the detector works fine with 3.9V instead of 4.5V.
Especially for a military type of detector, I would assume it is more robust to any abuse than any other device ?

[Little Tinker]

Hi all.
does anyone have the firmware to upgrade so I can get beach mode and loose the beep?
thanks all
T

[hamam]

Well I have made an appointment with Vallon and paid for the firmware upgrade, I will arrive at their reception in Eningen the morning of Tuesday 10th July.

I 'll try and obtain as much info about the cable/firmware as possible, and be cheeky and ask for a tour of the facility, if you don't ask you don't get!

If anyone in the UK wants anything picking up PM me.

I'm trying to understand if the data cable is something more than just D-SUB to the MIL-spec connector.
Rocketdemon did you find out if there's some smarts in the cable?