RELIC HAWK

[Qiaozhi]

I'm afraid that this is true for some detectors. For instance, some of the Fisher's have this problem. They can be great for finding really deep nails!

Hi,
Qiaozhi!
Why you dont help here insteed making funny conclusions!?
I now that you love Nexus.I havent experiance from any kind with this bulgarian detector.But be shore RH is very deep indeed!

I have never claimed to love the Nexus, only that it is has impressive capabilities when it comes to depth. The trouble with the Nexus is the damn deep holes you have to dig. Personally I use either Garrett, Fisher, Tesoro, or home brewed detectors. Clearly you have not experienced this phenomenon with some Fisher detectors. (e.g. 1266 or CZ5.) Ivconic has also stated a similar situation with TGSL and Spectrum. With the Fisher detectors you can easily see this problem in an air test. Move a large iron nail near the coil (with DISC enabled) - there is no sound. Then gradually move it further away. You will eventually reach a point where the object is detected.
If the RH responds the same in an air test, then it is either a design fault, or the cloned circuit has mistakes. You can only be certain by testing an original RH.
What more help do you need?

[Max]

Hi,
Max.
As I look the pictures posted from Ivconics RH.I see 9 transistors and in ower parts list there are 4!!!Why?3 normal+6 smd.Hum..........Cutted schematic again.But it works?!

Some SMD are actually diodes: BAS16 ... was explained before in another post.

Though they use similar case to transistors they are simple silicon diodes.

Kind regards,
Max

[tiktak]

Hi,

Hi,
Max.
Ok.Thanks.
So only 3 transistors + one SMD!Other are diodes.But how we can put 1N4148?This have 3 pins?
I wanna make full copy according the real PCB.So thats why I am asking.
Max I will e-mail you some pictures soon.
I have hand draw it buts ok.No metter its a little gig.But still no traks.
I will draw what I can see and will leave the rest to you.

[tiktak]

Move a large iron nail near the coil (with DISC enabled) - there is no sound. Then gradually move it further away. You will eventually reach a point where the object is detected.
If the RH responds the same in an air test, then it is either a design fault, or the cloned circuit has mistakes. You can only be certain by testing an original RH.
What more help do you need?


I will do this.And we will see.

[Max]

Hi,
Max.
Ok.Thanks.
So only 3 transistors + one SMD!Other are diodes.But how we can put 1N4148?This have 3 pins?
I wanna make full copy according the real PCB.So thats why I am asking.
Max I will e-mail you some pictures soon.
I have hand draw it buts ok.No metter its a little gig.But still no traks.
I will draw what I can see and will leave the rest to you.

Hi,
not a problem ... you can recover smd diodes from e.g. old TVs or similar stuff... or just use e.g. 1N4148 soldering on top of pcb tracks, if needed.

In a way or another... you'll always get diodes there , that's what really matter.

Kind regards,
Max

[eclipse]

Hey guys I asked to buy the current RH from ebay, the seller refuse to ship it outside the UK so don't waste your time

[Fred]

I never understood why some guys refuse to ship outside their country
The buyer pays shipping and takes responsability anyway, and the seller is loosing (a lot of) money that way.So what´s the point? Looks pretty stupid to me.
Fred.

[Max]

I never understood why some guys refuse to ship outside their country
The buyer pays shipping and takes responsability anyway, and the seller is loosing (a lot of) money that way.So what´s the point? Looks pretty stupid to me.
Fred.

Hi,
it seems so... but it isn't actually. The reason is fairly obvious: if the buyer takes responsibility for anything could happen during transport it will like you said, just stupidity.

But there's more: for example on ebay the customer that doesn't receive the stuff could start a procedure against the seller and it's kind of controversial action where ebay people try to put in communication seller and buyer... also recording all messages sent both ways, for any legal use they could have in future.

Now... the problem is that both ebay and paypal (that's common payment method on ebay) give that chance to the buyer to recover money if stuff doesn't arrive in a particular time interval (30days for paypal if I remember well and 45 for ebay... or the like). When the boundaries become near and buyer hasn't received stuff he could start the action by paypal and/or ebay and try to recover money that way.

The problem is that if the seller has actually shipped stuff with all cares required but stuff didn't arrive at destination cause of e.g. postal services problems of destination country or ...I don't know... customs etc the seller cannot actually do nothing, expecially if the shipment was without tracking number and the like... to demonstrate the shipment date etc but also if a shipment document exist... there's possibility that e.g. custom declaration was wrong: suppose you're shipping an MD and write "gift" on the custom declaration... and the value of MD is 5000$ but you wrote 50$ just to avoid other troubles to the buyer (like custom duties), but also from item return back to the source (in some country you cannot ship items like MDs), they could have troubles related to WTO rules violations also (though it's extremely rare case... cause WTO don't care much of individuals and their small business) and apply of a procedure by the originating customs in relationship with the fake custom declaration, if any...

All this could compromise feedback of seller if he refuse to refund money back in such odd situations... this sure will happen in the case of MD, not for other few expensive stuff, where seller would prefer refund buyer even without seller fault!

These odd situations make many people be scared of shipping abroad, even with an extensive, protective set of rules enstablished.

So they go with domestic only! And refuse anything abroad... even money from abroad!

Kind regards,
Max

[Fred]

Hi Max,
Not to extend too much this OT , i think all the Paypal refund issue could be ruled out if the seller have a proof of sending, or a tracking nº....
and this problem could happen in the same country the same way,to be abroad or not changes litlle i think.This is where feedback is important.
BTW, Italy has a very poor reputation about post office,i feel sorry for Italian ebayers that have to pay more than others ....
regards,
Fred.

[eclipse]

BTW PayPal sux, no buyer protection or anykind of this sh**
I lost 420$ because of them, so guys just watchout from being screwed, don't expect any help or assistance from Paypal (Paypal and ebay are the same company!)

[Max]

Hi Max,
Not to extend too much this OT , i think all the Paypal refund issue could be ruled out if the seller have a proof of sending, or a tracking nº....
and this problem could happen in the same country the same way,to be abroad or not changes litlle i think.This is where feedback is important.
BTW, Italy has a very poor reputation about post office,i feel sorry for Italian ebayers that have to pay more than others ....
regards,
Fred.

Hi,
not just Italy has these troubles, also Nigeria and some middle east countries along with some e.g. central asian countries suffer from similar troubles...bad reputation about postal service there and not only...long delays at customs and other funny things... it's clear why some sellers prefer staying with domestic transactions... in these cases. But some are even more scared and wanna domestic always!

Sure I understand those "special" cases...

But I remember I was searching for a Tesoro 8'' donut-coil and I saw a true bargain price but seller was from Belgium and I cannot get the dang coil cause he wanna made domestic transaction only! absolutely crazy!
No way to convince him... nevermind.

Kind regards,
Max

[Max]

BTW PayPal sux, no buyer protection or anykind of this sh**
I lost 420$ because of them, so guys just watchout from being screwed, don't expect any help or assistance from Paypal (Paypal and ebay are the same company!)

yes... I agree... they aren't safe at all!

But now better stop the off-topic and focus again on RH.

Kind regards,
Max

[Max]

unsolved disc mess...

Hi,
I've made lot of tests these days... but found no solution.

The fact is that device responds in disc mode also to iron at far positions...and seems pretty few sensitive to attempts of correcting that behaviour.

I don't think original device could be sold that way... with such an explicit iron detection in disc mode: impossible.

I was thinking the mistake seems or could be related to response speed of disc channel enable/disable output signal... but so far... no results from changing caps etc, still problems there.

Also tryed to change op amps to see if slewrate modification could impact the effect or not in a positive way... but found very similar results with slew rates up to 50V/us... that's enough to me as test and seems lead to nothing useful there.

So it's still a mistery and I hope someone could post pictures or give informations to solve the puzzle according to original ML design.

I also started thinking that original coil could have something hidden (e.g. a small circuit + some additional coil) to prevent such ferrous signal to be amplified further... but I cannot be sure of this... I haven't RH or a RH coil... cannot do anything to confirm these suspects.

Kind regards,
Max

[strujas]

Somebody can scan a coil in some hospital.. , and to post photo here and we will know if something is hidden

[Max]

Somebody can scan a coil in some hospital.. , and to post photo here and we will know if something is hidden

Hi,
yes, it's a good idea... I think could be something there that make this puzzle so difficault...

for example in the sov coil picture provided by Nakky there's a ne5534 smt + an lm394 supermatch pair...

Sure detectors are different but... who really knows what's inside the big RH coil ? Is just wire... or there's more... like some phase network + amplifier and the like ?

Real puzzle!

Kind regards,
Max