Zed Compliance

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Zed Compliance

Post  G.B. on Tue Jan 10, 2017 10:16 pm

Just curious from the Zed Manual.

COMPLIANCE

THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES. OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS: (1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, (this is understandable)

AND (2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED, INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED OPERATION.(why must it be able to accept interference why can't they allow it to block out this intererence?)

Information to the User (FCC Part 15.105) NOTE: Class B Devices
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. (Is it only the Zed because of its technology that has to abide by these rules or is it every detector?)


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Re: Zed Compliance

Post  UNCLE BOB on Tue Jan 10, 2017 10:45 pm

Interesting.
So is this the reason why my gpx 5000 accepts EMI?
Even with the filters it has, sometimes it's not good enough.
Is there a way to get this modified to block these unwanted
Interference???

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Re: Zed Compliance

Post  kon61 on Wed Jan 11, 2017 12:03 am

These two FCC compliance rules alone, severely restrict both the detectors output transmit & receive power. They most likely apply to all or any electronic device made.
Poorly EMI insulated control-box/electronics/ or coil wire, is the reason why we get EMI coming through, but if the government has placed restrictions on EMI shielding of an electronic device, well, that' as far as one can go. In other words, "You cannot do what is likes" "Only they can do what is likes" Q24 Q35
Bob, there is something you can do, to better insulate external EMI coming through your detector (not sure to what effect), but only if you new what you were doing, with the appropriate type/grade of EMI shielding paint/tape or sheet. For maximum EMI shielding effect, EMI shielding, is best incorporated to an electronic device during its initial construction/manufacture. "Mechanic" Mick, would be more capable of answering something like that.

Cheers Kon. Q11



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Re: Zed Compliance

Post  UNCLE BOB on Wed Jan 11, 2017 12:35 am

Kon,
There's always something that can be done and that's why I have asked the question........ Getting the detector modified to handle (block) the unwanted external noises.

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Re: Zed Compliance

Post  Harb on Wed Jan 11, 2017 10:18 am

Ok....firstly the FCC is the American version of what we know here as the ACMA.......they are a regulatory body that looks after the frequency spectrum.

It must accept interference because they cannot guarantee the frequency it operates on will be noise free......so if you get interfeared with, its acceptable and you must accept that..............its not a licencable band where you pay a fee to have your own piece of the spectrum where you do not have to accept interfearence.....if you do, they will chase it up and stop the problem.

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Re: Zed Compliance

Post  MBZed on Wed Jan 11, 2017 9:44 pm

Yes Harb is right.
FCC is USA version
CE European version
C Tick, A Tick etc. is ACMA Australian version
I think the FCC statement of compliance has to be on all relevant products manufactured or sold into the USA whereas the Europeans only require the EC symbol and Australia the C Tick or whatever compliance level depending on product. It basically all means the same though and ACMA cover more devices than the FCC. Could even have more conditions so the FCC statement of compliance might be the minimum of what's imposed.
The FCC statement has been on at least the GPX, SDC and the GPZ I have owned.


Last edited by MBZed on Sat Jan 21, 2017 8:11 pm; edited 1 time in total

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Re: Zed Compliance

Post  G.B. on Wed Jan 11, 2017 10:04 pm

Thanks makes sense now

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Re: Zed Compliance

Post  gef50 on Fri Jan 13, 2017 10:40 pm

The front end of the PI and other types of detectors consists of a wide band ultra low noise design .. so that it can pick up the nano volt signals from the tinniest of targets ..
There is in our natural world the mother of all interference ..it being lightening ... and this being a wide band, random and indiscriminate source is not that easy to filter out.

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Re: Zed Compliance

Post  adrian ss on Sat Jan 21, 2017 7:43 pm

This is interesting.
http://www.made-in-china.com/showroom/keeloltd1/product-detailyKOEZHpUCtYi/China-Discounted-Price-Authentic-Gpz-7000-Gold-Nugget-Metal-Detector.html

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Re: Zed Compliance

Post  MBZed on Sat Jan 21, 2017 8:20 pm

adrian ss wrote:This is interesting.
http://www.made-in-china.com/showroom/keeloltd1/product-detailyKOEZHpUCtYi/China-Discounted-Price-Authentic-Gpz-7000-Gold-Nugget-Metal-Detector.html
That authentic Rolling Eyes one comes with the Chi - Tick Razz
Funnily enough China do have regulatory compliance standards in this area too CCC. Pity they didn't have a regulatory watchdog for abolishing the manufacturers of counterfeit products.

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Re: Zed Compliance

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