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 3. GQ EMF EF Meter RF Spectrum Power Analyzer
 Sensor location EMF-380
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n8xyn

USA
66 Posts

Posted - 05/03/2018 :  18:33:47  Show Profile  Reply with Quote
Exactly where are the sensors located in the EMF-380 so I know the best way to hold the unit for the best accuracy?

Jim Whitaker
Reply #1

ZLM

1261 Posts

Posted - 05/05/2018 :  09:43:27  Show Profile  Reply with Quote
EMF-360,EMF-380 sensor location:

187026 bytes
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Reply #2

n8xyn

USA
66 Posts

Posted - 05/05/2018 :  11:43:18  Show Profile  Reply with Quote
Thank you very much :-)

Jim Whitaker
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Reply #3

robeyw

USA
12 Posts

Posted - 10/06/2018 :  01:23:05  Show Profile  Reply with Quote
Please describe the RF sensor. I assume that at low and mid frequencies it only picks up the electric field component normal to the face of the instrument and judging by the size I think it could be true for the highest frequency as well. Is this sensor used for all the ranges of the spectrum analyzer?
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Reply #4

EmfDev

2132 Posts

Posted - 10/09/2018 :  09:00:31  Show Profile  Reply with Quote
The EF should pick up with same direction as the X, Y, and Z. However Y direction is preferable.
There are different sensors for the spectrum analyzer.
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Reply #5

igel

Russia
46 Posts

Posted - 04/06/2020 :  10:48:20  Show Profile  Reply with Quote
quote:
Originally posted by EmfDev

There are different sensors for the spectrum analyzer.



Image Insert:

70917 bytes

I am electronic engineer since 1988. Begin to learn EMI fields around us at february 2019 when in our and other villages mounted cell towers. Later I discovered that they emits more than cell data- mind and health control signals known as V2K (Voice TO sKull)
Look my measurements and records on my channel https://www.youtube.com/playlist?list=PL9rKv9lMUZyAV5ilI9rnF7cV5_LNYOFUL
And explanations on this forum https://gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=9003
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Reply #6

ellie

USA
7 Posts

Posted - 05/21/2021 :  19:21:27  Show Profile  Reply with Quote
Regarding orientation, can someone please better explain the meaning of the red squares showing X Y Z, I am a bit confused.

If I am specifically looking for EF, it says I would want to use the Y direction. What position should I hold the meter in, and with what side/edge should face the item I am checking?

Edited by - ellie on 05/21/2021 19:22:15
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Reply #7

EmfDev

2132 Posts

Posted - 05/24/2021 :  13:19:45  Show Profile  Reply with Quote
Hi ellie, the X, Y, and Z sensors are for EMF and they are cylindrical in shape. The X points toward/away from the buttons/screen. Y points sideways, and Z points up/down. The EF sensor is rectangular in shape and is flat and the orientation is also sideways but is perpendicular to direction of screen).
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Reply #8

Electro

Canada
10 Posts

Posted - 12/20/2021 :  08:43:39  Show Profile  Reply with Quote
@EmfDev

Hello ! I drew something related to what you said, to make sure I really understand well. In the manual of EMF-390 revision 1.90 page 7 it's written:

Hold and position the meter
To get as accurate reading as possible, always point the
meter front (sensors) side to the source.

(Y direction is preferable)

QUESTION 1: The front sensor side in the manual, is it the back, the top of the face from my own images?
QUESTION 2: Can you validate that my drawing is right, especially the directions of X,Y,Z?
QUESTION 3: On any given situation, should I hold the meter in a laying position like Image C or in an upright position like A-B ?

Upright position = The top facing the sky
Laying position = The top facing a person in front of me.




Thanks.

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Reply #9

priotok

Russia
5 Posts

Posted - 02/08/2022 :  13:30:08  Show Profile  Reply with Quote
quote:
Originally posted by n8xyn

Exactly where are the sensors located in the EMF-380 so I know the best way to hold the unit for the best accuracy?



Band Antennas 76-108MHz, 2.4-2.5GHz, 50-76MHz/300-928MHz

priotok
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Reply #10

priotok

Russia
5 Posts

Posted - 02/08/2022 :  13:43:19  Show Profile  Reply with Quote
quote:
Originally posted by n8xyn

Exactly where are the sensors located in the EMF-380 so I know the best way to hold the unit for the best accuracy?


All antennas are oriented on the rear side of the device. Great location accuracy is not important.
Broadband antenna up to 10 GHz and magnetic field antennas


priotok
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