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 3. GQ EMF EF Meter RF Spectrum Power Analyzer
 GQ EMF390 Side mini jack?

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T O P I C    R E V I E W
5GDeath Posted - 01/17/2019 : 14:16:52
Hello, Just purchased a EMF390 model. I have a question for the small mini jack hole above the USB port, what is this used for? Is it for head Phones or something else?

Thanks
5   L A T E S T    R E P L I E S    (Newest First)
EmfDev Posted - 01/18/2019 : 16:06:42
You are missing one number from 2018103, or is it 20181103? can you please recheck? thanks!

Edit. Your device's jack is for AM spectrum analyzer antenna.
5GDeath Posted - 01/18/2019 : 15:49:40
ok, the circuit board says EMF3 C3.5 2018103
EmfDev Posted - 01/18/2019 : 10:19:26
This jack's info isn't included in the manual. It's just there for extra features.
It used to be for AM antenna but the latest hardware has it changed for earphones.
5GDeath Posted - 01/18/2019 : 07:26:06
Ok, When I get in front of my unit I'll supply that information.

Based on (what hardware version is) what does this lead to? Different functions for this mini jack port?
EmfDev Posted - 01/17/2019 : 16:02:47
Can I ask for your hardware version? Please open the battery door and you can see the hardware model + version on the PCB.
Thanks.

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