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 3. GQ EMF EF Meter RF Spectrum Power Analyzer
 EMF 390 Version 2 has Different Frequency Coverage
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Bill D.

USA
44 Posts

Posted - 07/04/2020 :  12:34:36  Show Profile  Reply with Quote
The ver 2 manual of the 390 shows a major change-up for the frequency bands of the Spectrum Analyzer. All the kHz bands have been dropped and the unit does not analyze anything under 50 MHz.

Ver 2: Frequency band 1: 50 MHz -65MHz (FM Radio)
Ver 1: Frequency band 1: 150KHz 534KHz
Etc. also for other bands

Does this represent a hardware change in the 390?
Is it possible to upgrade the firmware without losing these lower bands?
Reply #1

EmfDev

1454 Posts

Posted - 07/06/2020 :  09:27:25  Show Profile  Reply with Quote
Yes, the RF spectrum has changed from V1 to V2. They have different firmware versions but has the same features.
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Reply #2

Bill D.

USA
44 Posts

Posted - 07/06/2020 :  09:45:40  Show Profile  Reply with Quote
That's interesting. So v2 is not using the full potential of the hardware in terms of frequency coverage.
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Reply #3

EmfDev

1454 Posts

Posted - 07/06/2020 :  10:09:45  Show Profile  Reply with Quote
In the spectrum yes, it covers less frequency.
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Reply #4

tinzi

USA
3 Posts

Posted - 07/07/2020 :  13:15:36  Show Profile  Reply with Quote
This sounds counter intuitive to me (I'm new to this and curious), but i'm sure it involves a lot of technical considerations to come to this design update, can you simply explain the pros and cons of this design? Thank you.
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Reply #5

EmfDev

1454 Posts

Posted - 07/08/2020 :  09:43:46  Show Profile  Reply with Quote
The reason why is because of the older spectrum component is not available anymore.
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