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Topic 

Mugless
Australia
11 Posts 
Posted  06/20/2020 : 22:02:34

Hi Everyone,
Please could someone explain the units in Table mode?
Here, 50 dBm corresponds to 10 nW. As far as I can work out from the meter, 0 dBm = 100,000 mW/m2, 50 dBm = 1.0 mW/m2.
Therefore 50 dBm corresponds to 1.0 mW/m2, corresponds to 10 nW, corresponds to 0.01 mW.
Therefore there seems to be an assumption builtin to the Power in Table Mode which is that of an area of 0.01 m2.
Is this correct?
Thank you,
Douglas


Reply #1
EmfDev
1925 Posts 
Posted  06/22/2020 : 10:00:01

That is correct, the power corresponding to 50 dBm is 10nW and is equal to 0.00001 mW and not 0.01 mW. and 0.00001mW when converted to density becomes 1mW/m2 or 100nW/cm2. 


Reply #2
Mugless
Australia
11 Posts 
Posted  06/22/2020 : 16:14:32

Sorry, I realized that I muddled mW and microW. I should have said: Therefore 50 dBm corresponds to 1.0 mW/m2, corresponds to 10 nW, corresponds to 0.01 microW, corresponds to 0.00001 mW
Therefore there seems to be an assumption builtin to the Power in Table Mode which is that of an area of 0.00001 m2 = 0.1 cm2.
Your answer, though, is consistent and makes sense. i understand that this is related to another thread, in which you mention "gain" and other parameters.
Thanks and regards, Doug 



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