I need to find the total value of E field (V/m) to make in relation with the exposure limit.

I live in Italy. ( 6 V/m is the limit for the law - cell towers phone ). We are speaking about HF spectran and hight frequency ( 800 Mhz - 2400 Mhz )

I collected many informations from my engineers collegues about the system used by specific instruments that are sensible only to E field and are recognized for this measurements.

I built a simple file excel to calculate the total E field.

I used the value recorded from Spectran in dBm , frequency by frequency (columns) , time by time (lines).

I made three different measurements , in Y , X , Z axis .

I calculate the average into the time of dBm , frequency by frequency ( separatly for X , Y , Z ).

With this medium value of dBm , I calculate the S value ( power density ), frequency by frequency , using the correct dBi ( antenna gain) of Omnilog.

I calculated the E field , frequency by frequency.

My collegues tell me that the system, used from the specific instruments that are sensible only to E field and are recognized for this measurements , is calculate the the square root of the sum of the quadratic value of E. This method is applied for the values frequency by frequency and the values in X ,Y ,Z .

I elevate the E value in quadratic , i make the sum for all frequency steps , I make the square root. This method separately for X recording , Y recording , Z recording.

I made the same calculation with the three results for X recording , Y recording , Z recording. In this way I find the total E field in a specific frequency range during a specific time of recording ( 6 minutes for the law )

I don't know if I'm able to explain the concept , but mathematically is very simple.

I'm asking 2 questions.

1° - Do you confirm that this way to calculation is correct ?

2° - Do you think is difficult to insert automatically into the software the calculation of E total field with this logic ?

I try to make the same question in other way.

if is difficult make square root of the sum of the quadratic value for E field we can work with S .

I know that for the S power density is necessary to sum the scalar value ( without square root of the sum of the quadratic value ).

My simple question :

Is possible, by software, obtain automatically the sum of the S power density ( calculate with the specific gain antenna in specific frequency ) in all range of frequency scanned in average for the period of recording ? ( To calculate E field is possible manually from S )