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This application has four calculation functions for RF Engeneer .

1) dBm to W and W to dBm calculator .

2) ATT value in dB to each Resistors of circuit .

3) Resistors of circuit to ATT value and Impedance.

4) Resistance connected parallel .

Picker Wheel Data setting interface is very simple for all functions .

DETAILS of functions

1) dBm/W

Set the power value in dBm using numeric Wheel ,

It can input below the decimal point using last wheel.

Power value in W will calculate above area .

The unit is changed by the value Ex: µW,mW,W,kW .

Minus dBm value is possible from 0.01µW , using [+/-] Wheel.

Using last wheel to set µW/mW/W/kW , you can calculate W to dBm .

The first wheel will change to numeric Data in while you set the unit to µw~kW .

This calculate is based on 0dBm = 1mW .

2) dB-R

Choose ATT type [π] or [T] ,

schematics will changeπ type orT type .

Select ATT value with right Wheel .

R1,R2,R3 values will calculate above area .

Resistor value is a calculated value ,not E24 numbers.

3) R -dB

Choose ATT tpe [π] or [T] ,

schematics will change π type or T type .

Select R1 and R2 value with 2 Wheels .

ATT Value will calculate above area,and calculated total impedance in Ohm .

The impedance must select nearest value with transmission lines impedance .

The value of resistor is selected from the E24 numbers.

4) R1//R2

Select R1 and R2 value with 2 Wheels .

Parallel Value will calculate above ,

Note: info Button will show current version , and you can go to Support URL .