Welcome to SDOTECK Support Page

This page support you to use iPhone TOOLS by SUDOTECK .

Sep 2, 2010

ATT calc for iOS

SUDOTECK released application ATT Calc for iOS.
This application has four calculation functions.

1) dBm to W calculator .
2) ATT value in dBm to each Resistors of circuit .
3) Resistors of circuit to ATT value .
4) Resistance connected parallel .

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

DETAILS of functions

1) dBm/W 
    Set Numeric Wheel to power value in dBm ,
    So power  value in W will calculate above .
   Minus dBm value  is possible from 0.01µW ,
   using [+/-] Wheel.

2) dB-R
  Choose ATT tpe [Pi] or [T] ,
   schematics will change Pi type or
    T type .
  Select ATT value with right Wheel .
  Each R Value will calculate above .

3) R -dB
R -dB
Choose ATT tpe [Pi] or [T] ,
   schematics will change Pi type or
   T type .
  Select R1 and R2  value with 
  next 2 Wheels .
  ATT Value will calculate above ,
  and calculated total impedance in Ohm .
 Note : 

4) R1//R2


  Select R1 and R2  value with 
  2 Wheels .
  Parallel Value will calculate above ,
  Note: info Button will show version and
  can go to Support URL .


  1. If any questions ,Please comment this .

  2. Version 1.10 Now Release !
    W to dBm function Add .