About Attenuator.app for iPhone From a given input voltage, Attenuator.app calculates based upon attenuation given in dBm, voltage and watts. Download FREE for iPod Touch, iPhone or iPad from Apple's iTunes! http://itunes.apple.com/ca/app/attenuator/id367216554 Available in the following languages English French Chinese (Traditional and Simplified) Japanese I use this for calculating expected voltages with variable attenuation from 50 to 300 W amps. For example, a 3 dB “pad” will give me approximately 25 W, or 100 V peak-to-peak from my 300 Mhz 50 W amp. A little too high for my o-scope! Some more screen shots are on the next pages. The flip side shows options, such as Voltage root-mean-square or Voltage peak-to-peak; Impedance of arbitrary resistance (50 Ohm is usual in my work, but radio uses 75 Ohms. Recent updates Can now calculate from any of the 6 input boxes. For example, enter the desired Vpp in the lower Vpp box, and find the starting Vpp. Thanks for downloading! Tim Burrow For support, please email: |
