Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

xltRadio 螢幕截圖

iPad

iPhone

About xltRadio

xltRadio is a calculator for RF engineer.
This app. let you quickly compute Free-space path loss, Fresnel radius, Received Signal Strength (RSS), Thermal noise and CNR.

You can change units for distance, power and bandwidth by tapping them.

Tap the map button at main view then map will appear. Tap and scroll the map to locate the transmission point to the center of the map. Then tap "PinA(PinB)" button at the toolbar to drop a Red(Purple) Pin which represents the transmission(the reception point).

This app calculates the distance between the red pin and the purple pin, and overlays 'fresnel zone' on the map.

Tap the 'Prof' button at map view then profile view will appear. Please set height of antenna to h1 and h2. This profile view shows center of beam with fresnel zone and grand plane.