Abstract: Apparatus and methods for monitoring interference in radio communication systems are provided. In certain embodiments, an interference monitor system for a ground terminal detects for interference based on a sum of the power levels of orthogonal polarizations of detected interference, thereby allowing the total and average peak interference power levels to be obtained independent of interference polarization. Further, the interference can be divided into frequency bins over the received signal bandwidth(s), thereby facilitating measurement of interference spectral characteristics. Multiple interference monitors can be included to detect interference over the full angular range over which potential interference has access as well as to determine an angular direction of the interference.

Abstract: Apparatus and methods for monitoring interference in radio communication systems are provided. In certain embodiments, an interference monitor system for a ground terminal detects for interference based on a sum of the power levels of orthogonal polarizations of detected interference, thereby allowing the total and average peak interference power levels to be obtained independent of interference polarization. Further, the interference can be divided into frequency bins over the received signal bandwidth(s), thereby facilitating measurement of interference spectral characteristics. Multiple interference monitors can be included to detect interference over the full angular range over which potential interference has access as well as to determine an angular direction of the interference.

Abstract: An electronic device suitable to read textual materials thereon for disabled individuals includes a device having a size less than 12 inches by 12 inches, less than 1 inch thick, and includes a front surface with a display suitable for displaying at least one of text and images thereon. The device includes a turn button that when selected selects a page turning duration where a first page of an electronic book is presented on the display and based upon the page turning duration a subsequent page of the electronic book is presented on the display.