Vascular Dementia: Introduction. Vascular dementia is the second most common type of dementia after Alzheimer's disease. Vascular dementia is a neurodegenerative disorder of the brain in which there is cognitive decline and deficiencies in mental performance that generally occur in steps.
Basics of RF drive test/testing. RF Drive test/testing is the procedure to evaluate performance of wireless modem/system while driving(or in motion). The wireless modem or system may include any wireless standards such as GSM,WCDMA,HSPA,UMTS,LTE,WIMAX,WLAN etc.
See also audio frequency (AF). Radio frequency (abbreviated RF, rf, orr.f.) is a term that refers to alternating current (AC) havingcharacteristics such that, if the current is input to an antenna, an electromagnetic (EM) field is generated suitable for wireless broadcastingand/or communications.