This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Smart Antennas – Drawbacks”. 1. Which of the following is the drawback of smart antenna? a) Design of trans-receiver b) Spacing between base stations c) Probability of collisions being reduced d) Focused to an intended direction 2. Which of the following statement regarding … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Smart Antennas – Benefits”. 1. Which of the following statements is false regarding smart antenna for 802.11 applications? a) Coverage area is increased b) Signal paths are reduced c) Probability of collisions is increased d) Interference is reduced 2. Which of the following … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Multi Hop Propagation”. 1. The propagation of wave from transmitter to receiver without touching the ground is called as ___ a) Single hop distance b) Virtual height c) Actual height d) Multi-hop 2. The propagation of wave from transmitter to receiver by touching … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Maximum Usable Frequency”. 1. The maximum possible frequency for which the wave is reflected back for a given distance of propagation in the ionosphere layer is called as_______ a) Maximum usable frequency b) Critical frequency c) Resonance frequency d) Dominating frequency 2. If … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Critical Frequency”. 1. When a wave is incident normally then the acceptable highest frequency at which signal can be returned is the ______ a) critical frequency b) LUF c) optimum frequency d) dominating frequency 2. What is the critical frequency when the electron … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Virtual Height”. 1. The effective height of a layer of ionized gas in the atmosphere by which the radio waves are reflected around earth’s curvature is called Virtual height. a) True b) False 2. Relation between skip distance d, virtual height d and … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Space Wave Propagation – Tropospheric Scatter”. 1. What is the frequency at which tropospheric scatter occurs? a) Above 30MHz b) Below 30 MHz c) < 3MHz d) > 3 MHz and < 30MHz 2. What is the range of frequency at which tropospheric … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Space Wave Propagation – Refractivity”. 1. Which of the following varies with the refractive index in the atmosphere? a) Radio horizon b) Optical horizon c) Line of sight (LOS) d) Both radio horizon and LOS 2. The expression for refractivity in terms of … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Space Wave Propagation – Duct Propagation”. 1. Duct propagation is due to which layer? a) Temperature Inversion layer b) Higher atmospheric layer c) Ionospheric layer d) Surface water 2. Temperature inversion layer occurs due to _____ a) Super refraction b) Reflection c) Diffraction … Read more
This set of Antennas Multiple Choice Questions & Answers (MCQs) focuses on “Space Wave Propagation – Line of Sight Distance”. 1. Which of the following statement is defined as line of sight distance? a) Distance covered by a direct space wave from transmitting to receiving antenna b) Distance covered by an indirect space wave from … Read more
