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homework 1 solution

by: Prarthana ramani

homework 1 solution eerf 6395

Prarthana ramani
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this notes explains chapter 1. introduction as well as it also provides solution to the homework 1.
RF And Microwave systems
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This 6 page Class Notes was uploaded by Prarthana ramani on Tuesday April 5, 2016. The Class Notes belongs to eerf 6395 at University of Texas at Dallas taught by Lehmann in Spring 2016. Since its upload, it has received 29 views. For similar materials see RF And Microwave systems in Education and Teacher Studies at University of Texas at Dallas.

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Date Created: 04/05/16
EERF6395 Homework Set #1 1. Do internet research to find 5 different drones (quadcopter or hexcopter) and create a table that summarizes the following properties of each. Mfr. Model Quad or Max Min. Standard Flight Price Name No. Hex- Altitu Payl features (GPS, Durati ($) Copter? de oad video, etc.) on per (m) (lbs) charge (min) Hubsan H107 Quadcopt 300 USB Above 30.30 x4 L er m cable for 9 min $ charging , Latest 6-axis flight control system with adjustable gyro sensitivity, Lightweight airframe . Walker H500 Hexcopte <27 12channel FPV 25min 1199. a qr tali r 00g radio,13MP HD 00$ sensor,Included Walkera iLook+ HD Camera w/ 5.8Ghz Video transmitter,Wal kera 3-Axis Gimbal,GPS altitude hold mode Syma X8W Quadcopt 500ft 603 10- 114.0 er g Record Video 12min 0$ and Take Photo thru the phone,6-Axis Gyroscope,Cam era for taking Photo and Video,It can do a 360° flip,2.4Ghz Frequency RC System. MJX X- X901 Hexcopte 22g 5min 27.90 series r $ 6-Axis hexaco Gyroscope, RC pter hobby grade 2.4Ghz transmitter,LED lights Storm Quadcopt 497ft 660 RadioLink 14min 329$ drone 4 4-V3- er g 2.4Ghz AT9 CC3D Radio System w/ R9D 9-Ch Receiver 2. For the following, write a short paragraph (3-4 sentences) for each article. Include the title of the article, date and the associated internet link: a. Summarize two internet articles from the last 30 days that discuss ways quadcopter or hexcopter drones are being used successfully. 1.Flying DJI’s new Phantom 3 Standard—better software, better camera by Lee Hutchinson - Aug 5, 2015 7:01am CDT th Article proposed on 5 august that phantom 3 standard is released which is used to produce 2.7k hd video with less price. 2 anywhere/ b. Summarize two internet articles from the last 30 days that discuss ways quadcopter or hexcopter drones are being used inappropriately. shore/ porn-dvds-to-jail/ 3. Assuming the earth is a perfect sphere, show calculations and determine the maximum line of sight permissible for an electromagnetic wave emanating from a 50-meter tall antenna in Miami, Florida to a ship at sea in the Atlantic Ocean. Solution: Earth is considered as the perfect sphere ,thus transmitter and receiver are at the same line of propagation. Radius of earth is R and distance of line of sight is given by D Optical effective line of sight is , D= 3.57 √kh Where, h= height of antenna = 50m K= adjustment factor due to refraction = 4/3 Substituting the value of h and k in the above equation, D= 3.57 √(4/3)50 = 3.57 *8.16 = 29.15km


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