ANTENNA DOWNTILT COVERAGE CALCULATOR. Number representing 3GPP ARFCN/EARFCN/UARFCN (frequency) CellMapper is a crowd-sourced cellular tower and coverage mapping service. e. Latitude of data point in Decimal Degrees (ex. angles = 1×2 60 117. Basic Path Analysis Tool. VISUAL BASIC & MAP BASIC APPLICATION. download - Radio Frequency Systems . To get maximum line of distance you need to enter the height of the antenna. Frequency to Test(MHz) Vertical Separation (Unit of Measure) Note: The values indicated above are approximate because of coupling which exists between the antenna and tower transmission line. Outputs. 344847969 Antenna Downtilt Calculator. If the dielectric constant of the material is not known, you can choose to put in the velocity of. The Antenna downtilt angle calculator calculates distance from tilt angle and tilt angle from horizon distance. Learn how to plan for antenna downtilt and how to ensure installations are done correctly. caltulatof for downtilt Result: Free Space Path Loss (FSPL) calculations are often used to help predict RF signal strength in an antenna system. Therefore, this research aims to enhance the gain of a slotted microstrip antenna in the UHF RFID communication band. All of our tools covering finance, education, health, cooking, and more are free to use! Our easy to use calculators deliver fast, reliable results on any device. CommScope offers a comprehensive assortment of remote electrical downtilt (RET) accessories, including actuators, controllers, grounding kits, bias tees, control cables and junction boxes, and Teletilt® RET system components support AISG 1. The file can be edited to add the required header lines. Audio Calculators Roundtable Toolbox Air Absorption Calculator Rita Merlijn: It keeps me from losing my sanity; allows Merlijn: Import an impulse response and apply me to verify what I can expect from changes in virtual filters to the loudspeaker response. RF calculations and conversions include metric-standard, link. Antenna downtilt calculations are necessary in many common applications requiring the use of directional RF antennas including cellular networks, distributed antennas systems (DAS. The Tee attenuator (T-pad) is a specific type of attenuator circuit which resembles the shape of the letter "T". 0000. Scribd is the world's largest social reading and publishing site. Half power beam width is the angle in. Longitude of data point in Decimal Degrees (ex. Where: r represents the radius of the first Fresnel zone. Downtilt Coverage Radius. download time = 640 seconds = 10 minutes and 40 seconds. dBm to Watt: Tool to convert the dBm to Watt unit. xls), PDF File (. Scope of supply Panel and 2 units of clamps. 8 in (60 - 70 mm) OD round members. This calculator will help you determine the approximate downward angle (degrees) for a transmitting antenna in order to propagate signals with optimal strength and coverage. Please fill out this field. Pattern bloomin g becomes significant past 3∘ of mechanical downtilt, which corresponds to 6. 24 Over Horizon Over Horizon 3 0. Antenna downtilt calculation. Please note that this calculator is only valid for far-field calculations. Log On. Pasternack's Antenna Downtilt Calculator (aka Antenna Tilt Angle Calculator) is . Downtilt Angle. 15. Give it a try now!ANTENNA DOWNTILT CALCULATOR 855-276-5772 I kpperformance. As mentioned below the Ubnt omni's have between 2 and 4 degrees of downtilt, and between 7-12 degrees of vertical beamwidth. Entered by: Hugo Caro. 0. EP2838289B1 EP12875979. Antenna Downtilt and Coverage Calculator - Electrical Engineering & Electronics Tools. yaro82. Operational conditions in the GSM network suggest that a 6∘ electrical downtilt is desirable. Tems-Coordinate-Converter. 18 0. Antenna Downtilt Coverage Radius Calculator. 3048 meters , 1. Link Budget CDMA. Dictionary meaning of tilt is "incline or bend from vertical position". RF Calculators & Conversions. 1 Quick Predict Antenna Tool for Ant18dBi - Free download as Excel Spreadsheet (. Reset. 2574. 3 Imbalanced learning. CONICAL HORN ANTENNA GAIN CALCULATOR. 3D Channel Model in 3GPP Bishwarup Mondal, Timothy A. Downtilt can be accomplished using the following methods: Mechanical downtilt: This process involves physically adjusting an antenna’s pole-mount brackets, using a digital. the electrical antenna downtilt can not be simulated. Link Calculator 2. Vook, Amitava Ghosh, Nokia Networks, USA Young-Han Nam, Yang Li, Charlie Zhang, Samsung Research AmericaCalculator. 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Calculate gain of patch antenna Create probe-fed circular microstrip patch antenna - MATLAB Triangular Patch Antenna Calculator - coast-setup57's blog Planes, Gains and Beamwidths - AccelTex Phased Array Antenna Patterns—Part 1: Linear Array Beam Characteristics and Array Factor | Analog Devices Microstrip patch-antennaControlling spreadsheet display terms and be able to describe the functions and usage of each of the following 6. txt) or read online for free. Download now. 37 km Over Horizon Over Horizon 1 0. S. Built-in antennas are optimized for horizontal ceiling mounted orientation of the AP. yaro82. Additional Contribution. 5 dBi on the horizon (15 dBi total). 15 0. Countdown to Any Date – Create your own countdown. com Antenna Height: 75ft Antenna Beamwidth: 7° Downtilt (°) Inner Radius (miles/km) Outer Radius (miles/km) 0 0. Downtilt Calculator ; Subscribe To Our Newsletter. Antenna Downtilt Calculator - Free download as Excel Spreadsheet (. PPM to Hz Calculator. A small antenna angle provides a high antenna gain. Join us on the fascinating history of the calculator! Make math easy with our online calculator and conversion site. txt) or read online for free. In order to determine what the math problem is, you will need to look at the given information and find the key details. Loss increases with distance, so understanding the FSPL is an essential parameter for engineers dealing with RF communications systems. Touch Down Points: This Tool will be able to calculate the down Tilt and distance of coverage from antenna for 3dB upper and lower, main loop. Therefore: 4G mechanical downtilt + 4G electrical downtilt – 0. Setting The Downtilt On Your Telrad Lte Sector Steve Discher. Besides the downward angle, this tool will also give you the inner and outer radii of coverage given the antenna's beamwidth. Simply select the quantity of convergence points, adjust the length and select the cable from the menu to create a bill of materials will be generated - showing the minimum amount of items required to configure a system. Calculate the lengths of RG-58 (Velocity Factor =0. 8. Use the conversion ratio to complete the unit conversion, basically dividing the input by 1, the ° units cancel out, and we are left with rad units. Loan Term. Transmitter Height. Same-day shipping if you order in the next hours!. By everything RF. End Amount. 8s Monthly: 43m 28s Quarterly: 2h 10m 24s Yearly: 8h 41m 38s Direct link to the page with these results: uptime. 15 0. In other words, Beam width is the area where most of the power is radiated, which is the peak power. Advertisement Remove ads, dark theme, and more with Premium. . For example, an electrical downtilt will make both the front lobe and the back lobe tilt down. Touch Down Points: This Tool will be able to calculate the down Tilt and distance of coverage from antenna for 3dB upper and lower, main loop. 10-50 Mbps. Gustavo Cruz Saldaña. 2A EP12875979A EP2838289A1 EP 2838289 A1 EP2838289 A1 EP 2838289A1 EP 12875979 A EP12875979 A EP 12875979A EP 2838289 A1 EP2838289 A1 EP 2838289A1 Authoritylatitude,longitude,altitude,MCC,MNC,LAC,CID,signal,type,subtype,ARFCN,PSC. Find out more about Cambium Networks:. Link Calculator 2. Efficiency (k) %. 4 - 4. Enter your desired frequency (MHz) of operation (i. 60. g- Two channels, one with a bit rate of 190 kbps and another with a bit rate of 180 kbps, are to be. 60934Km , 1 Km = 0. Salvar Salvar Antenna Downtilt Calculator para ler mais tarde. Compound. * 각각 네 가지 변수 입력 후 Calculate 클릭. edu Parameters of an antenna-beamwidth - YouTube Horn Antenna for the. This is a required field. AP-635: Integrated downtilt omni-directional antennas for 2x2 MIMO with peak antenna gain of 4. Finally, a comparison of antenna patterns in cartesian vs. , physically adjusting each antenna element pole mount) or electrical downtilt (e. For further information on this formula, please review the figure below. Electronic Warfare and Radar Systems Engineering Handbook - Antenna Introduction / Basics - RF Cafe PDF) Computer Simulation of a Pyramidal Horn Antenna Using CST MWS | Gabriele Galiero Casay - Academia. This angle, measured in degrees,. 37 km Over Horizon Over Horizon 1 0. (GSM Tilt shouldn't be like UMTS or LTE) Clutter Type (Rural Tilt shouldn't be like Dense urban) May be Transmit power as well ;)The planned antenna downtilt is 4 degrees; the inner cell radius can be calculated to 190 meters and the outer cell radius to 570 meters. 7. 이웃추가. The present invention provides a method, a device, and a system for optimizing a tradeoff between capacity and coverage of a network, which relate to the field of communications, so as to implement the object of optimizing the capacity and coverage of a cell and effectively controlling the coverage hole and coverage overlap performance of the entire network. Procuct Brochure. Email support availble to premium users. Dipole Antenna Calculator. An Antenna Downtilt and Coverage Calculator, or Antenna Tilt Calculator, aids the user by providing an approximate downward angle at which to install a. 901 supersedes TR 38. Trine University. Beamwidth angle is measured in plane containing the direction of main lobe of the antenna. The antenna downtilt and coverage calculator (also known as antenna tilt angle calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned. 00 feet, antenna height Answer 14. Therefore the lower 3 dB point would be at 7 degrees below the horizon. Section 7: Detailed Parameter Planning: Physical Cell ID (PCI) Planning PCI Collision Free Principle PCI Confusion Free. 4: Antenna Characteristics. The tilt applied on the upward is referred as uptilt and the tilt applied on the downward side is referred as downtilt. and Canada (866) 727-8376 International +1 (949) 261-1920 Online Calculators How to Buy Calculations: Antenna Downtilt The tilt angle or distance can be calculated by providing the base antenna height Hb, remote antenna height Hr and either the tilt angle or distance. It assumes there is nothing between the radio signals and the antenna horizon. ADT=tan−1(hT−hRD)ADT=tan−1(hT−hRD) Router=hT−hRtan(ADT−θBW)2Router=hT−hRtan(ADT−θBW)2 Rinner=hT−hRtan(ADT+θBW)2Rinner=hT−hRtan(ADT+θBW)2 Where: ADTADT= antenna downtilt in degrees hThT= height of the transmitting antenna hRhR= height of the receving ante…Downtilt Calculator Radio Horizon vs Beamtilt Calculator This radio horizon vs. Calculate distance to horizon (smooth earth) Enter 100. pdf), Text File (. The present invention provides a method, a device, and a system for optimizing a tradeoff between capacity and coverage of a network. can you share rf-vu. CONICAL HORN ANTENNA GAIN CALCULATOR. The Date Calculator adds or subtracts days, weeks, months and years from a given date. VBA Introduction in Excel and Access Access and Excel Basic Macro Basic and Internet Help First Case :. Outer Coverage Radius. The Tee attenuator consists of one series resistor at the input and two parallel, one of which is grounded while the other goes to output. For downtilt mounting use the clamps for an appropriate mast diameter together with the downtilt kit. In order to accurately calculate for downtilt, one needs to know the vertical beamwidth of the. txt) or read online for free. Antenna Downtilt Calculator. To find the half wave, divide that number by two. Correct Downtilt Angle Ubiquiti Munity. You should use this calculator as a tool to understand. As shown above, the 400 MB video file will finish downloading in less than 11 minutes over a stable 5 Mbps connection. Electrical downtilt enables a uniform reduction in coverage, as it prevents pattern blooming from occurring. 54 0. Remote Antenna Height (Hr) Feet. When autocomplete results are available use up and down arrows to review and enter to select. The total score summed from all leaves is used to calculate the uncertainty of this instance. Any use of this system in violation of the UScellular Code of Conduct or applicable laws is unauthorized and may constitute a violation of the Federal Computer Fraud and Abuse Act. Subtract the initial value from the final value, then divide the result by the absolute value of the initial value. Antenna Downtilt Calculator - Free download as Excel Spreadsheet (. The invention discloses a kind of Downtilt based on GIS-Geographic Information System and determine method and device, wherein, described method includes: determine the equivalent covering radius of the community of each base station according to the base station position information in GIS and Thiessen polygon principle；And, the maximal. downtilt. This is the easiest and fastest way to control an antenna’s pattern, but the downside is that. Link Budget CDMA. 5x106 / 250 x103 =6 bits/Hz Then 64 QAM is required. Besides the downward angle, this tool. 4 - 2. Antenna Downtilt and Coverage Calculator Pasternack . All of our tools covering finance, education, health, cooking, and more are free to use! Our easy to use calculators deliver fast, reliable results on any device. Antenna beamwidth is the angular measure of the antenna pattern coverage. 11 0. Compared to utilization of a static network-wide downtilt angle, dynamically chang-ing downtilt angle can further boost the system capacity by 20–30% under certain circumstances [14]. This radio horizon vs. Watt To dBm Calculator. 5∘ of electrical downtilt provides a uniform reduction of gain of approximately 3. In one typical RF application, VSWR is used to measure the amount of reflection due to impedance mismatch. Operational conditions in the GSM network suggest that a 6 ∘ electrical downtilt is desirable. Advertisement. MCS in TD LTE - Comparison Between WiMAX and TD-LTE V4 0(20120924)Finance Calculator. Wavelength Calculator: Calculate the wavelength of frequency. 18 0. So at 15ft high, say a one story roof, the center of a 2Ghz beam is hitting the ground 214ft away. Step 4. factor antenna downtilt calculator pasternack vswr calculator reflection coeffecient calculator return rf calculators everything rf pi and tee attenuator calculator everything rf watts to dbm. It also mentions formula or equations used in these antenna tilt angle calculators. ”. (Note that TR 38. Calculating Antenna Downtilt. Antenna Downtilt and Coverage Calculator This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them. WCDMA Link Budget. antenna height must be closely matched. 900. g. **Note: All of our calculators allow SI prefix input. Downtilt Coverage Radius - Free download as Excel Spreadsheet (. 24 Over Horizon Over Horizon 3 0. e. Payments: Multiply the years of your loan by 12 months to calculate the total number of payments. ° (degree) Inner Coverage Radius. Antenna Downtilt and Coverage Calculator Pasternack The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle,. The method includes: receiving statistical information and a first count that are sent by a base station; establishing at least one coverage cluster; calculating cluster values of all the coverage clusters; acquiring an. 65° H (Heavy) 120° mounting hardware. 1 Quick Predict Antenna Tool for Ant18dBi - Free download as Excel Spreadsheet (. pdf), Text File (. Our numerical results show that after applying the optimal antenna downtilt, the network performance can be significantly improved, and hence the ASE crash can be delayed by nearly one order of magnitude in terms of the BS density. The method includes: receiving statistical information and a first count that are sent by a base station; establishing at least one coverage cluster; calculating cluster values of all the coverage clusters; acquiring an. RF calculations and conversions include metric-standard, link. 8. everything RF has created a series of RF calculators to help engineers and students with common calculations that they need to conduct frequently. . Calculate. 0 kg 1. Outputs. 5 KHz f- Calculate the QAM modulation required to transmit 1. 10 10. The vector elements specify the bearing, downtilt, and slant, respectively. Numerically solvable expressions are derived for such optimal antenna downtilt, which is a function of the BS density. 3. Downtilt Angle. 7:15 is 7. RF Calculator. A GSM antenna operating at 900MHz consists of eight stacked dipole antennas (3/4λ apart) fed by an ordinary corporate feed, producing a broadside radiation pattern. This calculator will help you determine the approximate downward angle (degrees) for a transmitting antenna in order to propagate signals with optimal strength and coverage. antenna height must be closely matched. yaml at master · coolabnet/caixadeferramentasTo convert ° to rad, use the conversion factor. 15. com] Bizet Georges Aragonaise From Carmen 29200 693. Identify the key design criteria and why it's different, identify the design elements to be managed, and the solutions used as well as the best practices and config choices used and why. The system designer can use mechanical (e. The overall result show full agreement with the trend of the FSPM. - Tee Attenuator. US20150057005A1 US14/529,916 US201414529916A US2015057005A1 US 20150057005 A1 US20150057005 A1 US 20150057005A1 US 201414529916 A US201414529916 A US 201414529916A US 2015057005 ACalculate the directivity magnitude, azimuth, and elevation angles from a helix's radiation pattern at 2 GHz. The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. downtilt. U. Embed. 8e9,0,1:1:360) bw = 57. This tool is designed to calculate the correct dimensions of a microstrip patch antenna if the operating frequency and the dielectric constant of the material used, is known. A microstrip patch antenna is one of the most popular microwave antennas. This means that the RAM can be used to predict coverage of wireless radio signal in areas dominated by rain. Kathrein Tool for Antenna. Category of. -178 4. Calculate the lengths of RG-58 (Velocity Factor=0. The present invention provides a method, a device, and a system for optimizing a tradeoff between capacity and coverage of a network. Thanks. 17 1. 901 supersedes TR 38. The calculator is based on the antenna patterns from conventional Allgon antennas (ALP series) at 8, 15, 30, and 60 vertical beamwidth. Specifications. If the object has uniform density, the center of mass is the geometric center of the object, which is called the centroid. Currently, we have around 200 calculators to help you "do the math" quickly in areas such as finance, fitness, health, math, and others, and we are still developing more. 11 0. • Total Downtilt = Electrical DT + Mechanical DT • Install antenna with accurate mechanical downtilt per calculations • Test and adjust if needed 37 RF Cables • PIM - PIM is defined as the unwanted signal or signals generated by the non-linear mixing of 2 or more frequencies • High PIM means poor reception and limited bandwidth to the. Step 2. However, the key to selecting an antenna gain is to meet signal coverage requirements. Learn more about how we can help you protect your people, processes, and profits. If you desire vertical beam downtilt, cut the elements 2% shorter, than the length calculated in step 1, for 3° of downtilt. xls - Free download as Excel Spreadsheet (. is/99. Basic Path Analysis Tool. Operational conditions in the GSM network suggest that a 6∘ electrical downtilt is desirable. Save Save Antenna downtilt calculator For Later. 5. The method includes: receiving statistical infoNumbering a whopping 27, Pasternak says its RF calculator and conversion tools were developed by its engineering staff. 15 0. The tilt angle or distance can be calculated by providing the base antenna height Hb, remote antenna height Hr and either the tilt angle or distance. Escrow: The monthly cost of property taxes, HOA dues and homeowner's insurance. ANTENNA DOWNTILT CALCULATOR 855-276-5772 I kpperformance. 2A EP12875979A EP2838289B1 EP 2838289 B1 EP2838289 B1 EP 2838289B1 EP 12875979 A EP12875979 A EP 12875979A EP 2838289 B1 EP2838289 B1 EP 2838289B1 AuthorityUse the beamwidth function to calculate the beamwidth of the antenna. 3 for 42 – 115 mm diameter. Antenna Beam Tilt Calculator Posted on February 26, 2021 by Sandra Downtilt how to set it rhombic antennas finding dish offset angle antenna calculators design rhombic antennas Downtilt Calculator - Free download as Excel Spreadsheet (. Moreover, the corresponding downlink capacity gains varied between 0-58%. Half power beam width is the angle in. Procuct Brochure. 37 km Over Horizon Over Horizon 1 0. The method includes: receiving statistical information and a first count that are sent by a base station; establishing at least one coverage cluster; calculating cluster values of all the coverage clusters; acquiring an. 15 0. The Antenna Downtilt Calculator should work well for very short links, but. The Antenna CalculatorforHalf-Wave Dipoles. This antenna tilt angle calculator also provides, given a beamwidth, the inner and outer. 65° H (Heavy) 120° mounting hardware. English term or phrase: electrical downtilt. Motorola Mobility LLC. years months. Frequency to Wavelength. txt) or read online for free. Learn about CommScope remote electrical downtilt systems in this brochure. Downtilt Calculator Radio Horizon vs Beamtilt Calculator This radio horizon vs. Mortgage insurance: The mandatory insurance to protect your lender's investment of 80% or more of the home's value. 148772936 Atoll 3 1 2 Automatic Cell Planning Module. This is the easiest and fastest way to control an antenna’s pattern, but the downside is that. antenna downtilt. 60934Km , 1 Km = 0. lowest order propagation mode in a circular waveguide is te 11 which offers minimal degradation of signals the possible tm modes in circular waveguides are tm1710 –2180 +45°/–45° Polarization Height/width/depth 2532 / 269 / 154 mm. Antenna downtilt calculations are necessary in many common applications requiring the use of directional RF antennas including cellular. 733 680 1 clamp Mast: 380 – 521 mm diameter 5. 9 (or uptime. This calculator will help you determine the approximate downward angle (degrees) for a transmitting antenna in order to propagate signals with optimal strength and coverage. -177 4. Antenna vertical. and Canada (866) 727-8376 International +1 (949) 261-1920Online Calculators How to Buy Calculations: Antenna Downtilt The tilt angle or distance can be calculated by providing the base antenna height Hb, remote antenna height Hr and either the tilt angle or distance. —and calculates both the typical system return loss along with the worst case return loss. Parabolic Reflector Calculator. Do all your RF calculations using this application. com, a global distributor of electronics components. pdf), Text File (. Noise Temperature to Noise Figure Converter. Distance from front of antenna to parapet wall or edge of roof : Electrical or Mechanical Downtilt of Antenna (in degrees): Vertical beamwidth of antenna (in degrees): Height of parapet wall (leave blank if none): HEIGHT NEEDED TO CLEAR EDGE: Antenna Placement Distance Calculator 40 feet 4 deg 6 deg 4 feet 8. This paper uses electrical. 11:56. Converting from minutes to decimal hours. 901' (default) 'isotropic' Antenna element radiation pattern as described in TR 38. This calculator will determine the correct antenna downtilt angle given the heights of the antennas and the distance between them. Base Antenna Height (Hb) Feet. xls / . Downtilt can be accomplished using the following methods: Mechanical downtilt: This process involves physically adjusting an antenna’s pole-mount brackets, using a digital level set against the back of the antenna to obtain an accurate measurement. The Radar Designer app is an interactive tool that assists engineers and system analysts with high-level design and assessment of radar systems at the early Determine math questions. Ourtheoretical and numericalresults demonstrate that the performance of the cellular network can be improved significantly using the optimal antenna downtilt. Loss increases with distance, so understanding the FSPL is an essential parameter for engineers dealing with RF communications systems. Dorbert N3ST . The downtilt is depicted in the figure-1. ANTENNA DOWNTILT CALCULATOR Note: These values represent a first-order approximation and assumes a smooth terrain with no obstacles. beamtilt calculator estimates your radio antenna beam downtilt options based on antenna height above average terrain (HAAT) and vertical beamwidth. 4. 2. Therefore the lower 3 dB point would be at 7 degrees below the horizon. 1 mile = 1. Embed. It also provides, given a beamwidth, the. Use this calculator for basic calculations of common loan types such as mortgages, auto loans, student loans, or personal loans, or click the links for more detail on each. Reset. Antenna Downtilt Calculator. 1 ° ÷ 57. This calculator determines the correct antenna downtilt angle given the heights of the antennas and distance between them. 231). Muhammad Shahid. Downtilt Angle (A) Vertical Beamwidth (BW) Calculate. 12 0. Get HUAWEI WATCH GT 2 screen and battery replacement, download. Visit Fairview Microwave's RF coaxial attenuators page for product details. 4. 91138 feet Antenna. 17 1. Open navigation menuThe effect of downtilt in RF coverage and signal strength is discussed in this section. 15 0. For further information on this formula, please review the […]A GSM antenna operating at 900MHz consists of eight stacked dipole antennas (3/4λ apart) fed by an ordinary corporate feed, producing a broadside radiation pattern. sxcvhbjnk,;Rf Link Budget Calculator Web-1. 25 to the 7. . Wavelength Calculator: Calculate the wavelength of frequency 4. You are on page 1 of 2. Search inside document . Remote Antenna Height, Hr (input2 in feet) : Distance between antennas, D (input3 in miles) : Antenna Downtilt angle (output in Degrees) : EXAMPLE of antenna downtilt angle calculator: INPUTS: Hb= 120 feet , Hr = 80. Here, scroll down and click “Windows Store Apps” to expand it, and then click Run the Troubleshooter. jagdeepnehra007. Result. Our RF calculators and converters will provide the figures you need for your radio frequency engineering needs. Antenna Electrical downtilt is widely used in mobile communication networks for changing antenna radiation pattern and coverage area when downtilt angle is changed, thus the main lobe of the. )With downtilt, the beamwidths are manipulated to provide more coverage below the antenna than above the antenna. 0 our total is 7. 1. Diameter (d) Wavelength (λ) Aperture Efficiency (eA) Calculate.