The results presented by this calculator are based on input values and basic theoretical principles of wireless. Our RF and microwave calculators and converters will provide the figures you need for your radio frequency engineering needs. By utilizing antenna tilt, signal reception within a cell can be improved and interference radiation towards other cells can be effectively reduced, which leads to a higher signal-to. pdf), Text File (. Directory 2012. Parabolic Reflector Antenna Gain. 0% (1) 0% acharam este documento útil (1 voto) 126 visualizações 2 páginas. Whip Antenna Calculator. 63. The vector elements specify the bearing, downtilt, and slant, respectively. It also provides, given a beamwidth, the inner and outer radius of beam's coverage. Share. 1 dBi, Power 300 to 500 W. The array has 64 antenna elements arranged in 8-by-8 configuration and is used as a 5G mobile base station antenna at 28 GHz. by Peter Delos, Bob Broughton, and Jon Kraft Download PDF Introduction. +/- 7. 9, and its channel capacity performance can reach more than 99. antenna on its mounting point. 4 - 4. EIRP Calculator. 4 - 4. Fresnel Zone Calculator. 1 shows the mechanical downtilt of an antenna. 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. It should only be used. Link Calculator 2. 63 mi 2. solution of downtilt is not possible in an omni antenna because of the nature of its radiation pattern. Optimum downtilt angles were observed to vary between 3:5--10:5- depending on the network configuration. It is common to utilize antenna downtilt to adjust the direction of the vertical antenna pattern, and thus increase received signal power or. 20 Over Horizon Over Horizon 4 0. The ideal point-source radiates electromagnetic energy in a spherical pattern, so the "maximum" radiated power should be the same in all directions. 4 - 4. 12 mi. Antenna Downtilt and Coverage Calculator; Power Added Efficiency Calculator; Balanced Attenuator. 0% 0% found this document useful, Mark this document as useful. First choose the type of unit you would like to measure i. Mount the antenna to a pole making sure to clamp the antenna to the mast at a point below the decoupling sleeve area. Abstract: The performance of unmanned aerial vehicle (UAV)-enabled networks is generally bottlenecked by severe inter-cell interference and limited backhaul connectivity. The aim of this massive simulation campaign was expected to provide an answer to two questions: firstly, how to select the downtilt angle of a macrocellular base station. Base Antenna Height (H b) Remote Antenna Height (H r) Distance Between Two Antennas. 2. 4-port sector antenna, 4x 1695–2690 MHz, 65° HPBW. The figure of broad side array with λ/4 spacing is shown below. pdf), Text File (. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. 5 in (60 - 115 mm) OD round members. Ant. Antenna height h= 38. Antennas of this size would be impractical for many reasons. For further information on this formula, please review the […]3D MIMO introduces the vertical dimension of the antenna downtilt angle to make the direction of signal transmission more accurate to improve system capacity. . Antenna downtilt calculations are necessary in many common applications requiring the use of directional RF antennas including cellular. and Canada (866) 727-8376 International +1 (949) 261-1920 Antenna Angle. 3-10 connector which is 40 percent smaller than the 7-16 DIN connector. Adjusting the antenna's tilt is one of the more important system optimization tasks that is carried out by a specialized team. NOTE: This is not an antenna for the beginner antenna builder! If you fall into this category, please read the notes at the end of this article. This paper has proposed a user-density-based coverage optimization technique for ultra-dense cellular networks. 0 Tutorial Legal disclaimer: This calculator is designed to be an informational and educational tool. For the antenna architecture of 8H4V or 16H4V, the antenna electrical downtilt is fixed to 6°. 5. 18 0. The parabolic reflector antenna gain is calculated as the gain over an isotropic source. In other words, Beam width is the area where most of the power is radiated, which is the peak power. RF calculations and RF conversions include metric-standard, link budget, coax cable, power, attenuation, frequency and many more. Same-day shipping if you order in the next hours!. If the dielectric constant of the material is not known, you can choose to put in the velocity of. Please note that this calculator is only valid for far-field calculations. Click Ok. 5 kg 1 (order separately if required) For downtilt mounting use the clamps for an appropriate mast diameter together with the downtilt kit. 5:1. Result. Abstract: The performance of unmanned aerial vehicle (UAV)-enabled networks is generally bottlenecked by severe inter-cell interference and limited backhaul connectivity. How To Calculate Radar Beam Width Gems Sensors. There is a phase shifter for a single array of 16H2V antennas. This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them. Allows Beam Downtilt. Dielectric Constant. EIRP, or effective isotropically radiated power, or equivalent isotropically radiated power, is a measurement of output power in one direction from an ideal, one dimensional source. 11n/ac 4x4:4 MU-MIMO Dual Radio Integrated. 5 in (60 - 115 mm) OD round members. Line of Sight Calculator. 1 and 2. Antenna Downtilt Coverage Calculator. 8. 24 Over Horizon Over Horizon 3 0. In order to evaulate the impact on your UHF system you would need as a minimum the following information: Lat & lon of the tower Total height of the tower Is the antenna to be side mounted or top mounted If side mount the azimuth of the antenna Height Above. Enter the Height above average terrain Required9 Weight Type No. Downtilt Angle (A) Vertical Beamwidth (BW) Calculate. Line of Sight Calculator. As we can see, most of the works that investigated the effect of the antenna downtilt using field trials or. : Center of beamwidth horizon Answer > Horizon mi. 0% 0% found this document not useful, Mark this document as not useful. Kit contains one scissor top bracket set and one bottom bracket set. 10 -3. RF Calculators; Antenna Downtilt Angle Calculator; Antenna Downtilt Angle Calculator. More details for BSA-M65R-BUU-H6 can be seen below. Numerically solvable expressions are derived for such optimal antenna downtilt, which is a function of the BS density. On a 200 foot tower with an antenna elevation. Antenna Downtilt Angle Calculator. Downtilt. #DIV/0!An omnidirectional antenna, for example, is usually a vertical polarized antenna. The picture shows the development of the 8,65 m long 144-MHz-OWL- Yagi with 14 elements. 51 in (115 - 140 mm) OD round members. Antenna tilting is a promising coverage optimization technique to be used in 5G networks, that significantly improve the signal to interference plus noise ratio (SINR) by choosing the appropriate angle of tilt. In this paper, a method for coverage optimization using base station antenna electrical tilt in. Mounting bracket for cylindrical pipe installations (60-115mm pipe diameter) for fix mechanical tilt applications. Power Added Efficiency Calculator Loss increases with distance, so understanding the FSPL is an essential parameter for engineers dealing with RF. 6214 miles 1 feet = 0. When mounted with the radome facing up in a mobile application, as shown. * 안테나의 3dB 빔폭 (수직)을 기준으로 커버리지 거리를 계산. Learn how to plan for antenna downtilt and how to ensure installations are done correctly. 0 Tutorial. Line of Sight Calculator. antenna calculator microstrip patch antenna is used in mobile handset due to simple look lower cost small size and light in weight this antennaAntenna Setup. -178 4. Antenna Down Tilt Calculator and Coverage Tool: Used to determine the approximate downward angle, measured in degrees, which the transmitting antenna is to be positioned for optimal signal strength and coverage. It also mentions formula or equations used in Do my homework for me. Antenna Downtilt CalculatorLink Budget is a way of quantifying a communication link's performance while accounting for the system's power, gains, and losses for both the transmitter (Tx) and receiver (Rx). White Paper for the Wind Load Test and Calculation of the Base Station Antenna April, 2019 Page 1 of 17 White Paper Wind Load Test and Calculation of the Base Station Antenna. Loss increases with distance, so understanding the FSPL is an essential parameter for engineers dealing with RF communications systems. . In the video below, we explain how to calculate the coverage area of the antenna, taking into account the height of the antenna and its radiation characteristics. Abstract: In this paper, we establish a full 3-D channel model to support the performance analysis and evaluation of active antenna array (AAA)-based wireless communication systems. [bw, angles] = beamwidth (hx,1. Moreover, the corresponding downlink capacity gains varied between 0-58%. In radio communication, an omnidirectional antenna is a class of antenna which radiates equal radio power in all directions perpendicular to an axis ( azimuthal directions), with power varying with angle to the axis ( elevation angle ), declining to zero on the axis. Example Antenna File. JW184A Aruba AP-324 802. Besides the downward angle, this tool will also give you the inner and outer radii of coverage given the antenna's beamwidth. Wide Profile Antenna Downtilt Mounting Kit for 4. 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. BSAMNT-1. The calculator takes into account the earth’s curvature and effects from refraction in the atmosphere. In short, these antennas talk well mountaintop-to-mountaintop, but not down to the highway, where they are needed. In this. However, the key to selecting an antenna gain is to meet signal coverage. Calculations: Antenna Downtilt. Downtilt Antennas The beam downtilt below the horizon is adjusted by rotating the hex socket located at the bottom of the antenna. pdf), Text File (. This calculator will determine the correct antenna downtilt angle given the heights of the antennas and the. pole with a mechanical downtilt of 0°. RF calculations and conversions include metric-standard, link. ANTENNA DOWNTILT CALCULATOR Antenna Height: 75ft Antenna Beamwidth: 7° Downtilt (°) Inner Radius (miles/km) Outer Radius (miles/km) 0 0. For example, if you wish to input "25000000", just type "25M" instead. 8376 I pasternack. The aim of this paper is to evaluate and compare impacts of mechanical and electrical downtilt angles of antenna systems to the downlink performance of the 3GPP Long Term Evolution (LTE) networks. This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them. You may enter custom values, or choose from a list of commonly used materials. Math can be daunting for some, but with a little practice it can be easy! 2. Wide Profile Antenna Fixed Tilt Mounting Kit for 2. Antenna Height (H in feet) Feet. Inductance nH. 72%. Bandpass Filter Calculator This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter. Fig. If you have designed the antenna for downtilt you can check it byPhased Array System Toolbox. Helical Antenna Design. Nice antenna coverage calculator from All About Circuits. Result: Free Space Path Loss (FSPL) calculations are often used to help predict RF signal strength in an antenna system. In fact, striplines often make components such as band-pass filter's more accurately, with more symmetric roll-off and no lower cutoff frequency. In this paper, we verify the effect of antenna downtilt angle on channel capacity through simulations of four fixed antenna downtilt angles, 90, 96, 99, and 102 degrees under the. rakhonde. 29 Over Horizon Over Horizon 2 0. Dielectric Height. ”. Antenna Downtilt and Coverage Calculator determines the correct antenna downtilt angle given. They can not reflect all aspects of real installation. Gaussian Beams. The antenna electrical downtilt (1) 8H4V/16H4V: Only the digital downtilt is can be adjusted Compared to waveguides, microstrip is generally has a lower power handling capacity, and higher losses due to the fact that it is not enclosed. **Note: All of our calculators allow SI prefix input. 1. Tags: Tri-Sector. PATCH ANTENNA. This Fresnel Zone and Antenna Height calculator helps you determine if you have “radio line of sight” between two distant points, or alternatively, how high you need to elevate either antenna to clear an obstruction. Dual-polarized tri-band 2-element low-profile downtilt-omni antenna (RP-SMA, cabled) for indoor use The AP-ANT-320 antenna is a tri-band, 2-element, dual-polarized low-profile downtilt omnidirectional antenna, intended for discrete ceiling mounted applications, providing coverage for Wi-Fi access in 2. Antenna Downtilt Coverage Radius Calculator. Mariam Sow. Link Calculator 2. S. The following article serves to build an understanding about the antenna parameter known as Electrical Tilt. The beam downtilt below the horizon is adjusted by rotating the hex socket located at the bottom of the antenna - Figure 5). RF calculations and conversions include metric-standard, link. October 4, 2022 1197 - Advertisement - This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them. everything RF has created a series of RF calculators to help engineers and students with common calculations that they need to conduct frequently. 5 in (60 - 115 mm) OD round members. Section 6: 5G Downtilt Planning Antenna Tilt Types -Mechanical Tilt -Electrical Tilt -Preset Electrical Tilt -Mechanical Tilt Total 5G Beam Downtilt Same Coverage of SSB and CSI-RSRP Beams 5G RF Downtilt Planning Principles. 0 Tutorial Legal disclaimer: This calculator is designed to be an informational and educational tool. S. 3-10 Female Accessories Item Model Description Weight Units per antenna Downtilt kit ASMDT0C01 Mechanical downtilt:0 - 8 ° 2. Explain math problems Math is a challenging subject for many students, but with practice and. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. Antenna Design Ysis And Simulation 2017 11 29. This page of converters and calculators section covers Antenna Azimuth and Elevation calculator . 55). Open navigation menu 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. 5") or 140mm (5. Enter the distance between two antennas and their heights to calculate the down tilt angle. Add to My Products Lists. Their low profile design, often square or rectangular, allows them to be mounted to flat surfaces. Then select your desired output unit of measure, enter your numeric parameters, then click calculate. DOI: 10. To implement such systems, one has to use antennasOperation of Antennas Fixed Downtilt Antennas Manual Electrically Adjustable Downtilt Antennas The beam downtilt is factory set. antennas (BSAs). The Antenna CalculatorforHalf-Wave Dipoles. Pasternack's Skin Depth Calculator returns skin-depth as a function of a material's resistivity and permeability, as well as the application frequency. 15 0. Numerically solvable expressions are derived for such optimal antenna downtilt, which is a function of the BS density. 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. Hence,MDT is widely used in TDMA/FDMA (time-division multiplefactor antenna downtilt calculator pasternack vswr calculator reflection coeffecient calculator return rf calculators everything rf pi and tee. Field Analysis Radiation Pattern. Multiple actuators can be joined together either by daisy-chaining control cables or by using junction boxes. 5:1 you can adjust the decoupling sleeve slightly up or down for the best reading. The results presented by this calculator are based on input values and basic theoretical principles of wireless. The polar plot in Figure 5 illustrates the effect phase shifting has on the direction of the main lobe. When you apply tilts in antennas, make in a structured manner, for example with steps of 2 or 3 degrees – document it and also let your team know this steps. Calculate. xls), PDF File (. 27 mi. Wide Profile Antenna Downtilt Mounting Kit for 2. 12 0. Antenna Downtilt Angle Calculator. Enter the distance between two antennas and their heights to calculate the down tilt angle. Wide Profile Antenna Downtilt Mounting Kit for 2. APXVAA4L18_43-U-NA20. Downtilt antennas are used a lot in cellular and PCS applications. After entering the heights of the base and remote antennas and the distance between them, the downtilt angle is calculated by finding out the inverse tangent function. 901 Section 7. Network engineers often need to determine the correct antenna downtilt for maximum signal strength. This paper discusses antenna downtilt concepts and performance in an actual operating cellular system, the relationship between. 11 0. Antenna Height (H in feet) Downtilt Angle (A) Vertical Beamwidth (BW) Calculate Reset Result Inner Radius Distance (miles): Outer Radius Distance (miles): 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. The HPA-65R-BUU-H8 from Communication Components Inc. Conical gain horn antennas are used in a variety of applications due to their high power handling capability constant electrical performance across a broad bandwidth. When the customer adjusts the downtilt of the 3. Pasternack's Skin Depth Calculator returns skin-depth as a function of a material's resistivity and permeability, as well as the application frequency. 23 mi 0. 0205 km Downtilt Inner Cell R Outer Cell Radius main lobe Angle Lower 3db Upper 3db 0º 480 m 21. Wavelength Calculator: Calculate the wavelength of frequency 4. 2009. sum of downtilt + half the antenna vertical beamwidth plus 3 degrees to allow additional downtilt in the future if necessary 7. 29. Downtilt is when the beam is electrically lowered below the horizontal plane. 12 0. RF calculations and RF conversions include metric. H1: Signifies the height of the antenna above the ground at the base of the tower (in meters or feet). exe. Use the manufacturer's stated velocity factor for the cable you plan to use. In the toolstrip, under the INPUT section click on the Settings ( icon) to change the azimuth and elevation range values. It has been observed to be an efficient method to reduce other- In cellular WCDMA system, the same carrier frequency is cell interference in the main-lobe direction [1]. The aim of this paper is to evaluate and compare impacts of mechanical and electrical downtilt angles of antenna systems to the downlink performance of the 3GPP Long Term Evolution (LTE) networks. ANTENNA DOWNTILT CALCULATOR 855-276-5772 I kpperformance. ANTENNA DOWNTILT CALCULATOR Note: These values represent a first-order approximation and assumes a smooth terrain with no obstacles. 5 in (60 - 115 mm) OD round members. Note: If you select a waveguide size from the dropdown below, the broad wall width will be automatically calculated along with the other results. Antenna downtilt angle. Find a Partner. 7. angles = 1×2 147 287. 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. Determine the length of the ½ wave elements IN INCHES using the formula: 5904 divided by the Frequency in MHz, multiplied by the Velocity Factor of the of the dielectric: (5904/F x VF). 20 Over Horizon Over Horizon 4 0. Antenna Downtilt Calculator. The default value indicates that the broadside direction of the array points to the positive x-axis. 6214 miles. 5 in (60 - 115 mm) OD round members. OUTPUTS: Antenna Elevation Angle= 71. xls), PDF File (. 11 0. 63 mi 2. These radio frequency calculators help with unit conversion, attenuator design, antenna design, radars, and various other basic calculators. Pasternack's Antenna Downtilt Calculator (aka Antenna Tilt Angle Calculator) is used to determine the approximate downward angle, measured in degrees, Homework Support Solutions Homework Support Solutions is a great way to get help with your homework. The HPA-65F-BUU-H2 from Communication Components Inc is a Antenna with Frequency 698 MHz to 2. 85010008 1 downtilt kit Downtilt angle: 0° – 8° 6. Higher gain antennas achieve extra power by focusing on a reduced area; thus, the greater the gain, the smaller the. Wide Profile Antenna Downtilt Mounting Kit for 4. Led Beam Angle Calculator Lhq. The aim of this. Atr4516r0 PDF - Free download as PDF File (. Antenna Downtilt for WCDMA 817 Utilization of antenna mechanical downtilt has been a tool for radio network planners to optimize networks. Mechanical tilt is used when flexibility in changing the downtilt is desired. The most important conclusion of this study is that there is a large gain in downlink coverage and. Antenna configuration and characteristics Antenna type 742215. The 5G New Thinking (5GNT) DCMS funded 5G T&T project commenced in May 2020, this will be building upon the many achievements and learnings gained from the 5G RuralFirst (5GRF) project Phase 1 and Phase 2, which ran from June 2018 up until September 2019. Additional benefits of patch antennas is that they are easily fabricated making them cost effective. Turning the hex socket in a clockwise direction increases the beam downtilt below the horizon. In mechanical tilt. )Antenna Downtilt for WCDMA 817 Utilization of antenna mechanical downtilt has been a tool 2. If you have no particular preference within a given ham radio band, then simply enter its center frequency (i. Calculations: Antenna Downtilt. Specifications. Collinear VHF antennas with a 12° beamwidth that are installed in high elevations do not cover nearby low elevations. This angle, measured in degrees,. Downtilt Calculator. txt) or read online for free. 2 º Antenna Characteristic Horizon 21. 'm'. An antenna designed to transmit and detect this light would need to be approximately of length (frac{lambda}{2} approx 250 nm). The paper proposes a new antenna design that consists of a perfect-conductor rectangular patch with a quasi H-shaped slot using a flame retardant substrate and an aluminum ground plane. Antenna Downtilt After you enter your parameters (such as access points, antennas, cables, etc. Azimuth values defaults to zero if not specified. Detailed information about broadcast antenna terms. 65 degree , Antenna Azimuth Angle= 153 degree (Sub-satellite point (i. 8e9,0,1:1:360) bw = 57. To clear up a math equation, first identify the problem, then find the simplest way to solve it. This is the easiest and fastest way to control an antenna’s pattern, but the downside is that. Enviado por yaro82. As the antenna is given downtilt, the footprint starts changing with a notch being formed in the fronts while it spreads on the sides. This is certainly a point of difference with other enterprise vendors who are using higher gain omni-directional antennas. These Omnidirectional antennas are ideal for indoor deployments and mobile applications. Electrical Tilt. The most interesting part of the antenna pattern when it comes to tilting. Therefore, the system designer needs extensive studies and testing to find the optimum number of sectors per cell, antenna downtilt angle, antenna height, and required transmit power. 37 km Over Horizon Over Horizon 1 0. 53 - 5. Besides the downward angle, this tool. 3 Vertical beamwidth. It also mentions formula or equations used in these antenna tilt angle calculators. Microstrip Patch Antenna Calculator. Table 3. Click on any RF calculator below to get started. 18 0. The antenna horizontal pattern is fieldadjustable, forany current or future coverage requirements. U. 11 0. This paper focuses on the impact of antenna downtilt for closely placed cells. txt) or read online for free. You are on page 1 of 2. Moreover, we find that a larger antenna downtilt angle is required for a higher deployment altitude. Helical antennas were introduced in 1947. Conical Horn Antenna Gain Calculator. The 5G New Thinking Rural Toolkit (5GNT) is a practical guide for rural and poorly-connected communities who are considering building and operating their own next-generation communications networks. Enter the Height above average terrain Required Down Tilt Coverage Radius Calculator lets you find the inner radius and outer radius based on the height of the antenna and the down-tilt angle. Antenna Downtilt Angle Calculator; Antenna Near Field & Far Field Distance Calculator; Dipole Antenna Length Calculator; Helical Antenna Design 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 directional antenna to reach desired signal strength and coverage between a transmitter and receiver at different heights and some distance away. Antenna Downtilt and Coverage Calculator Pasternack The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to. 0000. ANS Provider Program. Element '38. Reset. Antenna down tilt calculator and coverage tool. 0. Pasternack's Power Density Calculator is designed to give the power density, in Watts per square meter, at a given distance, output power and antenna gain. Hemispheric Antennas and Omnidirectional Radiation Pattern. Attach a wattmeter or SWR bridge to the antenna. (1 GHz = 1000 MHz e. Embed. The Antenna Downtilt and Coverage Calculator (aka Antenna Tilt Angle Calculator) is used to. 7 to 17. Search inside document . 6th Central. 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. Note: The final […]In case of 32 CSI-RS antenna ports our 4x8 sub-array radio can easily implement either 3GPP supported (N1,N2) combination, but two sub-arrays in vertical plane per each CSI-RS antenna port are. hx = helix; [bw,angles] = beamwidth (hx,2e9,1:1:360,0,5) bw = 140. 24 Over Horizon Over Horizon 3 0. com 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. 17 1. Cluster Mounting Kit. 3 (6) 1999-09-29. One major factor influencing the coverage and capacity in mobile networks is related to the configuration of the antennas and especially the antenna tilt angle. 29 Over Horizon Over Horizon 2 0. Specifications. VSWR (pronounced "viswar"), or the Voltage Standing Wave Ratio, is the ratio of the maximum standing wave amplitude at one node to the minimum amplitude at another node in a system. Evaluated and compare impacts of mechanical and electrical downtilt angles of antenna systems to the downlink performance of the 3GPP Long Term Evolution (LTE. A low gain omni antenna provides a perfect coverage for an indoor environment. The main beam of the antenna would be at the horizon. 3. Save Save Antenna-downtilt-calculator For Later. Antenna Downtilt Coverage Radius Calculator. The antenna geometry consists of a 52. Our RF calculators and converters will provide the figures you need for your radio frequency engineering needs. Leave a ReplyCancel reply. The antenna gain must be specified for each of the subbands included in the frequency range of the antenna.