As you adjust the width of the line, you can eventually get the microstrip impedance calculator to converge on. Does not take into account atmospheric dispersion or absorption. com, 866-727-8376 US and Canada or +1-949-261-1920 International). Theoretical margin = TX power budget + RX power budget - free space loss. 06 29. Pasternack spectrum and VNA network analyzer cables, SOLT. Bulk quantities shipped same day. Our step attenuators are available in 50 Ohm and 75 Ohm impedance. L, S, C, X, Ku, K, and Ka Band Operation. Easy-to-use tools from complex mathematical formulas to simple conversions. Stripline Impedance Calculator – Cables, Coaxial. RF Couplers from Pasternack Enterprises ship same day. The calculator supports All groupers. Calculation Distance: Frequency: Transmitter Gain (dB): Receiver Gain (dB): Result:. I found a table of dielectric constants for a long list of chemicals, of which Delrin (polyacetal resin, also known as acetal or polyoxymethylene) is listed as polyacetal resin. 35 degrees, Aperture= 5. Pasternack Publishes New RF Calculators and Conversion Tools to Pasternack. x Start Chat. 7 GHz to 40 GHz. The link budget is an important value that enables engineers to design systems based on the required sensitivity of a receiver at a. PE8327 coaxial SMA isolator is one of over 40,000 RF, microwave and millimeter wave. Calculates the Free Space Transmission Loss (FSTL) between two antennas based on: Transmit power. Find Dr. Link budget feasibility to. When in doubt, use 1 for copper, . You may enter custom values, or choose from a list of commonly used materials. 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. Bookmark or "Favorite" this inductance reactance. 3. 0 GHz;I'm unsure if the reference plane would be the GND and the PWR layers. If only two terminals are used, on. Expert technical support and friendly customer service personnel are always here to assist you. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. com, [email protected] step (for AC), then press the Calculate button to get the result in volts (V). 10 -3. IRVINE, Calif. Free space loss = 36. The tee (T) attenuator (pad) formula in the calculation for resistor values is measured in Ohms. Hits: 6396. 5 dB and an isolation 22 dB. Pad Attenuator (Pi & Tee) Calculator - Obtain the resistor values of a Pi and Tee attenuator based on impedance and attenuation inputs. It is also relatively straightforward to calculate the inductance per. Once you input two parameters, the calculator will calculate the remaining one and display the result. 1 small frozen banana, chopped. The Pasternack facility certified to ISO 9001:2015 ships all bias tees / bias Ts from stock the same day you order them. Pasternack Enterprises, Inc. 3 dB, Beamwidth= 0. Easy-to-use tools from complex mathematical formulas to simple conversions. About Us. PI Attenuator Calculator. 4mm, 2. This is (more or less) right at the HF antenna input and it can be adjusted to. Pasternack's Microstrip Calculator computes a microstrip's height/width ratio, impedance and relative dielectric constant for a microstrip transmission line. Pasternack Introduces New Series of Low PIM Cable Jumpers. Result. **Note: All of our calculators allow SI prefix input. Pasternack Introduces New Lines of Attenuators and RF Loads Operating to 65 GHz. where again: d is the distance between the antennas; f is the signal's frequency; and. As an example, If I want to meet the 80Ω diff/ 40Ω single impedances, taking the first inner signal layer, and using the Saturn Edge Coupled asymmetric calculator, the input would be: H2= 180um H1= 176um w = 0. Coax Attenuation Chart – W4RP Coax Cable Signal Loss (Attenuation) in dB per 100ft* Loss* RG-174: RG-58: RG-8X: RG-213: RG-6: RG-11: RF-9914: RF-9913: 1MHz: 1. How Far will 5G Reach? OneSDR is reader-supported. 2 meter Antenna frequency = 6 GHz Output Gain (dBi) = 47 Antenna Gain Calculator Equation. Our SMA Male to. 7 GHz. 03 34. Unfortunately, differential impedance calculators fall short in this particular area, as well as several others, which I'll explain below. Same-day shipping if you order in the next hours!Pasternack Enterprises, Inc. Following table provides links to useful Wireless converters and calculators. 8/20/2014. The above formula is to calculate the gain of a parabolic dish antenna where: D = The Diameter of the Dish. Pasternack’s bias tees have maximum voltage ratings between 24 and 100 volts. September 9, 2014. Return Loss and Mismatch Loss Calculator. com, 866-727-8376 US and Canada or +1-949-261-1920 International) Try our Parametric Search →. This RF budget calculator calculates power received at satellite receiver and free space path loss . 8/5/2014. The substrate parameters (ε r and h) are required. To do that, we should use the following formula instead: FSPL (dB) = 20 * log10 (d) + 20 * log10 (f) + 20 * log10 (4π / c) - GT - GR. Pasternack Enterprises Inc. **Note: Like our bridged tee calculator, all of our RF calculators allow SI prefix input. Isolators are made of ferrite materials and. G t = Gain of the Transmitting Antenna. Please note that this. The required inputs are the Dk value for the dielectric constant of the PCB substrate, and the. Irvine, CA - Pasternack Enterprises, Inc. Refer following calculators on microstrip line useful for various calculations. By understanding the microstrip transmission line, designers can. 8376 p aster . com. Pasternack RF Coaxial Cable Impedance Calculator with Formula Our coaxial cable impedance calculator allows you to enter the outer diameter dielectric width, Inner. You can use it for planning your RF links with our pulsAR Wireless Ethernet Bridges, or with other radios in any frequency band. Description. The inductance, reactance and admittance calculator from Pasternack finds these results given the operating frequency and either the inductance or the reactance as per the formula. RF Calculators & Converters. These equations are. com. A total of 27 RF. Antenna -> PSA4-5043+ LNA, +20db wide band, NF less than 1db -> Band pass filter, usually made or chosen (if bought) to be as narrow as possible for the application -> PSA4-5043+ LNA -> +30db LNA made from removing filter and patch from an active GPS -> Downconverter if S band -> Airspy Mini SDR. The noise figure number, displayed in decibels (dB), represents the performance by which an amplifier or RF receiver can be measured. Our Headquarters. Today, Pasternack continues its mission to provide users of RF and Microwave components and cable assemblies the. For example, if you wish to input "25000000", just type "25M" instead. Enter your cable length and click “Create My Cable Assembly”. Collection by . See the quick-reference table below for all compatible SI prefixes. **Note: Like our microstrip line impedance calculator, all of our RF calculators allow SI prefix input. Microstrip line impedance calculator Microstrip Mitred Bend calculator Microstrip Width calculator dBm to Watt converter Stripline Impedance calculator Microstrip line impedance Antenna G/T Noise temp. com. The substrate parameters (ε r and h) and the frequency of interest are required. Standard gain horn antennas from Pasternack are ordered with a waveguide to coax adapter attached to it, known as a connectorized horn antenna. The Link Budget accounts for all factors that affect the transmission of a signal which would include gains and losses from amplifiers, the transmitter, various mediums, up to the sensitivity of the receiver. Please note that this calculator is only valid for far-field calculations. For example, if you wish to input "25000000", just type "25M" instead. Expert technical support and friendly customer service personnel are always here to assist you. The RX-888 (Mk2) has two mechanisms for adjusting gain and attenuation: The PE4312 attenuator . Step 4: Calculation of the length extension ΔL. Pasternack Introduces New Lines of Attenuators and RF Loads Operating to 65 GHz. It is a value that is dependent on the distance, frequency and the gains in the system. Pasternack Enterprises (Irvine, CA), a manufacturer and supplier of RF, microwave and millimeter wave products, has created. See the quick-reference table below for all. Visit Pasternack's RF amplifiers page for product details. Pasternack LMR-400-DB flexible coax cable is 50 Ohm and has a PE (F) dielectric. The new RF calculators and converters include link budget, coax impedance, RF power conversion. In 1880 there was 1. 0 80W +48 58. For this reason, there are two possible solutions to the value of the resistors used, one larger than the system impedance and one smaller. Instructions are below the calculator and don’t forget we can make and test your controlled impedance printed circuit boards too. Overview. D is the inside diameter of the coax cable shield,. com, techsupport@pasternack. Coaxial Cable Impedance Calculator. Welcome to Pasternack's RF Institute. Feb 12-Jul 12, 2024: RF Certifications Online, Besser Associates Online Academy. USB controlled RF component software download from Pasternack. Our manufacturing facility certified to ISO 9001:. **Note: All of our calculators allow SI prefix input. 01 40. **Note: All of our calculators allow SI prefix input. If the dielectric constant of the material is not known, you can choose to put in the velocity of. Rho: Conductor resistivity relative to copper. com. Link Budget Calculator provides a signal loss and gain budget based on the user-defined link availability required given as a percentage of time due to path fade statistics. WR-28 to WR-430 sizes available. (sales@pasternack. For example, PCB copper plating thickness. com focuses on products and tools developed by Silicon DSP Corporation for Radio Propagation in Irregular Terrain as well as Propagation through the Ionosphere. Pasternacks's Power Ratio Conversion Calculator converts from a power output-input ratio to a dB ratio. com, 866-727-8376 US and Canada or +1-949-261-1920 International). Centered Stripline Impedance Calculator. **Note: All of our calculators allow SI prefix input. 24 km) Transmit Power:Pi attenuator (Pi pad) is a specific type of shape attenuator circuit similar to the Greek letter "Pi" (PI). 4dB: 0. Ⅰ IntroductionA potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider, also commonly known as a pot. This could be a transmitter signal chain, receiver signal chain, or really any RF system. Coplanar Waveguide With Ground Characteristic Impedance Calculator. See the quick-reference table below for all compatible SI. Relative Dielectric Constant ( εr ): Track Width (S):. RF calculations and RF conversions include metric. Pasternack Releases New High Isolation RF Switches. Bookmark or "Favorite" this bridged tee attenuator calculator page bypressing CTRL + D. Matching Pi Attenuator Calculator. Our waveguides are low loss transmission lines capable of handling high power with high isolation. 5 GHz. Our RF and microwave calculators and converters will provide the figures you need for your radio frequency engineering needs. Inputs. On the other hand: that's more power out than in! What that's telling you is that you will never have path loss as low as 30 dB and a pair of 24 dB gain antennas at the same time. We maintain inventory of more than 35,000 products that are always available and in-stock which gives you access to products ranging from the rare, hard-to-find specials to. But I'm unsure if the Height I entered is. Calculator. In the case where the wave is linearly polarized, r_T tends to infinity and the above formula cannot be used. It calculates the required shunt. Start by choosing the number of stages. The inductance, reactance and admittance calculator from Pasternack finds these results given the operating frequency and either the inductance or the reactance as per the formula. 7/21/2014. 151 1. The only. These series of step attenuators are available with BNC connectors and include RF dB attenuation values that range from 1 dB to 110 dB. (sales@pasternack. LMR-400-DB coax has a shield count of 2, a RF shielding of 90 dB and the maximum frequency for this Pasternack cable is 6 GHz. A beautiful, free online scientific calculator with advanced features for evaluating percentages, fractions, exponential functions, logarithms, trigonometry, statistics, and more. Result. 07 28. Pasternack’s new RF calculators and RF conversion tools are now live on the company’s website. 444 1. What a Differential Pair Impedance Calculator Misses. hT h T = height of the transmitting antenna. Mismatch Loss (dB) 3. This can be especially felt in the. Enter VSWR, Reflection Coefficient, or Return Loss to calculate remaining values. **Note: All of our calculators allow SI prefix input. com, techsupport@pasternack. 10 -3. Frequency ratings for our RF dividers range from DC to 26. Wavelength: The wavelength is the distance between two consecutive points on a wave. The Pasternack wavelength calculator Transverse Electromagnetic Mode (TEM) allows you to determine the wavelength (in millimeters) inside a rectangular waveguide. These Pasternack panel antennas and patch antennas are part of over 20,000 in stock products. S. 086 Semi-rigid Coax Cable with Copper Outer Conductor ships worldwide from the Pasternack facility on the same day as purchased. Alternatively, Generate R1 and R2 for a wanted attenuation. More details for PE2092 can be seen below. Pasternack's RF calculators and conversions section provides. to NF. The Pi attenuator consists of a series resistor and two parallel resistors, which are grounded at the input and output. comIrvine, CA – Pasternack Enterprises, Inc. IEEE defines it as "The loss between two isotropic radiators in free space, expressed as a power ratio. 727 p asernaom 50 Ohm Conversion Table dBm V Po dBm V Po dBm mV Po dBm µV Po +53 100. 8/5/2014. Pasternack’s new RF calculators and RF conversion tools are now live on the company’s website. 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. Exceptional customer service and technical support are on hand to support our customers. 946 for silver, or 1. You can use it for planning your RF links with our pulsAR Wireless Ethernet Bridges, or with other radios in any frequency band. PHOTO CREDIT: Harley Pasternak, The Body Reset Diet: Power Your Metabolism, Blast Fat, and Shed Pounds in Just 15 Days INGREDIENTS: 5 raw almonds. This parameter is used for the loss calculations. 6-3. Each type of planar transmission line exhibits different dominant transmission modes, max frequency, characteristic impedance range, and unloaded Q. For example, if you wish to input "25000000", just type "25M" instead. A leader in RF cables, adapters and connectors since 1972, Pasternack Enterprises is an ISO 9001:2008 certified manufacturer and international supplier of RF, microwave and fiber optic products. This calculator helps you calculate the characteristic impedance of a coaxial cable given its dimensions. G t = Gain of the Transmitting Antenna. ) Q: What is the radiation pattern of the microstrip. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus much more. The frequency range of our step attenuators is from DC to 2 GHz and includes low to high power attenuators which have the power handling up to. 8/20/2014. This is a valuable tool for clinical decision-making, offering the prospect of tailoring diagnosis and therapeutic interventions to each patient’s molecular profile. For example, if you wish to input "25000000", just type "25M" instead. Not seeing the answers to the radio frequency questions you have? Contact the Pasternack tech support and/or sales teams for solutions to your RF, microwave and mmWave needs. has held the reputation of being an industry leading ISO 9001:2008 manufacturer and global supplier of RF and microwave products. Pasternack's RF Calculators and Conversions section provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions. Most of these new surge protectors are IP67-rated for outdoor. This can be set to zero, but the calculated loss will not include conductor losses. For local technical support and to purchase attenuators in Indonesia, please contact Precision Technologies PTE LTD. RF Power Density Calculator with [email protected] coaxial cable, along with the balanced two-wire, is the most common type of transmission line used in RF communications. where. From Pasternack's microstripline calculator and the test way above: 50 Ohm stripline on 1. 5dB: 0. F = Pattern Propagation Factor. 2) gives the power delivered to a conjugate-matched receiver in response to a distant transmitter, assuming co-polarized antennas and free space conditions. Link 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). dBμV − 60 = d B μ V − 60 =. The microstrip calculator determines the width and length of a microstrip line for a given characteristic impedance (Zo) and electrical length or vice versa. Get more. Pasternack PE300 SMA male to SMA male cable assembly is constructed with 160 Series coax. The free space path loss calculator takes into account the gain on both the receiving and transmitting antennas. Pasternack Enterprises (Irvine, CA), a manufacturer and supplier of RF, microwave and millimeter wave products, has created and published a new set of RF calculators and conversion tools to assist engineers in answering complex RF-related product and design questions that may arise on a daily basis. 6, Dielectric Height is 0. The microstrip patch antenna calculator determines the length (L) and width (W) of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. Leaning on the Law of Conservation of Energy, all of the signal energy injected into a signal chain needs to go somewhere. com, 866-727-8376 US and Canada or +1-949-261-1920. The microstrip patch antenna calculator determines the length (L) and width (W) of a rectangular microstrip patch antenna for a given resonant frequency or vice versa. It includes a Coaxial Cable Loss Calculator with pre. Our fixed RF panel and patch antennas have gain values ranging from 7 dbi to 23 dbi and some models have built-in dual band cellular capabilities. Pasternack. Here's how: Select your connectors and cable type using the parameters listed below in any order you prefer. Pasternack's Free Space Path Loss Calculator calculates the loss (in dB) between two antennas where the gain, distance and frequency are known. Pasternack Releases New High Isolation RF Switches. . Patch antenna online calculator. It also helps to determine, at the receiver. Pasternack Releases New High Isolation RF Switches. By understanding the microstrip transmission line, designers can. Historically, surnames evolved as a way to sort people into groups - by occupation, place of origin, clan affiliation, patronage, parentage, adoption,. Access the. RF & Microwave Calculators Advertisement. G (Tx) = The Gain (dBi) of the Transmitting Antenna. For local technical support and to purchase waveguides in India, please contact Spur Microwave Inc. The balanced attenuator calculator from Pasternack allows you to determine the resistor values (R1) measured in Ohms. This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator. Pasternack Introduces New Lines of Attenuators and RF Loads Operating to 65 GHz. inductor or choke on the design stage. About Us. ([email protected]. Step 1: Calculation of the Width (W) -. For example, if you wish to input "25000000", just type "25M" instead. Created Date: 2/21/2013 3:44:44 PMOn the one hand: just add the numbers. **Note: Like our stripline impedance calculator, all of our RF calculators allow SI prefix input. The free space path loss calculator takes into account the gain on both the receiving and transmitting antennas. Calculator normalises all distances to miles and feet during calculations. and a transceiver, allowing the receive signal to come from the antenna (port 1) to the receiver (port 2) while theExpert technical support and friendly customer service personnel are always here to assist you. Pasternack's RF calculators and conversions section provides engineers valuable and easy-to-use tools ranging from complex mathematical formulas to simple conversions. , a manufacturer and supplier of RF, microwave, and millimeter-wave products, has created and published a new set of RF calculators. λ = The wavelength of the Antenna in meters. Pasternack Enterprises. Pasternack's unit of measure conversion calculator allows you to convert common metric and standard values, such as length, power, temperature, torque and weight (mass) measurements. USA & Canada (866) 727-8376 International +1 (949) 261-1920. 8/20/2014. Pasternack's CRA Calculator finds capacitance, reactance, and admittance given the operating frequency and either the. This page contains a mixture of web-based tools and downloadable Windows software. This is based on the height, dielectric constant of the dielectric and the calculated width of the patch antenna. Welcome to Pasternack's RF Institute. The Pasternack family name was found in the USA, and Canada between 1880 and 1920. Title: 2 Way N Wilkinson Power Divider From 690 MHz to 2. Calculates the bandwidth of a digital signal and maximum trace length, using the IPC-2251 method or the frequency domain method, for transmission line effects. 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. Try them out and let us know what you think at tool-feedback@qorvo. RadioCalc. The FRIIS path loss calculator is an important tool for. In both cases, you’ll need to enter your stackup information into the calculator to get accurate results. com, 866-727-8376 US and Canada or +1-949-261-1920 International). 417 1. P refl = Reflected signal from target . Our RF and microwave calculators and converters will provide the figures you need for your radio frequency engineering needs. 0 200W +50 70. has held the reputation of being an industry leading ISO 9001:2008 manufacturer and global supplier of RF and microwave products. d is the diameter of the inner. There are some advantages to using a microstrip transmission line over other alternatives. The Coil32 for Android and the cross-platform Coil64 makes it possible to calculate the self-capacitance and Q-factor of the. Pasternack. This will also provide the time delay the cable provides for a signal and also the capacitance and inductance per. Pasternack carries a huge selection of microwave parts, RF parts, cables, connectors, modulators, adapters, attenuators plus. , an industry-leading manufacturer and supplier of RF, microwave and millimeter wave products, has created and published a new set of RF calculators and conversion tools to assist engineers with answering complex RF-related product and design questions that arise on a daily basis. Pasternack's Balanced Attenuator Calculator allows you to determine the Resistor values (R1) for a balanced attenuator (measured in Ohms). For example, if you wish to input "25000000", just type "25M" instead. 1 red apple, unpeeled, cored, and chopped. 658 1. Friis Path Loss Calculator Formula: Path Loss = 10 Log $(4 πd / λ)^2$ - GT(dBi) - GR(dBi) Where, GT = Gain of Transmitting Antenna. Our free impedance calculator for coplanar waveguide can help you with your design features to ensure your PCB is working as you intend. everything RF has built a calculator for this – Click here to calculate the Free Space Path Loss. Parabolic antenna calculator example: INPUTS: Frequency = 14. hR h R = height of the receving antenna. This type N load / coax terminator is manufactured with no. Provide the value of the inductance (nH) or reactance along with and the frequency of operation (GHz) in the equation. You may enter custom values, or choose from a list of commonly used materials. , an industry-leading manufacturer and supplier of RF, microwave and millimeter wave products, has created and published a new set of RF calculators and conversion tools to assist engineers with answering complex RF-related product and design questions that arise on. Exceptional technical support and customer service are on hand to assist our customers with type N connector questions. PFD Consiltator can be downloaded here. Pasternack Introduces New Series of Low PIM Cable Jumpers. Pasternack Publishes New RF Calculators and Conversion Tools to Pasternack. N-Way Power Divider Calculator Pasternack. A group of engineers at Pasternack developed 27. Description. 02 36. 7 GHz Rated at 10 Watts PE2092 from Pasternack Enterprises is available for same day shipment from our Irvine, CA location in the United States. x Start Chat. The calculator is set up to handle an asymmetric arrangement, where traces are not centrally located in the PCB layer stack. 866. This is a valuable tool for clinical decision-making, offering the prospect of tailoring diagnosis and therapeutic interventions to each patient’s molecular profile. N Connectors from Pasternack Enterprises ship same day. RF circulators are also unidirectional, but circulate the flow of energy from each port to its clockwise adjacent port. /. SMA Male to SMA Male Cable Using PE-P141 Coax from Pasternack will ship on the same-day. Reach out to us. This antenna coverage and tilt angle calculator also provides, given a beam width, the inner and. The PE2088 from Pasternack is a 50 Ohms, wilkinson, 2 way power divider which operates from 690 MHz to 2. Link budget feasibility to. Our broadband waveguide horn antennas have frequency capabilities ranging from 1. See the quick-reference table below for all compatible SI prefixes. Pasternack is a Infectious Disease Specialist in Boston, MA. Pasternack Enterprises, Inc. The calculator is set up to handle an asymmetric arrangement, where traces are not centrally located in the PCB layer stack. The waveguide portion of the standard gain horn is manufactured of aluminum. Uncheck "Select" box to remove a parameter. 7 Antenna Diameter = 4. P r = Power returning to the Receiver Antenna (1-way radar equation). INPUTS Dielectric Constant, Ε r: Trace Width, w in mils : Trace separation, d in mils : Trace thickness, t in mils : Dielectric thickness, h in mils : OUTPUTS Characteristic impedance in Ohms : Differential microstrip impedance in Ohms : *Note: This calculator is valid for (W/h) in range from 0. In telecommunication, the free-space path loss ( FSPL) (also known as free-space loss, FSL) is the attenuation of radio energy between the feedpoints of two antennas that results from the combination of the receiving antenna's capture area plus the obstacle-free, line-of-sight (LoS) path through free space (usually air). See the quick-reference table below for all compatible SI prefixes. 14. RF dB attenuation values for these Pasternack fixed attenuators range from 0 dB to 60 dB. σ = Radar Cross-section or Scattering co-efficient of target. Pasternack Introduces New Series of Low PIM Cable Jumpers. Visit Pasternack's RF coaxial attenuators page for product details. About Us. Following table provides links to useful Wireless converters and calculators. dBV. Height: Height of the substrate. Step 3: Calculation of the Effective length. SMA connectors from Pasternack are available in straight, radius right angle or right angle versions, as well as, press in, bulkhead, 2 hole panel, 4 hole panel or mountless. Enter the power in watts (W), current in amps (A), select power factor (PF) from 0 to 1 with a 0. Pasternack Introduces New Series of Low PIM Cable Jumpers. dBμV − 120 = d B μ V − 120 =. In addition, we will focus on transmission line network modeling ( matching networks. The new RF calculators and converters include link budget, coax impedance, RF power conversion (such as dBm to Watts), attenuation, frequency, wavelength,. Our pi attenuator calculator is designed to aid you in calculating the correct values of the resistors R1 and R2, according to the diagram below. 318 1. This calculator of resistor values for a balanced RF attenuator design is easy to use and can be found below. Pasternack's Friis Transmission Equation Calculator is a path loss calculation measurement tool that calculates the received power from an antenna at some distance given a transmission frequency and antenna gains. Transmit and receive antenna gains (Gtx & Grx).