Return loss quantifies the amount of reflected power, while insertion loss quantifies the loss of power as it passes through the component or device. Click on the "Reset" to clear the results and enter new values. Lower VSWR is always desirable for a system. 1) RL dB = 10 log P i P r. The Return Loss formula is defined as is a measure in relative terms of the power of the signal reflected by a discontinuity in a transmission line or optical fiber is calculated using Return Loss = -20* log10 (Reflection Coefficient). This calculator converts values between VSWR, Return loss, Reflection Coefficient and Mis-Match Loss. The relation between return loss, VSWR, and the reflection coefficient provides a comprehensive view of the system's efficiency. [dB] This VSWR / Return Loss calculator allows you to compute corresponding VSWR, Return Loss, Reflection coefficient and Mismatch Loss values for the entered input value and input type. With our crypto investment calculator you can calculate your future crypto profit based on starting investment, additional contributions (daily, weekly, monthly, or yearly), rate of return, and years to grow. The winning percentage would be determined as follows: Number of Wins = Total Games Played - Number of Ties - Number of Losses = 25 - 4 - 5 = 16. Percentage of gain or loss. 04 lb/pint / 24 hrs/day x 1055 BTU/lb. the Net Cash Flow (Profit -. VSWR/Return Loss Converter. 64. Table 1. How to calculate Return Loss using this online calculator? To use this online calculator for Return Loss, enter Reflection Coefficient (r) and hit the calculate button. Manufacturing; Warranty; ANTENNAS . Simply select the asset class, symbol, account base currency, the desired opening and closing prices, the position type and the trade size in lots, and press. 17. Total Investment Fee = (Investment Amount) × (Investment Fee %) ÷ 100. How to use the Futures Calculator. The net profit margin formula. Now, let us investigate the physical meaning of return loss. All investing involves risk, including loss of principal. Input Return Loss Var2. Then you should compute or measure how the 75 source impedance is seen after the lenght of the. Return loss is a measure of how well devices or lines are matched. Follow the steps below to use our simple, free online tool. 1 Return Loss. Spoiler summary : A return loss smaller than -13 dB won’t affect the transmitted signal. Our pros have an average of 10 years’ experience handling even the most unique tax situations. For example, if an antenna RF input/ouput connector has a return loss of 20 dB, it means that only 1% of the power is reflected back and 99% is transmitted. Subtract starting value minus final value. 10 × 100 = 10%. A return loss bridge, at least all the designs I have reviewed, uses conventional electronic components. Convert VSWR to Return Loss and vice versa. It is a ratio. N = current stage. he matched loss of a cable with a characteristic impe-dance, Z 0, is the loss of the cable when it is terminated in Z 0. We can then find the return loss as -20 * log(0. This paper applies the scattering parameters to predict the insertion loss of cascaded cables and channels for the ongoing 40GBASE-T standardization. Impedance mismatches in the cabling cause reflections that are seen as lower return loss. With our tool, you need to enter the respective value for. If the percentage is negative, it. The return on a risk-free asset is used as a baseline to calculate risk premiums, for instance. return loss Calculator. everything RF has the largest selection of online calculators for the RF and Microwave Industry. Return loss is an important new test measurement for local area networks, especially those migrating to higher speed protocols. COM with non-neutral termination impedances is inaccurate 1. November 2023. You can calculate it using the following formula: percentage return = (returned amount - initial investment) / initial investment. These multiple solutions are possible because each contributor is a vector having both. 00 every month, your investment would be worth in if we. RF & Electronics Symbols for Visio. TR = (CV - OV) + E TR = (C V − OV) + E. In electronics, the decibel is most often used to express the. —and calculates both the typical system return loss along with the worst case return loss. When you solve Maxwell's Equations for electromagnetic wave propagation, the electric field solutions look like this: E (z,t) = E * cos (γz - ωt). It is expressed in dB - A high return loss means more power is lost at the load. The formula looks like this: (Underlying price - Strike price) - Premium. For example, to calculate the return rate needed to reach an investment goal with particular inputs, click the 'Return Rate' tab. 00: 0. Return loss can be measured by using microwave and RF test. The VSWR value range from 1. It is expressed in dB. Rule of Thumb #12. Avg. Gain & Loss Percentage Calculator. To use this online calculator for Return Loss of Low-Noise Amplifier, enter Input Impedance (Zin) & Source Impedance (Rs) and hit the calculate button. 97dB. Increasing return loss corresponds to lower SWR. In the field of electronics, the term loss often has a dual but opposite meaning. Waveguide circulators and isolators have by far the best electrical characteristics. Step 2: Choose either the date when you invested or add the purchase price manually. power. Set the open and close price. 954 dB is possible. Substantially Equal Periodic Payments / 72 (t) Calculator. Return Loss. If the power incident on a load is Pi P i and the power reflected by the load is Pr P r, then the return loss in decibels is [1, 2] RLdB = 10 log Pi Pr (7. 405 inch. Total return is the total amount of profit (or loss) an investment. 87. Generally, both retur n loss and structura l return loss of a simple channel are calculated usin g equations that rely on characteri stic impedance and the impedance of the termination only [ 1]. *Strictly, a loss quantity when expressed in dB should be positive. 852. The antenna accepts a certain amount of energy delivered to it by the transmission line (characterized by S11, VSWR, or return loss), and Antenna Efficiency characterizes the amount of energy lost ‘in’ the antenna after this. COM impedances should be moved towards neutral, as explained in D2. Return loss can be. For five t-line sections each having a VSWR of 1. 37 or a 37% gain. Mismatch Loss (dB). A well-publicized way of measuring the matched loss of a cable is to measure the magnitude of the reflec-tion coefficient, | ρ|, SWR, or return loss, RL, at one end when the other end of the cable is either shorted or open. 64. Today's 2G, 3G, 4G and 5G wireless networks are evolving from conventional sites to the top-of-the-tower remote radio unit (RRU) sites. 142 BTU/hr. Return loss of antenna or scan return loss of array, returned as a vector in dB. 0:1). The purchase stock price and selling price determines the stock return – or, in plain terms, how much money you will earn on your transactions. Generally speaking, profit is the incentive behind the majority of business transactions. Return loss is related to both standing wave ratio (SWR) and reflection coefficient (Γ). This calculator uses the following formulas to estimate your potential profits/losses: Profit/Loss Amount = (Investment Amount ÷ Buy Price) × (Sell Price − Buy Price) − Total Investment Fee − Total Exit Fee. Mismatch Loss = -10 log (1 - ρ 2) For example, an antenna with a VSWR of 2:1 would have a reflection coefficient of 0. N = current stage. A negative loss of 0. First, tell us the required basics. Return loss is a meas-ure of how well devices or lines are matched. 9913 and LMR-400 are popular “low-loss” RG-8 types. Advertisement. When return loss is less than ~ –13 dB, insertion loss impact is < 1 db Bogatin Enterprises, a LeCroy Company 2012 Slide -12 Return Loss Ripples Add Some JazzThe return loss is important in communication systems, especially for antennas, as it affects the efficiency of the signal transmission. Simply enter the weightage of the assets and the percentage change expected to estimate impermanent loss percentage. When an ideal match is not encountered by the incident (forward) wave, part of it is coupled to the load and part is reflected back to the source. 8. October 20, 2022. Insertion loss is the measurement of the light that is lost between two fixed points in the fiber. 99 $ = 1-Gamma^2$. For example, to calculate the return rate needed to reach an investment goal with particular inputs, click the 'Return Rate' tab. A typical return loss measurement setup is shown in Video 1. We want a small return, so a large loss on the return “echo” is good. 43 20. VSWR (Voltage Standing Wave Ratio) and Return Loss both measure the same parameter i. Enter values for R1 and R2 to calculate attenuator loss and impedance. 5:1 is considered ideal in the RF field, and. For example, suppose a US$10,000. Profit is the difference between the price and cost when talking about one item. Return loss = -20 * log(Γ) For example, if the VSWR value is 3 : 1, we will first have to find the reflection coefficient's value using it, Γ = 0. This calculator is an easy way to see what returns you could get if you had made this or that investment decision back in the day. 394% gain, when, dividends reinvested, it was more like a 26. You can have low insertion loss but high return loss. 50 (assuming held to expiration) The maximum gain for long calls is theoretically unlimited regardless of the option premium paid, but the maximum loss and breakeven will change relative to the price you pay for the. If you only used the price return of the S&P 500 you'd appear to have made a . and Canada (866) 727-8376 International +1 (949) 261-1920A SIP plan calculator works on the following formula –. Reflection Coefficient. 852. Additional Contribution. Return loss and VSWR are two important measures of efficient power transmission and both of them can be interconverted to obtain the value. Currency of measurement. In summary, return loss is the loss of signal power due to signal reflection or return by a discontinuity in a fiber-optic link or transmission line. com The VSWR/return loss calculator from Pasternack will find VSWR, return Loss, mismatch loss, and the reflection coefficient given any one of the listed input types. How to calculate ROA in Excel? You can calculate ROA in Excel by entering the formula “=Net Income / (Beginning Total Assets + Ending Total Assets) / 2” in a cell, where “Net Income” is the company’s net profit, and “Beginning Total Assets” and “Ending Total Assets” represent the total assets at the start and end of the period. However, convention and some literature quote return loss as a negative value akin to an S (1,1) measurement on a Network. Just enter the value and click calculate. You may also be interested in our League Table Creator or/and Pythagorean Expectation Calculator. Like insertion loss, return loss is also generally described in decibels of power. n is the number of payments you have made. **Note: All of our calculators allow SI prefix input. Return loss in a network is very similar. The MF calculator can help you plan your investments with ease from the comfort of your home or while on-the-go. The calculator will only return data for frequencies below the cutoff frequency of the cable. What is the VSWR ratio to return loss? There is an inverse relationship between Voltage Standing Wave Ratio (VSWR) and Return Loss. This calculation is simply the sum of all worst-case loss variables in the link: Link Loss = [fiber length (km) × fiber attenuation per km] +. Mismatch Loss: Reflected Power Through Power (dB) Coefficient, Γ (dB) (%) (%) 1 17. This online reflection coefficient to return loss calculator calculates the return loss (dB) by entering the reflection efficient Γ (= value between 0 & 1). Power handling may be limited by the connector choice. Every year when you file your income taxes, three things can happen. 5dB loss per 100 feet at 146 MHz). Please check for yourself using appropriate formula. From a certain perspective 'Return Loss' is a misnomer. They can be packaged as planar microstrip components, coaxial components or as waveguide components. One of the simplest yet incredibly helpful calculators is Vanguard S&P 500 calculator. 859 dB or a minimum loss. e. Convert the load VSWR to load return loss per the following equation: RL Improved = 2*Attenuator + RL Load [dB] (where RL=Return Loss) Of course, the method can be reversed to predict the attenuator required to improve a load VSWR by a predetermined amount. Skip to main. From the beginning until the present, he invested a total of $50,000 into the project, and his total profits to date sum up to $70,000. 333, a mismatch loss of 0. From the beginning until the present, he invested a total of $50,000 into the project, and his total profits to date sum up to $70,000. Southwest Antennas offers a number of online RF calculators and conversion tools to help engineers, system designers, and technical salespeople make decisions about their system needs and requirements. •ERL is a figure of merit representing measured return loss (RL) －ERL is a scalar －ERL is the amount of digital signal returned which is statistically reduced to an effective value at the test point. Thus with ~ 25% reflected power: Return Loss = -10 x Log [ 100/25. Yes, we did that without a calculator. 00: Pivot Points. Forex Profit and Loss Calculator: The One-Stop Solution. As technology advances-pumping more data through less spectrum-radio frequency (RF) performance. The calculator calculates the adjustment amount required for both the initial investment and the final value. If the initial value is zero, then no return can be calculated. . Divide that amount by the absolute value of the starting value. Step 1: Choose the fiat currency that you used to trade, exchange or buy Bitcoin. It is thought to be accurate but it is the responsibility of the user to verify the accuracy of the. Source Return Loss Var1. Just follow the 5 easy steps below: Enter the number of shares purchasedVSWR Calculator. Once you know the corporate tax percentage, you can get the profit before taxes and continue estimating your gross income by adding the expected. Alternatively, generate R1 and R2 for a wanted attenuation. Return loss is the negative of the magnitude of the reflection coefficient in dB. Finally, multiply 0. If the power incident on a load is Pi P i and the power reflected by the load is Pr P r,. This Tax Return Calculator will calculate and estimate your 2023 Tax Return. Reflection Coefficient to Impedance Converter Convert a reflection coefficient in Magnitude Angle format into Impedance and vice versa. The return, or rate of return, depends on the currency of measurement. Follow the discussion. 2 to 12. the Gross Return in percentages. The direct method to calculate the return or the holding period return. ”. However, convention and some literature quote return loss as a negative value akin to an S (1,1. For a given transmission line circuit with radiation loss issues, the. Decide if you want to go long or go short. 938 dB. Take the selling price and subtract the initial purchase price. 1 kW = 3412. Lower insertion loss values are preferable, indicating less signal power loss and better component/system efficiency for RF applications. This calculator estimates the impermanent loss when you provide liquidity. 719328 = modulus ( (1. To learn how to reduce your harvest losses, check out the Combine Optimization Tool. Maximum loss (ML) = premium paid (3. VSWR - Return Loss - Γ Conversions These are the standard set of equations for converting between VSWR, return loss, and reflection coefficient (Γ). RF insertion loss is the reduction in signal power as it passes through an RF component or system. 79. Lower insertion loss values are preferable, indicating less signal power loss and better component/system efficiency for RF applications. R L 1. 011. The Smith Chart graphically maps S11=reflection coefficient= (ZL-Z0)/ (ZL+Z0) to Load Impedance (ZL), normalized to Z0 (source impedance = center of chart). 6 dB for port 1, 12. ,100 % power transferred from a source to a load via a transmission line/cable). Finally, multiply 0. It is not uncommon to hear of people who use the 2% or even 3% Rule – the higher, the better. 8 is 80%, or -0. 08-23)/ (1. This investment and stock calculator can be used to estimate how much an investment may grow based on your individual inputs. Q: If a business posts a net income of $10 million in current operations,. Experienced tax pros. Where R is the resistance of conductors per inch. Radio Frequency Engineering Calculator. Please enter your values below. As a most basic example, Bob wants to calculate the ROI on his sheep farming operation. Return Loss is a amount of power that is lost to the load and does not return in to the system as a reflection. You can use the Financer. Alternatively, Generate R1 and R2 for a wanted attenuation. Additional Contribution. 10. Return loss is the measure of how small the “return” or reflection/echo is. Return Loss is a measure of the amount of energy that is reflected back at a discontinuity in a Radio Frequency Circuit . A network analyzer can be used to make S parameter measurements. The return loss is calculated using the formula. This rule of thumb enables us to estimate the maximum amount of return loss allowed for a component like a connector or package. The ratio of a sinusoidal signal reflected back from the load to the incident signal is called return loss. Enter a value for VSWR (remember: VSWR should be a number larger than 1. Return loss specifies the loss that the incident signal experiences as it returns or reflects from the impedance. This is an online calculator that calculates Return Loss based on VSWR. End Amount. 1 Gallon of water = 8. 4 ms—500 forward and 500 reverse samples are collected on each cycle. Radiation losses are frequency, dielectric constant (Dk) and thickness dependent. 4. High return loss means low reflected power, so high return loss is good for a system. Enter one of the three values and the calculator will output the other two. Calculate! Where do these calculations come from? Well, start with the formula for VSWR: If we invert this formula, we can calculate the reflection coefficient (, or the return loss. Your spouse's year end business profit/loss. The term ‘forward power is synonymous with powered deliver to the load, or thru power. How to use the crypt return calculator. Return loss tells you how much of the input signal is reflected. The crypto profit calculator will make it quick & easy for you!. (Profit / Cost of investment) x 100 = ROI. She’ll calculate her share profit using the following steps: Multiply the current stock price by 50 (the number of shares sold): $407. Input return lossThis 2021 tax return and refund estimator provides you with detailed results for Tax Year 2021 (January 1, 2021 - December 31, 2021). The extra loss may be due to intrinsic loss in the DUT and/or mismatch. The following formula relates the return loss and VSWR. You can choose from among three methods to measure the return loss of multimode fiber-optic systems: optical continuous-wave reflectometry, optical time-domain reflectometry, and optical-reflection discrimination. A high return loss is desirable and results in a lower insertion loss. A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission lineRG-8 and RG-213 (50 ohm); and RG-11 (75 ohm) are about 0. So, given that -- I calculate my overall S-parameters (port 1 = input port; port 2 = power meter port): S11=17. Time-Period Basis: An implication surrounding the use of time-series data in which the final statistical conclusion can change based on to the starting or ending dates of the sample data. This bounce back reflection is called “return”. Formula The reflection coefficient for each element is Γ = 10- (RL/20) The cascaded Return Loss is RL = −20*Log10 (√ (Γ12 + Γ22) Reflection coefficient can be. Use any of these 15 easy to use tax preparation calculator tools. 253%% gain. Enter some simple questions about your situation, and TaxCaster will estimate your tax refund amount, or how much you may owe to the IRS. The formula to calculate Return Loss (RL) is: RL = -20 * log10(Pr / Pi) Where: RL = Return Loss (dB) Pr = Reflected Power (W) See full list on allaboutcircuits. 891: 6. A high return loss is desirable and results in a lower insertion loss . 0:1, 2. 57. 08+23))^2. 5), which will give us. 1, for system 2 is 0. Let’s use some of these numbers in the calculator. Useful converters and calculatorsOctober 3, 2023 by GEGCalculators. Tax-loss harvesting involves selling assets at a loss, with the intention of repurchasing similar assets at a later date. A match is good if the return loss is. VSWR/Return loss converter Wavelength calculator Wilkinson splitter designer. Single-ended S-parameter insertion loss characterizes the frequency dependence of signal loss in the device under test, which is single-ended and unbalanced. 7. Generally, both retur n loss and structura l return loss of a simple channel are calculated usin g equations that rely on characteri stic impedance and the impedance of the termination only [ 1]. If you wish to calculate your profit with a more advanced calculator to include the. Free Online Engineering Calculator to quickly convert a Return Loss (dB) into a VSWR. But each business is different and the amount of business loss you can claim on your tax return depends on your business type, the amount of risk you have in your business, and other. 99 $ = 1-\Gamma^2$ Thus, for this system, VSWR = 1:1 (i. In no event will Qorvo be liable to any user of these tools for any loss or damages, including without limitation, indirect or consequential damages arising out of or associated with the use of these tools. Calculate. Return Loss and Mismatch Loss Calculator Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load. With our crypto investment calculator you can calculate your future crypto profit based on starting investment, additional contributions (daily, weekly, monthly, or yearly), rate of return, and years to grow. Please enter the value. Optical return loss is given in units of dB and always a negative value for passive optics, with values closer to 0 representing larger reflections (poorer connections). The number 20 then needs to be divided by your starting weight, the result of which is 0. Enter dB Loss Of Cable Per 100 Ft. Just type the currency name in the search field. You have lost 10% of your starting weight. Working with an adviser may come with. Thus, your percentage return on your $10 per share investment is 70%. Learn the difference between return loss, mismatch. 00 today and contribute additional $ 100. Click the “Calculate Return Loss” button. Gain Var5. 10. You cannot simply add up or sum the responses of all the individual components to calculate how the larger structure will behave. 5 × 100% = 50%. It is specified in decibels (dB) relative to a short circuit (100 percent rejection). Asset 1 Price Change. One ton equals 12,000 BTUs, so if a house or office needs 24,000 BTUs, it will take a 2-ton HVAC unit. Step 3: Finally, the profit for the given amount will be displayed in the output field. It also estimates a percentage of current balance required to get to the breakeven point again. RG-8 and RG-213 (50 ohm); and RG-11 (75 ohm) are about 0. 02 (the selling commission): $20,368 x . Now there are two conductors in a PCB transmission line – the signal trace and the return path. Coax Cable Loss / Antenna Gain Calculator . As we know that the reflection coefficient defines the amount of the electromagnetic wave is. 55 for an ROI of 14. This calculator converts Return loss (RL) to Voltage Standing Wave Ratio (VSWR). The IPC-2141 trace Impedance calculator will help make initial design easier by allowing the user to input basic parameters and get a calculated impedance according to the IPC-2141 standard. The reflection coefficient is another measure which is closely relate…Return Loss and Mismatch Loss Calculator Calculates the absolute load impedance, reflection coefficient, VSWR, return loss and mismatch loss of a load. You can calculate your total profit by subtracting the premium you paid for the option from the sale price of the stock. 57. The results are only estimates however, as various other factors can impact your tax outcome. Typically, Insertion loss will of a fraction of a db (for co-axial cable) and the Return loss is 10 dB or more. Use our free income tax calculator to quickly estimate whether you'll receive a refund or owe the IRS. 54dB. Active return loss and mismatch calculator with results for absolute impedance, return loss, VSWR, reflection coefficient and mismatch loss. Note that the present tool allows you to find the annual rate of return from an investment, with the option to. i. The VSWR display in the right graph measures the same antenna and the amplitude scale has been setup to match the scale of the Return Loss measurement. Note that it blows up at the lower cutoff frequency of 6. Return loss is a measure of how well devices or lines are matched. 9) ∗ A ( 0. VSWR Calculator. Radio Frequency Engineering Calculator. The coupler will reduce the outgoing and reflectance power levels by 3 dB plus some loss due to its inefficiency, typically ~ 3. $70,000 - $50,000. total power reflected (B) from both. everything RF has the largest selection of online calculators for the RF and Microwave Industry. This is an online calculator that calculates Return Loss Calculator. Adicot, Inc. Hence, the return loss is always lower than the ideal system (i. Winning Percentage = (2 × 16 + 4) / (2 × 25) × 100 = . 5), which will give us 6. Return loss can be measured by using microwave and RF test equipment such as a signal generator, directional coupler along with a spectrum analyser or power meter, or alternatively by using a vector network analyser. VSWR = Voltage standing wave ratio. Enter the source characteristic impedance and the load impedance then press "Calculate" below. VSWR/Return Loss Converter. It is a natural phenomenon that occurs for any type of transmission—whether it's electricity or data. Last Updated Date: Nov 17, 2022. Dual Dielectric Coax Calculator. They are related but measure different aspects of signal performance. Where, RL = Return loss in dB. VSWR. The loss to commission formula is straightforward, the tool merely does this calculation: The tool computes your net stock return on investment using this formula: net return on investment (\%)=frac {sale proceeds-sale commissions} {cost basis+buy. 1 Channel Loss Budgets Page 2 1 Introduction 1. A01TKL_ RF Inductor by Coilcraft →. For VSWR=2, reflection coefficient will be=1/3 and 20log (1/3) =-9. 04 dB. 08+23))^2. 2. Return to risk; 0. 20 / 200 = 0. This mix of web-based tools and downloadable Windows software was developed to help engineers design faster and more accurately. Standing waves form when there is a mismatch between the line and the load, and is generally undesirable. For tax years beginning in 2021 and continuing into future years, you can take a loss up to $262,000 if you are an individual or $524,000 for a joint tax return. It is equal to the Before Tax Cash Flow (BTCF) divided by the sum of all out-of-pocket acquisition costs (down payment, closing costs, etc. This engineering design tool provides a quick and accurate determination of IL at any specific frequency and allows comparison of multiple designs on the same screen. Return loss is a measure of how well devices or lines are matched. where, Z = input impedance of antenna or scan impedance of array. Reactance Calculator. When planning your trade, it is important to understand the potential profit or loss of a trade. 9) ∗ A. 01. 08-23)/ (1. Because the reflection coefficient Γ < 1, then the return loss will have a positive dB value. ROI may be positive or negative. It also calculates the return on investment for stocks and the break-even share price. In either case, the resulting VSWR is 1. Several sources say that return loss bridges have high insertion loss. Subtract any salvage value. VSWR is defined as the maximum voltage of the standing wave (E max) to the minimum voltage of the standing wave (E min ). The cable Loss consists of conductor wire loss. The 10-year gilt yield rose just over 2% from 1 January to 30 September that year (Data. To convert the cash ROI to a percentage, multiply it by 100. 05:1 it calculates a VSWR of 1. Cascaded Output IP3: O i P 3 C = 1 1 I P 3 N − 1 ⋅ G N + 1 I P 3 N [ m W] I P 3 C = 10 ⋅ l o g ( I P 3 C) [ d B m] C = cumulative up to and including stage N. Returns Calculator. Each tool is written in Javascript. Follow the following steps to calculate crypto profit/loss: Step 1: Choose the fiat currency that you used to trade, exchange or buy cryptocurrency. To use the calculator below, input a values into the fields and hit the enter key. Try it out; 🇨🇦 Support for Canadian MX options – Read more; More updates. Insertion loss is only defined for two port networks, but you could bastardize the definition. Return loss vs. Here's a simple VSWR calculator. This general RF calculator includes calculations of path loss, VSWR and wavelength as well as conversions between many common terms used in the wireless industry. Pout is the output power or signal level.