As i only need this about once a year it is not worth buying some of the bells and whistles type software packages that charge a yearly licence fee. Midians intermod calculator is pcbased intermodulation study and intermodulation calculator software that tests for the possible occurrence of intermodulation. Minimum channel and imd spacing in the entered device frequencies. Intermod assist is a new, groundbreaking software tool specifically designed for the wireless, professional audio and video industries. Fintermod calculates rf and optical intermodulation products. This software tool specifically designed for the wireless, professional audio and video industries.
The license type of the downloaded software is trial. Though this much is helpful, the technician gets little other assistance from the program. Radio mobile rf propagation simulation software on. The various other vendors often permit their dealers to sell the software online i.
Intermodulation interference calculations in the landmobile. The intermod product calculator programs that one finds today generally just do. Intermodulation radio mobile rf propagation simulation software. It is available as a standalone pcbased software product or as a plugin option for the invisible wavestm rf command center. Free calculator software moffsoft freecalc is a great. Intermod assists computational engine rapidly generates frequency sets of intermodulation distortion free radio frequencies, applying userdefined signal bandwidths and channel spacing. I have been using your program for over two years battling im in the crazy world of vhf high band land mobile radio systems for public safety users. Calculate intermodulation products from 2 and 3 frequencies.
Midian electronics intermod calculator software downloads. Up to transmit and receive frequencies can be entered with a frequency. Radio mobile rf propagation simulation software online. Sometimes referred to as spurious emissions, these newly. Excel spreadsheet with four tabbed calculator sheets. Unlimited calculated intermodulation frequencies output with order of 2 and higher. Intermod assists computational engine rapidly generates frequency sets of intermodulation distortionfree radio frequencies, applying userdefined signal bandwidths. As i only need this about once a year it is not worth buying some of the bells and whistles type software packages that charge a. Rf intermodulation calculator rf intermodulation formula,equation. Jun 30, 2016 intermodulation with wireless microphones 3 key points.
Radio tools and utilities for amateur radio operators category is a curation of 74 web resources on, attendance management system, ham radio fonts slash zero and morse, qso relay. Intermodulation interference calculations in the landmobile service 19952007 scope this recommendation serves as a basis for the calculation of a maximum of three intermodulation interference that are created at the output of a receiver under influence of intensive unwanted signals at. The intermod product calculator programs that one finds today generally just do bruteforce number crunching. Its computational engine rapidly generates frequency sets of intermodulation distortion free radio frequencies, applying userdefined signal bandwidths and. Intermod assist intermodulation calculator and rf frequency coordination. Finding, solving and preventing intermodulation problems. To obtain motorola software see the sticky in the motorola forum. The fcc mandates that antenna owners or licensees must ensure that the rf signal from their sites does not interfere with any existing signals from other carriers, public safety, etc. Intermodulation is a source of interference that arises from the combination of two or more signals at different frequencies in some kind of nonlinear system. After the 7 day evaluation period has expired, you will be required to purchase a user license to continue to use this product. Professional wireless systems is a leader in the wireless audio industry. Enter your tours equipment list and recalculation for the next event is completed within minutes. Thank you for downloading fintermod from our software portal.
Testdisk is a powerful free data recovery software. The file size of the latest installer available for download is. Here is a brief list of fintermod users over the past 20 years. Intermod assist intermodulation calculator and frequency coordination software is a unique tool it will change the way you approach the problem of intermodulation interference and the challenges of frequency coordination and channel assignment. Download free and secure calculators software and apps for office. Typically each series or individual radio requires its own software package. Moffsoft freecalc is the ideal replacement for your standard windows calculator with adjustable size, visible memory value and digit groupings, this free calculator software is a simple and intuitive tool. Radio mobile is propagation simulation software free to the amateurradio community. Sifm is the sennheiser software for rapid calculation of intermodulation free radio frequencies for wireless microphone systems. Without f intermod, it would be, literally, shooting in the dark. Spectrum analyzers scanners rf explorer amazon search ebay trunktracker3 antenna amplifier shure ua830usv inline antenna amplifier passive rf splitters and pads minicircuits 2 way shure continue reading my wireless.
The download is provided as is, with no modifications or changes made on our side. The intermod software is designed for professional audio wireless microphone users, av installers of wireless devices, frequency coordinators, and broadcasters. Intermodulation interference calculations in the landmobile service 19952007 scope this recommendation serves as a basis for the calculation of a maximum of three intermodulation interference that are created at the output of a receiver under influence of intensive unwanted signals at the. The use of an intermodulation calculator, such as the gl communications intermod calculator, will easily determine where intermodulation might occur, allowing appropriate action to be taken early in the design stage. Software tool identifies rf spectrum intermodulation. Sign up joe stevens pascal intermodulation product calculator for.
Reviewing our products and software is a good place to begin and will give you a better idea of the kinds of wireless diagnostic tools we develop and support. You can filter the applications you use often and create your own tailored specs document. Midians intermod calculator is pcbased intermodulation study and intermodulation calculator software that tests for the possible occurrence of intermodulation products that may cause rx interference. Without fintermod, it would be, literally, shooting in the dark. Intermodulation with wireless microphones 3 key points. The calculator calculates imd intermodulation products based on two fundamental frequencies. Intermod includes tools to help the audio engineer drill down the massive amount of data, to a smaller set of most significant results, allowing better selection or elimination of elements in a given system.
Intermodulation is also referred to as intermodulation distortion, im, imd, intermod and intermod distortion. The user enters the transmitter and receiver frequencies in mhz with their corresponding bandwidths in khz. Intermod intermod is designed to perform detailed intermodulation analysis at a specific site or globally within a stations coverage area. I have had a look online and there are a couple of tools that calculate up to three freqs but nothing bigger. Welcome to intermod assist intermodulation calculator and frequency coordination software.
Download free calculators software and apps for office. This download is usable only by those customers who have purchased and registered their intermod calculators. This software provides a userfriendly technique for predicting expected tensions and fill ratios for a specific cable pull. Fintermod download fintermod calculates rf and optical. The output from the intermod software is used to calculate the results of an intermodulation products study by evaluating the included proposed andor existing facilities at the site. The intmod program performs harmonic and intermodulation analysis of 2 andor 3 signals of 3rd, 5th or 7th order mixing.
There are more calculators on the world wide web than the ones on this. I have been using your program for over two years battling im in the crazy world of vhf. The ip3 value must be much greater than both tone levels for the calculation to be meaningful. Calculate intermodulation for 2 and 3 frequencys up to the 9th order.
Fix bug in spacing acceptance criteria preset buttons to verify spacing of user groups user preset buttons for frequency and spacing. This license type may impose certain restrictions on functionality or only provide an evaluation period. Intermodulation with wireless microphones dbb audio. Also freqfinder allows you to do intermod on multiple brands wireless, which is something i do frequently. Two frequency intermodulation products, three frequency intermodulation products. Further computer and empirical evaluation of these results identifies predicted colocation intermodulation interference levels, noise floor degradation, and. Interference and intermodulation studies are necessary to determine the potential of any new or modified signals interfering with existing signals, so owners can plan and. Intermod assist intermodulation calculator and frequency coordination.
Probe 5 takes advantage of all of your processing cores to provide high speed calculation of longleyrice field strength values using high resolution grids and large coverage areas. Intermod is an application that uses visual basic with an msexcel frontend. F intermod calculates rf and optical intermodulation products. Calculate the intermodulation distortion products imd3 arising from third order nonlinearities thirdorder intercept point, ip3 in rf receivers under twotone input. Rf intermodulation calculator,formula for rf intermodulation. Here is a brief list of f intermod users over the past 20 years.
The free evaluation copy of limited fintermod software will run for a length of 7 days from the date of installation. The user may enter the lists interactively or use a database built from a previous run. Intermodulation interference calculations in the land. Probe 5 is the professional longleyrice propagation model calculation engine and mapping solution for microsoft windows fast longleyrice calculations. Macros are also available to copy intermodulation frequencies for import into frequency coordination software. Intermod professional broadcast engineering software. The free evaluation copy of limited f intermod software will run for a length of 7 days from the date of installation. Calculates frequency sets that are free of intermodulation interference caused by. The most popular versions among the program users are 5.
Online calculators this website offers a collection of online rf tools. The standard intermodulation study allows the user to enter any number of transmitters to be considered at a given location. Its one tool in many to help reduce the number of problems that can arrise when using radios. Intermod assist is a new, groundbreaking software tool specifically designed for. Interference due to intermodulation generally occurs when at least two transmitters close to the receiving antenna produce very strong signals in the receiver. It can be a tremendous job to calculate the intermodulation products from several frequencies, below is a calculator that calculates the intermodulation product from two and three frequencies. Sifm is the sennheiser software for rapid calculation of intermodulationfree radio frequencies for wireless microphone systems. Intermodulation distortion is created when two or more transmission frequencies mix together and form new additional signals. Our builtin antivirus scanned this download and rated it as 100% safe. The software will allow you to consider up to a maximum of four simultaneous components. Intermodulation im is a source of interference from the interaction between two or more signals at different frequencies when they are combined in a nonlinear system.
For example, you could hear strong interference at 14. The use of an intermodulation calculator, such as the gl communications intermod calculator, will easily determine where intermodulation might occur, allowing appropriate action to. Download intermodulation calculator best software for windows. The software is periodically scanned by our antivirus system. Our builtin antivirus checked this download and rated it as 100% safe. Intermod assist is an intermodulation analysis and frequency coordination application. This software package helps system engineering and construction groups model and optimize conduit cable pulls before construction begins. The formulaequation for this rf intermodulation calculator is also mentioned. The intermodulation colocation software then screens the potential intermod interference threats against preset system intermod interference thresholds. A short list of the tools i use most with my wirelessrf challenges. Radio mobile is propagation simulation software free to the amateurradio community radio mobile rf propagation simulation software welcome.
Oct 12, 2009 to obtain motorola software see the sticky in the motorola forum. Intermodulation calculator intermod study software. Joe stevens pascal intermodulation product calculator for radio systems. A general algorithm to calculate third order intermodulation product locations for any number of tones by chris arnott. Sifm is the sennheiser software for rapid calculation of intermodulationfree radio frequencies for wireless. Calculate and output intermod products only due to new planned frequencies for an. It includes features you wont find in any other product including those that cost many times more. Have a look at all the updated systimax performance specifications for the most common applications running over fiber ethernet, fibre channel, infiniband with or without preterminated solutions. Intermodulation calculator free download suggestions. Please bear in mind that the use of the software might be restricted in terms of time or functionality. Doing your own intermod calculation allows you much greater flexability than being stuck with only the factory intermod charts. Marki microwave designs and manufactures rfmicrowave components including mixers, amplifiers, multipliers, couplers, filters and power dividers. So, i scanned the copy provided to me by the author, chris arnott, when. Commonly, this programs installer has the following filename.
They generate huge imposing looking lists of possible intermod products for a technician to investigate. This software calculates the frequencies based on avoiding intermodulation products. Sign up joe stevens pascal intermodulation product calculator for radio systems. Rf calculator conversion from and to various rf units intermodulation calculate intermodulation for 2 and 3 frequencys up to the 9th order. Upgrade your existing intermod calculator by selecting a software version from the list below.
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