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Ease Vs Ulysses vs anything else
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<blockquote data-quote="Ivan Beaver" data-source="post: 108700" data-attributes="member: 30"><p>Re: Ease Vs Ulysses vs anything else</p><p></p><p></p><p></p><p>It all depends on the data-where it came from-how much you trust it-how it was gathered and so forth.</p><p></p><p>Not an easy question to answer or get answered.</p><p></p><p>You could start with asking the manufacturer directly a couple of questions and hope they tell the truth-or if the person you are asking even knows the truth or is simply "repeating the company line".</p><p></p><p>To what resolution was the data measured? degrees and octaves</p><p></p><p>Were the "clusters" in the data actually measured as a cluster or was a cluster "put together" in the model?</p><p></p><p>Has there been any manipulation of the measured data? THAT is the TOUGH hard question that will be hard to get an honest answer to.</p><p></p><p>Of course you can also do it the CORRECT way. Build a system in a model. Install the system as per the model. Then do a lot of measurements and VERIFY the results. </p><p></p><p>Compare the prediction to the actual measured results and see how well they compare. If they don't then try to figure out why-and ask the manufacturer why they don't.</p><p></p><p>But who has the time or budget for that------------------------------------</p><p></p><p>There is real value in the prediction software-if the data entered is good. And even if the data has been "fudged"-it is still better (faster-more accurate-easier) than trying to do it with pen and paper.</p><p></p><p>Of course part of the whole "process" is knowing the products used and getting a feel for how they "react" in a real room.</p><p></p><p>By knowing the product-it is much easier to put together a design that works.</p><p></p><p>Very rarely do I change products in a design because of what the model shows me. But rather I use the model to get aiming angles-locations etc. That and having products that actually do what the specs say they do (ESPECIALLY in the coverage angle department) makes a real difference. </p><p></p><p>It is very important to look at a wide range of freq -NOT just a single freq-to get an idea of what the overall system coverage is.</p></blockquote><p></p>
[QUOTE="Ivan Beaver, post: 108700, member: 30"] Re: Ease Vs Ulysses vs anything else It all depends on the data-where it came from-how much you trust it-how it was gathered and so forth. Not an easy question to answer or get answered. You could start with asking the manufacturer directly a couple of questions and hope they tell the truth-or if the person you are asking even knows the truth or is simply "repeating the company line". To what resolution was the data measured? degrees and octaves Were the "clusters" in the data actually measured as a cluster or was a cluster "put together" in the model? Has there been any manipulation of the measured data? THAT is the TOUGH hard question that will be hard to get an honest answer to. Of course you can also do it the CORRECT way. Build a system in a model. Install the system as per the model. Then do a lot of measurements and VERIFY the results. Compare the prediction to the actual measured results and see how well they compare. If they don't then try to figure out why-and ask the manufacturer why they don't. But who has the time or budget for that------------------------------------ There is real value in the prediction software-if the data entered is good. And even if the data has been "fudged"-it is still better (faster-more accurate-easier) than trying to do it with pen and paper. Of course part of the whole "process" is knowing the products used and getting a feel for how they "react" in a real room. By knowing the product-it is much easier to put together a design that works. Very rarely do I change products in a design because of what the model shows me. But rather I use the model to get aiming angles-locations etc. That and having products that actually do what the specs say they do (ESPECIALLY in the coverage angle department) makes a real difference. It is very important to look at a wide range of freq -NOT just a single freq-to get an idea of what the overall system coverage is. [/QUOTE]
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