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[QUOTE=&quot;Rickideemus, post: 129611, member: 12677&quot;]The Devil is in the DetailsYou have one ad stating 11.5 dB and another stating 15 dBi. You need much more information before you can make a decision for any given location. First of all, you need to know whether the 11.5 dB figure is dBd or dBi or some other metric. Second, one number can't possibly apply to every frequency. Are these numbers averages, or maximums or minimums? If they are averages, what KIND of average? Are they means? Modes? Medians? Over what range of frequencies?Then, once you get that statistic pinned down, you need figures for beam width and SWR, and you need all this for every frequency you're trying to receive. Then you have to decide whether the manufacturer is a reliable source for any of that information.For the major antennas made by American companies, we have independent experts doing simulations as well limited direct testing with professional equipment, so we have some means of comparison. But saying an antenna is 11.5 dB is like saying a pair of pants is 3 feet -- for what dimension?? Are they stretch pants? Are they shorts? What are we talking about?Then we have the fact you are trying to compare antennas in an indoor situation. In general, if an antenna is better outside it's usually better inside, but there are no hard and fast rules. Indoor reception is a crap shoot, and luck will be a much bigger factor than any little 3.5 dB difference.Rick[/QUOTE]

[QUOTE="Rickideemus, post: 129611, member: 12677"][b]The Devil is in the Details[/b] You have one ad stating 11.5 dB and another stating 15 dBi. You need much more information before you can make a decision for any given location. First of all, you need to know whether the 11.5 dB figure is dBd or dBi or some other metric. Second, one number can't possibly apply to every frequency. Are these numbers averages, or maximums or minimums? If they are averages, what KIND of average? Are they means? Modes? Medians? Over what range of frequencies? Then, once you get that statistic pinned down, you need figures for beam width and SWR, and you need all this for every frequency you're trying to receive. Then you have to decide whether the manufacturer is a reliable source for any of that information. For the major antennas made by American companies, we have independent experts doing simulations as well limited direct testing with professional equipment, so we have some means of comparison. But saying an antenna is 11.5 dB is like saying a pair of pants is 3 feet -- [B]for what dimension??[/B] Are they stretch pants? Are they shorts? What are we talking about? Then we have the fact you are trying to compare antennas in an indoor situation. In general, if an antenna is better outside it's usually better inside, but there are no hard and fast rules. Indoor reception is a crap shoot, and luck will be a much bigger factor than any little 3.5 dB difference. Rick[/QUOTE]

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