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<blockquote data-quote="Jason Glass" data-source="post: 64363" data-attributes="member: 2167">Re: Lets talk about improving wireless mic performanceHi again Frost,I hope you&#039;ve had a chance to read those articles.&nbsp;&nbsp; I did a little more digging into your problem and I&#039;d like to share a few things with you that I found.The first thing to address is that you must be as accurate as possible with your location info when searching the TV channels function in WWB.&nbsp; Chicago is a big place with lots of RF on the air and it&#039;s different everywhere you go, so you want to use your location zip code at minimum.&nbsp; When I do big RF coordinations I use exact latitude and longitude, but that is probably overkill for your situation.We don&#039;t know which version of WWB you&#039;re using, but you must be sure that you have the latest update for your version, since the updates contain the latest TV database info.&nbsp; I did the testing shown below with WWB6.&nbsp; I also don&#039;t know your exact location, so I did this simulation with data collected at Wrigley Field on Sept. 6.We also don&#039;t know how many SLX systems you were running or what frequency band each was in, so I did the simulation with four units in each of these bands:G4, G5, G8, H5, J3, L4.&nbsp; I set up each band in a separate zone for this experiment.There are public safety licenses issued in TV channels 14 and 15 (470 to 482 MHz) across the entire Chicago area.&nbsp; At the Wrigley Field location, there are 85 specific licensed frequencies within that range which we are prohibited from using or interfering with.&nbsp; You can see in the first image that many of these are showing as peaks in the spectrum analysis, but not all are visible.&nbsp; At any time, any of those other licensed transmissions can pop up and cause interference (which is their privilege and right as licensees).&nbsp; So, no mics can operate from 470 to 482 MHz at Wrigley.&nbsp; This covers a big chunk of the SLX G4 band.[ATTACH]150851[/ATTACH]The second image shows the entire UHF spectrum and all of the RF that was detected on the air at Wrigley during the scan.&nbsp; I used that data to calculate as many usable channels as possible for each of the SLX frequency bands.[ATTACH]150852[/ATTACH]Even when I set up the parameters to be as generous as possible (Shure&#039;s &quot;more frequencies&quot; setting and SLX&#039;s set to &quot;master list&quot; mode) the results are bleak, with the exception of the H5 band:G4 - 3 frequencies availableG5 - 0 frequencies availableG8 - 0 frequencies availableH5 - 4 frequencies available + 4 backupsJ3 - 4 frequencies available + 0 backupsL4 - 2 frequencies available[ATTACH]150853[/ATTACH]Please keep in mind that this is specifically for the Wrigley location.&nbsp; If you&#039;re on the other side of town the results could be very different.</blockquote>

[QUOTE="Jason Glass, post: 64363, member: 2167"] Re: Lets talk about improving wireless mic performance Hi again Frost, I hope you've had a chance to read those articles. I did a little more digging into your problem and I'd like to share a few things with you that I found. The first thing to address is that you must be as accurate as possible with your location info when searching the TV channels function in WWB. Chicago is a big place with lots of RF on the air and it's different everywhere you go, so you want to use your location zip code at minimum. When I do big RF coordinations I use exact latitude and longitude, but that is probably overkill for your situation. We don't know which version of WWB you're using, but you must be sure that you have the latest update for your version, since the updates contain the latest TV database info. I did the testing shown below with WWB6. I also don't know your exact location, so I did this simulation with data collected at Wrigley Field on Sept. 6. We also don't know how many SLX systems you were running or what frequency band each was in, so I did the simulation with four units in each of these bands: G4, G5, G8, H5, J3, L4. I set up each band in a separate zone for this experiment. There are public safety licenses issued in TV channels 14 and 15 (470 to 482 MHz) across the entire Chicago area. At the Wrigley Field location, there are 85 specific licensed frequencies within that range which we are prohibited from using or interfering with. You can see in the first image that many of these are showing as peaks in the spectrum analysis, but not all are visible. At any time, any of those other licensed transmissions can pop up and cause interference (which is their privilege and right as licensees). So, no mics can operate from 470 to 482 MHz at Wrigley. This covers a big chunk of the SLX G4 band. [ATTACH=CONFIG]150851.vB5-legacyid=4805[/ATTACH] The second image shows the entire UHF spectrum and all of the RF that was detected on the air at Wrigley during the scan. I used that data to calculate as many usable channels as possible for each of the SLX frequency bands. [ATTACH=CONFIG]150852.vB5-legacyid=4806[/ATTACH] Even when I set up the parameters to be as generous as possible (Shure's "more frequencies" setting and SLX's set to "master list" mode) the results are bleak, with the exception of the H5 band: G4 - 3 frequencies available G5 - 0 frequencies available G8 - 0 frequencies available H5 - 4 frequencies available + 4 backups J3 - 4 frequencies available + 0 backups L4 - 2 frequencies available [ATTACH=CONFIG]150853.vB5-legacyid=4807[/ATTACH] Please keep in mind that this is specifically for the Wrigley location. If you're on the other side of town the results could be very different. [/QUOTE]

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