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churches, theaters, music groups and private business. I heard one rental house owner mention <br /> that they had to replace over 400 microphones. <br /> Some communities have already changed out their wireless microphones while others are taking <br /> a wait and see approach. <br /> At the conference I learned that T-Mobile bought up 45% of the spectrum space and is <br /> aggressively moving forward to ramp up its 5G network. They put out a U.S. chart in 2017 of <br /> their intended phased rollout but that is already obsolete as they have moved into many areas far <br /> ahead of schedule. <br /> It has been very hard to get specific information from T-Mobile and other companies because <br /> they don't want to tell their competition which areas they are starting up next. One government <br /> conference attendee told a story about contacting T-Mobile and having to sign an NDA but he <br /> was still not given adequate information. He was initially told that his city wouldn't be affected <br /> until mid 2019 but T-Mobile had already started testing. <br /> Other companies besides T-Mobile have also purchased spectrum space and tracking that <br /> information has been difficult. So far we have only been affected in Monticello. The city started <br /> having numerous problems with their microphones in late summer and we tried everything to <br /> correct it. I was able to borrow a spectrum analyzer for a brief time and see that those <br /> frequencies were being used. We tried many options such as changing the frequencies, checking <br /> with other city departments to see if they were using equipment that might be causing <br /> interference etc., with no success in determining exactly where the interference was coming <br /> from. <br /> This problem has cropped up before when wireless users had to vacate the 700 MHz band with <br /> the arrival of DTV. So the real challenge now is trying to purchase equipment that is a little more <br /> future proof Equipment vendors have been trying to steer end users towards purchasing 2.4MHz <br /> wireless microphone equipment but that is in heavy by many cities for Wi-Fi. <br /> • <br /> In Monticello we ended up swapping out their equipment for a Shure digital encrypted system <br /> that allows us to use software to coordinate the frequencies to avoid interference. I have already <br /> ordered a spectrum analyzer so that I can do a city by city check to determine the best <br /> frequencies for each location. The microphones have been in use in Monticello for almost a <br /> month with no problems. <br /> Overall the our cities have a total of 46 wireless systems in use not counting the assistive <br /> listening devices (these are not affected). Of the 46 we have 25 microphones that use 600 Mhz <br /> band. 4 of these have already been replaced in Monticello so that leaves a total of 21. <br /> Wireless microphone manufacturers are currently offering rebates for the trade in of qualifying <br /> 600 MHz systems. In Monticello a new digital handheld wireless microphone with transmitter <br /> 2 <br />